Language/03_Overview/2_Privacy_A01_t21.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 Dart supports two levels of privacy: public and private.
 * A declaration is private iff its name begins with an underscore (the _ character) 
 * otherwise it is public.
 * A declaration m is accessible to library L if m is declared in L or if m is public.
 * @description Checks that private fields/methods inherited from a class declared in another library
 * are not visible and do not overload members from a super class declared in the current library.
 * @author iefremov
 * @reviewer rodionov
 */
library Privacy_A01_t21;
import "../../Utils/expect.dart";
import "2_Privacy_A01_t21_lib.dart";

class A {
  var _var = 54;
  _func() {return 42;}
}

class C extends B {
  test() {
    Expect.equals(54, _var);
    Expect.equals(42, _func());
  }
}

main() {
  try {
    new C().test();
  } catch(x) {}
}