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pub mod bezier;
pub mod subpath;
mod svg_drawing;
mod utils;
use wasm_bindgen::prelude::*;
#[cfg(feature = "logging")]
pub static LOGGER: WasmLog = WasmLog;
#[cfg(feature = "logging")]
thread_local! { pub static HAS_CRASHED: std::cell::RefCell<bool> = const { std::cell::RefCell::new(false) } }
/// Initialize the backend
#[wasm_bindgen(start)]
pub fn init() {
#[cfg(feature = "logging")]
{
// Set up the logger with a default level of debug
log::set_logger(&LOGGER).expect("Failed to set logger");
log::set_max_level(log::LevelFilter::Trace);
fn panic_hook(info: &std::panic::PanicHookInfo<'_>) {
// Skip if we have already panicked
if HAS_CRASHED.with(|cell| cell.replace(true)) {
return;
}
log::error!("{}", info);
}
std::panic::set_hook(Box::new(panic_hook));
}
}
/// Logging to the JS console
#[cfg(feature = "logging")]
#[wasm_bindgen]
extern "C" {
#[wasm_bindgen(js_namespace = console)]
fn log(msg: &str, format: &str);
#[wasm_bindgen(js_namespace = console)]
fn info(msg: &str, format: &str);
#[wasm_bindgen(js_namespace = console)]
fn warn(msg: &str, format: &str);
#[wasm_bindgen(js_namespace = console)]
fn error(msg: &str, format: &str);
}
#[cfg(feature = "logging")]
#[derive(Default)]
pub struct WasmLog;
#[cfg(feature = "logging")]
impl log::Log for WasmLog {
fn enabled(&self, metadata: &log::Metadata) -> bool {
metadata.level() <= log::Level::Info
}
fn log(&self, record: &log::Record) {
let (log, name, color): (fn(&str, &str), &str, &str) = match record.level() {
log::Level::Trace => (log, "trace", "color:plum"),
log::Level::Debug => (log, "debug", "color:cyan"),
log::Level::Warn => (warn, "warn", "color:goldenrod"),
log::Level::Info => (info, "info", "color:mediumseagreen"),
log::Level::Error => (error, "error", "color:red"),
};
let msg = &format!("%c{}\t{}", name, record.args());
log(msg, color)
}
fn flush(&self) {}
}
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