Language/Classes/Instance_Variables/type_aliases_t03.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 may contain type alias as a member
/// @author sgrekhov@unipro.ru

import "../../../Utils/expect.dart";
class A {
}

class C extends A {
  AAlias? a;
}
typedef AAlias = A;

main() {
  C c = new C();
  c.a = new AAlias();
  Expect.isNotNull(c.a);
}