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From: | Stefan Monnier |
Subject: | Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7% |
Date: | Sat, 04 Sep 2021 14:40:16 -0400 |
User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
> Do you have some Lisp to show that invisible text isn't fontified by > jit-lock? src/emacs -Q lisp/subr.el -f outline-minor-mode --eval '(hide-sublevels 1)' then go to the line that says "subr.el ends here" and do M-: (get-text-property (- (point) 10) 'fontified) RET and it will probably say nil. Stefan PS: My own config enables `outline-minor-mode` and calls `hide-sublevels` in a similar way, so I'd notice the performance difference if the whole buffer were fontified ;-)
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