// Copyright (c) 2016, 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 Evaluation of an assignment a of the form v = e proceeds as
/// follows:
/// Let d be the innermost declaration whose name is v or v =, if it exists.
/// ...
/// Otherwise, if d is the declaration of a static variable, static getter or
/// static setter in class C, then the assignment is equivalent to the assignment
/// C.v = e.
/// @description Checks that an assignment of the form v = e, where v is a name
/// of a static getter in class C, is equivalent to the assignment C.v = e.
/// @author sgrekhov@unipro.ru


class C {

  static int get v => 0;
  
  test() {
    v = 1;
//  ^
// [analyzer] unspecified
// [cfe] unspecified
  }
}

main() {
  C c = new C();
  c.test();
}
