hphp/hack/test/typecheck/inter_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 BSD-style license found in the
   7  * LICENSE file in the "hack" directory of this source tree. An additional grant
   8  * of patent rights can be found in the PATENTS file in the same directory.
   9  *
  10  */
  11
  12 class A {
  13   public function get(): void {}
  14 }
  15
  16 function test(): void {
  17   $x = Vector {};
  18   $x[] = 0;
  19   $x[] = '';
  20   $y = $x[0];
  21   if($y instanceof A) {
  22     $y->get();
  23   }
  24 }