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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 _interceptors; | 5 part of _interceptors; |
6 | 6 |
7 /** | 7 /** |
8 * The super interceptor class for [JSInt] and [JSDouble]. The compiler | 8 * The super interceptor class for [JSInt] and [JSDouble]. The compiler |
9 * recognizes this class as an interceptor, and changes references to | 9 * recognizes this class as an interceptor, and changes references to |
10 * [:this:] to actually use the receiver of the method, which is | 10 * [:this:] to actually use the receiver of the method, which is |
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160 throw new RangeError(precision); | 160 throw new RangeError(precision); |
161 } | 161 } |
162 String result = JS('String', r'#.toPrecision(#)', | 162 String result = JS('String', r'#.toPrecision(#)', |
163 this, precision); | 163 this, precision); |
164 if (this == 0 && isNegative) return "-$result"; | 164 if (this == 0 && isNegative) return "-$result"; |
165 return result; | 165 return result; |
166 } | 166 } |
167 | 167 |
168 String toRadixString(int radix) { | 168 String toRadixString(int radix) { |
169 checkInt(radix); | 169 checkInt(radix); |
170 if (radix < 2 || radix > 36) throw new RangeError(radix); | 170 if (radix < 2 || radix > 36) { |
| 171 throw new RangeError.range(radix, 2, 36, "radix"); |
| 172 } |
171 String result = JS('String', r'#.toString(#)', this, radix); | 173 String result = JS('String', r'#.toString(#)', this, radix); |
172 const int rightParenCode = 0x29; | 174 const int rightParenCode = 0x29; |
173 if (result.codeUnitAt(result.length - 1) != rightParenCode) { | 175 if (result.codeUnitAt(result.length - 1) != rightParenCode) { |
174 return result; | 176 return result; |
175 } | 177 } |
176 return _handleIEtoString(result); | 178 return _handleIEtoString(result); |
177 } | 179 } |
178 | 180 |
179 static String _handleIEtoString(String result) { | 181 static String _handleIEtoString(String result) { |
180 // Result is probably IE's untraditional format for large numbers, | 182 // Result is probably IE's untraditional format for large numbers, |
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455 } | 457 } |
456 | 458 |
457 class JSDouble extends JSNumber implements double { | 459 class JSDouble extends JSNumber implements double { |
458 const JSDouble(); | 460 const JSDouble(); |
459 Type get runtimeType => double; | 461 Type get runtimeType => double; |
460 } | 462 } |
461 | 463 |
462 class JSPositiveInt extends JSInt {} | 464 class JSPositiveInt extends JSInt {} |
463 class JSUInt32 extends JSPositiveInt {} | 465 class JSUInt32 extends JSPositiveInt {} |
464 class JSUInt31 extends JSUInt32 {} | 466 class JSUInt31 extends JSUInt32 {} |
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