all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
* bug#70464: [PATCH] Add font-locking for Rust macro variables
@ 2024-04-19  1:42 Noah Peart
  2024-04-19  7:41 ` Yuan Fu
  0 siblings, 1 reply; 6+ messages in thread
From: Noah Peart @ 2024-04-19  1:42 UTC (permalink / raw)
  To: 70464


[-- Attachment #1.1: Type: text/plain, Size: 1668 bytes --]

Tags: patch


Adds some tree-sitter font-locking rules in rust-ts-mode to fontify
meta variables, their types, and repetition operators in macros.

These rules add new font-locking as indicated in the following
snippet:

    macro_rules! unsafe_raw_call {
        ($env:expr, $name:ident $(, $args:expr)*) => {
//          ^ font-lock-variable-name-face
//                  ^ font-lock-type-face
//                                              ^ font-lock-operator-face
//                                                                     ^
font-lock-operator-face
            {
                let env = $env;
//                                ^ font-lock-variable-use-face
                let result = unsafe {
                    let $name = raw_fn!(env, $name);
                    $name(env.raw $(, $args)*)
                };
                env.handle_exit(result)
            }
        };
    }

I also removed the last occurrence of the following duplicated rule from
the `type` feature:
    (type_identifier) @font-lock-type-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 2024-04-18 built on noah-X580VD
Repository revision: 0a57dfcff8d0abcf4427cfbfd886264bb3b8eaab
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Ubuntu 22.04.4 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'

[-- Attachment #1.2: Type: text/html, Size: 2078 bytes --]

[-- Attachment #2: 0001-Add-font-locking-for-Rust-macros.patch --]
[-- Type: text/x-patch, Size: 3148 bytes --]

From b7eb9b37eb9cfd6a94a862f5944b00c113ee7efb Mon Sep 17 00:00:00 2001
From: Noah Peart <noah.v.peart@gmail.com>
Date: Thu, 18 Apr 2024 18:22:05 -0700
Subject: [PATCH] Add font-locking for Rust macros

* lisp/progmodes/rust-ts-mode.el
(rust-ts-mode--font-lock-settings): Add font-locking for Rust
macro metavariables, fragment specifiers and repitition patterns.
---
 lisp/progmodes/rust-ts-mode.el | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/lisp/progmodes/rust-ts-mode.el b/lisp/progmodes/rust-ts-mode.el
index 7112ceced57..69538568d1c 100644
--- a/lisp/progmodes/rust-ts-mode.el
+++ b/lisp/progmodes/rust-ts-mode.el
@@ -178,6 +178,8 @@ rust-ts-mode--font-lock-settings
    '((function_item name: (identifier) @font-lock-function-name-face)
      (macro_definition "macro_rules!" @font-lock-constant-face)
      (macro_definition (identifier) @font-lock-preprocessor-face)
+     (token_binding_pattern
+      name: (metavariable) @font-lock-variable-name-face)
      (field_declaration name: (field_identifier) @font-lock-property-name-face)
      (parameter pattern: (_) @rust-ts-mode--fontify-pattern)
      (closure_parameters (_) @rust-ts-mode--fontify-pattern)
@@ -218,7 +220,9 @@ rust-ts-mode--font-lock-settings
 
    :language 'rust
    :feature 'operator
-   `([,@rust-ts-mode--operators] @font-lock-operator-face)
+   `([,@rust-ts-mode--operators] @font-lock-operator-face
+     (token_repetition_pattern ["$" "*" "+"] @font-lock-operator-face)
+     (token_repetition ["$" "*" "+"] @font-lock-operator-face))
 
    :language 'rust
    :feature 'string
@@ -248,8 +252,7 @@ rust-ts-mode--font-lock-settings
                 (_ type: (scoped_identifier
                           path: (identifier) @font-lock-type-face))))
      (mod_item name: (identifier) @font-lock-constant-face)
-     (primitive_type) @font-lock-type-face
-     (type_identifier) @font-lock-type-face
+     [(fragment_specifier) (primitive_type) (type_identifier)] @font-lock-type-face
      ((scoped_identifier name: (identifier) @rust-ts-mode--fontify-tail))
      ((scoped_identifier path: (identifier) @font-lock-type-face)
       (:match ,(rx bos
@@ -259,8 +262,7 @@ rust-ts-mode--font-lock-settings
                    eos)
               @font-lock-type-face))
      ((scoped_identifier path: (identifier) @rust-ts-mode--fontify-scope))
-     ((scoped_type_identifier path: (identifier) @rust-ts-mode--fontify-scope))
-     (type_identifier) @font-lock-type-face)
+     ((scoped_type_identifier path: (identifier) @rust-ts-mode--fontify-scope)))
 
    :language 'rust
    :feature 'property
@@ -294,7 +296,8 @@ rust-ts-mode--font-lock-settings
      (return_expression (identifier) @font-lock-variable-use-face)
      (tuple_expression (identifier) @font-lock-variable-use-face)
      (unary_expression (identifier) @font-lock-variable-use-face)
-     (while_expression condition: (identifier) @font-lock-variable-use-face))
+     (while_expression condition: (identifier) @font-lock-variable-use-face)
+     (metavariable) @font-lock-variable-use-face)
 
    :language 'rust
    :feature 'escape-sequence
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2024-04-22  5:00 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-04-19  1:42 bug#70464: [PATCH] Add font-locking for Rust macro variables Noah Peart
2024-04-19  7:41 ` Yuan Fu
2024-04-19  8:02   ` Vladimir Kazanov
2024-04-19 16:44     ` Noah Peart
2024-04-19 17:38       ` Noah Peart
2024-04-22  5:00         ` Yuan Fu

Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.