| /* |
| * 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 constant map is cannonicalized and immutable. |
| * @author iarkh@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=constant-update-2018 |
| |
| import "../../Utils/expect.dart"; |
| |
| const Map map1 = {1: 1, 2: 2, 3: 3}; |
| const Map map2 = {}; |
| |
| main() { |
| const Map res1 = {...map1}; |
| Expect.equals(map1, res1); |
| Expect.throws(() => res1.clear()); |
| |
| const Map res2 = {...map2}; |
| Expect.equals(map2, res2); |
| Expect.throws(() => res2.addAll({7: 19})); |
| } |
