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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 patch class Object { | 5 patch class Object { |
6 | 6 |
| 7 // The VM has it's own implemention of equals. |
| 8 bool operator ==(other) native "Object_equals"; |
| 9 |
7 // Helpers used to implement hashCode. If a hashCode is used, we remember it | 10 // Helpers used to implement hashCode. If a hashCode is used, we remember it |
8 // in a weak table in the VM. A new hashCode value is calculated using a | 11 // in a weak table in the VM. A new hashCode value is calculated using a |
9 // number generator. | 12 // number generator. |
10 static final _hashCodeRnd = new Random(); | 13 static final _hashCodeRnd = new Random(); |
11 | 14 |
12 static _getHash(obj) native "Object_getHash"; | 15 static _getHash(obj) native "Object_getHash"; |
13 static _setHash(obj, hash) native "Object_setHash"; | 16 static _setHash(obj, hash) native "Object_setHash"; |
14 | 17 |
15 /* patch */ int get hashCode => _identityHashCode; | 18 /* patch */ int get hashCode => _identityHashCode; |
16 | 19 |
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67 }); | 70 }); |
68 return result; | 71 return result; |
69 } | 72 } |
70 | 73 |
71 int get _cid native "Object_cid"; | 74 int get _cid native "Object_cid"; |
72 | 75 |
73 _leftShiftWithMask32(count, mask) { | 76 _leftShiftWithMask32(count, mask) { |
74 return (this << count) & mask; | 77 return (this << count) & mask; |
75 } | 78 } |
76 } | 79 } |
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