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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 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 | 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 async.delegate.event_sink; | 5 library async.delegate.event_sink; |
6 | 6 |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 | 8 |
9 /// Simple delegating wrapper around an [EventSink]. | 9 /// Simple delegating wrapper around an [EventSink]. |
10 /// | 10 /// |
11 /// Subclasses can override individual methods, or use this to expose only the | 11 /// Subclasses can override individual methods, or use this to expose only the |
12 /// [EventSink] methods of a subclass. | 12 /// [EventSink] methods of a subclass. |
13 class DelegatingEventSink<T> implements EventSink<T> { | 13 class DelegatingEventSink<T> implements EventSink<T> { |
14 final EventSink _sink; | 14 final EventSink _sink; |
15 | 15 |
16 /// Create a delegating sink forwarding calls to [sink]. | 16 /// Create a delegating sink forwarding calls to [sink]. |
17 DelegatingEventSink(EventSink sink) : _sink = sink; | 17 DelegatingEventSink(EventSink sink) : _sink = sink; |
18 | 18 |
19 void add(T data) => _sink.add(data); | 19 void add(T data) { |
| 20 _sink.add(data); |
| 21 } |
20 | 22 |
21 void addError(error, [StackTrace stackTrace]) => | 23 void addError(error, [StackTrace stackTrace]) { |
22 _sink.addError(error, stackTrace); | 24 _sink.addError(error, stackTrace); |
| 25 } |
23 | 26 |
24 void close() => _sink.close(); | 27 void close() { |
| 28 _sink.close(); |
| 29 } |
25 } | 30 } |
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