// 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 Let sb be a break statement. If sb is of the form break L;, then
 * let sE be the the innermost labeled statement with label L enclosing sb. If
 * sb is of the form break;, then let sE be the innermost do, for, switch or
 * while statement enclosing sb. It is a compile-time error if no such statement
 * sE exists within the innermost function in which sb occurs.
 * @description Checks that it is a compile-time error when a break statement of
 * the form "break L;" references a labeled case clause (adjacent or enclosing)
 * rather than a statement.
 * @compile-error
 * @author rodionov
 */

main() {
  switch (0) {
    L:
    case 0:
      for (int i in [1,2]) {
        break L;
      }
  }
}
