GNU bug report logs - #17893
24.4.50; (error "Marker does not point anywhere")

Previous Next

Full log

Message #126 received at 17893 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> suse.de>
To: martin rudalics <rudalics <at> gmx.at>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 17893 <at> debbugs.gnu.org, charles <at> aurox.ch,
 monnier <at> IRO.UMontreal.CA
Subject: Re: bug#17893: 24.4.50; (error "Marker does not point anywhere")
Date: Mon, 27 Nov 2017 10:54:21 +0100

On Nov 27 2017, martin rudalics <rudalics <at> gmx.at> wrote:

> Note that I've been referring only to your earlier
>
>   The problem I was thinking of is when buffer-local variables in buffer
>   A hold markers whose buffer is A; then we clone buffer B from A, and
>   then we kill buffer A.  Now the markers in the cloned buffer point to
>   a dead buffer (or actually point nowhere).
>
> I'm not sure why this can be a problem because when we delete a base
> buffer then the manual says that
>
>   Killing the base buffer effectively kills the indirect buffer in that
>   it cannot ever again be the current buffer.
>
> but in fact we kill any indirect buffer before killing its base buffer.
> Or I'm misreading the code of `kill-buffer'

Indirect buffer != cloned buffer.  An indirect buffer is created by
make-indirect-buffer and shares the buffer text with the parent buffer.
A cloned buffer is created by clone-buffer, and is a new buffer
independent from its origin, with its own buffer text.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab <at> suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.