| // 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 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 some disambiguilty cases for sets and maps. |
| /// @author iarkh@unipro.ru |
| |
| |
| import "../../Utils/expect.dart"; |
| |
| const l1 = []; |
| const s1 = {11}; |
| const m1 = {1: 1}; |
| const int i1 = 25; |
| const n = null; |
| |
| Set emptyset = {}; |
| |
| main() { |
| const res1 = {...l1}; |
| Expect.setEquals(emptyset, res1); |
| |
| const res2 = {1, ...l1, 2}; |
| Expect.setEquals({1, 2}, res2); |
| |
| const res3 = {...s1}; |
| Expect.setEquals({11}, res3); |
| |
| const res4 = {1, ...s1, 2}; |
| Expect.setEquals({1, 11, 2}, res4); |
| |
| const res5 = {...m1}; |
| Expect.mapEquals(m1, res5); |
| |
| const res6 = {7: 1, ...m1, 3: 14}; |
| Expect.mapEquals({7: 1, 1: 1, 3: 14}, res6); |
| } |