From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Joseph Turner via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#60643: 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> Reply-To: Joseph Turner Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="38071"; mail-complaints-to="usenet@ciao.gmane.io" To: 60643@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Jan 08 05:58:28 2023 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 1pENlM-0009iq-5M for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 08 Jan 2023 05:58:28 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pENl0-0005iW-0d; Sat, 07 Jan 2023 23:58:06 -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 1pENkw-0005i4-Kb for bug-gnu-emacs@gnu.org; Sat, 07 Jan 2023 23:58:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pENkw-0007LB-Ac for bug-gnu-emacs@gnu.org; Sat, 07 Jan 2023 23:58:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pENkv-0002eB-QH for bug-gnu-emacs@gnu.org; Sat, 07 Jan 2023 23:58:01 -0500 X-Loop: help-debbugs@gnu.org 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-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.167315383010112 (code B ref -1); Sun, 08 Jan 2023 04:58:01 +0000 Original-Received: (at submit) by debbugs.gnu.org; 8 Jan 2023 04:57:10 +0000 Original-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 Original-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 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 1pENk3-0005by-ER for bug-gnu-emacs@gnu.org; Sat, 07 Jan 2023 23:57:07 -0500 Original-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. 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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