Re: Tree-sitter api

[Eli Zaretskii]

> From: Yuan Fu <casouri@gmail.com>
> Date: Wed, 15 Sep 2021 08:56:18 -0700
> Cc: Tuấn-Anh Nguyễn <ubolonton@gmail.com>,
>  Theodor Thornhill <theo@thornhill.no>,
>  Clément Pit-Claudel <cpitclaudel@gmail.com>,
>  Emacs developers <emacs-devel@gnu.org>,
>  Stefan Monnier <monnier@iro.umontreal.ca>,
>  stephen_leake@stephe-leake.org
> 
> > I don't understand what you are saying here.  Why would major mode
> > programmers need to know the correct <lang> name?  The TS facilities
> > we will have in Emacs will be language-agnostic, right?  For example,
> > to correctly indent a line of code, the major mode will call some
> > hypothetical tree-sitter-get-indentation function, and that function
> > will work in any major mode, provided that the major mode told TS to
> > load the support for the programming language of the buffer.  Right?
> 
> Now I see why there is confusion. Tree-sitter only provide a “primitive” 
> feature: the concert syntax tree, and it is not language-agnostic. You don’t 
> get indentation for free, unfortunately.

I wasn't talking about tree-sitter itself, I was talking about the
facilities Emacs will provide based on TS.  There will be in Emacs a
function to calculate indentation using TS, right?  And that function
will be language-agnostic, like indent-line-function is, right?