test/badTagClass.m

   1 /*
   2 TEST_CRASHES
   3 TEST_RUN_OUTPUT
   4 objc\[\d+\]: tag index 7 used for two different classes \(was 0x[0-9a-fA-F]+ NSObject, now 0x[0-9a-fA-F]+ TestRoot\)
   5 CRASHED: SIG(ILL|TRAP)
   6 OR
   7 no tagged pointers
   8 OK: badTagClass.m
   9 END
  10 */
  11
  12 #include "test.h"
  13 #include "testroot.i"
  14
  15 #include <objc/objc-internal.h>
  16 #include <objc/Protocol.h>
  17
  18 #if OBJC_HAVE_TAGGED_POINTERS
  19
  20 int main()
  21 {
  22     // re-registration and nil registration allowed
  23     _objc_registerTaggedPointerClass(OBJC_TAG_7, [NSObject class]);
  24     _objc_registerTaggedPointerClass(OBJC_TAG_7, [NSObject class]);
  25     _objc_registerTaggedPointerClass(OBJC_TAG_7, nil);
  26     _objc_registerTaggedPointerClass(OBJC_TAG_7, [NSObject class]);
  27
  28     // colliding registration disallowed
  29     _objc_registerTaggedPointerClass(OBJC_TAG_7, [TestRoot class]);
  30
  31     fail(__FILE__);
  32 }
  33
  34 #else
  35
  36 int main()
  37 {
  38     fprintf(stderr, "no tagged pointers\n");
  39     succeed(__FILE__);
  40 }
  41
  42 #endif