/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013
* 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 cxx_construct = NULL;
static SEL cxx_destruct = NULL;
static BOOL
call_ctors(Class cls, id obj)
{
Class super = class_getSuperclass(cls);
id (*ctor)(id, SEL);
id (*last)(id, SEL);
if (super != nil)
if (!call_ctors(super, obj))
return NO;
if (cxx_construct == NULL)
cxx_construct = sel_registerName(".cxx_construct");
if (!class_respondsToSelector(cls, cxx_construct))
return YES;
ctor = (id(*)(id, SEL))
class_getMethodImplementation(cls, cxx_construct);
last = (id(*)(id, SEL))
class_getMethodImplementation(super, cxx_construct);
if (ctor == last)
return YES;
return (ctor(obj, cxx_construct) != nil ? YES : NO);
}
id
objc_constructInstance(Class cls, void *bytes)
{
id obj = (id)bytes;
if (cls == Nil || bytes == NULL)
return nil;
object_setClass(obj, cls);
if (!call_ctors(cls, obj))
return nil;
return obj;
}
void*
objc_destructInstance(id obj)
{
Class cls;
void (*last)(id, SEL) = NULL;
if (cxx_destruct == NULL)
cxx_destruct = sel_registerName(".cxx_destruct");
for (cls = object_getClass(obj); cls != Nil;
cls = class_getSuperclass(cls)) {
void (*dtor)(id, SEL);
if (class_respondsToSelector(cls, cxx_destruct)) {
if ((dtor = (void(*)(id, SEL))
class_getMethodImplementation(cls,
cxx_destruct)) != last)
dtor(obj, cxx_destruct);
last = dtor;
} else
break;
}
return obj;
}