// Copyright (c) 2016, 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 Let S be a class, M be a mixin with required superinterfaces
/// T1, . . . , Tn, combined superinterface MS, implemented interfaces
/// I1, . . . , Ik and members as mixin member declarations, and let N be a name.
/// It is a compile-time error to apply M to S if S does not implement, directly
/// or indirectly, all of T1, . . . , Tn.
/// @description Checks that it is no compile error if M has a superinterfaces
/// and C does implement them. Test class C = S with M; syntax. Test type alias
/// @author sgrekhov@unipro.ru

abstract class A {
  int get a;
}

abstract class B {
  int get b;
}

abstract class M implements A, B {
}

typedef MAlias = M;

class S {
  int get a => 0;
  int get b => 1;
}

class C = S with MAlias;

main() {
  new C();
}
