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Sleeping
; | |
Object.defineProperty(exports, "__esModule", { | |
value: true | |
}); | |
exports.codeFrameFromAst = codeFrameFromAst; | |
exports.codeFrameFromSource = codeFrameFromSource; | |
var _wastPrinter = require("@webassemblyjs/wast-printer"); | |
function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } | |
var SHOW_LINES_AROUND_POINTER = 5; | |
function repeat(char, nb) { | |
return Array(nb).fill(char).join(""); | |
} // TODO(sven): allow arbitrary ast nodes | |
function codeFrameFromAst(ast, loc) { | |
return codeFrameFromSource((0, _wastPrinter.print)(ast), loc); | |
} | |
function codeFrameFromSource(source, loc) { | |
var start = loc.start, | |
end = loc.end; | |
var length = 1; | |
if (_typeof(end) === "object") { | |
length = end.column - start.column + 1; | |
} | |
return source.split("\n").reduce(function (acc, line, lineNbr) { | |
if (Math.abs(start.line - lineNbr) < SHOW_LINES_AROUND_POINTER) { | |
acc += line + "\n"; | |
} // Add a new line with the pointer padded left | |
if (lineNbr === start.line - 1) { | |
acc += repeat(" ", start.column - 1); | |
acc += repeat("^", length); | |
acc += "\n"; | |
} | |
return acc; | |
}, ""); | |
} |