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- /*
- Copyright 2018 Google LLC
- Use of this source code is governed by an MIT-style
- license that can be found in the LICENSE file or at
- https://opensource.org/licenses/MIT.
- */
- import '../_version.js';
- /**
- * The Deferred class composes Promises in a way that allows for them to be
- * resolved or rejected from outside the constructor. In most cases promises
- * should be used directly, but Deferreds can be necessary when the logic to
- * resolve a promise must be separate.
- *
- * @private
- */
- class Deferred {
- /**
- * Creates a promise and exposes its resolve and reject functions as methods.
- */
- constructor() {
- this.promise = new Promise((resolve, reject) => {
- this.resolve = resolve;
- this.reject = reject;
- });
- }
- }
- export { Deferred };
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