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bug#59662: 29.0.50; [PATCH] Add treesit--indent-defun
From: |
Eli Zaretskii |
Subject: |
bug#59662: 29.0.50; [PATCH] Add treesit--indent-defun |
Date: |
Tue, 29 Nov 2022 14:01:54 +0200 |
> Cc: eliz@gnu.org, casouri@gmail.org
> From: Theodor Thornhill <theo@thornhill.no>
> Date: Mon, 28 Nov 2022 20:32:01 +0100
>
> I've added a function to treesit.el, for use in
> treesit-major-mode-setup. Because the treesit-defun-type-regexp gives
> us "defuns" for free, we can set fill-paragraph-function to this new
> function, thus enabling quick formatting, and some sensible default for
> fill-paragraph. It aims to mirror c-indent-defun.
>
> I think this is a nice way to get this functionality for free, but I'm
> not 100% whether this is considered ok or not.
Sounds good, but why did you think it wouldn't be OK? Anything here that
doesn't meet the eye?
> An alternative could be to add a 'treesit-mode-map' where we can
> auto-enable such constructs.
I think this is less desirable.
Yuan, WDYT?
> @@ -1698,7 +1713,10 @@ treesit-major-mode-setup
> ;; Navigation.
> (when treesit-defun-type-regexp
> (setq-local beginning-of-defun-function #'treesit-beginning-of-defun)
> - (setq-local end-of-defun-function #'treesit-end-of-defun)))
> + (setq-local end-of-defun-function #'treesit-end-of-defun))
> + ;; Filling
> + (when (and treesit-defun-type-regexp treesit-simple-indent-rules)
> + (setq-local fill-paragraph-function #'treesit--indent-defun)))
I'm a bit confused: if the function's name is treesit--indent-defun, and it
uses treesit-indent-region to do its job, why do we assign it to
fill-paragraph-function, which is supposed to _fill_, not to _indent_?