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9e44cc662c
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@1241 72102866-910b-0410-8b05-ffd578937521
95 lines
2.7 KiB
Objective-C
95 lines
2.7 KiB
Objective-C
/* Callbacks for the Objective-C object type. */
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/* Copyright (C) 1996 Free Software Foundation, Inc. */
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/* Author: Albin L. Jones <Albin.L.Jones@Dartmouth.EDU>
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* Created: Sat Feb 10 15:55:51 EST 1996
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* Updated: Sun Feb 11 01:42:20 EST 1996
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* Serial: 96.02.11.05
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*
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* This file is part of the GNU Objective C Class Library.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/**** Included Headers *******************************************************/
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#include <stdlib.h>
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#include <Foundation/NSObject.h>
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#include <Foundation/NSString.h>
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#include <objects/callbacks.h>
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/**** Type, Constant, and Macro Definitions **********************************/
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/* FIXME: Is this right?!? */
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#define _OBJECTS_NOT_AN_ID_MARKER (const void *)(-1)
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const void *objects_not_an_id_marker = _OBJECTS_NOT_AN_ID_MARKER;
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objects_callbacks_t objects_callbacks_for_id =
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{
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(objects_hash_func_t) objects_id_hash,
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(objects_compare_func_t) objects_id_compare,
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(objects_is_equal_func_t) objects_id_is_equal,
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(objects_retain_func_t) objects_id_retain,
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(objects_release_func_t) objects_id_release,
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(objects_describe_func_t) objects_id_describe,
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_OBJECTS_NOT_AN_ID_MARKER
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};
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/**** Function Implementations ***********************************************/
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/* FIXME: It sure would be nice if we had a way of checking whether
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* or not these objects responded to the messages we're sending them here.
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* We need a way that is independent of whether we have GNUStep objects,
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* NEXTSTEP objects, or GNU objects. We could certainly just use the
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* same trick that the `respondsToSelector:' method itself uses, but I'd hoped
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* that there was already a built-in call to do this sort of thing. */
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size_t
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objects_id_hash(id obj)
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{
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return (size_t)[obj hash];
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}
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int
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objects_id_compare(id obj, id jbo)
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{
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return (int)[obj compare:jbo];
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}
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int
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objects_id_is_equal(id obj, id jbo)
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{
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return (int)[obj isEqual:jbo];
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}
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const void *
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objects_id_retain(id obj)
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{
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return (const void *)[obj retain];
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}
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void
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objects_id_release(id obj)
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{
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[obj release];
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return;
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}
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NSString *
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objects_id_describe(id obj)
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{
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return [obj description];
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}
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