Language/Expressions/Lookup/Getter_and_Setter_Lookup/definition_t03.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 The result of a lookup of a getter (respectively setter) m in
/// class C with respect to library L is: If C declares a concrete instance
/// getter (respectively setter) named m that is accessible to L, then that
/// getter (respectively setter) is the result of the lookup. Otherwise, if C
/// has a superclass S, then the result of the lookup is the result of looking
/// up getter (respectively setter) m in S with respect to L. Otherwise, we say
/// that the lookup has failed.
/// @description Checks that if there are appropriately named getters in several
/// classes in C's hierarchy, only the one from the class closest to C is
/// returned and the subclasses are not considered.
/// @author msyabro, sgrekhov@unipro.ru

import '../../../../Utils/expect.dart';

class S1 {
  get v { Expect.fail("Wrong getter was called");}
}

class C1 extends S1 {
  get v => 1;
}

class Sub1 extends C1 {
  get v { Expect.fail("Wrong getter was called");}
}

class S2 {
  get v { Expect.fail("Wrong getter was called");}
}

class S3 extends S2 {
  get v => 2;
}

class C2 extends S3 {}

class Sub2 extends C2 {
  get v { Expect.fail("Wrong getter was called");}
}

main()  {
  var o1 = new C1();
  Expect.equals(1, o1.v);

  var o2 = new C2();
  Expect.equals(2, o2.v);
}