// 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.

// @dart = 2.9

/// @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

import "../../Utils/expect.dart";

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() {
  MA ma = new MA();
}