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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 part of dart.utf; | 5 part of dart.utf; |
6 | 6 |
7 class _HelperStreamController<T> extends StreamController<T> { | 7 class _HelperStreamController<T> extends StreamController<T> { |
8 final Function onPauseChanged; | 8 final Function onPauseChanged; |
9 | 9 |
10 _HelperStreamController(this.onPauseChanged); | 10 _HelperStreamController(this.onPauseChanged); |
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45 int consumed = _processBytes(getNext); | 45 int consumed = _processBytes(getNext); |
46 if (consumed > 0) { | 46 if (consumed > 0) { |
47 goodChars = _buffer.length; | 47 goodChars = _buffer.length; |
48 } else if (consumed == 0) { | 48 } else if (consumed == 0) { |
49 _buffer.length = goodChars; | 49 _buffer.length = goodChars; |
50 if (currentPos < 0) { | 50 if (currentPos < 0) { |
51 _carry = []; | 51 _carry = []; |
52 _carry.addAll(carry); | 52 _carry.addAll(carry); |
53 _carry.addAll(bytes); | 53 _carry.addAll(bytes); |
54 } else { | 54 } else { |
55 _carry = bytes.getRange(currentPos, bytes.length - currentPos); | 55 _carry = bytes.sublist(currentPos); |
56 } | 56 } |
57 break; | 57 break; |
58 } else { | 58 } else { |
59 // Invalid byte at position pos - 1 | 59 // Invalid byte at position pos - 1 |
60 _buffer.length = goodChars; | 60 _buffer.length = goodChars; |
61 _addChar(-1); | 61 _addChar(-1); |
62 goodChars = _buffer.length; | 62 goodChars = _buffer.length; |
63 } | 63 } |
64 } | 64 } |
65 if (_buffer.length > 0) { | 65 if (_buffer.length > 0) { |
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179 } | 179 } |
180 for (int i = additionalBytes; i > 0; i--) { | 180 for (int i = additionalBytes; i > 0; i--) { |
181 // 10xxxxxx (xxxxxx is next 6 bits from the top). | 181 // 10xxxxxx (xxxxxx is next 6 bits from the top). |
182 bytes.add(((charCode >> (6 * (i - 1))) & 0x3F) | 0x80); | 182 bytes.add(((charCode >> (6 * (i - 1))) & 0x3F) | 0x80); |
183 } | 183 } |
184 pos += additionalBytes + 1; | 184 pos += additionalBytes + 1; |
185 } | 185 } |
186 return bytes; | 186 return bytes; |
187 } | 187 } |
188 } | 188 } |
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