ObjFW  Check-in [2e39765aa2]

	objc_global_mutex_unlock();

	return NULL;
}

IMP
objc_replace_class_method(Class cls, SEL sel, IMP newimp)
class_replaceMethod(Class cls, SEL sel, IMP newimp, const char *types)
{
	struct objc_method_list *ml;
	struct objc_category **cats;
	unsigned int i;
	BOOL replaced = NO;
	IMP oldimp = NULL;
	IMP oldimp;

	objc_global_mutex_lock();

	for (ml = cls->isa->methodlist; ml != NULL; ml = ml->next) {
	for (ml = cls->methodlist; ml != NULL; ml = ml->next) {
		for (i = 0; i < ml->count; i++) {
			if (ml->methods[i].sel.uid == sel->uid) {
				oldimp = ml->methods[i].imp;
				ml->methods[i].imp = newimp;
				replaced = YES;
				break;
			}

		}
	}

	if ((cats = objc_categories_for_class(cls)) != NULL) {
		for (; *cats != NULL; cats++) {
			for (ml = (*cats)->class_methods; ml != NULL;
			    ml = ml->next) {
				for (i = 0; i < ml->count; i++) {
					if (ml->methods[i].sel.uid ==
					    sel->uid) {
						oldimp = ml->methods[i].imp;
						ml->methods[i].imp = newimp;
						replaced = YES;
						break;
					}
				}
			}
		}
	}

	if (!replaced) {
		/* FIXME: We need a way to free this at objc_exit() */
		if ((ml = malloc(sizeof(struct objc_method_list))) == NULL)
			ERROR("Not enough memory to replace method!");

		ml->next = cls->isa->methodlist;
		ml->count = 1;
		ml->methods[0].sel.uid = sel->uid;
		/* FIXME: We need to get the type from a superclass */
		ml->methods[0].sel.types = sel->types;
		ml->methods[0].imp = newimp;

		cls->isa->methodlist = ml;
	}

	objc_update_dtable(cls->isa);

	objc_global_mutex_unlock();

	return oldimp;
}

IMP
objc_replace_instance_method(Class cls, SEL sel, IMP newimp)
{
	struct objc_method_list *ml;
	struct objc_category **cats;
	unsigned int i;
	BOOL replaced = NO;
	IMP oldimp = NULL;

	objc_global_mutex_lock();

	for (ml = cls->methodlist; ml != NULL; ml = ml->next) {
		for (i = 0; i < ml->count; i++) {
			if (ml->methods[i].sel.uid == sel->uid) {
				oldimp = ml->methods[i].imp;
				ml->methods[i].imp = newimp;
				objc_update_dtable(cls);
				replaced = YES;
				break;

				objc_global_mutex_unlock();

				return oldimp;
			}
		}
	}

	if ((cats = objc_categories_for_class(cls)) != NULL) {
		for (; *cats != NULL; cats++) {
			if (cls->info & OBJC_CLASS_INFO_METACLASS)
				ml = (*cats)->class_methods;
			else
			for (ml = (*cats)->instance_methods; ml != NULL;
			    ml = ml->next) {
				ml = (*cats)->instance_methods;

			for (; ml != NULL; ml = ml->next) {
				for (i = 0; i < ml->count; i++) {
					if (ml->methods[i].sel.uid ==
					    sel->uid) {
						oldimp = ml->methods[i].imp;

						ml->methods[i].imp = newimp;
						objc_update_dtable(cls);
						replaced = YES;
						break;

						objc_global_mutex_unlock();

						return oldimp;
					}
				}
			}
		}
	}

	if (!replaced) {
		/* FIXME: We need a way to free this at objc_exit() */
		if ((ml = malloc(sizeof(struct objc_method_list))) == NULL)
			ERROR("Not enough memory to replace method!");
	/* FIXME: We need a way to free this at objc_exit() */
	if ((ml = malloc(sizeof(struct objc_method_list))) == NULL)
		ERROR("Not enough memory to replace method!");

		ml->next = cls->methodlist;
		ml->count = 1;
		ml->methods[0].sel.uid = sel->uid;
	ml->next = cls->isa->methodlist;
	ml->count = 1;
	ml->methods[0].sel.uid = sel->uid;
		/* FIXME: We need to get the type from a superclass */
		ml->methods[0].sel.types = sel->types;
		ml->methods[0].imp = newimp;
	ml->methods[0].sel.types = types;
	ml->methods[0].imp = newimp;

		cls->methodlist = ml;
	cls->isa->methodlist = ml;
	}

	objc_update_dtable(cls);

	objc_global_mutex_unlock();

	return oldimp;
	return (IMP)nil;
}

static void
free_class(Class rcls)
{
	struct objc_abi_class *cls = (struct objc_abi_class*)rcls;

extern Class class_getSuperclass(Class);
extern BOOL class_isKindOfClass(Class, Class);
extern unsigned long class_getInstanceSize(Class);
extern BOOL class_respondsToSelector(Class, SEL);
extern BOOL class_conformsToProtocol(Class, Protocol*);
extern IMP objc_get_class_method(Class, SEL);
extern IMP objc_get_instance_method(Class, SEL);
extern IMP objc_replace_class_method(Class, SEL, IMP);
extern IMP class_replaceMethod(Class, SEL, IMP, const char*);
extern IMP objc_replace_instance_method(Class, SEL, IMP);
extern const char* objc_get_type_encoding(Class, SEL);
extern IMP objc_msg_lookup(id, SEL);
extern void objc_thread_add(void);
extern void objc_thread_remove(void);
extern void objc_exit(void);
#endif