| // 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 map can be declared as constant. |
| /// @author iarkh@unipro.ru |
| |
| |
| import "../../Utils/expect.dart"; |
| |
| main() { |
| const Map map1 = {1: 1, 2: 4, 3: 6}; |
| const Map map2 = {11: 28, 4: 7, 31: 12}; |
| const Map map3 = {0: 0, 7: 2, 5: 4, 6: 6, 8: 8}; |
| |
| Expect.mapEquals(map1, const {...map1}); |
| Expect.mapEquals(map2, const {...map2}); |
| Expect.mapEquals(map3, const {...map3}); |
| |
| Expect.mapEquals({12: 28, 1: 1, 2: 4, 3: 6}, const {12: 28, ...map1}); |
| Expect.mapEquals({1: 1, 2: 4, 3: 6, 12: 3, 112: 4, 33: 0, 10: 14}, |
| const {...map1, 12: 3, 112: 4, 33: 0, 10: 14}); |
| |
| Expect.mapEquals( |
| {1: 1, 2: 4, 3: 6, 11: 28, 4: 7, 31: 12, 0: 0, 7: 2, 5: 4, 6: 6, 8: 8}, |
| const {...map1, ...map2, ...map3}); |
| |
| Expect.mapEquals({18: 2, 1: 1, 2: 4, 3: 6, 0: 14, 11: 23}, |
| const {18: 2, ...map1, 0: 14, 11: 23}); |
| |
| Expect.mapEquals({18: 2, 1: 1, 2: 4, 3: 6, 100: 14, 111: 23, 11: 28, 4: 7, |
| 31: 12, 48: 299, 88: 41, 999: 14, 1000: 333, 0: 0, 7: 2, 5: 4, 6: 6, |
| 8: 8, 64: 39}, |
| const {18: 2, ...map1, 100: 14, 111: 23, ...map2, 48: 299, 88: 41, 999: 14, |
| 1000: 333, ...map3, 64: 39}); |
| } |