| /* |
| * 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 From the Unified collections Specification: |
| * If the literal is constant, canonicalize it and make the map immutable. |
| * @description Checks that non-constant map is not cannonicalized and mutable. |
| * @author iarkh@unipro.ru |
| */ |
| |
| import "../../Utils/expect.dart"; |
| |
| const Map? map1 = {1: 1, 2: 2, 3: 3}; |
| const Map? map2 = {}; |
| |
| main() { |
| Map res1 = {...?map1}; |
| Expect.notEquals(map1, res1); |
| res1.clear(); |
| |
| Map res2 = {...?map2}; |
| Expect.notEquals(map2, res2); |
| res2.addAll({7: 19}); |
| |
| Map res3 = {...?null}; |
| Expect.notEquals(map2, res3); |
| res3.addAll({7: 19}); |
| } |