GNU bug report logs - #78367
31.0.50; Eglot: incoming call trees, wrong positions

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Message #8 received at 78367 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Gerd Möllmann <gerd.moellmann <at> gmail.com>,
 João Távora <joaotavora <at> gmail.com>
Cc: 78367 <at> debbugs.gnu.org
Subject: Re: bug#78367: 31.0.50; Eglot: incoming call trees, wrong positions
Date: Sun, 11 May 2025 09:02:04 +0300

> From: Gerd Möllmann <gerd.moellmann <at> gmail.com>
> Date: Sun, 11 May 2025 07:29:30 +0200
> 
> I am using Eglot/clangd on emcas.git again.
> 
> Navigate to insdel.c, function insert_and_inherit, C-u M-x
> eglot-show-call-hierarchy RET and choose incoming call trees. The
> resulting buffer looks like
> 
> [-]  ∘ insert_and_inherit
>  ├─[+]  ◀ Finsert_and_inherit
>  ├─[+]  ◀ Finsert_char
>  └─[+]  ◀ internal_self_insert
> 
> Clicking on Finsert_and_inherit takes me here:
> 
> insdel.c:
>  1389   if (run_mod_hooks)
>  1390     {
>  1391       ptrdiff_t range_length = to - from;
>  1392       prepare_to_modify_buffer (from, to, &from);
>  1393       to = from + range_length;
>  1394     }
> 
> Clicking on internal_self_insert
> 
> insdel.c:
>   469      * amount at least proportional to the size of the buffer.
>   470      * On my test (a 223.9MB zip file on a Thinkpad T61):
>   471      * With /5    =>  24s
>   472      * With /32   =>  25s
>   473      * With /64   =>  26s
>   474      * With /128  =>  28s
>   475      * With /1024 =>  51s
> 
> and so on.
> 
> (BTW, eglot-supplements' call trees list all call sites, both in
> incoming and outgoing call trees. I find that pretty useful.
> 
> - insert_and_inherit insdel.c:582
>   + internal_self_insert internal_self_insert:471
>   + internal_self_insert internal_self_insert:475
>   + Finsert_and_inherit Finsert_and_inherit:1392
>   + Finsert_char Finsert_char:1503
>   + Finsert_char Finsert_char:1509
> )
> 
> In GNU Emacs 31.0.50 (build 1, aarch64-apple-darwin24.4.0) of 2025-05-10
>  built on pro2

Adding João to the discussion.

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