GNU bug report logs - #42039
27.0.91; (posn-x-y (posn-at-point)) inconsistent with display-line-numbers-mode

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: 42039 <at> debbugs.gnu.org
Subject: bug#42039: 27.0.91; (posn-x-y (posn-at-point)) inconsistent with display-line-numbers-mode
Date: Fri, 26 Jun 2020 15:04:22 +0300

> From: Dmitry Gutov <dgutov <at> yandex.ru>
> Date: Thu, 25 Jun 2020 16:29:21 +0300
> 
> 1. Enable display-line-numbers-mode.
> 2. Move point to the beginning of some line.
> 3. Evaluate (posn-x-y (posn-at-point))
> 
> => The value in CAR will be > 0 (to account for the columns taken by 
> d-l-n-m).
> 
> 4. Do the same thing on a line that belongs to an overlay. For example,
> the overlay in the bug reporting buffer (move point to the line with
> "This bug report...").
> 5. The return value will be like (0 . 180).
> 
> The expected behavior: the column should still account for the offset by
> the d-l-n-m.
> 
> I'd really like to see this fixed in Emacs, it makes positioning of
> popups unpredictable when display-line-numbers-mode is enabled: 
> https://github.com/company-mode/company-quickhelp/issues/106

Your wish has been granted: this should now be fixed on the emacs-27
branch.

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