From unknown Sat Jun 21 05:14:29 2025 X-Loop: help-debbugs@gnu.org Subject: bug#60643: 29.0.50; set-buffer-major-mode resets buffer local variables Resent-From: Joseph Turner Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 08 Jan 2023 04:58:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 60643 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: 60643@debbugs.gnu.org X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.167315383010112 (code B ref -1); Sun, 08 Jan 2023 04:58:01 +0000 Received: (at submit) by debbugs.gnu.org; 8 Jan 2023 04:57:10 +0000 Received: from localhost ([127.0.0.1]:59537 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pENk6-0002d1-Gk for submit@debbugs.gnu.org; Sat, 07 Jan 2023 23:57:10 -0500 Received: from lists.gnu.org ([209.51.188.17]:59622) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pENk4-0002cr-5P for submit@debbugs.gnu.org; Sat, 07 Jan 2023 23:57:09 -0500 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 1pENk3-0005by-ER for bug-gnu-emacs@gnu.org; Sat, 07 Jan 2023 23:57:07 -0500 Received: from out-130.mta0.migadu.com ([2001:41d0:1004:224b::82]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pENjz-000784-Lc for bug-gnu-emacs@gnu.org; Sat, 07 Jan 2023 23:57:06 -0500 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=breatheoutbreathe.in; s=key1; t=1673153819; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=akhRLJYZkwMnXMm27/YDDtRkWABBl9lYN5Rpg7dPRSg=; b=ZVRos0ui8IY+piN2yHRGnCInwD35nEAaubGIZbuTTkYNyo0HkRQR82BVbqEnIVJKTkK0YY vFFNVQCaVCrIi21lEoiOnjvtsIA9zv5Lc4mGDo6pRkemPIJL9q2OMRSpp02DrTbnGcQ78M 15/n/4jk98NFGb5nBVFz14FxofEKhg0= From: Joseph Turner Date: Sat, 07 Jan 2023 20:48:54 -0800 Message-ID: <87eds5r5d4.fsf@breatheoutbreathe.in> MIME-Version: 1.0 Content-Type: text/plain X-Migadu-Flow: FLOW_OUT Received-SPF: pass client-ip=2001:41d0:1004:224b::82; envelope-from=joseph@breatheoutbreathe.in; helo=out-130.mta0.migadu.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.4 (-) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.4 (--) Hello! It appears that set-buffer-major-mode resets buffer local variables. To reproduce with `emacs -Q`: (defvar-local test-var nil) (setq test-var t) (message "%s" test-var) ;; t ;; (set-auto-mode) (set-buffer-major-mode (current-buffer)) (message "%s" test-var) ;; nil Is this behavior expected? Thank you!! Joseph In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.16.0) Windowing system distributor 'The X.Org Foundation', version 11.0.12011000 System Description: Debian GNU/Linux 11 (bullseye) Configured using: 'configure CONFIG_SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash --prefix=/gnu/store/4mnib031vflf88ms8w7kyfahcbv1k9vc-emacs-next-29.0.50-3.22e8a77 --enable-fast-install --with-modules --with-cairo --with-native-compilation --disable-build-details' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB From unknown Sat Jun 21 05:14:29 2025 X-Loop: help-debbugs@gnu.org Subject: bug#60643: 29.0.50; set-buffer-major-mode resets buffer local variables Resent-From: Ruijie Yu Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 08 Jan 2023 05:51:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 60643 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Joseph Turner Cc: 60643@debbugs.gnu.org Received: via spool by 60643-submit@debbugs.gnu.org id=B60643.167315700315436 (code B ref 60643); Sun, 08 Jan 2023 05:51:02 +0000 Received: (at 60643) by debbugs.gnu.org; 8 Jan 2023 05:50:03 +0000 Received: from localhost ([127.0.0.1]:59636 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pEOZG-00040r-Dh for submit@debbugs.gnu.org; Sun, 08 Jan 2023 00:50:03 -0500 Received: from netyu.xyz ([152.44.41.246]:54860 helo=mail.netyu.xyz) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pEOZD-00040F-61 for 60643@debbugs.gnu.org; Sun, 08 Jan 2023 00:50:01 -0500 Received: from fw.net.yu.netyu.xyz (99-87-204-218.lightspeed.irvnca.sbcglobal.net [99.87.204.218]) by netyu.xyz (OpenSMTPD) with ESMTPSA id 252fa267 