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Hermes SMTP Server) with ESMTPA ID faee10d410171c46a0231823440b92f2; Tue, 22 Nov 2022 13:08:40 +0000 (UTC) From: Po Lu To: bug-gnu-emacs@gnu.org Subject: 29.0.50; c-ts-mode doesn't play nicely with pixel-scroll-precision-mode Date: Tue, 22 Nov 2022 21:08:30 +0800 Message-ID: <877czn3zn5.fsf@yahoo.com> MIME-Version: 1.0 Content-Type: text/plain References: <877czn3zn5.fsf.ref@yahoo.com> X-Mailer: WebService/1.1.20863 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 4000 Received-SPF: pass client-ip=66.163.184.146; envelope-from=luangruo@yahoo.com; helo=sonic309-20.consmr.mail.ne1.yahoo.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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -0.6 (/) 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: -1.6 (-) Enable pixel-scroll-precision-mode, then open src/xterm.c. Go to line 3439, enable c-ts-mode, and scroll up _with a trackpad_ until line 1675 becomes visible near the start of the window. Finally, go down to line 1817: brackets will become randomly fontified in the error face. In addition, I was expecting c-ts-mode to be quite a lot faster fontifying during precision scrolling, but it is currently as slow as CC Mode. I think that is almost definitely a bug somewhere in our tree-sitter fontification code, since emacs-lisp-mode fontifies much faster. In GNU Emacs 29.0.50 (build 243, x86_64-pc-linux-gnu) of 2022-11-22 built on trinity Repository revision: 350918e7be82fca046911073b360518173169255 Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12101099 System Description: Fedora Linux 37 (Workstation Edition) Configured using: 'configure --with-x --with-x-toolkit=no --without-cairo --with-dumping=unexec --cache-file=/tmp/ccache' Configured features: ACL DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY OLDXMENU PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TREE_SITTER UNEXEC WEBP X11 XDBE XFT XIM XINPUT2 XPM ZLIB Important settings: value of $LANG: en_GB.utf8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Major mode: C Minor modes in effect: pixel-scroll-precision-mode: t tooltip-mode: t global-eldoc-mode: t show-paren-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t line-number-mode: t indent-tabs-mode: t transient-mark-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message mailcap yank-media puny dired dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068 epg-config gnus-util mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils warnings icons c-ts-mode misearch multi-isearch add-log log-view pcvs-util vc time-date cus-start cus-load pixel-scroll cua-base ring subr-x vc-git diff-mode easy-mmode vc-dispatcher bug-reference byte-opt gv bytecomp byte-compile find-func cc-langs cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs cl-extra shortdoc text-property-search thingatpt help-fns radix-tree help-mode sh-script rx smie treesit cl-seq cl-loaddefs cl-lib executable rmc iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic indonesian philippine cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting xinput2 x multi-tty make-network-process emacs) Memory information: ((conses 16 220297 20026) (symbols 48 27211 0) (strings 32 52112 2076) (string-bytes 1 1435642) (vectors 16 28133) (vector-slots 8 881343 40772) (floats 8 194 659) (intervals 56 19633 0) (buffers 992 18)) From debbugs-submit-bounces@debbugs.gnu.org Tue Nov 22 15:44:32 2022 Received: (at 59481) by debbugs.gnu.org; 22 Nov 2022 20:44:32 +0000 Received: from localhost ([127.0.0.1]:52656 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oxa88-0001w7-7R for submit@debbugs.gnu.org; Tue, 22 Nov 2022 15:44:32 -0500 Received: from mail-pf1-f180.google.com ([209.85.210.180]:34313) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oxa81-0001vo-Uw for 59481@debbugs.gnu.org; Tue, 22 Nov 2022 15:44:30 -0500 Received: by mail-pf1-f180.google.com with SMTP id z26so15464812pff.1 for <59481@debbugs.gnu.org>; Tue, 22 Nov 2022 12:44:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=to:cc:date:message-id:subject:mime-version :content-transfer-encoding:from:from:to:cc:subject:date:message-id :reply-to; bh=0AYRGkYUynMrSUXv4iums0Wa9FacXFJiJtK+pyvHBiU=; b=BzSai85pJmd+ALegtA1BtpZlHnH5lTuJ1bymiZGVuqHWAEx3Bo70jJFh3NTA4i2kLW 61oMOK2FcQ5eaWR4BowJR4E+H7fZkrppk9ZNE297ro1BUwdFlH5zFOLVsMr0jDUDmjE8 