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bug#29220: 26.0.90; eieio-persistent-read fail to restore saved object.

From: Eric Abrahamsen
Subject: bug#29220: 26.0.90; eieio-persistent-read fail to restore saved object.
Date: Sat, 09 Dec 2017 08:59:27 -0800
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

On 12/08/17 12:41 PM, Eli Zaretskii wrote:
>> From: Eric Abrahamsen <address@hidden>
>> Cc: address@hidden (Pierre Téchoueyres),
>>   address@hidden,  Noam Postavsky <address@hidden>,
>>  John Wiegley <address@hidden>, Eli Zaretskii <address@hidden>
>> Date: Tue, 05 Dec 2017 14:58:45 -0800
>> > I think so, but we're pretty late in the pretest, so better ask Eli&John
>> > if they think it's OK for emacs-26.
>> Okay: John and Eli, this patch is to handle changes in object
>> implementation in Emacs 26: they are now implemented with records, which
>> can't be round-tripped with prin1 and read, they have to be written and
>> read specially. The eieio-persistent mechanism handles that, but
>> previously did not look inside hash tables or vectors to see if there
>> were objects in there.
>> That's causing failure in the pcache library, which other libraries
>> depend on. I'm hoping we can sneak this in under the wire so that pcache
>> doesn't fail in Emacs 26.
> Fine with me to put this on emacs-26.

Thanks -- done.

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