Differences From Artifact [8bf9db28f4]:
- File src/runtime/class.m — part of check-in [5088c339bf] at 2016-07-02 22:26:07 on branch trunk — runtime: Add objc_{allocate,register}ClassPair (user: js, size: 19505) [annotate] [blame] [check-ins using]
To Artifact [c8cb26401f]:
- File
src/runtime/class.m
— part of check-in
[d4cae4c963]
at
2016-07-03 11:24:15
on branch trunk
— runtime: Add class_addMethod()
Also moves out some stuff to functions to be reusable by
class_addMethod(). (user: js, size: 19328) [annotate] [blame] [check-ins using]
| ︙ | ︙ | |||
663 664 665 666 667 668 669 670 671 672 |
if (cls == Nil)
return NULL;
dummy.isa = cls;
return objc_msg_lookup_stret((id)&dummy, sel);
}
const char*
class_getMethodTypeEncoding(Class cls, SEL sel)
{
| > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | < < < < < < < < < < | < < < < < < < | < | | < < < < > > > > > > > > > > > > > > > > > > | < | < < | < | | < < < < < < < < < < < < | < < < < < < | | < < | < < < < < < < < < < < < < < < < < < < < < < | | 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 |
if (cls == Nil)
return NULL;
dummy.isa = cls;
return objc_msg_lookup_stret((id)&dummy, sel);
}
static struct objc_method*
get_method(Class cls, SEL sel)
{
struct objc_method_list *ml;
struct objc_category **cats;
for (ml = cls->methodlist; ml != NULL; ml = ml->next)
for (unsigned int i = 0; i < ml->count; i++)
if (sel_isEqual((SEL)&ml->methods[i].sel, sel))
return &ml->methods[i];
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 (unsigned int i = 0; i < ml->count; i++)
if (sel_isEqual(
(SEL)&ml->methods[i].sel, sel))
return &ml->methods[i];
}
}
return NULL;
}
static void
add_method(Class cls, SEL sel, IMP imp, const char *types)
{
struct objc_method_list *ml;
/* FIXME: We need a way to free this at objc_exit() */
if ((ml = malloc(sizeof(struct objc_method_list))) == NULL)
OBJC_ERROR("Not enough memory to replace method!");
ml->next = cls->methodlist;
ml->count = 1;
ml->methods[0].sel.uid = sel->uid;
ml->methods[0].sel.types = types;
ml->methods[0].imp = imp;
cls->methodlist = ml;
objc_update_dtable(cls);
}
const char*
class_getMethodTypeEncoding(Class cls, SEL sel)
{
struct objc_method *method;
if (cls == Nil)
return NULL;
objc_global_mutex_lock();
if ((method = get_method(cls, sel)) != NULL) {
const char *ret = method->sel.types;
objc_global_mutex_unlock();
return ret;
}
objc_global_mutex_unlock();
if (cls->superclass != Nil)
return class_getMethodTypeEncoding(cls->superclass, sel);
return NULL;
}
bool
class_addMethod(Class cls, SEL sel, IMP imp, const char *types)
{
bool ret;
objc_global_mutex_lock();
if (get_method(cls, sel) == NULL) {
add_method(cls, sel, imp, types);
ret = true;
} else
ret = false;
objc_global_mutex_unlock();
return ret;
}
IMP
class_replaceMethod(Class cls, SEL sel, IMP newimp, const char *types)
{
struct objc_method *method;
IMP oldimp;
objc_global_mutex_lock();
if ((method = get_method(cls, sel)) != NULL) {
oldimp = method->imp;
method->imp = newimp;
objc_update_dtable(cls);
} else {
oldimp = NULL;
add_method(cls, sel, newimp, types);
}
objc_global_mutex_unlock();
return oldimp;
}
Class
object_getClass(id obj_)
{
struct objc_object *obj;
|
| ︙ | ︙ |