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Side by Side Diff: pkg/crypto/lib/src/hash_utils.dart

Issue 16410007: Get the api docs generated for the crypto package (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 7 years, 6 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, 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.crypto; 5 part of crypto;
6 6
7 // Constants. 7 // Constants.
8 const _MASK_8 = 0xff; 8 const _MASK_8 = 0xff;
9 const _MASK_32 = 0xffffffff; 9 const _MASK_32 = 0xffffffff;
10 const _BITS_PER_BYTE = 8; 10 const _BITS_PER_BYTE = 8;
11 const _BYTES_PER_WORD = 4; 11 const _BYTES_PER_WORD = 4;
12 12
13 // Helper functions used by more than one hasher. 13 // Helper functions used by more than one hasher.
14 14
15 // Rotate left limiting to unsigned 32-bit values. 15 // Rotate left limiting to unsigned 32-bit values.
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26 int this._digestSizeInWords, 26 int this._digestSizeInWords,
27 bool this._bigEndianWords) 27 bool this._bigEndianWords)
28 : _pendingData = [] { 28 : _pendingData = [] {
29 _currentChunk = new List(_chunkSizeInWords); 29 _currentChunk = new List(_chunkSizeInWords);
30 _h = new List(_digestSizeInWords); 30 _h = new List(_digestSizeInWords);
31 } 31 }
32 32
33 // Update the hasher with more data. 33 // Update the hasher with more data.
34 add(List<int> data) { 34 add(List<int> data) {
35 if (_digestCalled) { 35 if (_digestCalled) {
36 throw new HashException( 36 throw new StateError(
37 'Hash update method called after digest was retrieved'); 37 'Hash update method called after digest was retrieved');
38 } 38 }
39 _lengthInBytes += data.length; 39 _lengthInBytes += data.length;
40 _pendingData.addAll(data); 40 _pendingData.addAll(data);
41 _iterate(); 41 _iterate();
42 } 42 }
43 43
44 // Finish the hash computation and return the digest string. 44 // Finish the hash computation and return the digest string.
45 List<int> close() { 45 List<int> close() {
46 if (_digestCalled) { 46 if (_digestCalled) {
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145 // Hasher state. 145 // Hasher state.
146 final int _chunkSizeInWords; 146 final int _chunkSizeInWords;
147 final int _digestSizeInWords; 147 final int _digestSizeInWords;
148 final bool _bigEndianWords; 148 final bool _bigEndianWords;
149 int _lengthInBytes = 0; 149 int _lengthInBytes = 0;
150 List<int> _pendingData; 150 List<int> _pendingData;
151 List<int> _currentChunk; 151 List<int> _currentChunk;
152 List<int> _h; 152 List<int> _h;
153 bool _digestCalled = false; 153 bool _digestCalled = false;
154 } 154 }
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