| // Copyright (c) 2022, 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. |
| |
| // @dart=2.9 |
| |
| import 'dart:async'; |
| |
| import 'package:expect/expect.dart'; |
| |
| StackTrace stackTrace; |
| |
| main() async { |
| final values = []; |
| await for (final value in produce()) { |
| values.add(value); |
| } |
| Expect.equals('foo', values.single); |
| Expect.isNotNull(stackTrace); |
| } |
| |
| Stream<String> produce() async* { |
| await for (String response in produceInner()) { |
| yield response; |
| } |
| } |
| |
| Stream<String> produceInner() async* { |
| yield 'foo'; |
| stackTrace = StackTrace.current; |
| } |