hphp/test/quick/exception_destructor_4.php

   1 <?php
   2 // Copyright 2004-2014 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   // The exit() in ExitDestruct::__destruct() should prevent the destructor
  37   // for $td2 from running, as well as any up-stack destructors.
  38   $ed = new ExitDestruct;
  39   printf("Throwing in bar()\n");
  40   throw new Exception('Exception from bar()');
  41 }
  42
  43 function foo() {
  44   $td1 = new ThrowDestruct1;
  45   printf("Calling bar()\n");
  46   bar();
  47   printf("After bar()\n");
  48 }
  49
  50 function printPreviousExceptions($e) {
  51   $i = 0;
  52
  53   while ($e = $e->getPrevious()) {
  54     printf("\tPrevious #%d: %s\n", ++$i, $e->getMessage());
  55   }
  56 }
  57
  58 function main() {
  59   printf("main() starting\n");
  60
  61   try {
  62     printf("Calling foo()\n");
  63     foo();
  64     printf("After foo()\n");
  65   }
  66   catch (Exception $e) {
  67     printf("Caught %s in main()\n", $e->getMessage());
  68     printPreviousExceptions($e);
  69   }
  70
  71   printf("main() ending\n");
  72 }
  73
  74 printf("Calling main()\n");
  75 main();
  76 printf("Returned from main(), exiting\n");