| // Copyright (c) 2015, 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. |
| |
| import 'dart:async'; |
| |
| /// Simple delegating wrapper around a [StreamConsumer]. |
| /// |
| /// Subclasses can override individual methods, or use this to expose only the |
| /// [StreamConsumer] methods of a subclass. |
| class DelegatingStreamConsumer<T> implements StreamConsumer<T> { |
| final StreamConsumer _consumer; |
| |
| /// Create a delegating consumer forwarding calls to [consumer]. |
| DelegatingStreamConsumer(StreamConsumer consumer) |
| : _consumer = consumer; |
| |
| Future addStream(Stream<T> stream) => _consumer.addStream(stream); |
| |
| Future close() => _consumer.close(); |
| } |