Disallow ... without type in function typehints

[hiphop-php.git] / hphp / hack / test / typecheck / use_ref2.php

<?hh // strict
/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the "hack" directory of this source tree.
 *
 *
 */

function foo(): void {
  $x = 0;
  $f = function() use (&$x) {};
}