/*
 * 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 error if an abstract member m is declared or
 * inherited in a concrete class C unless:
 *  - m overrides a concrete member, or
 *  - C has a noSuchMethod() method distinct from the one declared in class
 *    Object.
 * @description Checks that it is a compile error if an abstract method is
 * inherited in a concrete class. Test type aliases
 * @compile-error
 * @author sgrekhov@unipro.ru
 */
// SharedOptions=--enable-experiment=nonfunction-type-aliases
abstract class A {
  foo([x]);
}
typedef AAlias = A;

class C extends AAlias {
}

main() {
  new C();
}