hphp/test/slow/inout/tuple/tests/func-interop-dynamic.php

   1 <?hh
   2
   3 function foo(inout $x) {
   4   $x = 42;
   5   $bt = array_slice(debug_backtrace(), 0, 2);
   6   echo implode(', ', array_map($a ==> $a['function'], $bt))."\n";
   7   return 'Hello';
   8 }
   9
  10 function bar(&$y) {
  11   $y = 9;
  12   $bt = array_slice(debug_backtrace(), 0, 2);
  13   echo implode(', ', array_map($a ==> $a['function'], $bt))."\n";
  14   return 'world!';
  15 }
  16
  17 function main($foo, $bar) {
  18   $a = null;
  19   $b = null;
  20   $c = null;
  21   $g1 = $foo(inout $a);
  22   $g2 = $foo(&$b);
  23   $g3 = $foo(&$c);
  24   var_dump($a, $b, $c);
  25
  26   $x = null;
  27   $y = null;
  28   $z = null;
  29   $h1 = $bar(&$x);
  30   $h2 = $bar(&$y);
  31   $h3 = $bar(inout $z);
  32   var_dump($x, $y, $z);
  33
  34   echo "$g1, $h1\n";
  35   echo "$g2, $h2\n";
  36   echo "$g2, $h2\n";
  37 }
  38
  39 main('foo', 'bar');