test/setSuper.m

   1 #include "test.h"
   2 #include <objc/runtime.h>
   3
   4 @interface Super1 { id isa; } @end
   5 @implementation Super1
   6 +class { return self; }
   7 +(void)initialize { }
   8 +(int)classMethod { return 1; }
   9 -(int)instanceMethod { return 10000; }
  10 @end
  11
  12 @interface Super2 { id isa; } @end
  13 @implementation Super2
  14 +class { return self; }
  15 +(void)initialize { }
  16 +(int)classMethod { return 2; }
  17 -(int)instanceMethod { return 20000; }
  18 @end
  19
  20 @interface Sub : Super1 @end
  21 @implementation Sub
  22 +new { return class_createInstance(self, 0); }
  23 +(int)classMethod { return [super classMethod] + 100; }
  24 -(int)instanceMethod { return [super instanceMethod] + 1000000; }
  25 @end
  26
  27 int main()
  28 {
  29     Class cls;
  30     Sub *obj = [Sub new];
  31
  32     testassert(101 == [[Sub class] classMethod]);
  33     testassert(1010000 == [obj instanceMethod]);
  34
  35     cls = class_setSuperclass([Sub class], [Super2 class]);
  36
  37     testassert(cls == [Super1 class]);
  38     testassert(cls->isa == [Super1 class]->isa);
  39
  40     testassert(102 == [[Sub class] classMethod]);
  41     testassert(1020000 == [obj instanceMethod]);
  42
  43     succeed(__FILE__);
  44 }