From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: goto-line-history should not be buffer local. Date: Tue, 16 Feb 2021 17:56:09 -0500 Message-ID: References: <87im6ugsdq.fsf@telefonica.net> <875z2s3s9b.fsf@mail.linkov.net> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17717"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Richard Copley , martin rudalics , =?windows-1252?Q?=D3scar?= Fuentes , Emacs Development , Juri Linkov To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Feb 16 23:57:32 2021 Return-path: Envelope-to: ged-emacs-devel@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 1lC9Hg-0004WA-BO for ged-emacs-devel@m.gmane-mx.org; Tue, 16 Feb 2021 23:57:32 +0100 Original-Received: from localhost ([::1]:49726 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lC9Hf-0003Ul-Dn for ged-emacs-devel@m.gmane-mx.org; Tue, 16 Feb 2021 17:57:31 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42124) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lC9GR-000284-V4 for emacs-devel@gnu.org; Tue, 16 Feb 2021 17:56:16 -0500 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:21306) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lC9GP-000651-5v for emacs-devel@gnu.org; Tue, 16 Feb 2021 17:56:15 -0500 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 1B4A180801; Tue, 16 Feb 2021 17:56:12 -0500 (EST) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 79C2280ECE; Tue, 16 Feb 2021 17:56:10 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1613516170; bh=mREt2CzV+q2C90VTt9bsGpSrMNPsua20CBBpE+u4yQ0=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=D/YuIMQzSCLxp3ZP7NoZN3UJF+a5D9SPm10NPTYiTOGEemgb1jW3bifMjqp2nmsDx FEMMxNDLURI9fjYR5y4N3roFA4z24MXz1191u/I1YDGDcKxCPqSpjUD3ynweLSzkr8 NXyRHu9Fom0IfTkA5tA9ZN5lAqpDdVkWDxValktMrtxUeVwODx2XGC+3utay6kudfV 469yZFvfo639WgaSToXPWFKukOmzobhImPvS1O41gCLQVLhMitFIDoJfs9qUAe7sbd /jA3SjOmBwqn9EudYaMLlqKwgd0u4mVRW+etG998LpASpeNrCD/Nc4Qn/+34I24Yr3 YohaXxutQB7Dg== Original-Received: from alfajor (unknown [216.154.41.47]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 2A765120257; Tue, 16 Feb 2021 17:56:10 -0500 (EST) In-Reply-To: (Alan Mackenzie's message of "Tue, 16 Feb 2021 20:57:53 +0000") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:264954 Archived-At: > The point about the approach I've taken is that once a variable has > undergone make-variable-buffer-local, it cannot be changed back to a > non-local variable, except by restarting Emacs. In some cases, you can unintern the symbol, but yes, it's basically impossible :-( > (I'm not sure whether or not this is a design bug) I think it's just a feature noone bothered to implement. I don't think it would require any change to the existing code. Stefan