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Side by Side Diff: utils/template/tokenizer_base.dart

Issue 11361190: a === b -> identical(a, b) (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Address comments. Created 8 years, 1 month ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2011, 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 // Generated by scripts/tokenizer_gen.py. 4 // Generated by scripts/tokenizer_gen.py.
5 5
6 6
7 abstract class TokenSource { 7 abstract class TokenSource {
8 Token next(); 8 Token next();
9 } 9 }
10 10
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173 return c - 87; 173 return c - 87;
174 } else if (c >= 65/*A*/ && c <= 70/*F*/) { 174 } else if (c >= 65/*A*/ && c <= 70/*F*/) {
175 return c - 55; 175 return c - 55;
176 } else { 176 } else {
177 return -1; 177 return -1;
178 } 178 }
179 } 179 }
180 180
181 int readHex([int hexLength]) { 181 int readHex([int hexLength]) {
182 int maxIndex; 182 int maxIndex;
183 if (hexLength === null) { 183 if (hexLength == null) {
184 maxIndex = _text.length - 1; 184 maxIndex = _text.length - 1;
185 } else { 185 } else {
186 // TODO(jimhug): What if this is too long? 186 // TODO(jimhug): What if this is too long?
187 maxIndex = _index + hexLength; 187 maxIndex = _index + hexLength;
188 if (maxIndex >= _text.length) return -1; 188 if (maxIndex >= _text.length) return -1;
189 } 189 }
190 var result = 0; 190 var result = 0;
191 while (_index < maxIndex) { 191 while (_index < maxIndex) {
192 final digit = _hexDigit(_text.charCodeAt(_index)); 192 final digit = _hexDigit(_text.charCodeAt(_index));
193 if (digit == -1) { 193 if (digit == -1) {
194 if (hexLength === null) { 194 if (hexLength == null) {
195 return result; 195 return result;
196 } else { 196 } else {
197 return -1; 197 return -1;
198 } 198 }
199 } 199 }
200 _hexDigit(_text.charCodeAt(_index)); 200 _hexDigit(_text.charCodeAt(_index));
201 // Multiply by 16 rather than shift by 4 since that will result in a 201 // Multiply by 16 rather than shift by 4 since that will result in a
202 // correct value for numbers that exceed the 32 bit precision of JS 202 // correct value for numbers that exceed the 32 bit precision of JS
203 // 'integers'. 203 // 'integers'.
204 // TODO: Figure out a better solution to integer truncation. Issue 638. 204 // TODO: Figure out a better solution to integer truncation. Issue 638.
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456 } 456 }
457 int kind = getIdentifierKind(); 457 int kind = getIdentifierKind();
458 if (kind == TokenKind.IDENTIFIER) { 458 if (kind == TokenKind.IDENTIFIER) {
459 return _finishToken(TokenKind.IDENTIFIER); 459 return _finishToken(TokenKind.IDENTIFIER);
460 } else { 460 } else {
461 return _finishToken(kind); 461 return _finishToken(kind);
462 } 462 }
463 } 463 }
464 } 464 }
465 465
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