bug#60953: The :match predicate with large regexp in tree-sitter font-lock seems inefficient

[Dmitry Gutov]

On 26/01/2023 09:17, Yuan Fu wrote:
> If anything, the :pred predicates should be more expensive, since they execute 
> lisp functions and conses tree-sitter nodes into lisp objects.

Doesn't the :match predicate "cons tree-sitter nodes into lisp objects"?

IIUC the list of captures is produced inside treesit-query-capture 
exactly the same way before the predicates are processed -- whether they 
are :pred, or :match, or a combination.

But indeed, I (and most other users) would expect :match to be faster 
than :pred if the predicate does a regexp check anyway. That's the 
essence of this bug report.