/*
 * Copyright (c) 2011, 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.
 * 7.1: It is a static-warning if an instance method m1 overrides an instance
 * member m2 and m1 does not declare all the named parameters declared by m2.
 * @description Checks that a static warning is not produced when the overriding non-abstract
 * instance method has more named parameters than the abstract method being overridden
 * and neither have any required parameters.
 * @static-clean
 * @author rodionov
 * @reviewer iefremov
 * @reviewer kaigorodov
 */

abstract class A {
  f({var x, var z});
}

class C extends A {
  f({var x, var y, var z}) {}
}

main() {
  A a=new C();
  a.f(x: 1, z: 3);
  new C().f(x: 1, y: 2, z: 2);
}