Language/Classes/Instance_Variables/definition_t05.dart

// 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 Instance variables are variables whose declarations are
 * immediately contained within a class declaration and that are not declared
 * static. The instance variables of a class C are those instance variables
 * declared by C and the instance variables inherited by C from its superclass.
 * @description Checks that class instance variables may be inherited from a
 * superclass. Test type alias
 * @author sgrekhov@unipro.ru
 */
// SharedOptions=--enable-experiment=nonfunction-type-aliases
import '../../../Utils/expect.dart';

class A {
    var a = 1;
}
class B extends A {
    var b = 2;
}
class C extends B {
    var c = 3;
}
typedef CAlias = C;

main() {
  CAlias c = new CAlias();
  Expect.equals(1, c.a);
  Expect.equals(2, c.b);
  Expect.equals(3, c.c);
}