Tags: patch


This patch adds fontification for the left-hand side of assignments in
typescript-ts-mode.

The object and/or property being assigned to is fontified with
`font-lock-variable-name-face` and/or `font-lock-property-name-face`,
while any other identifiers/properties on the left-hand side used in
index expressions are fontified with
`font-lock-variable-use-face`/`font-lock-property-use-face`.

For example, fontification is added in `typescript-ts-mode` for
identifiers in statements like the following:

    arr[obj.x * obj.x] = 1;
    //^ font-lock-variable-name-face
    //    ^ font-lock-variable-use-face
    //      ^ font-lock-property-use-face
    obj.x.y = 0;
    //^ font-lock-variable-name-face
    //  ^ font-lock-property-name-face
    //    ^ font-lock-property-name-face
    ++mat[x][arr[0]];
    // ^ font-lock-variable-name-face
    //        ^ font-lock-variable-use-face

In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.33, cairo version 1.16.0) of 2023-12-12 built on noah-X580VD
Repository revision: 75fd7550ed6cede6c9e8224f1f2d62637c43fdd4
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Ubuntu 22.04.3 LTS

Configured using:
 'configure --prefix=/usr/local --with-modules --with-tree-sitter
--with-threads --with-x-toolkit=gtk3 --with-xwidgets --with-gnutls
--with-json --with-mailutils --with-jpeg --with-png --with-rsvg
--with-tiff --with-xml2 --with-xpm --with-imagemagick CC=gcc-12
CXX=gcc-12'