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bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return val
From: |
Ihor Radchenko |
Subject: |
bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value |
Date: |
Sun, 06 Nov 2022 07:04:54 +0000 |
Eli Zaretskii <eliz@gnu.org> writes:
>> The common feature of all the failing tests is usage of overlays-in and
>> expecting certain order of overlays in its return value. The order is
>> changed compared to Emacs 28.
>>
>> I consider this an Emacs bug.
>
> I'm not sure we want to keep the old order (which AFAIU was the side
> effect of the implementation), nor become committed to a specific
> order. Sorting overlays is a slowdown, and not every application
> cares about the order. The ones that do care can sort the overlays in
> the order they want.
>
> Or maybe I'm missing something: can you explain why the order matters
> in a couple of specific examples from Org?
You are right. `overlays-in' docstring does not give any promises.
It is not really a big deal for Org as well (can as well sort the return
value).
The only thing that could be useful on Emacs side is explicitly stating
in the `overlays-in' docstring that overlay list may be in arbitrary
order.
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Ihor Radchenko, 2022/11/05
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Eli Zaretskii, 2022/11/06
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value,
Ihor Radchenko <=
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Stefan Monnier, 2022/11/10
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Dmitry Gutov, 2022/11/10
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Stefan Monnier, 2022/11/10
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Dmitry Gutov, 2022/11/10
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Stefan Monnier, 2022/11/10
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Dmitry Gutov, 2022/11/10
- bug#59067: 29.0.50; Exexpected overlay order in `overlays-in' return value, Stefan Monnier, 2022/11/10