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1 // Copyright 2016 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --harmony-async-await --allow-natives-syntax | 5 // Flags: --harmony-async-await --allow-natives-syntax |
6 | 6 |
7 // Do not install `AsyncFunction` constructor on global object | 7 // Do not install `AsyncFunction` constructor on global object |
8 | 8 |
9 function assertThrowsAsync(run, errorType, message) { | 9 function assertThrowsAsync(run, errorType, message) { |
10 var actual; | 10 var actual; |
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338 assertEquals("start:5 resume:throw1 resume:throw2", log.join(" ")); | 338 assertEquals("start:5 resume:throw1 resume:throw2", log.join(" ")); |
339 | 339 |
340 async function foo() {} | 340 async function foo() {} |
341 assertEquals("async function foo() {}", foo.toString()); | 341 assertEquals("async function foo() {}", foo.toString()); |
342 assertEquals("async function () {}", async function() {}.toString()); | 342 assertEquals("async function () {}", async function() {}.toString()); |
343 assertEquals("async x => x", (async x => x).toString()); | 343 assertEquals("async x => x", (async x => x).toString()); |
344 assertEquals("async x => { return x }", (async x => { return x }).toString()); | 344 assertEquals("async x => { return x }", (async x => { return x }).toString()); |
345 class AsyncMethod { async foo() { } } | 345 class AsyncMethod { async foo() { } } |
346 assertEquals("async foo() { }", Function.prototype.toString.call(AsyncMethod.pro
totype.foo)); | 346 assertEquals("async foo() { }", Function.prototype.toString.call(AsyncMethod.pro
totype.foo)); |
347 assertEquals("async foo() { }", Function.prototype.toString.call({async foo() {
}}.foo)); | 347 assertEquals("async foo() { }", Function.prototype.toString.call({async foo() {
}}.foo)); |
| 348 |
| 349 // Async functions are not constructible |
| 350 assertThrows(() => class extends (async function() {}) {}, TypeError); |
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