Differences From Artifact [584f60ba59]:
- File
src/runtime/lookup.m
— part of check-in
[dcf845546a]
at
2012-05-09 13:55:09
on branch runtime
— Initialize classes on the first dispatch.
This is no longer done in objc_msg_lookup() and thus allows direct class
references. (user: js, size: 2432) [annotate] [blame] [check-ins using] [more...]
To Artifact [34d39a737b]:
- File src/runtime/lookup.m — part of check-in [8892ae9fcc] at 2012-07-12 01:28:46 on branch trunk — Don't access isa directly. (user: js, size: 2501) [annotate] [blame] [check-ins using]
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#import "macros.h"
IMP (*objc_forward_handler)(id, SEL) = NULL;
IMP
objc_not_found_handler(id obj, SEL sel)
{
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#import "macros.h"
IMP (*objc_forward_handler)(id, SEL) = NULL;
IMP
objc_not_found_handler(id obj, SEL sel)
{
if (!(object_getClass(obj)->info & OBJC_CLASS_INFO_INITIALIZED)) {
BOOL is_class =
object_getClass(obj)->info & OBJC_CLASS_INFO_METACLASS;
Class cls = (is_class ? (Class)obj : object_getClass(obj));
objc_initialize_class(cls);
if (!(cls->info & OBJC_CLASS_INFO_SETUP)) {
if (is_class)
return objc_msg_lookup(nil, sel);
else
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return objc_msg_lookup(obj, sel);
}
if (objc_forward_handler != NULL)
return objc_forward_handler(obj, sel);
ERROR("Selector %s is not implemented for class %s!",
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return objc_msg_lookup(obj, sel);
}
if (objc_forward_handler != NULL)
return objc_forward_handler(obj, sel);
ERROR("Selector %s is not implemented for class %s!",
sel_getName(sel), object_getClassName(obj));
}
BOOL
class_respondsToSelector(Class cls, SEL sel)
{
if (cls == Nil)
return NO;
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objc_msg_lookup(id obj, SEL sel)
{
IMP imp;
if (obj == nil)
return (IMP)nil_method;
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objc_msg_lookup(id obj, SEL sel)
{
IMP imp;
if (obj == nil)
return (IMP)nil_method;
imp = objc_sparsearray_get(object_getClass(obj)->dtable,
(uint32_t)sel->uid);
if (imp == NULL)
return objc_not_found_handler(obj, sel);
return imp;
}
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