From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: victorhge@gmail.com, npostavs@gmail.com, 30823@debbugs.gnu.org
Subject: bug#30823: 25.3; modification-hooks of overlays are not run in some cases
Date: Sun, 19 Aug 2018 17:46:55 +0300 [thread overview]
Message-ID: <834lfqfm74.fsf@gnu.org> (raw)
In-Reply-To: <jwvefev10ki.fsf-monnier+emacsbugs@gnu.org> (message from Stefan Monnier on Sat, 18 Aug 2018 23:48:02 -0400)
> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: Noam Postavsky <npostavs@gmail.com>, victorhge@gmail.com,
> 30823@debbugs.gnu.org
> Date: Sat, 18 Aug 2018 23:48:02 -0400
>
> > Can we turn the table and ask whether it makes sense to delete an
> > overlay from the modification hooks of that same overlay?
>
> Yes, it very much does make sense: e.g. you want to keep track of
> a "region unmodified" status, so you place an overlay over that region
> with a modification hook that sets a variable to nil to indicate that
> the region was modified, and once that is done there's no point in
> keeping the overlay any more so you can delete it immediately from that
> modification-hook.
I see that I tried too hard to be gentle, and that must have made my
question unclear, because that's not what I was asking. I was asking
whether we want to support code which does this, because maybe it is
unreasonable to delete an overlay from within its modification hook.
next prev parent reply other threads:[~2018-08-19 14:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-15 4:15 bug#30823: 25.3; modification-hooks of overlays are not run in some cases Ren Victor
2018-03-15 6:00 ` Eli Zaretskii
2018-03-15 7:29 ` Ren Victor
2018-03-31 13:51 ` Noam Postavsky
2018-08-17 20:52 ` Noam Postavsky
2018-08-18 6:49 ` Eli Zaretskii
2018-08-19 3:48 ` Stefan Monnier
2018-08-19 14:46 ` Eli Zaretskii [this message]
2018-08-19 15:43 ` Stefan Monnier
2018-08-19 16:13 ` Eli Zaretskii
2018-08-20 3:02 ` Richard Stallman
2018-08-20 16:37 ` Eli Zaretskii
2018-08-19 20:46 ` Stefan Monnier
2018-08-20 16:34 ` Eli Zaretskii
2018-08-23 12:13 ` Noam Postavsky
2018-08-23 13:57 ` Eli Zaretskii
2018-08-31 3:14 ` Noam Postavsky
2018-08-31 14:25 ` Eli Zaretskii
2018-09-01 16:38 ` Noam Postavsky
2018-09-11 11:59 ` Eli Zaretskii
2018-09-13 1:34 ` Noam Postavsky
2018-09-13 13:43 ` Eli Zaretskii
2018-09-14 12:03 ` Noam Postavsky
2018-09-15 9:23 ` Eli Zaretskii
2018-09-15 14:10 ` Noam Postavsky
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