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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | |
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. | |
4 | |
5 part of dart.core; | |
6 | |
7 /** | |
8 * A generic destination for data. | |
9 * | |
10 * Multiple data values can be put into a sink, and when no more data is | |
11 * available, the sink should be closed. | |
12 * | |
13 * This is a generic interface that other data receivers can implement. | |
14 */ | |
15 abstract class Sink<T> { | |
16 /** | |
17 * Put the data into the sink. | |
18 * | |
19 * Must not be called after a call to [close]. | |
20 */ | |
21 void add(T data); | |
22 | |
23 /** | |
24 * Tell the sink that no further data will be added. | |
25 * | |
26 * Calling this method more than once is allowed, but does nothing. | |
27 * | |
28 * The [add] method must not be called after this method. | |
29 */ | |
30 void close(); | |
31 } | |
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