From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#56682: locked narrowing Date: Wed, 17 Aug 2022 15:09:22 -0400 Message-ID: References: <5e3c3081-f098-8140-c767-b895c32bf30b@yandex.ru> <835yisffil.fsf@gnu.org> <831qtgff78.fsf@gnu.org> <83zgg4dw4y.fsf@gnu.org> <83r11gdrr4.fsf@gnu.org> <83edxfds7s.fsf@gnu.org> <83r11fc80o.fsf@gnu.org> <83o7wjc6o2.fsf@gnu.org> <83lernc5gu.fsf@gnu.org> <83k076dd7d.fsf@gnu.org> <83edxed8qe.fsf@gnu.org> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="25628"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 56682@debbugs.gnu.org, gregory@heytings.org, dgutov@yandex.ru To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Aug 17 21:10:12 2022 Return-path: Envelope-to: geb-bug-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 1oOOQd-0006SG-2S for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 17 Aug 2022 21:10:11 +0200 Original-Received: from localhost ([::1]:40682 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oOOQb-0001b6-Q1 for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 17 Aug 2022 15:10:09 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47194) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oOOQV-0001av-2S for bug-gnu-emacs@gnu.org; Wed, 17 Aug 2022 15:10:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:35081) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oOOQU-0008FE-QE for bug-gnu-emacs@gnu.org; Wed, 17 Aug 2022 15:10:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oOOQT-0002iF-VT for bug-gnu-emacs@gnu.org; Wed, 17 Aug 2022 15:10:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 17 Aug 2022 19:10:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 56682 X-GNU-PR-Package: emacs Original-Received: via spool by 56682-submit@debbugs.gnu.org id=B56682.166076337410390 (code B ref 56682); Wed, 17 Aug 2022 19:10:01 +0000 Original-Received: (at 56682) by debbugs.gnu.org; 17 Aug 2022 19:09:34 +0000 Original-Received: from localhost ([127.0.0.1]:53063 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oOOQ1-0002hW-NO for submit@debbugs.gnu.org; Wed, 17 Aug 2022 15:09:33 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:54216) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oOOPy-0002hG-0i for 56682@debbugs.gnu.org; Wed, 17 Aug 2022 15:09:32 -0400 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 90A83442524; Wed, 17 Aug 2022 15:09:24 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 4A74044258C; Wed, 17 Aug 2022 15:09:23 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1660763363; bh=5K9Ahoge827q3rHWTTZ/Z3DtvhMQ74EWv1NnwcnaeJM=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=c8ZfrJxR2/+u47uLd8Km5dNvSidXxqwkb6o8ZJ/tTASzjkkt/u+DlM87IinhRU2xA rHXjbk5FnKe9H2voBud0RqScaLT68qMpL3uWBVagIeC86XF9Cp6yGNnqpvHiObwJsi KVVVPxso0SpYvAoD2qt8dCv/B77n9hqcxf8MGjkqjAIUTEWiLqMwwY7LM7xJXfl9Gv RiGaTMWUIljnlY0e41vlDUo2vf5YHNZaajCRRhVurKqvIdIpkqZqeigZCAA/owQFjd YYYgxkrqmuvNXtF3W0+8W247p83cndaCKYKvUa9f0lUdsmG6jerVGRa5GcIPY0+PBa 1WNVaTZy1sAjg== Original-Received: from lechazo (lechon.iro.umontreal.ca [132.204.27.242]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 38C90120193; Wed, 17 Aug 2022 15:09:23 -0400 (EDT) In-Reply-To: <83edxed8qe.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 17 Aug 2022 21:29:29 +0300") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:240105 Archived-At: >> Because I can't find that code. > What do you mean? it's in maybe_produce_line_number, obviously... My intuition tells me it should be there, but I can't find it. >> Apparently `maybe_produce_line_number` >> just uses `w->base_line_number` whenever it's not 0, so apparently it's >> set to 0 elsewhere. > It's set to zero in several places in xdisp.c. I can't seem to find even one of them related to the fact that the buffer was modified. When I test the code, I can see that it works correctly, but I can't see in the code how the cache gets flushed/ignored/refreshed when the buffer's contents is modified (e.g. by inserting a newline at BOB). > But again, if you don't want to trust the cached values, just use > display_count_lines starting from BOB. That's already what nlinum does (via `line-number-at-pos`). Stefan