GNU bug report logs - #60427
Emacs-29, c++-ts-mode: typing "char" into an empty buffer causes an exception in redisplay.

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From: Yuan Fu <casouri <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Alan Mackenzie <acm <at> muc.de>, 60427 <at> debbugs.gnu.org
Subject: bug#60427: Emacs-29, c++-ts-mode: typing "char" into an empty buffer causes an exception in redisplay.
Date: Sat, 31 Dec 2022 14:06:20 -0800

> On Dec 31, 2022, at 3:05 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:
> 
>> Date: Sat, 31 Dec 2022 10:29:21 +0000
>> Cc: Eli Zaretskii <eliz <at> gnu.org>, 60427 <at> debbugs.gnu.org, acm <at> muc.de
>> From: Alan Mackenzie <acm <at> muc.de>
>> 
>> As you mentioned, the backtrace now looks a bit different, namely:
>> 
>> Error: treesit-query-error ("Node type error at" 195 "[\"break\" \"case\" \"co
> 
> Yuan, what is "195" in this error message?  According to the source
> code, its is "error_offset+1", but what is that?  If it's a buffer
> position, then how come we see 195 when the buffer has only "char" in
> it?

It is the position of the error in the query string. Any suggestion to make that clearer in the message? Maybe “Node type error in the query string at”?

Yuan

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