| // Copyright (c) 2011, 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 StreamController.broadcast({void onListen(), void onCancel(), |
| /// bool sync: false}) |
| /// If sync is true, events may be fired directly by the stream's subscriptions |
| /// during an add, addError or close call. The returned stream controller is |
| /// a SynchronousStreamController, and must be used with the care and attention |
| /// necessary to not break the Stream contract. See Completer.sync for some |
| /// explanations on when a synchronous dispatching can be used. If in doubt, |
| /// keep the controller non-sync. |
| /// |
| /// @description Checks that if sync is true, instance of |
| /// SynchronousStreamController is created |
| /// @author a.semenov@unipro.ru |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| StreamController streamController = new StreamController.broadcast(sync: true); |
| Expect.isTrue(streamController is SynchronousStreamController); |
| streamController.close(); |
| } |