Function performOptionalSelector

Bcore/src/main/cpp/Dobby/tests/catch.hpp:729–733

  [obj release];
}
inline id performOptionalSelector(id obj, SEL sel) {
  if ([obj respondsToSelector:sel])
    return [obj performSelector:sel];
  return nil;
}
#define CATCH_UNSAFE_UNRETAINED
#define CATCH_ARC_STRONG
#else