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'use strict';
const {MAIN, THREAD} = require('./channel.js');
const $coincident = (require('./index.js'));
const main = (require('./window/main.js'));
const thread = (require('./window/thread.js'));
const Worker = (require('./shared/worker.js'));
const proxies = new WeakMap;
/**
* @typedef {object} Coincident
* @property {ProxyHandler<globalThis>} proxy
* @property {ProxyHandler<Window>} window
* @property {(value: any) => boolean} isWindowProxy
*/
/**
* Create once a `Proxy` able to orchestrate synchronous `postMessage` out of the box.
* In workers, returns a `{proxy, window, isWindowProxy}` namespace to reach main globals synchronously.
* @param {Worker | globalThis} self the context in which code should run
* @returns {ProxyHandler<Worker> | Coincident}
*/
const coincident = (self, ...args) => {
const proxy = $coincident(self, ...args);
if (!proxies.has(proxy)) {
const util = self instanceof Worker ? main : thread;
proxies.set(proxy, util.call(args.at(0), proxy, MAIN, THREAD));
}
return proxies.get(proxy);
}
coincident.transfer = $coincident.transfer;
module.exports = coincident;
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