| // Copyright (c) 2018, 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 Mixin application semantics is mostly unchanged, except that it's |
| /// a compile-time error to apply a mixin to a class that doesn't implement all |
| /// the 'on' type requirements of the mixin declaration, or apply a mixin |
| /// containing super-invocations to a class that doesn't have a concrete |
| /// implementation of the super-invoked members compatible with the |
| /// super-constraint interface. |
| /// |
| /// @description Checks that it is a compile error if a mixin is applied to a |
| /// class that does not implement all the 'on' type requirements of the mixin |
| /// declaration. |
| /// @author sgrekhov@unipro.ru |
| |
| class S {} |
| class T {} |
| class X extends S {} |
| class Y extends T {} |
| |
| class I<T> {} |
| class J<T> {} |
| class B<T> {} |
| class C<T> {} |
| |
| mixin M<X extends S, Y extends T> on B<X>, C<Y> implements I<S>, J<T> { |
| } |
| |
| class A<T1, T2, T3, T4> implements B<T1>, C<T2>, I<T3>, J<T4> { |
| } |
| |
| class MA extends A<X, Y, S, S> with M<X, Y> { |
| //^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| |
| main() { |
| new MA(); |
| } |