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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 class _Double extends _Num implements double { | 5 class _Double extends _Num implements double { |
| 6 factory _Double.fromInteger(int value) | 6 factory _Double.fromInteger(int value) |
| 7 native "Double_doubleFromInteger"; | 7 native "Double_doubleFromInteger"; |
| 8 | 8 |
| 9 Type get runtimeType => double; | 9 Type get runtimeType => double; |
| 10 | 10 |
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| 44 | 44 |
| 45 double remainder(num other) { | 45 double remainder(num other) { |
| 46 return _remainder(other.toDouble()); | 46 return _remainder(other.toDouble()); |
| 47 } | 47 } |
| 48 double _remainder(double other) native "Double_remainder"; | 48 double _remainder(double other) native "Double_remainder"; |
| 49 double operator -() { | 49 double operator -() { |
| 50 if (this == 0.0) { | 50 if (this == 0.0) { |
| 51 // -0.0 is canonicalized by the VM's parser, therefore no cycles. | 51 // -0.0 is canonicalized by the VM's parser, therefore no cycles. |
| 52 return isNegative ? 0.0 : -0.0; | 52 return isNegative ? 0.0 : -0.0; |
| 53 } | 53 } |
| 54 if (this.isNaN) { |
| 55 return this._flipNANsign; |
| 56 } |
| 54 return 0.0 - this; | 57 return 0.0 - this; |
| 55 } | 58 } |
| 59 double get _flipNANsign native "Double_flipNANsign"; |
| 60 |
| 56 bool operator ==(other) { | 61 bool operator ==(other) { |
| 57 if (!(other is num)) return false; | 62 if (!(other is num)) return false; |
| 58 return _equal(other.toDouble()); | 63 return _equal(other.toDouble()); |
| 59 } | 64 } |
| 60 bool _equal(double other)native "Double_equal"; | 65 bool _equal(double other)native "Double_equal"; |
| 61 bool _equalToInteger(int other) native "Double_equalToInteger"; | 66 bool _equalToInteger(int other) native "Double_equalToInteger"; |
| 62 bool operator <(num other) { | 67 bool operator <(num other) { |
| 63 return other > this; | 68 return other > this; |
| 64 } | 69 } |
| 65 bool operator >(num other) { | 70 bool operator >(num other) { |
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| 264 return EQUAL; | 269 return EQUAL; |
| 265 } | 270 } |
| 266 } else if (isNaN) { | 271 } else if (isNaN) { |
| 267 return other.isNaN ? EQUAL : GREATER; | 272 return other.isNaN ? EQUAL : GREATER; |
| 268 } else { | 273 } else { |
| 269 // Other is NaN. | 274 // Other is NaN. |
| 270 return LESS; | 275 return LESS; |
| 271 } | 276 } |
| 272 } | 277 } |
| 273 } | 278 } |
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