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

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Message #46 received at 65797 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 65797 <at> debbugs.gnu.org, joseph <at> breatheoutbreathe.in
Subject: Re: bug#65797: 29.0.92; func-arity should not return (0 . many)
 with apply-partially
Date: Fri, 08 Sep 2023 21:20:13 +0300

> From: Stefan Monnier <monnier <at> iro.umontreal.ca>
> Cc: Joseph Turner <joseph <at> breatheoutbreathe.in>,  65797 <at> debbugs.gnu.org
> Date: Fri, 08 Sep 2023 11:52:25 -0400
> 
> >> This isn't backwards compatible, is it?
> > Neither is what you propose, AFAIU.  We are in effect changing a
> > public API in incompatible ways.
> 
> Yup, AFAICT there's no way to implement the Texinfo-documented
> behavior reliably.
> 
> So some backward-incompatibility is inevitable, unless we decide to
> stick to the current code to be "bug compatible" :-(

I think one of the alternatives you proposed was backward-compatible
(albeit not very elegant).  So my vote is for that alternative.

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