> From: Tuấn Anh Nguyễn <address@hidden>
> Date: Wed, 1 Apr 2020 00:07:27 +0700
>
> > xdisp.c comes to mind, obviously.
>
> On my machine, a 3.39 GHz Intel Core i7:
>
> (0.150791 0 0.0) ; 1 full parse
How did you submit xdisp.c to the parser?
(with-current-buffer "xdisp.c"
(let ((language (tree-sitter-require 'c))
(parser (ts-make-parser)))
(ts-set-language parser language)
(garbage-collect)
(message "%s" (benchmark-run (ts-parse parser #'ts-buffer-input nil)))))
In any case, IIUC, the first time a buffer needs to be displayed, we
need to wait for these 150 msec? That's annoyingly long (and I
suspect in real Emacs usage will be significantly longer, due to
memory allocation, encoding, etc.).
Real usage with "xdisp.c":
(define-advice tree-sitter--do-parse (:around (f &rest args) benchmark)
(message "%s" (benchmark-run (apply f args))))
(0.257998 1 0.13326100000000096)
So yes, direct access to buffer's text from dynamic modules would be nice.
--
Tuấn-Anh Nguyễn
Software Engineer