mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/* GNU Objective C Runtime class related functions
|
|
Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc.
|
|
Contributed by Kresten Krab Thorup
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC is free software; you can redistribute it and/or modify it under the
|
|
terms of the GNU General Public License as published by the Free Software
|
|
Foundation; either version 2, or (at your option) any later version.
|
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
|
details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
GCC; see the file COPYING. If not, write to the Free Software
|
|
Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
/* As a special exception, if you link this library with files compiled with
|
|
GCC to produce an executable, this does not cause the resulting executable
|
|
to be covered by the GNU General Public License. This exception does not
|
|
however invalidate any other reasons why the executable file might be
|
|
covered by the GNU General Public License. */
|
|
|
|
#include "tconfig.h" /* include defs of bzero for target */
|
|
#include "objc.h"
|
|
#include "runtime.h" /* the kitchen sink */
|
|
|
|
#if OBJC_WITH_GC
|
|
# include <gc.h>
|
|
#endif
|
|
|
|
id __objc_object_alloc (Class);
|
|
id __objc_object_dispose (id);
|
|
id __objc_object_copy (id);
|
|
|
|
id (*_objc_object_alloc) (Class) = __objc_object_alloc; /* !T:SINGLE */
|
|
id (*_objc_object_dispose) (id) = __objc_object_dispose; /* !T:SINGLE */
|
|
id (*_objc_object_copy) (id) = __objc_object_copy; /* !T:SINGLE */
|
|
|
|
id
|
|
class_create_instance (Class class)
|
|
{
|
|
id new = nil;
|
|
|
|
#if OBJC_WITH_GC
|
|
if (CLS_ISCLASS (class))
|
|
new = (id) GC_malloc_explicitly_typed (class->instance_size,
|
|
class->gc_object_type);
|
|
#else
|
|
if (CLS_ISCLASS (class))
|
|
new = (*_objc_object_alloc) (class);
|
|
#endif
|
|
|
|
if (new != nil)
|
|
{
|
|
memset (new, 0, class->instance_size);
|
|
new->class_pointer = class;
|
|
}
|
|
return new;
|
|
}
|
|
|
|
id
|
|
object_copy (id object)
|
|
{
|
|
if ((object != nil) && CLS_ISCLASS (object->class_pointer))
|
|
return (*_objc_object_copy) (object);
|
|
else
|
|
return nil;
|
|
}
|
|
|
|
id
|
|
object_dispose (id object)
|
|
{
|
|
if ((object != nil) && CLS_ISCLASS (object->class_pointer))
|
|
{
|
|
if (_objc_object_dispose)
|
|
(*_objc_object_dispose) (object);
|
|
else
|
|
objc_free (object);
|
|
}
|
|
return nil;
|
|
}
|
|
|
|
id __objc_object_alloc (Class class)
|
|
{
|
|
return (id) objc_malloc (class->instance_size);
|
|
}
|
|
|
|
id __objc_object_dispose (id object)
|
|
{
|
|
objc_free (object);
|
|
return 0;
|
|
}
|
|
|
|
id __objc_object_copy (id object)
|
|
{
|
|
id copy = class_create_instance (object->class_pointer);
|
|
memcpy (copy, object, object->class_pointer->instance_size);
|
|
return copy;
|
|
}
|