Re: Use (eval-when-compile 'treesit) to save us from writing declare-function forms

[Eli Zaretskii]

> From: Yuan Fu <casouri@gmail.com>
> Date: Mon, 2 Dec 2024 22:31:48 -0800
> 
> Some of my recent changes to c-ts-mode.el uses some more C treesit functions, 
> and I (again) forgot to add their declare-function forms to c-ts-mode.el, and 
> Andrea has to fix it for me. The main problem for me is that (I think) you 
> don’t get warning for them unless you build a non-tree-sitter build of Emacs. 
> So I’m prone to forgot about them. Also it’s a burden for anyone wanting to 
> use tree-sitter functions.
> 
> treesit.el already has all the declare-function forms, how about we use 
> (eval-when-compile 'treesit) in other files? I believe that should alleviate 
> us from adding those declare-function forms in other files?

I don't understand" c-ts-mode.el already does

  (require 'treesit)

So what would eval-when-compile add to that?