lK+djRns12atGaiEg3AoUXQmY/afNvIHi2VGVOrAU3zw18N3kbwilNBxsbVw4FIKa8TP DzX/+THy0rYydBhepKCRdKRXnmz5xfDPWyWBSmYAcaudYPBwwQ6EJiHy+vhauvu0JhN6 jI/QLt59YeNFRjcc7wi8KmOo7TTfnTarn/NSDd5WdQEiMBCH7WiDeqWyT/oVs4QX08yr PWaQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:cc:date:message-id:subject:mime-version :content-transfer-encoding:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0AYRGkYUynMrSUXv4iums0Wa9FacXFJiJtK+pyvHBiU=; b=S7K/l8Fho03DcoAKzk8cPICgtnhc/7pk4M4tQnqtvyP3dr0zEh3bSLeccg4gtHwZ1I BWm6SOutItVV7kkPY0QjZ3aJ6Pbk79CXjMIOsZ/FCfbhjsuYpiKc3tuV09nX0texnI/f QqBgQAOrK2D6QNkUp+3yKIMy4qyKYQU98p9XFasbjC8bB5bl79/NK87MeFY+gOQ8dNvz rj0s5XwlQcejtr19ZOFaCnlgOkjQVMzYq0wHTEcJEEipgxrks0tJejf1CJzpBm91qIIh ItQtRwn6Xh3BHKlX3zMXr3WjOZaIBGGbhEfafLr1QfLw5PLO/s21yJJm8vO9+pv1LqtI Gg+g== X-Gm-Message-State: ANoB5pmXJTbI8ZzKBlxCVkG8oGIcqTxvNIYoU6iQrdbaA0FqmlO7dYik bBwyaXgZQSHyam1tFIohmjw= X-Google-Smtp-Source: AA0mqf4WQMrgqLLmw3gYFHgVtFzkIq9M3Nj9qG1HzDndvHKDTA7T9oN9Rhnq8ApsVlfWgu8+TOpnVA== X-Received: by 2002:a62:e80b:0:b0:56e:ad31:b98b with SMTP id c11-20020a62e80b000000b0056ead31b98bmr9945187pfi.40.1669149859949; Tue, 22 Nov 2022 12:44:19 -0800 (PST) Received: from smtpclient.apple (cpe-172-117-161-177.socal.res.rr.com. [172.117.161.177]) by smtp.gmail.com with ESMTPSA id u10-20020a170903124a00b00186b3528a06sm12656452plh.41.2022.11.22.12.44.19 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 22 Nov 2022 12:44:19 -0800 (PST) From: Yuan Fu Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.1\)) Subject: Re: bug#59481: 29.0.50; c-ts-mode doesn't play nicely with pixel-scroll-precision-mode Message-Id: <6B7338DA-2F7A-486B-8213-B180D1BA146E@gmail.com> Date: Tue, 22 Nov 2022 12:44:18 -0800 To: Po Lu X-Mailer: Apple Mail (2.3696.120.41.1.1) X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 59481 Cc: 59481@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 (-) Po Lu writes: > Enable pixel-scroll-precision-mode, then open src/xterm.c. Go to line > 3439, enable c-ts-mode, and scroll up _with a trackpad_ until line = 1675 > becomes visible near the start of the window. Finally, go down to = line > 1817: brackets will become randomly fontified in the error face. > > In addition, I was expecting c-ts-mode to be quite a lot faster > fontifying during precision scrolling, but it is currently as slow as = CC > Mode. I think that is almost definitely a bug somewhere in our > tree-sitter fontification code, since emacs-lisp-mode fontifies much > faster. How do you decide if the scrolling is fast or not? Maybe you are seeing palpable lags? I=E2=80=99m using macOS with the builtin trackpad, and = scrolling is pretty snappy. Maybe this only happens on Linux? I=E2=80=99m also = seeing random error faces (albeit not on brackets), could this relate to some particular way pixel-scrolling works? Does pixel-scrolling do anything special comparing to normal scrolling when fontifying text? 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Hermes SMTP Server) with ESMTPA ID f5d2cda8926e92c33eab896334727127; Wed, 23 Nov 2022 00:45:56 +0000 (UTC) From: Po Lu To: Yuan Fu Subject: Re: bug#59481: 29.0.50; c-ts-mode doesn't play nicely with pixel-scroll-precision-mode In-Reply-To: <6B7338DA-2F7A-486B-8213-B180D1BA146E@gmail.com> (Yuan Fu's message of "Tue, 22 Nov 2022 12:44:18 -0800") References: <6B7338DA-2F7A-486B-8213-B180D1BA146E@gmail.com> Date: Wed, 23 Nov 2022 08:45:51 +0800 Message-ID: <87edtu33cw.fsf@yahoo.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Mailer: WebService/1.1.20863 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 704 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 59481 Cc: 59481@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 (-) Yuan Fu writes: > How do you decide if the scrolling is fast or not? Maybe you are seeing > palpable lags? I=E2=80=99m using macOS with the builtin trackpad, and scr= olling > is pretty snappy. Maybe this only happens on Linux? I=E2=80=99m also seei= ng > random error faces (albeit not on brackets), could this relate to some > particular way pixel-scrolling works? Does pixel-scrolling do anything > special comparing to normal scrolling when fontifying text? Likely not, it just uses the normal jit-lock fontification like everyone else. I suggest comparing the speed of scrolling with that of emacs-lisp-mode, and maybe setting ns-scroll-event-delta-factor to 3 or 4. Thanks.