/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
* 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"
#import "OFObject.h"
static SEL constructSel = NULL;
static SEL destructSel = NULL;
static bool
callConstructors(Class cls, id obj)
{
Class super = class_getSuperclass(cls);
id (*construct)(id, SEL);
id (*last)(id, SEL);
if (super != nil)
if (!callConstructors(super, obj))
return false;
if (constructSel == NULL)
constructSel = sel_registerName(".cxx_construct");
if (!class_respondsToSelector(cls, constructSel))
return true;
construct = (id(*)(id, SEL))
class_getMethodImplementation(cls, constructSel);
last = (id(*)(id, SEL))
class_getMethodImplementation(super, constructSel);
if (construct == last)
return true;
return (construct(obj, constructSel) != nil);
}
id
objc_constructInstance(Class cls, void *bytes)
{
id obj = (id)bytes;
if (cls == Nil || bytes == NULL)
return nil;
object_setClass(obj, cls);
if (!callConstructors(cls, obj))
return nil;
return obj;
}
void*
objc_destructInstance(id obj)
{
Class cls;
void (*last)(id, SEL) = NULL;
if (destructSel == NULL)
destructSel = sel_registerName(".cxx_destruct");
for (cls = object_getClass(obj); cls != Nil;
cls = class_getSuperclass(cls)) {
void (*destruct)(id, SEL);
if (class_respondsToSelector(cls, destructSel)) {
if ((destruct = (void(*)(id, SEL))
class_getMethodImplementation(cls,
destructSel)) != last)
destruct(obj, destructSel);
last = destruct;
} else
break;
}
return obj;
}