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27 lines
588 B
27 lines
588 B
// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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function assertAsync(b, s) {
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if (!b) {
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%AbortJS(" FAILED!")
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}
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}
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class P extends Promise {
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constructor() {
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super(...arguments)
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return new Proxy(this, {
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get: (_, key) => {
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return key == 'then' ?
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this.then.bind(this) :
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this.constructor.resolve(20)
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}
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})
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}
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}
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let p = P.resolve(10)
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p.key.then(v => assertAsync(v === 20));
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