GNU bug report logs - #25088
25.1; feature-unload and reload of cl-defstruct fails

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From: Eli Zaretskii <eliz <at> gnu.org>
To: npostavs <at> users.sourceforge.net, Stefan Monnier <monnier <at> iro.umontreal.ca>, Dmitry Gutov <dgutov <at> yandex.ru>
Cc: 25088 <at> debbugs.gnu.org
Subject: bug#25088: 25.1; feature-unload and reload of cl-defstruct fails
Date: Fri, 09 Dec 2016 10:22:58 +0200

> From: npostavs <at> users.sourceforge.net
> Cc: 25088 <at> debbugs.gnu.org
> Date: Fri, 09 Dec 2016 00:08:28 -0500
> 
> > If this means there could be another, safer way of fixing this, please
> > show the details.
> 
> Not sure how much safer this is, I think we would have to record the
> which symbol plists are being modified during `load' so that
> `unload-feature' could find them in `load-history' and reverse them
> along with functions definitions.  This would get rid of the
> compiler-macro entries that were added to cl-defstruct accessor function
> symbols, and so they would load successfully the second time round just
> like the first (presumably).

It could be safer because it doesn't change cl-defstruct.  But it's
hard to tell without seeing an implementation.

What do others think?  Is the patch proposed by Noam safe enough for
the release branch?  Stefan?  Dmitry?

Thanks.

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