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Sun, 8 Jan 2023 05:49:58 +0000 (UTC) References: <87eds5r5d4.fsf@breatheoutbreathe.in> User-agent: mu4e 1.8.13; emacs 29.0.60 From: Ruijie Yu Date: Sat, 07 Jan 2023 23:45:52 -0600 In-reply-to: <87eds5r5d4.fsf@breatheoutbreathe.in> Message-ID: MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.0 (/) Joseph Turner via "Bug reports for GNU Emacs, the Swiss army knife of text editors" writes: > Hello! > > It appears that set-buffer-major-mode resets buffer local variables. > > To reproduce with `emacs -Q`: > > (defvar-local test-var nil) > (setq test-var t) > (message "%s" test-var) ;; t > ;; (set-auto-mode) > (set-buffer-major-mode (current-buffer)) > (message "%s" test-var) ;; nil > > Is this behavior expected? > > Thank you!! > > Joseph > > In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version > 3.24.30, cairo version 1.16.0) > Windowing system distributor 'The X.Org Foundation', version 11.0.12011000 > System Description: Debian GNU/Linux 11 (bullseye) > > Configured using: > 'configure > CONFIG_SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash > SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash > --prefix=/gnu/store/4mnib031vflf88ms8w7kyfahcbv1k9vc-emacs-next-29.0.50-3.22e8a77 > --enable-fast-install --with-modules --with-cairo > --with-native-compilation --disable-build-details' > > Configured features: > ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG > JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES > NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 > THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB There is another concept called "permanent local variables" which you might be thinking about when looking at "local variables", see info node `(elisp) Standard Properties' for more information. Best, RY From unknown Sat Jun 21 05:14:29 2025 X-Loop: help-debbugs@gnu.org Subject: bug#60643: 29.0.50; set-buffer-major-mode resets buffer local variables Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 08 Jan 2023 06:00:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 60643 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Joseph Turner Cc: 60643@debbugs.gnu.org Received: via spool by 60643-submit@debbugs.gnu.org id=B60643.167315759716426 (code B ref 60643); Sun, 08 Jan 2023 06:00:02 +0000 Received: (at 60643) by debbugs.gnu.org; 8 Jan 2023 05:59:57 +0000 Received: from localhost ([127.0.0.1]:59654 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pEOir-0004Gs-7o for submit@debbugs.gnu.org; Sun, 08 Jan 2023 00:59:57 -0500 Received: from eggs.gnu.org ([209.51.188.92]:53252) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pEOip-0004Gf-Qi for 60643@debbugs.gnu.org; Sun, 08 Jan 2023 00:59:56 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pEOij-0006rO-H8; Sun, 08 Jan 2023 00:59:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=QYOHHSK9wPSX3W8DHqG67Ak1MhRyFGXj0f79XVxcjY0=; b=G6svpq5xHCLq Q5wIHPbEbnRM3CkSPzNyyWU2eM8mLPuCsLPEdNYgwNWFDe/RjvSZT//9qlEe12JwEdgbwqLiULJak lAM/X/Y2657mfF9zYyPGWcyRY8QSiljM2yahig+p4grOH5dCPLSsXpQfliHmAcNIi8XkExZdZcieE ZAqeu9Zv49oY3baAULJh/9XEB7ca7Ho4xyrO1Saw4LUR+v5Erk+qq1kZXQTaaIbJ0t53RIlOAi3/T MtZHQYqd+N0JDPSmfjJJ/uI4dySi5WDvIE9NI9m1EviAGlgaAyRjO8hTPn+qxuAwBGyloZkowCk+n dGNggImNQ9uIHx82z4ECrQ==; Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pEOii-0006pZ-3t; Sun, 08 Jan 2023 00:59:49 -0500 Date: Sun, 08 Jan 2023 08:00:11 +0200 Message-Id: <83ilhhr2fo.fsf@gnu.org> From: Eli Zaretskii In-Reply-To: <87eds5r5d4.fsf@breatheoutbreathe.in> (bug-gnu-emacs@gnu.org) References: <87eds5r5d4.fsf@breatheoutbreathe.in> X-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > Date: Sat, 07 Jan 2023 20:48:54 -0800 > From: Joseph Turner via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" > > It appears that set-buffer-major-mode resets buffer local variables. > > To reproduce with `emacs -Q`: > > (defvar-local test-var nil) > (setq test-var t) > (message "%s" test-var) ;; t > ;; (set-auto-mode) > (set-buffer-major-mode (current-buffer)) > (message "%s" test-var) ;; nil > > Is this behavior expected? Yes, I think so. Changing the major mode kills all buffer-local variables. If you don't want some variable to be killed, give it the permanent-local property. From unknown Sat Jun 21 05:14:29 2025 X-Loop: help-debbugs@gnu.org Subject: bug#60643: 29.0.50; set-buffer-major-mode resets buffer local variables Resent-From: Joseph Turner Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 08 Jan 2023 10:28:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 60643 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: To: Eli Zaretskii , ruijie@netyu.xyz Cc: 60643@debbugs.gnu.org Received: via spool by 60643-submit@debbugs.gnu.org id=B60643.167317367012895 (code B ref 60643); Sun, 08 Jan 2023 10:28:02 +0000 Received: (at 60643) by debbugs.gnu.org; 8 Jan 2023 10:27:50 +0000 Received: from localhost ([127.0.0.1]:59937 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pESu6-0003Lv-0t for submit@debbugs.gnu.org; Sun, 08 Jan 2023 05:27:50 -0500 Received: from out2.migadu.com ([188.165.223.204]:64868) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pESu3-0003Lm-RT for 60643@debbugs.gnu.org; Sun, 08 Jan 2023 05:27:48 -0500 References: <87eds5r5d4.fsf@breatheoutbreathe.in> <83ilhhr2fo.fsf@gnu.org> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=breatheoutbreathe.in; s=key1; t=1673173666; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Y7DgC6yAqt3QVWF2naUuB55wDRakUnjxASeTOxq+FMw=; b=NtYK5bQsH5V49gH+DFkfBU4xwMvGBnwPq3Y9W3AWQltxEwCT80AYWZ9eR6snnmn3wd2aSY LXzAYnO7gBIDvUnS3WqWuyXHdMAHI0hr/ppLrvF3rLcZSZ/CR/83vQNnSXHs3klXmg9Wg1 VVW9UrbmHoobLxSdRAQsHcvV5BLZF5I= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Joseph Turner Date: Sun, 08 Jan 2023 01:09:55 -0800 In-reply-to: <83ilhhr2fo.fsf@gnu.org> Message-ID: <875ydhqq1s.fsf@breatheoutbreathe.in> MIME-Version: 1.0 Content-Type: text/plain X-Migadu-Flow: FLOW_OUT X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Hello! Eli Zaretskii writes: > Changing the major mode kills all buffer-local variables. If you don't > want some variable to be killed, give it the permanent-local property. Ruijie Yu writes: > There is another concept called "permanent local variables" which you > might be thinking about when looking at "local variables", see info node > `(elisp) Standard Properties' for more information. Thank you both for your help!! This solves it: (put 'test-var 'permanent-local t) Joseph From unknown Sat Jun 21 05:14:29 2025 MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) X-Loop: help-debbugs@gnu.org From: help-debbugs@gnu.org (GNU bug Tracking System) To: Joseph Turner Subject: bug#60643: closed (Re: bug#60643: 29.0.50; set-buffer-major-mode resets buffer local variables) Message-ID: References: <87358lqq0n.fsf@breatheoutbreathe.in> <87eds5r5d4.fsf@breatheoutbreathe.in> X-Gnu-PR-Message: they-closed 60643 X-Gnu-PR-Package: emacs Reply-To: 60643@debbugs.gnu.org Date: Sun, 08 Jan 2023 10:29:02 +0000 Content-Type: multipart/mixed; boundary="----------=_1673173742-13018-1" This is a multi-part message in MIME format... ------------=_1673173742-13018-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Your bug report #60643: 29.0.50; set-buffer-major-mode resets buffer local variables which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 60643@debbugs.gnu.org. --=20 60643: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D60643 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems ------------=_1673173742-13018-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at 60643-done) by debbugs.gnu.org; 8 Jan 2023 10:28:31 +0000 Received: from localhost ([127.0.0.1]:59941 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pESul-0003NF-DA for submit@debbugs.gnu.org; Sun, 08 Jan 2023 05:28:31 -0500 Received: from out-142.mta0.migadu.com ([91.218.175.142]:37264) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pESuk-0003N5-2R for 60643-done@debbugs.gnu.org; Sun, 08 Jan 2023 05:28:30 -0500 