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master 3fcbcc61db: js.el: Tweak last change
From: |
Stefan Monnier |
Subject: |
master 3fcbcc61db: js.el: Tweak last change |
Date: |
Sat, 13 Aug 2022 11:18:49 -0400 (EDT) |
branch: master
commit 3fcbcc61db31e316115364cf6275effcbfdebc6f
Author: Stefan Monnier <monnier@iro.umontreal.ca>
Commit: Stefan Monnier <monnier@iro.umontreal.ca>
js.el: Tweak last change
* lisp/progmodes/js.el (js-json-mode): Use a function as value of
`syntax-propertize-function`.
---
lisp/progmodes/js.el | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/lisp/progmodes/js.el b/lisp/progmodes/js.el
index d2c24a7581..efad3b52aa 100644
--- a/lisp/progmodes/js.el
+++ b/lisp/progmodes/js.el
@@ -3490,9 +3490,10 @@ This function is intended for use in
`after-change-functions'."
;;;###autoload
(define-derived-mode js-json-mode js-mode "JSON"
- ;; JSON files can be big. Speed up syntax-ppss.
- (setq-local syntax-propertize-function nil)
- (setq-local js-enabled-frameworks nil))
+ (setq-local js-enabled-frameworks nil)
+ ;; Speed up `syntax-ppss': JSON files can be big but can't hold
+ ;; regexp matchers nor #! thingies (and `js-enabled-frameworks' is nil).
+ (setq-local syntax-propertize-function #'ignore))
;; Since we made JSX support available and automatically-enabled in
;; the base `js-mode' (for ease of use), now `js-jsx-mode' simply
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