// 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 If a declaration d named n is in the namespace induced by a 
/// scope S, then d hides any declaration named n that is available in the 
/// lexically enclosing scope of S.
/// @description Checks that no static warning is produced if a local variable
/// declared inside a while loop shadows another local variable declared in an
/// enclosing lexical scope.
/// @author iefremov

import "../../../Utils/expect.dart";

var flag = false;

once() {
  if (flag) {
    return flag;
  }
  flag = true;
  return false;
}

main() {
  var x = 1;
  while (once()) var x = 42;
  Expect.equals(1, x);
}