GNU bug report logs - #63487
30.0.50; C-M-u does not work correctly in c-ts-mode

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Daniel Martín <mardani29 <at> yahoo.es>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.0.50; C-M-u does not work correctly in c-ts-mode
Date: Sat, 13 May 2023 19:37:39 +0200

Steps to reproduce:

emacs -Q
C-x b sample.c RET
M-x c-ts-mode
Write the following code:

int foo(int a, int b) {
  
}

With point inside the function, press C-M-u.

Actual result:

Emacs beeps and shows "At top level".

Expected result:

Point goes to the open { instead.

Message #8 received at 63487 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Daniel Martín <mardani29 <at> yahoo.es>, Yuan Fu
 <casouri <at> gmail.com>
Cc: 63487 <at> debbugs.gnu.org
Subject: Re: bug#63487: 30.0.50; C-M-u does not work correctly in c-ts-mode
Date: Thu, 18 May 2023 14:12:53 +0300

> Date: Sat, 13 May 2023 19:37:39 +0200
> From:  Daniel Martín via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
> 
> 
> Steps to reproduce:
> 
> emacs -Q
> C-x b sample.c RET
> M-x c-ts-mode
> Write the following code:
> 
> int foo(int a, int b) {
>   
> }
> 
> With point inside the function, press C-M-u.
> 
> Actual result:
> 
> Emacs beeps and shows "At top level".
> 
> Expected result:
> 
> Point goes to the open { instead.

I hope Yuan will look into this soon.

Message #13 received at 63487-done <at> debbugs.gnu.org (full text, mbox):

From: Yuan Fu <casouri <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 63487-done <at> debbugs.gnu.org,
 Daniel Martín <mardani29 <at> yahoo.es>
Subject: Re: bug#63487: 30.0.50; C-M-u does not work correctly in c-ts-mode
Date: Fri, 19 May 2023 00:23:11 -0700

> On May 18, 2023, at 4:12 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:
> 
>> Date: Sat, 13 May 2023 19:37:39 +0200
>> From:  Daniel Martín via "Bug reports for GNU Emacs,
>> the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
>> 
>> 
>> Steps to reproduce:
>> 
>> emacs -Q
>> C-x b sample.c RET
>> M-x c-ts-mode
>> Write the following code:
>> 
>> int foo(int a, int b) {
>> 
>> }
>> 
>> With point inside the function, press C-M-u.
>> 
>> Actual result:
>> 
>> Emacs beeps and shows "At top level".
>> 
>> Expected result:
>> 
>> Point goes to the open { instead.
> 
> I hope Yuan will look into this soon.

Thanks for the report. This is due to treesit-forward-sexp not signaling scan-error when it should. I pushed a fix for it.

Yuan

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