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28 lines
635 B
JavaScript
28 lines
635 B
JavaScript
"use strict";
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const consumable = require("@joepie91/consumable");
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module.exports = function pListen() {
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let listeners = consumable([]);
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function consumeListeners() {
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/* To ensure that a resolve/reject is atomic, and can never apply to the same listener queue twice. */
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return listeners.replace([]);
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}
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return {
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listen: function () {
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return new Promise((resolve, _reject) => {
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listeners.peek().push(resolve);
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});
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},
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notify: function (promise) {
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consumeListeners().forEach((listener) => {
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// Docs: Pass in a rejected promise to produce a rejection on listeners
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listener(promise);
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});
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}
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};
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};
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