From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: charles@aurox.ch (Charles A. Roelli) Newsgroups: gmane.emacs.bugs Subject: bug#17893: 24.4.50; (error "Marker does not point anywhere") Date: Sat, 25 Nov 2017 15:13:08 +0100 Message-ID: References: <8facd635-be88-4990-8e7d-538db19c3e1a@default> <04af8576-c419-4d35-9c6e-7170828ac949@default> <83h8tpdkd4.fsf@gnu.org> <83o9nwd77g.fsf@gnu.org> <83shd38l86.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1511619138 9299 195.159.176.226 (25 Nov 2017 14:12:18 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 25 Nov 2017 14:12:18 +0000 (UTC) Cc: 17893@debbugs.gnu.org, monnier@IRO.UMontreal.CA To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Nov 25 15:12:12 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eIbBi-0001iy-UM for geb-bug-gnu-emacs@m.gmane.org; Sat, 25 Nov 2017 15:12:11 +0100 Original-Received: from localhost ([::1]:53290 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eIbBn-00007m-3q for geb-bug-gnu-emacs@m.gmane.org; Sat, 25 Nov 2017 09:12:15 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35843) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eIbBd-00006E-Vf for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2017 09:12:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eIbBa-0001OQ-Hp for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2017 09:12:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:48153) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eIbBa-0001OM-F0 for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2017 09:12:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1eIbBa-0007Qk-9M for bug-gnu-emacs@gnu.org; Sat, 25 Nov 2017 09:12:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: charles@aurox.ch (Charles A. Roelli) Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 25 Nov 2017 14:12:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17893 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17893-submit@debbugs.gnu.org id=B17893.151161910528536 (code B ref 17893); Sat, 25 Nov 2017 14:12:02 +0000 Original-Received: (at 17893) by debbugs.gnu.org; 25 Nov 2017 14:11:45 +0000 Original-Received: from localhost ([127.0.0.1]:56834 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eIbBJ-0007QC-JR for submit@debbugs.gnu.org; Sat, 25 Nov 2017 09:11:45 -0500 Original-Received: from sinyavsky.aurox.ch ([37.35.109.145]:52553) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eIbBI-0007Pz-AM for 17893@debbugs.gnu.org; Sat, 25 Nov 2017 09:11:44 -0500 Original-Received: from sinyavsky.aurox.ch (sinyavsky.aurox.ch [127.0.0.1]) by sinyavsky.aurox.ch (Postfix) with ESMTP id 0CA5D225D6 for <17893@debbugs.gnu.org>; Sat, 25 Nov 2017 14:04:20 +0000 (UTC) Authentication-Results: sinyavsky.aurox.ch (amavisd-new); dkim=pass (1024-bit key) reason="pass (just generated, assumed good)" header.d=aurox.ch DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=aurox.ch; h= references:subject:subject:in-reply-to:to:from:from:message-id :date:date; s=dkim; t=1511618657; x=1512482658; bh=uY+Jz8UL1Cba6 EM2QwbUGAU9O4hgwnjvlhWBhS1NMvw=; b=imORjBG69RWSLZBc8vc3145r2bpy+ Irdo6bQYNdjjSjU/1/7A6SIvgSudRQwcdAOUbq/2Vb99rtWWV3UtRG88taasGqmx B6ZYOc+pzF2Mt2/hTpSnMwivyUGWU8uds8+ceqAmARQN3bvHpJD4NGARBkPkhDVa lUCqmN5KQJ5EAE= X-Virus-Scanned: Debian amavisd-new at test.virtualizor.com Original-Received: from sinyavsky.aurox.ch ([127.0.0.1]) by sinyavsky.aurox.ch (sinyavsky.aurox.ch [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id OzO48ag8n6Em for <17893@debbugs.gnu.org>; Sat, 25 Nov 2017 14:04:17 +0000 (UTC) Original-Received: from gray (125.85.192.178.dynamic.wline.res.cust.swisscom.ch [178.192.85.125]) by sinyavsky.aurox.ch (Postfix) with ESMTPSA id 15259225BD; Sat, 25 Nov 2017 14:04:17 +0000 (UTC) In-reply-to: <83shd38l86.fsf@gnu.org> (message from Eli Zaretskii on Fri, 24 Nov 2017 22:39:37 +0200) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:140356 Archived-At: > Date: Fri, 24 Nov 2017 22:39:37 +0200 > From: Eli Zaretskii > > > Date: Fri, 24 Nov 2017 21:18:36 +0100 > > From: charles@aurox.ch (Charles A. Roelli) > > CC: monnier@IRO.UMontreal.CA, 17893@debbugs.gnu.org > > > > I suppose the main issue is fixed in master now: > > That's just one particular case of a more general problem with markers > stored or referenced from local variables of the cloned buffer. > > > To solve the problem more generally, maybe clone-buffer could look for > > local variables with a non-nil symbol property (called, say, > > `clone-buffer-update-function'), the value of which would be a > > function that updates the "cloned" variable properly. > > This is not different from running a clone-buffer-update-function: it > again lets modes take care of the variables thy know about which need > special handling at clone time. My problem with that is that I don't > believe this is a complete solution. Can you say what you think is missing?