hphp/hack/test/typecheck/foreach_kv_list2.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 function foo(string $x): void {}
  13
  14 function test(): void {
  15   $arr = [[1, 2], [3, 4]];
  16   foreach ($arr as $k => list($x, $y)) {
  17     foo($x);
  18   }
  19 }