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; * src/treesit.c: Add comment to explain design decisions.

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Yuan Fu 2022-06-15 12:15:24 -07:00
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@ -89,6 +89,14 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
- lisp/emacs-lisp/cl-preloaded.el & data.c & lisp.h for parser and
node type.
We don't parse at every keystroke. Instead we only record the
changes at each keystroke, and only parse when requested. It is
possible that lazy parsing is worse: instead of dispersed little
pauses, now you have less frequent but larger pauses. I doubt
there will be any perceived difference, as the lazy parsing is
going to be pretty frequent anyway. Also this (lazy parsing) is
what the mailing list guys wanted.
Because it is pretty slow (comparing to other tree-sitter
operations) for tree-sitter to parse the query and produce a query
object, it is very wasteful to reparse the query every time