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- 'use strict';
- var aCallable = require('../internals/a-callable');
-
- var $TypeError = TypeError;
-
- var PromiseCapability = function (C) {
- var resolve, reject;
- this.promise = new C(function ($$resolve, $$reject) {
- if (resolve !== undefined || reject !== undefined) throw new $TypeError('Bad Promise constructor');
- resolve = $$resolve;
- reject = $$reject;
- });
- this.resolve = aCallable(resolve);
- this.reject = aCallable(reject);
- };
-
- // `NewPromiseCapability` abstract operation
- // https://tc39.es/ecma262/#sec-newpromisecapability
- module.exports.f = function (C) {
- return new PromiseCapability(C);
- };
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