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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 crypto.base64.decoder_sink; | |
6 | |
7 import 'dart:convert'; | 5 import 'dart:convert'; |
8 | 6 |
9 import 'decoder.dart'; | 7 import 'decoder.dart'; |
10 | 8 |
11 /// A [ChunkedConversionSink] for decoding chunks of Base64 strings to data. | 9 /// A [ChunkedConversionSink] for decoding chunks of Base64 strings to data. |
12 class Base64DecoderSink extends ChunkedConversionSink<String> { | 10 class Base64DecoderSink extends ChunkedConversionSink<String> { |
13 /// The encoder used to decode each chunk. | 11 /// The encoder used to decode each chunk. |
14 final Base64Decoder _decoder = new Base64Decoder(); | 12 final Base64Decoder _decoder = new Base64Decoder(); |
15 | 13 |
16 /// The underlying sink to which to emit the decoded strings. | 14 /// The underlying sink to which to emit the decoded strings. |
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42 if (decodableLength > 0) { | 40 if (decodableLength > 0) { |
43 _outSink.add(_decoder.convert(chunk.substring(0, decodableLength))); | 41 _outSink.add(_decoder.convert(chunk.substring(0, decodableLength))); |
44 } | 42 } |
45 } | 43 } |
46 | 44 |
47 void close() { | 45 void close() { |
48 if (_unconverted.isNotEmpty) _outSink.add(_decoder.convert(_unconverted)); | 46 if (_unconverted.isNotEmpty) _outSink.add(_decoder.convert(_unconverted)); |
49 _outSink.close(); | 47 _outSink.close(); |
50 } | 48 } |
51 } | 49 } |
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