hphp/test/slow/collection_classes/uasort-mutate.php

   1 <?hh
   2
   3 function nonstatic_string(string $a): string {
   4   return __hhvm_intrinsics\launder_value($a) . $a;
   5 }
   6
   7 class Ref { public function __construct(public $v) {} }
   8
   9 <<__EntryPoint>>
  10 function main() {
  11   $m = Map{};
  12   $m[1] = nonstatic_string('c');
  13   $m[2] = nonstatic_string('b');
  14   $m[3] = nonstatic_string('a');
  15   $mut = new Ref(true);
  16   uasort(inout $m, ($a, $b) ==> {
  17     var_dump($a, $b);
  18     if ($mut->v) {
  19       echo "mut\n";
  20       $mut->v = false;
  21       $m[0] = 'dd';
  22       unset($m[3]);
  23       unset($m[2]);
  24       unset($m[1]);
  25       unset($m[0]);
  26     }
  27     return $a <=> $b;
  28   });
  29   var_dump($m);
  30 }