hphp/hack/test/typecheck/functional_anon_fun.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 class A {
  13
  14   public function doStuff(): void {
  15     return;
  16   }
  17 }
  18
  19 function f(int $x): int {
  20   $f = function($y) use ($x) {
  21     return $y->doStuff();
  22   };
  23   call_user_func($f, new A());
  24   return call_user_func($f, new A());
  25 }