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diff-mode: Optimize source language syntax highlighting

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* lisp/vc/diff-mode.el (diff--get-revision-properties):
Never pass FILE to 'diff-syntax-fontify-props'; assume that
'vc-find-revision-no-save' has called the major mode function
already (bug#71604).
This commit is contained in:
Dmitry Gutov 2024-06-17 22:51:23 +03:00
parent b26270ae94
commit f7953a0eef
1 changed files with 2 additions and 4 deletions
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6
lisp/vc/diff-mode.el
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@ -2883,9 +2883,6 @@ and the position in MAX."
(buffer (cdr entry)))
(if (buffer-live-p buffer)
(progn
;; Don't re-initialize the buffer (which would throw
;; away the previous fontification work).
(setq file nil)
(setq diff--cached-revision-buffers
(cons entry
(delq entry diff--cached-revision-buffers))))
@ -2905,7 +2902,8 @@ and the position in MAX."
(diff--cache-schedule-clean)
(and buffer
(with-current-buffer buffer
(diff-syntax-fontify-props file text line-nb)))))
;; Major mode is set in vc-find-revision-no-save already.
(diff-syntax-fontify-props nil text line-nb)))))
(defun diff-syntax-fontify-hunk (beg end old)
"Highlight source language syntax in diff hunk between BEG and END.