| // 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 In a constant list or set, a spread element expands at compile |
| /// time to the series of elements contained in the spread object list. |
| /// @description Checks that a spread list element expands at compile time to the |
| /// series of elements contained in the spread object list. |
| /// @author iarkh@unipro.ru |
| |
| import "../../Utils/expect.dart"; |
| |
| main() { |
| const List list1 = [2, 7, 9]; |
| const List list2 = ["checkme"]; |
| const List list3 = []; |
| const List? list4 = null; |
| |
| const res1 = [...list1]; |
| Expect.listEquals(list1, res1); |
| const res2 = [...?list1]; |
| // ^^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '...?' has type 'List<dynamic>' which excludes null. |
| Expect.listEquals(list1, res2); |
| |
| const res3 = [...list2]; |
| Expect.listEquals(list2, res3); |
| const res4 = [...?list2]; |
| // ^^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '...?' has type 'List<dynamic>' which excludes null. |
| Expect.listEquals(list2, res4); |
| |
| const res5 = [...list3]; |
| Expect.listEquals(list3, res5); |
| const res6 = [...?list3]; |
| // ^^^^ |
| // [analyzer] STATIC_WARNING.INVALID_NULL_AWARE_OPERATOR |
| // ^ |
| // [cfe] Operand of null-aware operation '...?' has type 'List<dynamic>' which excludes null. |
| Expect.listEquals(list3, res6); |
| |
| const res7 = [...?list4]; |
| Expect.listEquals([], res7); |
| |
| const res8 = [1, 2, ...list1, 6]; |
| Expect.listEquals([1, 2, 2, 7, 9, 6], res8); |
| |
| const res9 = [1, ...list1, ...list2, ...list3, ...?list4, 18]; |
| Expect.listEquals([1, 2, 7, 9, "checkme", 18], res9); |
| } |