/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#import "runtime.h"
#import "runtime-private.h"
#import "macros.h"
static IMP not_found_handler(id, SEL);
IMP (*objc_forward_handler)(id, SEL) = not_found_handler;
static IMP
not_found_handler(id obj, SEL sel)
{
ERROR("Selector %s is not implemented for class %s!",
sel_getName(sel), obj->isa->name);
}
BOOL
class_respondsToSelector(Class cls, SEL sel)
{
if (cls == Nil)
return NO;
return (objc_sparsearray_get(cls->dtable, sel->uid) != NULL ? YES : NO);
}
#if !defined(__ELF__) || (!defined(OF_X86_ASM) && !defined(OF_AMD64_ASM))
static id
nil_method(id self, SEL _cmd)
{
return nil;
}
IMP
objc_msg_lookup(id obj, SEL sel)
{
IMP imp;
if (obj == nil)
return (IMP)nil_method;
if ((imp = objc_sparsearray_get(obj->isa->dtable, sel->uid)) == NULL)
return objc_forward_handler(obj, sel);
return imp;
}
IMP
objc_msg_lookup_super(struct objc_abi_super *super, SEL sel)
{
IMP imp;
if (super->self == nil)
return (IMP)nil_method;
imp = objc_sparsearray_get(super->class->dtable, sel->uid);
if (imp == NULL)
return objc_forward_handler(super->self, sel);
return imp;
}
#endif