References: <87eds5r5d4.fsf@breatheoutbreathe.in> <83ilhhr2fo.fsf@gnu.org> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=breatheoutbreathe.in; s=key1; t=1673173708; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Y7DgC6yAqt3QVWF2naUuB55wDRakUnjxASeTOxq+FMw=; b=WzD/VLVv6oltejeIb/CNzd3OGaCZouQMb7VsTyjChlaW9k6B4ECzeX7u1GqlJuCDnKyptY jtXXpT539g3wnijCvO1KhDlRJ+vI9XYBKGiCMGPv3i6lZwGH+TH4Oa9OBHwMDbPuOZu5Cs IBtKBAR958eegdmsOf8lGoBQW6uqnBQ= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Joseph Turner To: Eli Zaretskii , ruijie@netyu.xyz Subject: Re: bug#60643: 29.0.50; set-buffer-major-mode resets buffer local variables Date: Sun, 08 Jan 2023 01:09:55 -0800 In-reply-to: <83ilhhr2fo.fsf@gnu.org> Message-ID: <87358lqq0n.fsf@breatheoutbreathe.in> MIME-Version: 1.0 Content-Type: text/plain X-Migadu-Flow: FLOW_OUT X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 60643-done Cc: 60643-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Hello! Eli Zaretskii writes: > Changing the major mode kills all buffer-local variables. If you don't > want some variable to be killed, give it the permanent-local property. Ruijie Yu writes: > There is another concept called "permanent local variables" which you > might be thinking about when looking at "local variables", see info node > `(elisp) Standard Properties' for more information. Thank you both for your help!! This solves it: (put 'test-var 'permanent-local t) Joseph ------------=_1673173742-13018-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at submit) by debbugs.gnu.org; 8 Jan 2023 04:57:10 +0000 Received: from localhost ([127.0.0.1]:59537 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pENk6-0002d1-Gk for submit@debbugs.gnu.org; Sat, 07 Jan 2023 23:57:10 -0500 Received: from lists.gnu.org ([209.51.188.17]:59622) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pENk4-0002cr-5P for submit@debbugs.gnu.org; Sat, 07 Jan 2023 23:57:09 -0500 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 1pENk3-0005by-ER for bug-gnu-emacs@gnu.org; Sat, 07 Jan 2023 23:57:07 -0500 Received: from out-130.mta0.migadu.com ([2001:41d0:1004:224b::82]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pENjz-000784-Lc for bug-gnu-emacs@gnu.org; Sat, 07 Jan 2023 23:57:06 -0500 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=breatheoutbreathe.in; s=key1; t=1673153819; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=akhRLJYZkwMnXMm27/YDDtRkWABBl9lYN5Rpg7dPRSg=; b=ZVRos0ui8IY+piN2yHRGnCInwD35nEAaubGIZbuTTkYNyo0HkRQR82BVbqEnIVJKTkK0YY vFFNVQCaVCrIi21lEoiOnjvtsIA9zv5Lc4mGDo6pRkemPIJL9q2OMRSpp02DrTbnGcQ78M 15/n/4jk98NFGb5nBVFz14FxofEKhg0= From: Joseph Turner To: bug-gnu-emacs@gnu.org Subject: 29.0.50; set-buffer-major-mode resets buffer local variables Date: Sat, 07 Jan 2023 20:48:54 -0800 Message-ID: <87eds5r5d4.fsf@breatheoutbreathe.in> MIME-Version: 1.0 Content-Type: text/plain X-Migadu-Flow: FLOW_OUT Received-SPF: pass client-ip=2001:41d0:1004:224b::82; envelope-from=joseph@breatheoutbreathe.in; helo=out-130.mta0.migadu.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.4 (-) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.4 (--) Hello! It appears that set-buffer-major-mode resets buffer local variables. To reproduce with `emacs -Q`: (defvar-local test-var nil) (setq test-var t) (message "%s" test-var) ;; t ;; (set-auto-mode) (set-buffer-major-mode (current-buffer)) (message "%s" test-var) ;; nil Is this behavior expected? Thank you!! Joseph In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.16.0) Windowing system distributor 'The X.Org Foundation', version 11.0.12011000 System Description: Debian GNU/Linux 11 (bullseye) Configured using: 'configure CONFIG_SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash --prefix=/gnu/store/4mnib031vflf88ms8w7kyfahcbv1k9vc-emacs-next-29.0.50-3.22e8a77 --enable-fast-install --with-modules --with-cairo --with-native-compilation --disable-build-details' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB ------------=_1673173742-13018-1--