| // 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. | |
| class A<T> {} | |
| mixin class B<T> implements A<T> {} | |
| class C<T> implements A<T> {} | |
| class D implements B<String>, C<int> {} // Error | |
| class E<T> extends B<T> implements C<int> {} // Error | |
| class F<T> with B<String> implements C<T> {} // Error |