Re: Call for volunteers: add tree-sitter support to major modes

[Eli Zaretskii]

> From: Yuan Fu <casouri@gmail.com>
> Date: Sun, 9 Oct 2022 21:05:09 -0700
> Cc: Eli Zaretskii <eliz@gnu.org>,
>  emacs-devel@gnu.org
> 
> > +
> > +(defun js--treesit-enable ()
> > +  (unless (and (treesit-can-enable-p)
> > +               (treesit-language-available-p 'javascript))
> > +    (error "Tree sitter isn't available"))
> > 
> > I don't think we should error here, I'd displaying a message instead.
> 
> Actually we should also fall back to non-tree-sitter if the conditions aren’t 
> met.

Automatically and silently?  I don't think so.  The user should know
the knob they pressed didn't work.