| // 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 The grammar changes for map and set are a little more complex |
| /// because of the potential ambiguity of collections containing only spreads. |
| /// The changed and new rules are: |
| /// |
| /// setOrMapLiteral: |
| /// mapLiteral | |
| /// setLiteral | |
| /// mapOrSetLiteral |
| /// ; |
| /// |
| /// mapLiteral: |
| /// const? typeArguments? '{' mapLiteralEntryList? '}' |
| /// ; |
| /// |
| /// mapLiteralEntryList: |
| /// mapLiteralEntry ( ',' mapLiteralEntry )* ','? |
| /// ; |
| /// |
| /// mapLiteralEntry: |
| /// expression ':' expression | |
| /// spread |
| /// ; |
| /// |
| /// setLiteral: |
| /// 'const'? typeArguments? '{' spreadableList '}' ; |
| /// |
| /// mapOrSetLiteral: |
| /// 'const'? '{' spread (',' spread)* '}' ; |
| /// |
| /// @description Checks that spreadable set can be declared as constant |
| /// @author iarkh@unipro.ru |
| |
| |
| import "../../Utils/expect.dart"; |
| |
| main() { |
| const Set set1 = {1, 2, 3}; |
| const set2 = {14, 18, 99}; |
| const list3 = [0, 20, 40, 60, 80]; |
| |
| Expect.setEquals(set1, const {...set1}); |
| Expect.setEquals(set2, const {...set2}); |
| Expect.setEquals(list3.toSet(), const {...list3}); |
| |
| Expect.setEquals({12, 1, 2, 3}, const {12, ...set1}); |
| Expect.setEquals({1, 2, 3, 12, 20, 30, 10}, const {...set1, 12, 20, 30, 10}); |
| |
| Expect.setEquals({1, 2, 3, 14, 18, 99, 0, 20, 40, 60, 80}, |
| const {...set1, ...set2, ...list3}); |
| Expect.setEquals({11, 1, 2, 3, 12, 16, 94, 0, 20, 40, 60, 80}, |
| const {11, ...set1, 12, 16, 94, ...list3}); |
| } |