gcc/testsuite/objc/execute/bf-common.h

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include "../../objc-obj-c++-shared/runtime.h"
   5
   6 /* The following header, together with the implementation included below,
   7    emulate functionality provided by the GNU runtime but not available from
   8    the NeXT runtime.  */
   9 #include "../../objc-obj-c++-shared/objc-test-suite-next-encode-assist.h"
  10
  11 #if defined(__NEXT_RUNTIME__) && !defined(NEXT_OBJC_USE_NEW_INTERFACE)
  12 void print_ivars (Class class)
  13 {
  14   struct objc_ivar_list* ivars = class->ivars;
  15   int i;
  16
  17   for (i = 0; i < ivars->ivar_count; i++) {
  18     struct objc_ivar *ivar = &(ivars->ivar_list[i]);
  19     printf ("ivar '%s', type '%s', offset %d\n",
  20             ivar->ivar_name, ivar->ivar_type, ivar->ivar_offset);
  21   }
  22 }
  23
  24 void compare_structures (Class class, const char* type)
  25 {
  26   struct objc_struct_layout layout;
  27   struct objc_ivar_list* ivars = class->ivars;
  28   int i = 0;
  29   int position;
  30
  31   objc_layout_structure (type, &layout);
  32
  33   while (objc_layout_structure_next_member (&layout))
  34     {
  35       struct objc_ivar *ivar;
  36       const char *ivar_type;
  37
  38       if (i > ivars->ivar_count)
  39         {
  40           printf ("too many ivars in type %s, layout = %s\n",
  41                   type, layout.type);
  42           exit (1);
  43         }
  44
  45       ivar = &(ivars->ivar_list[i]);
  46       objc_layout_structure_get_info (&layout, &position, NULL, &ivar_type);
  47       printf ("real ivar '%s' offset %d\n",
  48               ivar->ivar_name, ivar->ivar_offset);
  49       printf ("computed type '%s' offset %d\n", ivar_type, position);
  50       if (position != ivar->ivar_offset)
  51         {
  52           printf ("offset %d and computed position %d don't match on ivar '%s'"
  53                   " (i = %d)\n",
  54                   ivar->ivar_offset, position, ivar->ivar_name, i);
  55           exit (1);
  56         }
  57       i++;
  58     }
  59
  60   printf ("%d ivars checked\n", i);
  61 }
  62 #else
  63 void print_ivars (Class class)
  64 {
  65   unsigned int count, i;
  66   Ivar *list = class_copyIvarList (class, &count);
  67
  68   for (i = 0; i < count; i++) {
  69     printf ("ivar '%s', type '%s', offset %ud\n",
  70             ivar_getName (list[i]),
  71             ivar_getTypeEncoding (list[i]),
  72             (unsigned int)ivar_getOffset (list[i]));
  73   }
  74 }
  75
  76 void compare_structures (Class class, const char* type)
  77 {
  78   struct objc_struct_layout layout;
  79   unsigned int count;
  80   Ivar *list = class_copyIvarList (class, &count);
  81   int i = 0;
  82   int position;
  83
  84   objc_layout_structure (type, &layout);
  85
  86   while (objc_layout_structure_next_member (&layout))
  87     {
  88       const char *ivar_type;
  89
  90       if (i > count)
  91         {
  92           printf ("too many ivars in type %s, layout = %s\n",
  93                   type, layout.type);
  94           exit (1);
  95         }
  96
  97       objc_layout_structure_get_info (&layout, &position, NULL, &ivar_type);
  98       printf ("real ivar '%s' offset %ud\n",
  99               ivar_getName (list[i]), (unsigned int)ivar_getOffset (list[i]));
 100       printf ("computed type '%s' offset %d\n", ivar_type, position);
 101       if ((unsigned int)position != (unsigned int)ivar_getOffset (list[i]))
 102         {
 103           printf ("offset %ud and computed position %d don't match on ivar '%s'"
 104                   " (i = %d)\n",
 105                   (unsigned int)ivar_getOffset (list[i]), position, ivar_getName (list[i]), i);
 106           exit (1);
 107         }
 108       i++;
 109     }
 110
 111   printf ("%d ivars checked\n", i);
 112 }
 113 #endif
 114
 115 int main ()
 116 {
 117   struct class_vars
 118     {
 119       @defs (MyObject);
 120     };
 121   int size1, size2;
 122   Class class = objc_getClass ("MyObject");
 123   printf ("type = %s\n", @encode (struct class_vars));
 124   print_ivars (class);
 125
 126   compare_structures (class, @encode(struct class_vars));
 127   if ((size1 = objc_sizeof_type (@encode(struct class_vars)))
 128       != (size2 = sizeof (struct class_vars)))
 129     {
 130       printf ("sizes don't match (computed %d, exact %d)\n", size1, size2);
 131       abort ();
 132     }
 133
 134   return 0;
 135 }
 136 #include "../../objc-obj-c++-shared/objc-test-suite-next-encode-assist-impl.h"