// 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 A variable declaration of one of the forms
/// T v;, T v = e; , const T v = e;, final T v; or final T v = e;
/// always induces an implicit getter function with signature
///   T get v
/// whose invocation evaluates as described below.
/// @description Checks that a compile error is produced when assigning result
/// of T get v() invocation to a variable whose type may not be assigned to T. 
/// The variable declaration is of the form final T v;.
/// @author pagolubev
/// @author a.semenov@unipro.ru


class A {
  A(this.v);
  final int? v;
}

main() {
  A a = new A(1);
  bool? b = a.v;
//          ^
// [analyzer] unspecified
// [cfe] unspecified
}
