// 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 Unless explicitly stated otherwise, all ordinary rules that apply
/// to methods apply to abstract methods.
/// It is a static warning if an instance method m1 overrides an instance member
/// m2 and m1 has a greater number of required parameters than m2.
/// @description Checks that a compile error is produced when an abstract
/// method overrides a non-abstract instance method with the same name and
/// greater number of required parameters. Test type aliases
/// @author sgrekhov@unipro.ru

class A {
  f(var x) {}
}
typedef AAlias = A;

abstract class C extends AAlias {
  f(var x, var y);
//^
// [analyzer] unspecified
// [cfe] unspecified
}
typedef CAlias = C;

class D extends CAlias {
  f(var x, var y) {}
}

main() {
  new A().f(2);
  new D().f(2, 2);
}