| // Copyright (c) 2022, 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 |
| /// patternVariableDeclaration ::= ('final' | 'var') outerPattern '=' expression |
| /// |
| /// outerPattern ::= parenthesizedPattern |
| /// | listPattern |
| /// | mapPattern |
| /// | recordPattern |
| /// | objectPattern |
| /// |
| /// @description Check that it is a compile-time error if a final variable is |
| /// assigned twice. Test a list pattern |
| /// @author sgrekhov22@gmail.com |
| |
| class Meta { |
| const Meta(); |
| } |
| |
| main() { |
| @Meta() |
| final [a1, b1] = [1, 2]; |
| a1 = 42; |
| //^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| b1 = 42; |
| //^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| final [int a2, b2, ...List<int> c2] = [3, 4, 5, 6]; |
| a2 = 42; |
| //^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| b2 = 42; |
| //^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| c2 = [1, 2]; |
| //^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| final <int>[a3, b3, ...c3] = [5, 6, 7, 8]; |
| a3 = 42; |
| //^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| b3 = 42; |
| //^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| c3 = [1, 2]; |
| //^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
