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