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Re: Bug in orgalist mode's advice on indent-according-to-mode
From: |
Eric Abrahamsen |
Subject: |
Re: Bug in orgalist mode's advice on indent-according-to-mode |
Date: |
Thu, 28 Apr 2022 08:39:57 -0700 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Tim Cross <theophilusx@gmail.com> writes:
> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
>> In Emacs commit f596f0db82c0b1ff3fe8e8f1d8b07d2fe7504ab6, from Nov 2021,
>> the function `indent-according-to-mode' was given an optional
>> inhibit-widen argument. That argument being passed causes orgalist's
>> advice to fail, as the lambda doesn't accept any additional arguments.
>> One way to fix it would be like that:
>>
>> (unless (advice-member-p 'orgalist-fix-bug:31361 'indent-according-to-mode)
>> (advice-add 'indent-according-to-mode
>> :around (lambda (old &optional inhibit-widen)
>> "Workaround bug#31361."
>> (or (orgalist--indent-line)
>> (let ((indent-line-function
>> (advice--cd*r indent-line-function)))
>> (funcall old inhibit-widen))))
>> '((name . orgalist-fix-bug:31361)))))
>>
>> Or I suppose a more future-proof approach might be to use a &rest and
>> then `apply' instead of `funcall'.
>>
>
> A better solution would probably be to fix this without using
> add-advice. While advice can be a useful escape hatch, it really is best
> avoided, especially given that it doesn't always play nice with lexical
> binding. I note this one is also calling an undocumented internal
> function.
In principle I quite agree! But orgalist is basically built on top of
add-function/advice-add, so I didn't think that was an option. And
also assumed that, given what Orgalist is trying to do, there isn't a
cleaner solution right now.