procyberian/emacs
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Don't update ranges for the whole buffer in treesit--pre-redisplay

Browse source 
* lisp/treesit.el (treesit--pre-redisplay): Only update two
screen-full of text around point.
This commit is contained in:
Yuan Fu 2024-02-18 21:39:31 -08:00
parent f6743099cc
commit 8f260bb93f
No known key found for this signature in database
GPG key ID: 56E19BC57664A442
1 changed files with 9 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
lisp/treesit.el
View file

@ -1382,7 +1382,15 @@ as comment due to incomplete parse tree."
;; `treesit-update-ranges' will force the host language's parser to
;; reparse and set correct ranges for embedded parsers. Then
;; `treesit-parser-root-node' will force those parsers to reparse.
(treesit-update-ranges)
(let ((len (+ (* (window-body-height) (window-body-width)) 800)))
;; FIXME: As a temporary fix, this prevents Emacs from updating
;; every single local parsers in the buffer every time there's an
;; edit. Moving forward, we need some way to properly track the
;; regions which need update on parser ranges, like what jit-lock
;; and syntax-ppss does.
(treesit-update-ranges
(max (point-min) (- (point) len))
(min (point-max) (+ (point) len))))
;; Force repase on _all_ the parsers might not be necessary, but
;; this is probably the most robust way.
(dolist (parser (treesit-parser-list))