// Copyright (c) 2019, 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 It is a compile-time error if the superclass of a class C is
/// specified as a superinterface of C.
/// @description Test checks that it is a compile-time error when a class has
/// the same class as superclass and interface. Test type aliases
/// @author sgrekhov@unipro.ru

abstract class A {}

typedef AAlias = A;

class C extends AAlias implements A {}
//                                ^
// [analyzer] unspecified
// [cfe] unspecified

main () {
  new C();
}