source: trunk/j/src/org/armedbear/lisp/make-load-form-saving-slots.lisp @ 11297

Last change on this file since 11297 was 11297, checked in by ehuelsmann, 13 years ago

Set Id keyword for expansion.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 2.1 KB
Line 
1;;; make-load-form-saving-slots.lisp
2;;;
3;;; Copyright (C) 2004-2005 Peter Graves
4;;; $Id: make-load-form-saving-slots.lisp 11297 2008-08-31 13:26:45Z ehuelsmann $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19
20(in-package #:system)
21
22(resolve 'defstruct)
23
24(defun make-load-form-saving-slots (object &key slot-names environment)
25  (declare (ignore environment))
26  (let ((class (class-of object))
27        (inits ())
28        (instance (gensym "INSTANCE-")))
29    (cond ((typep object 'structure-object)
30           (let ((index 0))
31             (dolist (slot (%class-slots class))
32               (let ((slot-name (dsd-name slot)))
33                 (when (or (memq slot-name slot-names)
34                           (null slot-names))
35                   (let ((value (structure-ref object index)))
36                     (push `(structure-set ,instance ,index ',value) inits))))
37               (incf index))))
38          ((typep object 'standard-object)
39           (dolist (slot (%class-slots class))
40             (let ((slot-name (%slot-definition-name slot)))
41               (when (or (memq slot-name slot-names)
42                         (null slot-names))
43                 (when (slot-boundp object slot-name)
44                   (let ((value (slot-value object slot-name)))
45                     (push `(setf (slot-value ,instance ',slot-name) ',value) inits))))))))
46    (values `(let ((,instance (allocate-instance (find-class ',(%class-name class)))))
47               (progn ,@inits)
48               ,instance)
49            nil)))
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