No error on use of `unsafe_cast`

[hiphop-php.git] / hphp / hack / test / typecheck / test_michal2.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 test(?int $x): int {
  if ($x !== null) {
    $x = null;
  }
  return $x;
}