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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 // TODO(srdjan): fix limitations. | |
| 6 // - shift amount must be a Smi. | |
| 7 class _IntegerImplementation extends _Num { | 5 class _IntegerImplementation extends _Num { |
| 8 // The Dart class _Bigint extending _IntegerImplementation requires a | 6 // The Dart class _Bigint extending _IntegerImplementation requires a |
| 9 // default constructor. | 7 // default constructor. |
| 10 | 8 |
| 11 Type get runtimeType => int; | 9 Type get runtimeType => int; |
| 12 | 10 |
| 13 num operator +(num other) { | 11 num operator +(num other) { |
| 14 var result = other._addFromInteger(this); | 12 var result = other._addFromInteger(this); |
| 15 if (result != null) return result; | 13 if (result != null) return result; |
| 16 return other._toBigint()._addFromInteger(this); | 14 return other._toBigint()._addFromInteger(this); |
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| 619 // Shift by mint exceeds range that can be handled by the VM. | 617 // Shift by mint exceeds range that can be handled by the VM. |
| 620 int _shrFromInt(int other) { | 618 int _shrFromInt(int other) { |
| 621 if (other < 0) { | 619 if (other < 0) { |
| 622 return -1; | 620 return -1; |
| 623 } else { | 621 } else { |
| 624 return 0; | 622 return 0; |
| 625 } | 623 } |
| 626 } | 624 } |
| 627 int _shlFromInt(int other) native "Mint_shlFromInt"; | 625 int _shlFromInt(int other) native "Mint_shlFromInt"; |
| 628 } | 626 } |
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