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bug#59660: 29.0.50; typescript-ts-mode consistently fontifies method-nam


From: Jostein Kjønigsen
Subject: bug#59660: 29.0.50; typescript-ts-mode consistently fontifies method-names incorrectly
Date: Mon, 28 Nov 2022 16:04:41 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.0

From: "Jostein Kjønigsen" <jostein@ThinkPad-T14s.mail-host-address-is-not-set>
To: bug-gnu-emacs@gnu.org
Subject: 29.0.50; typescript-ts-mode consistently fontifies method-names incorrectly
--text follows this line--

--
When I:

1. create a typescript file (sample.ts)
2. create class and add some methods to it.

I observe that:

- method names are consistently fontified as font-lock-property-face.

I expected that:

- method names to be consistently fontified as font-luck-function-name-face.

This seems to be because of the "property_identifier" is used for
functions in the treesitter-grammar, and this property is used
indiscriminately to apply font-lock-property-face at the bottom of the
major-mode grammar.

This "shadows" the former rules which correctly apply font-lock-function-name-face.

The best would obviously have a way to identify properties more accurately, to precent
shadowing from taking place. Unfortunately I cannot see a realiable way to do that
based on the current parse-tree.

Seeing as properties in Typescript are fairly rare while methods are very common,
it seems appropriate to me to remove the property-specific fontification rules
to restore the method-fontification rules.

I got a patch for this ready, if people are willing to accept it.

--


In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.34, cairo version 1.16.0) of 2022-11-28 built on ThinkPad-T14s
Repository revision: a85ff22300736212e38f43cc7d56e8e3d4ae1203
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12201003
System Description: Ubuntu 22.10

Configured using:
 'configure --with-tree-sitter'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS
TREE_SITTER X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB

Important settings:
  value of $LC_MONETARY: nb_NO.UTF-8
  value of $LC_NUMERIC: nb_NO.UTF-8
  value of $LC_TIME: nb_NO.UTF-8
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: TypeScript

Minor modes in effect:
  global-git-commit-mode: t
  magit-auto-revert-mode: t
  lsp-diagnostics-mode: t
  lsp-headerline-breadcrumb-mode: t
  lsp-modeline-workspace-status-mode: t
  lsp-modeline-diagnostics-mode: t
  lsp-modeline-code-actions-mode: t
  electric-pair-mode: t
  lsp-completion-mode: t
  editorconfig-mode: t
  flycheck-mode: t
  which-function-mode: t
  nlinum-mode: t
  company-mode: t
  global-ede-mode: t
  dap-tooltip-mode: t
  dap-ui-many-windows-mode: t
  dap-ui-controls-mode: t
  dap-ui-mode: t
  treemacs-filewatch-mode: t
  treemacs-follow-mode: t
  treemacs-git-mode: t
  treemacs-fringe-indicator-mode: t
  dap-auto-configure-mode: t
  dap-mode: t
  global-undo-tree-mode: t
  undo-tree-mode: t
  doom-modeline-mode: t
  projectile-mode: t
  ido-yes-or-no-mode: t
  helm-mode: t
  helm-minibuffer-history-mode: t
  helm--remap-mouse-mode: t
  async-bytecomp-package-mode: t
  delete-selection-mode: t
  global-auto-revert-mode: t
  server-mode: t
  shell-dirtrack-mode: t
  global-hl-line-mode: t
  lsp-managed-mode: t
  lsp-mode: t
  yas-global-mode: t
  yas-minor-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  column-number-mode: t
  line-number-mode: t
  auto-fill-function: yas--auto-fill
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/home/jostein/.emacs.d/elpa/transient-20221028.1430/transient hides /home/jostein/build/emacs/lisp/transient
/home/jostein/.emacs.d/elpa/eglot-20221020.1010/eglot hides /home/jostein/build/emacs/lisp/progmodes/eglot

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f-shortdoc shortdoc s ewoc epg rfc6068 epg-config dash dracula-theme
compile-eslint compile text-property-search comint ansi-osc ansi-color
ring cl finder-inf rx helm-projectile-autoloads expand-region-autoloads
all-the-icons-autoloads helm-autoloads dracula-theme-autoloads
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multiple-cursors-autoloads magit-autoloads magit-section-autoloads
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posframe-autoloads ht-autoloads hydra-autoloads pfuture-autoloads
ace-window-autoloads avy-autoloads s-autoloads info dash-autoloads
macrostep-autoloads package browse-url url url-proxy url-privacy
url-expand url-methods url-history url-cookie generate-lisp-file
url-domsuf url-util mailcap url-handlers url-parse auth-source cl-seq
eieio eieio-core cl-macs password-cache json subr-x map byte-opt gv
bytecomp byte-compile url-vars cl-loaddefs cl-lib 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
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isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax
font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic
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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 cairo
move-toolbar gtk x-toolkit xinput2 x multi-tty make-network-process
emacs)

Memory information:
((conses 16 769231 98943)
 (symbols 48 61705 77)
 (strings 32 224824 12295)
 (string-bytes 1 6961649)
 (vectors 16 129092)
 (vector-slots 8 2341344 202175)
 (floats 8 1075 874)
 (intervals 56 26101 3923)
 (buffers 992 54))


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