doom

commit c5937a0e56bede4fa6003e8e42ecaf6164fb38b7
parent 18b94ec063a25d4644569dfe3c66c003f8057a19
Author: Michael Neuper <michael@michaelneuper.com>
Date:   Mon, 18 May 2026 13:36:43 +0200

configure rust +eglot

Diffstat:
M
config.org
 | 
51
+++++++++++++++++++++++++++++++++++++++++++++++----
M
init.el
 | 
6
+++---

2 files changed, 50 insertions(+), 7 deletions(-)
diff --git a/config.org b/config.org
@@ -1088,6 +1088,13 @@ If prefix ARG is non-nil, cd into `default-directory' instead of project root."
 #+begin_src emacs-lisp
 (setq eros-eval-result-prefix "⇒ ") ;; or use ⟹
 #+end_src
+*** lookup
+Prevent those annoying popups from resizing the echo area.
+#+begin_src emacs-lisp
+(after! eldoc
+  (setq eldoc-echo-area-use-multiline-p nil))
+#+end_src
+
 *** llm
 #+begin_src emacs-lisp
 (defvar my/llm-sidebar-width 0.4
@@ -1365,15 +1372,38 @@ Toggle a workspace-local Codex sidebar.
 By default =eglot-code-action-indicator= is set to a lightbulb emoji (💡) which
 annoyingly causes the line height to increase when hovering over certain things on macOS,
 let's change this to a nerd font light bulb instead.
+
+Also disable inlay hints.
 #+begin_src emacs-lisp
 (after! eglot
-  (setq eglot-code-action-indicator "")
+  (setq eglot-code-action-indicator ""
+        eglot-ignored-server-capabilities ;; disable some intrusive features
+        '(:documentHighlightProvider
+          :documentOnTypeFormattingProvider))
+
+  (defadvice! +eglot--no-auto-inlay-hints-a (fn)
+    "Prevent eglot from auto-enabling inlay hints on activation."
+    :around #'eglot--maybe-activate-editing-mode
+    (let ((orig (symbol-function 'eglot-inlay-hints-mode)))
+      (cl-letf (((symbol-function 'eglot-inlay-hints-mode)
+                 (lambda (n) (when (< n 1) (funcall orig n)))))
+        (funcall fn))))
 
   (custom-set-faces!
-    `(eglot-inlay-hint-face
+    `(eglot-inlay-hint-face ;; FIXME background does not change when selected
       :foreground ,(doom-color 'base5)
-      :height 0.9))
-  ;; :family ,my/sans-serif-font))
+      :height 0.9)
+    '((eglot-semantic-definition
+       eglot-semantic-declaration
+       eglot-semantic-static
+       eglot-semantic-defaultLibrary)
+      :foreground unspecified)
+    `(eglot-semantic-operator :foreground ,(doom-color 'cyan))
+    `(eglot-semantic-namespace :foreground ,(doom-color 'violet))
+    '(eglot-semantic-comment :slant italic)
+    '(eglot-semantic-documentation :slant normal)
+    '(eglot-semantic-defaultLibrary :weight bold)
+    '(eglot-semantic-macro :weight normal))
 
   (map! :map eglot-mode-map
         :leader
@@ -1485,6 +1515,19 @@ Install with ~npm install -g pyright~.
   (setq python-shell-interpreter "python3.11"
         doom-modeline-env-python-executable "python3.11"))
 #+end_src
+*** rust +lsp
+Eglot receives Rust-specific semantic tokens like ~lifetime~, but it only
+defines faces for standard LSP token types, so add the missing Rust ones.
+#+begin_src emacs-lisp
+(after! eglot
+  (defface eglot-semantic-lifetime
+    `((t (:foreground ,(doom-color 'fg-alt) :slant italic)))
+    "Face for Rust lifetime semantic tokens."
+    :group 'eglot-semantic-faces)
+
+  (dolist (token '("lifetime" "macro"))
+    (add-to-list 'eglot-semantic-token-types token)))
+#+end_src
 *** latex +cdlatex
 Enable auomatic insertion of braces after sub/superscript in =LaTeX-math-mode=.
 This used to the default behaviour in doom but was changed in commit [[https://github.com/doomemacs/doomemacs/commit/57fcd95e7dd61fcfc235293d7909e7b008466113][57fcd95]].
diff --git a/init.el b/init.el
@@ -70,7 +70,7 @@
        vterm             ; the best terminal emulation in Emacs
 
        :checkers
-       (syntax +childframe +flymake +icons) ; tasing you for every semicolon you forget
+       (syntax +flymake +icons) ; tasing you for every semicolon you forget
        ;;(spell +flyspell) ; tasing you for misspelling mispelling
        ;;grammar           ; tasing grammar mistake every you make
 
@@ -84,7 +84,7 @@
        editorconfig      ; let someone else argue about tabs vs spaces
        ;;ein               ; tame Jupyter notebooks with emacs
        (eval +overlay)     ; run code, run (also, repls)
-       lookup              ; navigate your code and its documentation
+       (lookup +docsets) ; navigate your code and its documentation
        llm               ; when I said you needed friends, I didn't mean...
        (lsp +eglot +booster)        ; M-x vscode
        magit             ; a git porcelain for Emacs
@@ -153,7 +153,7 @@
        ;;rest              ; Emacs as a REST client
        ;;rst               ; ReST in peace
        ;;(ruby +rails)     ; 1.step {|i| p "Ruby is #{i.even? ? 'love' : 'life'}"}
-       rust              ; Fe2O3.unwrap().unwrap().unwrap().unwrap()
+       (rust +lsp +tree-sitter) ; Fe2O3.unwrap().unwrap().unwrap().unwrap()
        ;;scala             ; java, but good
        ;;(scheme +guile)   ; a fully conniving family of lisps
        (sh +tree-sitter) ; she sells {ba,z,fi}sh shells on the C xor