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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 library pub.error_group; | 5 library pub.error_group; |
| 6 | 6 |
| 7 import 'dart:async'; | 7 import 'dart:async'; |
| 8 | 8 |
| 9 /// An [ErrorGroup] entangles the errors of multiple [Future]s and [Stream]s | 9 /// An [ErrorGroup] entangles the errors of multiple [Future]s and [Stream]s |
| 10 /// with one another. This allows APIs to expose multiple [Future]s and | 10 /// with one another. This allows APIs to expose multiple [Future]s and |
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| 120 future._signalError(error, stackTrace); | 120 future._signalError(error, stackTrace); |
| 121 } | 121 } |
| 122 | 122 |
| 123 for (var stream in _streams) { | 123 for (var stream in _streams) { |
| 124 if (stream._isDone || stream._hasListeners) caught = true; | 124 if (stream._isDone || stream._hasListeners) caught = true; |
| 125 stream._signalError(error, stackTrace); | 125 stream._signalError(error, stackTrace); |
| 126 } | 126 } |
| 127 | 127 |
| 128 _isDone = true; | 128 _isDone = true; |
| 129 _done._signalError(error, stackTrace); | 129 _done._signalError(error, stackTrace); |
| 130 if (!caught && !_done._hasListeners) runAsync((){ throw error; }); | 130 if (!caught && !_done._hasListeners) scheduleMicrotask((){ throw error; }); |
| 131 } | 131 } |
| 132 | 132 |
| 133 /// Notifies [this] that one of its member [Future]s is complete. | 133 /// Notifies [this] that one of its member [Future]s is complete. |
| 134 void _signalFutureComplete(_ErrorGroupFuture future) { | 134 void _signalFutureComplete(_ErrorGroupFuture future) { |
| 135 if (_isDone) return; | 135 if (_isDone) return; |
| 136 | 136 |
| 137 _isDone = _futures.every((future) => future._isDone) && | 137 _isDone = _futures.every((future) => future._isDone) && |
| 138 _streams.every((stream) => stream._isDone); | 138 _streams.every((stream) => stream._isDone); |
| 139 if (_isDone) _doneCompleter.complete(); | 139 if (_isDone) _doneCompleter.complete(); |
| 140 } | 140 } |
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| 268 void _signalError(var e, [StackTrace stackTrace]) { | 268 void _signalError(var e, [StackTrace stackTrace]) { |
| 269 if (_isDone) return; | 269 if (_isDone) return; |
| 270 _subscription.cancel(); | 270 _subscription.cancel(); |
| 271 // Call these asynchronously to work around issue 7913. | 271 // Call these asynchronously to work around issue 7913. |
| 272 new Future.value().then((_) { | 272 new Future.value().then((_) { |
| 273 _controller.addError(e, stackTrace); | 273 _controller.addError(e, stackTrace); |
| 274 _controller.close(); | 274 _controller.close(); |
| 275 }); | 275 }); |
| 276 } | 276 } |
| 277 } | 277 } |
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