GNU bug report logs - #68956
M-q → Invalid predicate, see ‘treesit-thing-settings’ for valid forms for a predicate: nil

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Message #11 received at 68956 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Dominique Quatravaux <dominique <at> quatravaux.org>,
 Yuan Fu <casouri <at> gmail.com>
Cc: 68956 <at> debbugs.gnu.org
Subject: Re: bug#68956: M-q → Invalid predicate, see
 ‘treesit-thing-settings’ for valid forms for a
 predicate: nil
Date: Sat, 10 Feb 2024 10:44:01 +0200

> From: Dominique Quatravaux <dominique <at> quatravaux.org>
> Date: Tue, 6 Feb 2024 18:32:27 +0100
> 
> When invoking `prog-fill-reindent-defun' from inside a bash-ts-mode buffer, an exception (regardless of where
> point is), an error is raised that reads
> 
> Invalid predicate, see ‘treesit-thing-settings’ for valid forms for a predicate: nil
> 
> Investigation reveals that `prog-fill-reindent-defun' calls `treesit-node-match-p' with 'text as the second
> argument, which can only succeed if `(assq 'text (assq 'bash treesit-thing-settings))' is non-nil; whereas the
> corresponding setting for `treesit-thing-settings' prepared by `bash-ts-mode', doesn't provide a value for 'text
> (only for 'sentence).
> 
> I had success applying the following workaround:
> 
> (advice-add 'bash-ts-mode
>             :after (lambda (&rest ignored)
>                      (when-let ((bash-things (assq 'bash treesit-thing-settings)))
>                        (setf (alist-get 'text (cdr bash-things)) '(sentence)))))
> 
> Now M-q does the right thing for me everywhere in bash-ts-mode.

Yuan, any comments or ideas?

Thanks.

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