| // Copyright (c) 2023, 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 variables defined by a pattern and its subpatterns (its |
| /// pattern variable set, defined above), are introduced into a scope based on |
| /// where the pattern appears: |
| /// ... |
| /// Pattern assignment: An assignment only assigns to existing |
| /// variables and does not bind any new ones. |
| /// |
| /// @description Checks that it is a compile-time error if an assignment |
| /// declares any new variables. |
| /// @author sgrekhov22@gmail.com |
| |
| import "patterns_lib.dart"; |
| |
| main() { |
| var a = 1; |
| [a, var b1] = [2, 3]; |
| // ^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| {"key1": a, "key2": final int b2} = {"key1": 2, "key2": 3}; |
| // ^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| (a, var b3) = (2, 3); |
| // ^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| Square(areaAsInt: a, sizeAsInt: var b4) = Square(1); |
| // ^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
