BOOL
class_addProtocol (Class class_, Protocol *protocol)
{
struct objc_protocol_list *protocols;
if (class_ == Nil || protocol == NULL)
return NO;
if (class_conformsToProtocol (class_, protocol))
return NO;
/* Check that it is a Protocol object before casting it to (struct
objc_protocol *). */
if (protocol->class_pointer != objc_lookUpClass ("Protocol"))
return NO;
objc_mutex_lock (__objc_runtime_mutex);
/* Create the objc_protocol_list. */
protocols = malloc (sizeof (struct objc_protocol_list));
protocols->count = 1;
protocols->list[0] = (struct objc_protocol *)protocol;
/* Attach it to the list of class protocols. */
protocols->next = class_->protocols;
class_->protocols = protocols;
objc_mutex_unlock (__objc_runtime_mutex);
return YES;
}
BOOL class_addProtocol(Class cls, Protocol *protocol)
{
CHECK_ARG(cls);
CHECK_ARG(protocol);
if (class_conformsToProtocol(cls, protocol)) { return NO; }
struct objc_protocol_list *protocols =
malloc(sizeof(struct objc_protocol_list) + sizeof(Protocol2*));
if (protocols == NULL) { return NO; }
protocols->next = cls->protocols;
protocols->count = 1;
protocols->list[0] = (Protocol2*)protocol;
cls->protocols = protocols;
return YES;
}
