hphp/test/slow/inout/shadow.php

   1 <?hh
   2
   3 function wrap($x) {
   4   return ', '.$x.'!';
   5 }
   6
   7 function io(inout $x, $y) {
   8   $x = 'hello';
   9   return $y;
  10 }
  11
  12 function main() {
  13   $f = [1, 'world', 3];
  14   $ret = io(inout $f, wrap($f[1]));
  15   echo $f.$ret."\n";
  16
  17   $f = [null, 'x', [1, 'world', 3]];
  18   $ret = io(inout $f, wrap($f[2][1]));
  19   echo $f.$ret."\n";
  20
  21   $f = [null, 'x', [1, 'orl', 3]];
  22   $ret = io(inout $f, wrap('w'.$f[2][1].'d'));
  23   echo $f.$ret."\n";
  24
  25   $f = 'orl';
  26   $ret = io(inout $f, wrap('w'.$f.'d'));
  27   echo $f.$ret."\n";
  28
  29   $f = 'world';
  30   $ret = io(inout $f, wrap($f ^ 'world' ^ $f));
  31   echo $f.$ret."\n";
  32
  33   $f = 'world';
  34   $ret = io(inout $f, wrap($f));
  35   echo $f.$ret."\n";
  36 }
  37
  38 main();