hphp/test/quick/exception_destructor_1.php

   1 <?php
   2 // Copyright 2004-2015 Facebook. All Rights Reserved.
   3
   4 // Test behavior around exceptions leaking out of destructors.
   5 // Specifically, fatals vs. user exceptions.
   6
   7 class Ex1 extends Exception {
   8 }
   9
  10 class Ex2 extends Exception {
  11 }
  12
  13 class ThrowDestruct1 {
  14   public function __destruct() {
  15     printf("In ThrowDestruct1::__destruct()\n");
  16     throw new Ex1('Exception leaked out of ThrowDestruct1::__destruct()');
  17   }
  18 }
  19
  20 class ThrowDestruct2 {
  21   public function __destruct() {
  22     printf("In ThrowDestruct2::__destruct()\n");
  23     throw new Ex2('Exception leaked out of ThrowDestruct2::__destruct()');
  24   }
  25 }
  26
  27 class ExitDestruct {
  28   public function __destruct() {
  29     printf("In ExitDestruct::__destruct()\n");
  30     exit();
  31   }
  32 }
  33
  34 function bar() {
  35   $td2 = new ThrowDestruct2;
  36
  37   // The exit() in ExitDestruct::__destruct() should prevent the destructor
  38   // for $td2 from running, as well as any up-stack destructors.
  39   $ed = new ExitDestruct;
  40 }
  41
  42 function foo() {
  43   $td1 = new ThrowDestruct1;
  44   printf("Calling bar()\n");
  45   bar();
  46   printf("After bar()\n");
  47 }
  48
  49 function printPreviousExceptions($e) {
  50   $i = 0;
  51
  52   while ($e = $e->getPrevious()) {
  53     printf("\tPrevious #%d: %s\n", ++$i, $e->getMessage());
  54   }
  55 }
  56
  57 function main() {
  58   printf("main() starting\n");
  59
  60   try {
  61     printf("Calling foo()\n");
  62     foo();
  63     printf("After foo()\n");
  64   }
  65   catch (Exception $e) {
  66     printf("Caught %s in main()\n", $e->getMessage());
  67     printPreviousExceptions($e);
  68   }
  69
  70   printf("main() ending\n");
  71 }
  72
  73 printf("Calling main()\n");
  74 main();
  75 printf("Returned from main(), exiting\n");