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

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From: Yuan Fu <casouri <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 68956 <at> debbugs.gnu.org
Subject: bug#68956: M-q → Invalid predicate, see  ‘treesit-thing-settings’ for valid forms for a  predicate: nil
Date: Tue, 9 Apr 2024 23:03:21 -0700

[Adding the bug tracker back, forgot to replay-all]

> On Apr 8, 2024, at 8:42 PM, Yuan Fu <casouri <at> gmail.com> wrote:
> 
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
>>> Cc: 68956 <at> debbugs.gnu.org
>>> Date: Sat, 10 Feb 2024 10:44:01 +0200
>>> From: Eli Zaretskii <eliz <at> gnu.org>
>>> 
>>>> 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.
> 
> Sorry for the delay. Dominique, what version are you using? I can see
> that this is fixed on master[1], but not on emacs-29, perhaps due to
> the size of the change.
> 
> [1] b392d05089014ac6d41e35a016d46f496964f879
> 
> Yuan

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