From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: Redefining functions and variables Date: Tue, 27 Jul 2010 22:21:17 +0200 Organization: A noiseless patient Spider Message-ID: References: <68e690c9-aece-461d-afe9-ca9115ceaee5@m1g2000vbh.googlegroups.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1291853130 18049 80.91.229.12 (9 Dec 2010 00:05:30 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 9 Dec 2010 00:05:30 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Dec 09 01:05:23 2010 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1PQU0d-0002wq-Qd for geh-help-gnu-emacs@m.gmane.org; Thu, 09 Dec 2010 01:05:19 +0100 Original-Received: from localhost ([127.0.0.1]:59350 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PQU0d-0004A1-82 for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Dec 2010 19:05:19 -0500 Original-Path: usenet.stanford.edu!news.glorb.com!news2.glorb.com!feeder.erje.net!eternal-september.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 22 Injection-Date: Tue, 27 Jul 2010 20:21:18 +0000 (UTC) Injection-Info: mx01.eternal-september.org; posting-host="q8gLPzp46U2R+2DD9zVgGw"; logging-data="26572"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+n9bA482p2SFPAB8t/LmXN" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:AtRFWsj7PhuXOTxZTGsraD2xXT0= sha1:ubQg6Rd4u4TcBr3yRtIQ/eKYfOw= Original-Xref: usenet.stanford.edu gnu.emacs.help:180122 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:76265 Archived-At: > I've noticed that some user contributed packages redefine standard > functions or variables. That's usually a bad idea. The better way to do it is via defadvice, which lets you do it in a way that keeps track of the presence of such a change and knows how to combine multiple such changes. > I wonder whether there is a way to catch such redefinitions whenever > they happen (which also would help when accidentally redefining > something) Not sure what you mean by that. I guess that means "no". > Moreover, I wonder whether redefining a function by means of "defun" > gets same results as assigning a new function to a symbol using > "fset". Mostly, yes. But defun keeps track of the file where the defun happened (for things like C-h f), whereas fset doesn't do any such thing. Stefan