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Issue 10908287:
Make identical(a,b) a compile-time constant in dart2js. (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart| OLD | NEW |
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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 /** | 5 /** |
| 6 * Everything in Dart is an [Object]. | 6 * Everything in Dart is an [Object]. |
| 7 */ | 7 */ |
| 8 class Object { | 8 class Object { |
| 9 const Object(); | 9 const Object(); |
| 10 | 10 |
| 11 bool operator ==(other) => this === other; | 11 bool operator ==(other) => identical(this, other); |
| 12 | 12 |
| 13 get dynamic => this; | 13 get dynamic => this; |
| 14 | 14 |
| 15 external String toString(); | 15 external String toString(); |
| 16 | 16 |
| 17 external void noSuchMethod(String name, List args); | 17 external void noSuchMethod(String name, List args); |
| 18 } | 18 } |
| 19 | |
| 20 /** | |
| 21 * Check whether two references are to the same object. | |
| 22 */ | |
| 23 bool identical(Object a, Object b) => a === b; | |
|
ahe
2012/09/18 08:30:17
This file is called "object.dart". This function i
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