test/xref.m

   1 // TEST_CFLAGS
   2
   3 #include <Foundation/NSObject.h>
   4 #include <objc/runtime.h>
   5 #include <objc/objc-internal.h>
   6
   7 #include "test.h"
   8
   9 int main()
  10 {
  11     // rdar://8350188 External references (handles)
  12
  13     id object = [NSObject new];
  14     testassert(object);
  15
  16     // STRONG
  17     objc_xref_t xref = _object_addExternalReference(object, OBJC_XREF_STRONG);
  18     testassert(xref);
  19     testassert(_object_readExternalReference(xref) == object);
  20     _object_removeExternalReference(xref);
  21     // TODO: expect a crash if a stale xref is used.
  22
  23     // WEAK
  24     xref = _object_addExternalReference(object, OBJC_XREF_WEAK);
  25     testassert(xref);
  26     testassert(_object_readExternalReference(xref) == object);
  27     _object_removeExternalReference(xref);
  28
  29     RELEASE_VAR(object);
  30
  31     succeed(__FILE__);
  32 }