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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 error_group; | 5 library error_group; |
6 | 6 |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 | 8 |
9 import 'utils.dart'; | 9 import 'utils.dart'; |
10 | 10 |
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244 _group._signalError(e); | 244 _group._signalError(e); |
245 }, onDone: () { | 245 }, onDone: () { |
246 _isDone = true; | 246 _isDone = true; |
247 _group._signalStreamComplete(this); | 247 _group._signalStreamComplete(this); |
248 _controller.close(); | 248 _controller.close(); |
249 }); | 249 }); |
250 } | 250 } |
251 | 251 |
252 StreamSubscription listen(void onData(value), | 252 StreamSubscription listen(void onData(value), |
253 {void onError(AsyncError error), void onDone(), | 253 {void onError(AsyncError error), void onDone(), |
254 bool unsubscribeOnError}) { | 254 bool cancelOnError}) { |
255 return _controller.stream.listen(onData, | 255 return _controller.stream.listen(onData, |
256 onError: onError, | 256 onError: onError, |
257 onDone: onDone, | 257 onDone: onDone, |
258 unsubscribeOnError: true); | 258 cancelOnError: true); |
259 } | 259 } |
260 | 260 |
261 /// Signal that an error from [_group] should be propagated through [this], | 261 /// Signal that an error from [_group] should be propagated through [this], |
262 /// unless it's already complete. | 262 /// unless it's already complete. |
263 void _signalError(AsyncError e) { | 263 void _signalError(AsyncError e) { |
264 if (_isDone) return; | 264 if (_isDone) return; |
265 _subscription.cancel(); | 265 _subscription.cancel(); |
266 // Call these asynchronously to work around issue 7913. | 266 // Call these asynchronously to work around issue 7913. |
267 new Future.immediate(null).then((_) { | 267 new Future.immediate(null).then((_) { |
268 _controller.addError(e.error, e.stackTrace); | 268 _controller.addError(e.error, e.stackTrace); |
269 _controller.close(); | 269 _controller.close(); |
270 }); | 270 }); |
271 } | 271 } |
272 } | 272 } |
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