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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 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. |
| 4 |
| 5 import "package:expect/expect.dart"; |
| 6 |
| 7 class A { const A(); } |
| 8 class B extends A { const B(); } |
| 9 |
| 10 main() { |
| 11 var map1 = new Map<B, B>(); |
| 12 map1[const B()] = const B(); |
| 13 var map2 = new Map<B, B>(); |
| 14 var list = <B>[ const B() ]; |
| 15 Map<int, B> map3 = list.asMap(); |
| 16 |
| 17 var maps = [map1, map2, map3]; |
| 18 for (var map in maps) { |
| 19 // Test that the map accepts a value is not of the same type: |
| 20 // Map<?, B>.containsValue(A) |
| 21 Expect.isFalse(map.containsValue(new A())); |
| 22 } |
| 23 } |
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