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;;; serial.lisp --- serialisation of CLOS objects
;;; Copyright (C) 2009 by Walter C. Pelissero
;;; Author: Walter C. Pelissero <walter@pelissero.de>
;;; Project: sclf
#+cmu (ext:file-comment "$Module: serial.lisp $")
;;; This library is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU Lesser General Public License
;;; as published by the Free Software Foundation; either version 2.1
;;; of the License, or (at your option) any later version.
;;; This library 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
;;; Lesser General Public License for more details.
;;; You should have received a copy of the GNU Lesser General Public
;;; License along with this library; if not, write to the Free
;;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
;;; 02111-1307 USA
(in-package :sclf)
(defclass printable-object-mixin () ())
(defmacro reconstruct-object (class &rest args)
`(apply #'make-instance ',class ',args))
(defun print-readable-instance (object &optional stream)
(unless stream
(setf stream *standard-output*))
(be class (class-of object)
(pprint-logical-block (stream (copy-list (class-slots class)) :prefix "#.(" :suffix ")")
(flet ((spc ()
(write-char #\space stream)))
(write 'reconstruct-object :stream stream)
(spc)
(write (class-name class) :stream stream :escape t :readably t :pretty t)
(pprint-exit-if-list-exhausted)
(spc)
(loop
(be* slot (pprint-pop)
slot-name (slot-definition-name slot)
initarg (car (slot-definition-initargs slot))
(when (and initarg
(slot-boundp object slot-name))
(write initarg :stream stream)
(spc)
(when *print-pretty*
(pprint-newline :miser stream))
(write (slot-value object slot-name)
:stream stream)
(pprint-exit-if-list-exhausted)
(if *print-pretty*
(pprint-newline :linear stream)
(spc)))))))))
(defmethod print-object ((object printable-object-mixin) stream)
(if *print-readably*
(print-readable-instance object stream)
(call-next-method)))
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