hphp/hack/test/typecheck/mixed_instanceof.php

   1 <?hh // strict
   2 /**
   3  * Copyright (c) 2014, Facebook, Inc.
   4  * All rights reserved.
   5  *
   6  * This source code is licensed under the MIT license found in the
   7  * LICENSE file in the "hack" directory of this source tree.
   8  *
   9  *
  10  */
  11
  12 function foo(): mixed {
  13   return 0;
  14 }
  15
  16 function test(bool $statement): bool {
  17   if(!$statement) {
  18     $y = foo();
  19     assert($y is Exception);
  20     throw $y;
  21   }
  22   return $statement;
  23 }