bug#72069: [PATCH] Move configuration of auto-mode-alist out of js-ts-mode

[Stefan Kangas]

Damien Cassou <damien@cassou.me> writes:

> The current version of the code requires the `js-ts-mode' function to
> have already been executed for `auto-mode-alist' to contain an entry for
> ".jsx" files. The patch makes sure that `auto-mode-alist' is updates
> when js.el is loaded.

Thanks for the patch.

What about js-mode?  Shouldn't that be used out-of-the-box for these files?

>>From 7fc9bb52a9f51a8caf4d5d016dc8a8812dd5c6a3 Mon Sep 17 00:00:00 2001
> From: Damien Cassou <damien@cassou.me>
> Date: Fri, 12 Jul 2024 09:50:45 +0200
> Subject: [PATCH] Move configuration of auto-mode-alist out of js-ts-mode
>
> * lisp/progmodes/js.el (js-ts-mode): Remove configuration of
> auto-mode-alist.
> ---
>  lisp/progmodes/js.el | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/lisp/progmodes/js.el b/lisp/progmodes/js.el
> index f8140c14a49..c3e6077a352 100644
> --- a/lisp/progmodes/js.el
> +++ b/lisp/progmodes/js.el
> @@ -3957,10 +3957,10 @@ js-ts-mode
>                                          "method_definition")
>                                  eos)
>                     nil nil)))
> -    (treesit-major-mode-setup)
> +    (treesit-major-mode-setup)))
>
> -    (add-to-list 'auto-mode-alist
> -                 '("\\(\\.js[mx]\\|\\.har\\)\\'" . js-ts-mode))))
> +(add-to-list 'auto-mode-alist
> +             '("\\(\\.js[mx]\\|\\.har\\)\\'" . js-ts-mode))

Shouldn't this be wrapped in

    (if (treesit-ready-p js) ...)

?

>
>  (derived-mode-add-parents 'js-ts-mode '(js-mode))