test/property.m

   1 #include "test.h"
   2 #include <stdint.h>
   3 #include <string.h>
   4 #include <objc/objc-runtime.h>
   5
   6 @interface Super {
   7   @public
   8     id isa;
   9     char superIvar;
  10 }
  11
  12 @property(readonly) char superProp;
  13 @end
  14
  15 @implementation Super
  16 @synthesize superProp = superIvar;
  17 +(void)initialize { }
  18 +class { return self; }
  19 @end
  20
  21
  22 @interface Sub : Super {
  23   @public
  24     uintptr_t subIvar;
  25 }
  26 @property(readonly) uintptr_t subProp;
  27 @end
  28
  29 @implementation Sub
  30 @synthesize subProp = subIvar;
  31 @end
  32
  33
  34 int main()
  35 {
  36     /*
  37        Runtime layout of Sub:
  38          [0] isa
  39          [1] superIvar
  40          [2] subIvar
  41     */
  42
  43     objc_property_t prop;
  44
  45     prop = class_getProperty([Sub class], "subProp");
  46     testassert(prop);
  47
  48     prop = class_getProperty([Super class], "superProp");
  49     testassert(prop);
  50     testassert(prop == class_getProperty([Sub class], "superProp"));
  51
  52     prop = class_getProperty([Super class], "subProp");
  53     testassert(!prop);
  54
  55     prop = class_getProperty([Sub class]->isa, "subProp");
  56     testassert(!prop);
  57
  58
  59     testassert(NULL == class_getProperty(NULL, "foo"));
  60     testassert(NULL == class_getProperty([Sub class], NULL));
  61     testassert(NULL == class_getProperty(NULL, NULL));
  62
  63     succeed(__FILE__);
  64     return 0;
  65 }