gcc/testsuite/obj-c++.dg/exceptions-3.mm

   1 /* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, November 2010.  */
   2 /* { dg-options "-fobjc-exceptions" } */
   3 /* { dg-do compile } */
   4
   5 /* Test that the compiler is checking the argument of @catch(), and
   6    produce errors when invalid types are used.  */
   7
   8 #include <objc/objc.h>
   9
  10 @interface MyObject
  11 {
  12   Class isa;
  13 } /* { dg-line interface_MyObject } */
  14 @end
  15
  16 @implementation MyObject
  17 @end
  18
  19 @protocol MyProtocol;
  20
  21 typedef MyObject MyObjectTypedef;
  22 typedef MyObject *MyObjectPtrTypedef;
  23 typedef int intTypedef;
  24
  25 int test (id object)
  26 {
  27   int dummy = 0;
  28
  29   @try { @throw object; }
  30   @catch (int x)          /* { dg-error "@catch parameter is not a known Objective-C class type" } */
  31     {
  32       dummy++;
  33     }
  34
  35   @try { @throw object; }
  36   @catch (intTypedef x)   /* { dg-error "@catch parameter is not a known Objective-C class type" } */
  37     {
  38       dummy++;
  39     }
  40
  41   @try { @throw object; }
  42   @catch (int *x)         /* { dg-error "@catch parameter is not a known Objective-C class type" } */
  43     {
  44       dummy++;
  45     }
  46
  47   @try { @throw object; }
  48   @catch (id x)           /* Ok */
  49     {
  50       dummy++;
  51     }
  52
  53   @try { @throw object; }
  54   @catch (id <MyProtocol> x) /* { dg-error "@catch parameter cannot be protocol-qualified" } */
  55     {
  56       dummy++;
  57     }
  58
  59   @try { @throw object; }
  60   @catch (MyObject *x)    /* Ok */
  61     {
  62       dummy++;
  63     }
  64
  65   @try { @throw object; }
  66   @catch (MyObject <MyProtocol> *x)  /* { dg-error "@catch parameter cannot be protocol-qualified" } */
  67     {
  68       dummy++;
  69     }
  70
  71   @try { @throw object; }
  72   @catch (MyObject x)     /* { dg-error "@catch parameter is not a known Objective-C class type" } */
  73     {                     /* { dg-error "no matching function" "" { target *-*-* } .-1 } */
  74       dummy++;            /* { dg-message "MyObject" "" { target *-*-* } interface_MyObject } */
  75     }                     /* { dg-message "candidate" "" { target *-*-* } interface_MyObject } */
  76   @try { @throw object; }
  77   @catch (static MyObject *x) /* { dg-error "storage class" } */
  78     {
  79       dummy++;
  80     }
  81
  82   @try { @throw object; }
  83   @catch (MyObjectTypedef *x) /* Ok */
  84     {
  85       dummy++;
  86     }
  87
  88   @try { @throw object; }
  89   @catch (MyObjectTypedef <MyProtocol> *x) /* { dg-error "@catch parameter cannot be protocol-qualified" } */
  90     {
  91       dummy++;
  92     }
  93
  94   @try { @throw object; }
  95   @catch (MyObjectPtrTypedef x) /* Ok */
  96     {
  97       dummy++;
  98     }
  99
 100   @try { @throw object; }
 101   @catch (Class x)   /* { dg-error "@catch parameter is not a known Objective-C class type" } */
 102     {
 103       dummy++;
 104     }
 105
 106   @try { @throw object; }
 107   @catch (...)            /* Ok */
 108     {
 109       dummy++;
 110     }
 111
 112   return dummy;
 113 }