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From: Jambunathan K <kjambunathan@gmail.com>
To: emacs-devel@gnu.org
Cc: emacs-orgmode@gnu.org, Nicolas Goaziou <n.goaziou@gmail.com>
Subject: (Emacs 23/24 binary compatibility): defstruct, setf
Date: Tue, 03 Sep 2013 14:12:48 +0530	[thread overview]
Message-ID: <87wqmyi9dj.fsf@gmail.com> (raw)


1. Compile ox.el (new-to-be-merged export library) with Emacs 23.2.1
   (stock Debian binary)

2. Load the ox.elc file on Emacs Bzr trunk.

3. setf on a defstruct field breaks as seen below.

Modify (1) so that .elc files are generated against Emacs Bzr trunk.
Note that setf succeeds.

----------------------------------------------------------------

I think existing *.elc files compiled against Emacs-23.2.1 should load
fine on new Emacs versions.


----------------------------------------------------------------

The struct is as below defined in ox.el

    (defstruct (org-export-backend
                (:constructor org-export-create-backend))
      name parent transcoders options filters blocks menu)


ox-jabref.el is loaded uncompiled.

----------------------------------------------------------------


Debugger entered--Lisp error: (error "(org-export-backend-transcoders enhanced-backend) is not a valid place expression")
  signal(error ("(org-export-backend-transcoders enhanced-backend) is not a valid place expression"))
  error("%S is not a valid place expression" (org-export-backend-transcoders enhanced-backend))
  gv-get((org-export-backend-transcoders enhanced-backend) #[514 "\211\300!\207" [enhanced-transcoders] 4 "\n\n(fn GETTER SETTER)"])
  #[128 "\211\203&\211\211AA\262\204&\211A\262@@\300\301\302\303\304\305\a!\306\"\307\310%\"\207\311\203@\312\211A\262@\211A\262@EB\262\202'\313\237B\207" [gv-get make-byte-code 514 "\211\300!\207" vconcat vector [] 4 "\n\n(fn GETTER SETTER)" nil setf progn] 11 ("/home/kjambunathan/src/emacs/trunk/lisp/emacs-lisp/gv.elc" . 6424)]((org-export-backend-transcoders enhanced-backend) enhanced-transcoders)
  (setf (org-export-backend-transcoders enhanced-backend) enhanced-transcoders)
  (let* ((enhanced-backend (copy-org-export-backend org-jabref--stock-odt-backend)) (stock-transcoders (org-export-backend-transcoders org-jabref--stock-odt-backend)) (enhanced-transcoders (append (quote ((keyword . org-jabref-keyword) (citation-reference . org-jabref-odt-citation-reference/text))) stock-transcoders))) (setf (org-export-backend-transcoders enhanced-backend) enhanced-transcoders) (let ((menu (org-export-backend-menu enhanced-backend))) (setf (cadr menu) (concat (cadr menu) " (With Jabref Processing)"))) (org-export-register-backend enhanced-backend) enhanced-backend)
  (defvar org-jabref--enhanced-odt-backend (let* ((enhanced-backend (copy-org-export-backend org-jabref--stock-odt-backend)) (stock-transcoders (org-export-backend-transcoders org-jabref--stock-odt-backend)) (enhanced-transcoders (append (quote ((keyword . org-jabref-keyword) (citation-reference . org-jabref-odt-citation-reference/text))) stock-transcoders))) (setf (org-export-backend-transcoders enhanced-backend) enhanced-transcoders) (let ((menu (org-export-backend-menu enhanced-backend))) (setf (cadr menu) (concat (cadr menu) " (With Jabref Processing)"))) (org-export-register-backend enhanced-backend) enhanced-backend))
  eval-buffer(#<buffer  *load*> nil "/home/kjambunathan/src/org-mode/contrib/lisp/ox-jabref.el" nil t)  ; Reading at buffer position 6948
  load-with-code-conversion("/home/kjambunathan/src/org-mode/contrib/lisp/ox-jabref.el" "/home/kjambunathan/src/org-mode/contrib/lisp/ox-jabref.el" nil nil)
  load("ox-jabref.el")
  load-library("ox-jabref.el")
  call-interactively(load-library record nil)
  command-execute(load-library record)
  execute-extended-command(nil "load-library")
  call-interactively(execute-extended-command nil nil)
  command-execute(execute-extended-command)

             reply	other threads:[~2013-09-03  8:42 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-03  8:42 Jambunathan K [this message]
2013-09-03 19:06 ` (Emacs 23/24 binary compatibility): defstruct, setf Stefan Monnier
2013-09-03 21:14   ` Jambunathan K
2013-09-04  2:57     ` Stefan Monnier
2013-09-04  4:01       ` Jambunathan K
2013-09-04 20:04         ` Stefan Monnier

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