| // 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. |
| |
| // Error when applying any other modifier to mixin classes other than base. |
| |
| final mixin class A {} |
| // [error column 1, length 5] |
| // [analyzer] SYNTACTIC_ERROR.FINAL_MIXIN_CLASS |
| // [cfe] A mixin class can't be declared 'final'. |
| |
| interface mixin class B {} |
| // [error column 1, length 9] |
| // [analyzer] SYNTACTIC_ERROR.INTERFACE_MIXIN_CLASS |
| // [cfe] A mixin class can't be declared 'interface'. |
| |
| sealed mixin class C {} |
| // [error column 1, length 6] |
| // [analyzer] SYNTACTIC_ERROR.SEALED_MIXIN_CLASS |
| // [cfe] A mixin class can't be declared 'sealed'. |
