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fix(tree-sitter): discard COMMIT recipe argument on <=30.x

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Otherwise `treesit--install-language-grammar-1` will throw an arity
error on Emacs <=30.x when installing grammars.

Fix: #8393
This commit is contained in:
Henrik Lissner
2025-05-16 08:49:20 +02:00
parent 776da0dcf1
commit a329d63f7d
1 changed files with 26 additions and 15 deletions
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41
modules/tools/tree-sitter/autoload/tree-sitter.el
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@ -5,16 +5,21 @@
(message "Old tree-sitter.el support is deprecated!"))
;;;###autodef (fset 'set-tree-sitter! #'ignore)
(defun set-tree-sitter! (mode ts-mode &optional langs)
(defun set-tree-sitter! (mode ts-mode &optional recipes)
"Remap major MODE to TS-MODE.
MODE and TS-MODE are major mode symbols. If LANGS is provided, fall back to MODE
if LANGS don't pass `treesit-ready-p' when activating TS-MODE. Use this for ts
modes that error out instead of failing gracefully."
MODE and TS-MODE are major mode symbols. If RECIPES is provided, fall back to
MODE if RECIPES don't pass `treesit-ready-p' when activating TS-MODE. Use this
for ts modes that error out instead of failing gracefully.
RECIPES are an alist of plists with the format (LANG &key URL REV SOURCE-DIR CC
CPP COMMIT), which will be transformed into entries for
`treesit-language-source-alist' (which descrie what each of these keys mean).
Note that COMMIT is only available in Emacs >=31."
(declare (indent 2))
(cl-check-type mode symbol)
(cl-check-type ts-mode symbol)
(setq langs (ensure-list langs))
(setq recipes (ensure-list recipes))
(dolist (m (ensure-list mode))
(add-to-list
'major-mode-remap-defaults
@ -24,7 +29,7 @@ modes that error out instead of failing gracefully."
(funcall
;; Because standard major-mode remapping doesn't offer graceful
;; failure in some cases, I implement it myself:
(cond ((null langs) m)
(cond ((null recipes) m)
((not (fboundp ts-mode))
(message "Couldn't find %S, using %S instead" ts-mode m)
m)
@ -35,19 +40,25 @@ modes that error out instead of failing gracefully."
(cl-every (if ensured?
(doom-rpartial #'treesit-ready-p 'message)
#'treesit-ensure-installed)
(cl-loop for lang in langs
if (listp lang)
collect (car lang)
else collect (list lang))))
(cl-loop for r in recipes
if (listp r)
collect (car r)
else collect (list r))))
ts-mode)
((setq ensured? t)
m))))))))
(with-eval-after-load 'treesit
(dolist (lang langs)
(when (and lang (listp lang))
(cl-destructuring-bind (name &key url rev source-dir cc cpp commit) lang
(setf (alist-get name treesit-language-source-alist)
(list url rev source-dir cc cpp commit)))))))
(dolist (recipe recipes)
(cl-destructuring-bind (name &key url rev source-dir cc cpp commit)
(ensure-list recipe)
(setf (alist-get name treesit-language-source-alist)
(append (list url rev source-dir cc cpp)
;; COMPAT: 31.1 introduced a COMMIT recipe argument. On
;; <=30.x, extra arguments will trigger an arity error
;; when installing grammars.
(if (eq (cdr (func-arity 'treesit--install-language-grammar-1))
'many)
(list commit))))))))
;; ;; HACK: Remove and refactor when `use-package' eager macro expansion is solved or `use-package!' is removed
;; ;;;###autoload