GNU bug report logs - #29220
26.0.90; eieio-persistent-read fail to restore saved object.

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Message #62 received at 29220 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Pierre Téchoueyres <pierre.techoueyres <at> free.fr>
Cc: Eric Abrahamsen <eric <at> ericabrahamsen.net>, 29220 <at> debbugs.gnu.org,
 Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: Re: bug#29220: 26.0.90;
 eieio-persistent-read fail to restore saved object.
Date: Tue, 28 Nov 2017 16:52:26 -0500

On Tue, Nov 28, 2017 at 4:39 PM, Pierre Téchoueyres
<pierre.techoueyres <at> free.fr> wrote:
> Noam Postavsky <npostavs <at> users.sourceforge.net> writes:
>>> I've tried to dive into print.c but I don't understand how you return
>>> from print_object, when you're on an hash-table to obtain the vector
>>> with an eieio-class-tag--<class> (as in 25.3) ?
>>>
>>> Can anyone tell me how this work in 25.3 ?
>>
>> Nothing has changed in print.c in this respect.  In 25.3, objects are
>> vectors, and class tags are symbols.  In 26, objects are records and
>> class tags are eieio--class records.  As a result, they print
>> differently.
>
> I trust you, but that's not the answer I expected, sorry.

When you say "that's not the answer I expected", do you mean that my
answer didn't sufficiently explain to you why things worked correctly
in Emacs 25.3 and not in Emacs 26? Or do you mean that you would
expect Emacs 26 to work differently (i.e., in a way that doesn't break
things)?

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