hphp/test/slow/control-flow/bug-4976291.php

   1 <?php
   2
   3 class E {}
   4
   5 class Dlgt extends E {
   6   private $ent;
   7   function __construct(E $e) {
   8     $this->ent = $e;
   9   }
  10 }
  11
  12 class Dlgr {
  13   function getDlgtObject($blah) {
  14     return $blah ? new Dlgt($blah) : nullptr;
  15   }
  16 }
  17
  18 class X {
  19   private static $classCache = array();
  20
  21   static function getuirc(E $blah) {
  22     $blah_class = get_class($blah);
  23     if (!array_key_exists($blah_class, self::$classCache)) {
  24       $blah_uric = null;
  25       for ($cls = $blah_class; $cls; $cls = get_parent_class($cls)) {
  26         $blah_uric = $cls.'URILoader';
  27         if (class_exists($blah_uric)) {
  28           break;
  29         }
  30       }
  31
  32       if (is_subclass_of($blah_uric, Dlgr::class)) {
  33         $d = $blah_uric::getDlgtObject($blah);
  34         if ($d) {
  35           $blah_class = get_class($d);
  36           $blah_uric = self::getuirc($d);
  37         }
  38       }
  39
  40       self::$classCache[$blah_class] =
  41         ($blah_uric !== __CLASS__ && class_exists($blah_uric)) ?
  42         $blah_uric :
  43         null;
  44     }
  45     return self::$classCache[$blah_class];
  46   }
  47
  48 }
  49
  50 class D1 extends Dlgt {}
  51 class D1URILoader {}
  52 class F extends E {}
  53 class FURILoader extends Dlgr {
  54   function getDlgtObject($blah) {
  55     return new D1($blah);
  56   }
  57 }
  58
  59 class D2 extends Dlgt {}
  60 class D2URILoader {}
  61 class G extends E {}
  62 class GURILoader extends Dlgr {
  63   function getDlgtObject($blah) {
  64     return new D2($blah);
  65   }
  66 }
  67 class H extends G {}
  68
  69 function main($x) {
  70   X::getuirc($x);
  71 }
  72
  73 for ($i=0; $i < 20; $i++) {
  74   main(new F);
  75   main(new H);
  76 }
  77
  78 echo "Done\n";