| // 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. |
| |
| // @dart = 2.9 |
| |
| /// @assertion From the Unified collection Spec: |
| /// A spreadElement starting with [...] is a constant element if its expression |
| /// is constant and it evaluates to a constant List, Set or Map instance |
| /// originally created by a list, set or map literal. It is a potentially |
| /// constant element if the expression is a potentially constant expression. |
| /// @description: Checks that constant map spread element can be constant map. |
| /// @author iarkh@unipro.ru |
| |
| |
| import "../../Utils/expect.dart"; |
| |
| main() { |
| const Map res1 = const {...{1: 1, 2: 2}, 4: 3}; |
| Expect.mapEquals({1:1, 2: 2, 4: 3}, res1); |
| |
| const Map res2 = const {...<Object, Object>{}}; |
| Expect.mapEquals(<Object, Object>{}, res2); |
| |
| const Map res3 = const {...{}}; |
| Expect.mapEquals({}, res3); |
| } |