| /* |
| * Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
| * for details. All rights reserved. Use of this source code is governed by a |
| * BSD-style license that can be found in the LICENSE file. |
| */ |
| /** |
| * @assertion |
| * awaitExpression: |
| * await unaryExpression |
| * |
| * @description Verify several kinds of valid await expressions inside |
| * functions with async* modifier |
| * @author a.semenov@unipro.ru |
| */ |
| import 'dart:async'; |
| import '../../../Utils/expect.dart'; |
| |
| |
| f() { |
| return new Future<int>.value(1); |
| } |
| |
| Stream test() async* { |
| int x = 100500; |
| |
| await true; |
| await 1; |
| await x; |
| await (x + 3); |
| await x++; |
| await --x; |
| await ((x + 10) * 10); |
| await 'hello'; |
| await f(); |
| await (await f()); |
| await ! await false; |
| await ~ await (x * x); |
| await - await f(); |
| await (10 - await 5); |
| await await 'bye bye'; |
| } |
| |
| class S { |
| var x = 1; |
| operator -() { return this; } |
| operator ~() { return this; } |
| } |
| |
| class A extends S { |
| Stream test() async* { |
| await - super; |
| await ~ super; |
| } |
| } |
| |
| main() { |
| asyncStart(); |
| test().isEmpty.then( |
| (value) => new A().test().isEmpty |
| ).then( |
| (value) => asyncEnd() |
| ); |
| } |