| /* |
| * Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file |
| * for details. All rights reserved. Use of this source code is governed by a |
| * BSD-style license that can be found in the LICENSE file. |
| */ |
| /** |
| * @assertion Finally, we define inference on a setOrMapLiteral collection as |
| * follows: |
| * ... |
| * Else, if collection is unambiguously a map literal where P is Map<Pk, Pv>: |
| * |
| * If Pv is ? then the static value type of collection is V where V is the least |
| * upper bound of the inferred value types of the elements. |
| * |
| * @description Checks that if collection is unambiguously a map literal and Pv |
| * is ? then the static value type of collection is V where V is the least |
| * upper bound of the inferred value types of the elements |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=constant-update-2018 |
| import "../../Utils/expect.dart"; |
| |
| class C<K, V> { |
| test(K k, V v) { |
| var m = {k: v, 1: 2}; |
| Expect.isTrue(m is Map<Object, Object>); |
| Expect.isFalse(m is Map<int, Object>); |
| Expect.isFalse(m is Map<Object, int>); |
| } |
| } |
| |
| main() { |
| C<int, int>().test(3, 4); |
| } |