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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, 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 import "package:expect/expect.dart"; | 5 import "package:expect/expect.dart"; |
6 | 6 |
7 class A { | 7 class A { |
8 static const b = const B(); | 8 static const b = const B(); |
9 } | 9 } |
10 | 10 |
11 class B implements A { | 11 class B implements A { |
12 const B(); | 12 const B(); |
13 | 13 |
14 operator ==(o) => true; /// 00: compile-time error | 14 operator ==(o) => true; //# 00: compile-time error |
15 } | 15 } |
16 | 16 |
17 main() { | 17 main() { |
18 // It is a compile-time error if the key type overrides operator ==. | 18 // It is a compile-time error if the key type overrides operator ==. |
19 var m = const { A.b: 42 }; | 19 var m = const { A.b: 42 }; |
20 Expect.equals(42, m[const B()]); | 20 Expect.equals(42, m[const B()]); |
21 | 21 |
22 m = const { "foo": 99, A.b: 499 }; | 22 m = const { "foo": 99, A.b: 499 }; |
23 Expect.equals(499, m[const B()]); | 23 Expect.equals(499, m[const B()]); |
24 } | 24 } |
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