From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?=C3=93scar_Fuentes?= Newsgroups: gmane.emacs.help Subject: Re: Undo defalias Date: Tue, 28 Feb 2023 16:56:31 +0100 Message-ID: <871qm9okb4.fsf@telefonica.net> References: <878rgioa5f.fsf@telefonica.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8132"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:ZIFAzR3P1ZOHkn9ZNIyjZVBrFJk= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Feb 28 16:57:33 2023 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pX2M9-0001rj-3o for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 28 Feb 2023 16:57:33 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pX2LR-00051o-KV; Tue, 28 Feb 2023 10:56:49 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pX2LP-00051Z-Ux for help-gnu-emacs@gnu.org; Tue, 28 Feb 2023 10:56:47 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pX2LL-0006lh-3N for help-gnu-emacs@gnu.org; Tue, 28 Feb 2023 10:56:47 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1pX2LH-0000aZ-0X for help-gnu-emacs@gnu.org; Tue, 28 Feb 2023 16:56:39 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:142882 Archived-At: Gregory Heytings writes: >> >> Somehow `message' ended aliased to `ignore': >> >> C-h f message >> >> message is an alias for ‘ignore’. >> ... >> >> To repair this damage (without restarting Emacs) usually I would go >> to the definition of `message' and evaluate it, but this function is >> defined in C. >> >> How could I bind back `message' to its original function definition? >> > > (defmacro undefalias (symbol) > `(progn > (fset ,symbol (cadr (get ,symbol 'function-history))) > (put ,symbol 'function-history (cddr (get ,symbol 'function-history))))) Thank you. It didn't work on the affected Emacs session ( (message "foo) throwed "Symbol’s function definition is void: message"), most likely because of my previous attempts of fixing it, but it works on emacs -Q.