// 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 constant expression is an expression whose value can never
 * change, and that can be evaluated entirely at compile time.
 * A constant expression is one of the following:
 * . . .
 * • A qualified reference to a static constant variable that is not qualified
 *   by a deferred prefix.
 * @description Checks that a reference to a static final variable cannot be
 * assigned to a constant variable.
 * @compile-error
 * @author msyabro
 */

class A {
  static final x = 1;
}

const i1 = x;

main() {
  try {
    print(i1);
  } catch (x) {}
}
