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| 1 // Copyright 2016 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Flags: --harmony-async-await --allow-natives-syntax |
| 6 |
| 7 'use strict'; |
| 8 |
| 9 var resolved = Promise.resolve(); |
| 10 var count = 0; |
| 11 |
| 12 Object.defineProperty(Promise.prototype, 'constructor', |
| 13 { get() { count++; return Promise; } }) |
| 14 |
| 15 async function foo() { |
| 16 await resolved; |
| 17 return resolved; |
| 18 } |
| 19 |
| 20 async function bar() { |
| 21 throw 1; |
| 22 } |
| 23 |
| 24 foo(); |
| 25 bar(); |
| 26 %RunMicrotasks(); |
| 27 assertEquals(0, count); |
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