// 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 It is a compile-time error if the value of a compile-time
/// constant expression depends on itself.
/// @description Checks that it is a compile-time error if a final instance
/// field depends on a const constructor and vice versa.
/// @author iefremov


class A {
  const A();
  final m = const A();
//      ^
// [analyzer] unspecified
// [cfe] unspecified
}


main() {
  try {
    const A();
  } catch (x) {}
}
