| // 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 If the resulting class would have any naming conflicts, or other |
| /// compile-time errors, the enum declaration is invalid and a compile-time |
| /// error occurs. Such errors include, but are not limited to: |
| /// ... |
| /// Declaring or mixing in a member which is not a valid override of a |
| /// super-interface member declaration, including, but not limited to, the index |
| /// and toString members of Enum. |
| /// |
| /// @description Check that it is a compile-time error to mixin a member which |
| /// is not a valid override of a super-interface member declaration |
| /// @author sgrekhov@unipro.ru |
| /// @issue 48298 |
| |
| // SharedOptions=--enable-experiment=enhanced-enums |
| |
| mixin M1 on Enum { |
| String get index => "Lily was here"; |
| // ^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| int toString() => 42; |
| // ^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| enum E1 with M1 { |
| // ^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| e1, |
| e2, |
| e3; |
| } |
| |
| mixin M2 on Enum { |
| int index() => 42; |
| // ^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| void set toString(int index) {} |
| // ^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| |
| enum E2<T> with M2 { |
| // ^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| e1<int>(42), |
| e2<String>("42"), |
| e3<bool>(false); |
| |
| const E2(T t); |
| } |
| |
| main() { |
| E1.e1; |
| E2.e1; |
| } |