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

[Andrea Corallo <acorallo@gnu.org>]

Dmitry Gutov <dmitry@gutov.dev> writes:

> On 04/12/2024 20:19, Yuan Fu wrote:
>> When Emacs is built without tree-sitter, none of the treesit.c functions are available (except for treesit-ready-p)
>
> Have we considered having all of those functions defined but doing
> nothing in that case? Alias them to 'ignore' or something that raises
> an error.
>
> I think then we won't have to maintain these 'declare-function' lists
> in every package that depends on treesit.c.

The suggestion of having the C functions defined to nops when
HAVE_TREE_SITTER is not defined is cleaner in principle, but I think
there are two downsides:

- We don't tipically do it this way, so it would be an exception

- Also we should do it for all the functions in treesit.c, otherwise we
  don't solve the original problem of introducing warnings by mistake on
  non treesit builds.

  Andrea