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Issue 1070733002: Dart2js async* functions only resume execution of the body when suspended on yield. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Address review Created 5 years, 8 months ago
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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file.
4
5 // Regression test for https://code.google.com/p/dart/issues/detail?id=23116
6
7 import "package:expect/expect.dart";
8 import "package:async_helper/async_helper.dart";
9 import 'dart:async';
10
11 Stream<int> foo(Completer completer, Future future) async* {
12 completer.complete(100);
13 int x = await future;
14 Expect.equals(42, x);
15 }
16
17 test() async {
18 Completer completer1 = new Completer();
19 Completer completer2 = new Completer();
20 StreamSubscription s = foo(completer1, completer2.future).listen((v) => null);
21 await completer1.future;
22 // At this moment foo is waiting on the given future.
23 s.pause();
24 // Ensure that execution of foo is not resumed - the future is not completed
25 // yet.
26 s.resume();
27 completer2.complete(42);
28 }
29
30 main() {
31 asyncStart();
32 test().then((_) => asyncEnd());
33 }
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