From: David Engster <deng@randomsample.de>
To: 9313@debbugs.gnu.org
Subject: bug#9313: 24.0.50; Emacs 24 cannot load byte-compiled code from Emacs 23.3 when using EIEIO's defmethod
Date: Wed, 17 Aug 2011 17:52:03 +0200 [thread overview]
Message-ID: <87wreckpcs.fsf@engster.org> (raw)
This is a very late followup to an older message from emacs-devel,
regarding the issue that Emacs24 after the lexbind merge cannot run
byte-compiled code from Emacs23.3 if that is using EIEIO's 'defmethod':
http://thread.gmane.org/gmane.emacs.devel/138030/focus=78338
In that message Stefan Monnier says that this is considered a bug, so
I'm writing this report. Also, this issue is popping up more frequently
now as people are migrating to Emacs24-bzr, but still have compiled Gnus
or CEDET sources with Emacs23, so I think this should be fixed before a
release.
Here's a recipe:
* Create a file ~/eieio-test/eieio-test.el with the following contents:
(require 'eieio)
(defclass someclass ()
((astring :initarg :astring
:initform ""))
"Some test class.")
(defmethod somemethod ((arg someclass))
"Some method."
(message "Somemethod called."))
(provide 'eieio-test)
* Byte-compile the file using Emacs 23.3:
emacs23 --batch -f batch-byte-compile eieio-test.el
* Load Emacs24-bzr with
emacs24 -Q -L ~/eieio-test
and evaluate
(require 'eieio-test)
* The following backtrace will appear:
Debugger entered--Lisp error: (void-function eieio-defmethod)
(eieio-defmethod (quote somemethod) (quote (((arg someclass)) #[(arg) "\300\301!\207" [message "Somemethod called."] 2 "Some method."])))
require(eieio-test)
eval((require (quote eieio-test)) nil)
* Note that the following setups work:
- Byte compile with Emacs23, require with Emacs23
- Byte compile with Emacs24, require with Emacs24
- Require uncompiled el-file.
* This issue is occuring since the lexbind merge.
Cheers,
David
next reply other threads:[~2011-08-17 15:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-17 15:52 David Engster [this message]
2011-08-22 21:47 ` bug#9313: 24.0.50; Emacs 24 cannot load byte-compiled code from Emacs 23.3 when using EIEIO's defmethod Stefan Monnier
2011-08-23 16:13 ` David Engster
2011-08-23 18:54 ` Stefan Monnier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87wreckpcs.fsf@engster.org \
--to=deng@randomsample.de \
--cc=9313@debbugs.gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).