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objc_global_mutex_unlock();
return NULL;
}
IMP
objc_replace_class_method(Class cls, SEL sel, IMP newimp)
BOOL replaced = NO;
IMP oldimp = NULL;
for (ml = cls->isa->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;
replaced = YES;
break;
for (ml = (*cats)->instance_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->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->methodlist = ml;
}
objc_update_dtable(cls);
objc_global_mutex_unlock();
return oldimp;
}
static void
free_class(Class rcls)
{
struct objc_abi_class *cls = (struct objc_abi_class*)rcls;
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objc_global_mutex_unlock();
return NULL;
}
IMP
class_replaceMethod(Class cls, SEL sel, IMP newimp, const char *types)
{
struct objc_method_list *ml;
struct objc_category **cats;
unsigned int i;
IMP oldimp;
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);
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
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);
objc_global_mutex_unlock();
return oldimp;
}
}
}
}
}
/* 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;
ml->methods[0].sel.types = types;
ml->methods[0].imp = newimp;
cls->isa->methodlist = ml;
objc_update_dtable(cls);
objc_global_mutex_unlock();
return (IMP)nil;
}
static void
free_class(Class rcls)
{
struct objc_abi_class *cls = (struct objc_abi_class*)rcls;
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