v8/test/mjsunit/harmony/async-await-no-constructor.js

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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-async-await --allow-natives-syntax
'use strict';
var resolved = Promise.resolve();
var count = 0;
Object.defineProperty(Promise.prototype, 'constructor',
{ get() { count++; return Promise; } })
async function foo() {
await resolved;
return resolved;
}
async function bar() {
throw 1;
}
foo();
bar();
%RunMicrotasks();
assertEquals(0, count);