Language/Classes/Instance_Methods/override_named_parameters_t01.dart

/*
 * 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 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 it is a compile error if an instance method m1
 * overrides an instance member m2 and m1 does not declare all the named 
 * parameters declared by m2.
 * @compile-error
 * @author rodionov
 */

class A {
  foo(var a, {x, y}) {}
}

class C extends A {
  foo(var a, {x}) {}
}

main() {
  new A().foo(2);
  new C().foo(1);
}