GNU bug report logs - #65797
`buffer-match-p` should not use `func-arity`

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Message #100 received at 65797 <at> debbugs.gnu.org (full text, mbox):

From: Philip Kaludercic <philipk <at> posteo.net>
To: Dmitry Gutov <dmitry <at> gutov.dev>
Cc: Joseph Turner <joseph <at> breatheoutbreathe.in>,
 Stefan Monnier <monnier <at> iro.umontreal.ca>, 65797 <at> debbugs.gnu.org
Subject: Re: bug#65797: `buffer-match-p` should not use `func-arity`
Date: Tue, 19 Sep 2023 13:56:54 +0000

Dmitry Gutov <dmitry <at> gutov.dev> writes:

> On 19/09/2023 11:34, Philip Kaludercic wrote:
>>> [ BTW, changing the code to use `&rest args` instead of `&optional arg`
>>>    would help for this, right?  ]
>> How come?
>
> In project.el buffer-match-p would be called without an extra
> argument, so the predicates would be called without an extra argument
> as well.
>
> That should take care of that compatibility, I think.

But what does that have to do with &rest vs &optional?

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