GNU bug report logs - #28645
26.0.50; semantic-ia-fast-jump jumps to a random place in buffer

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#28645: closed (26.0.50; semantic-ia-fast-jump jumps to a
 random place in buffer)
Date: Sat, 30 Sep 2017 14:20:01 +0000

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Your message dated Sat, 30 Sep 2017 16:19:37 +0200
with message-id <49403a5a-e589-f534-053c-7bde79f0de8d <at> yandex.ru>
and subject line Re: bug#28645: 26.0.50; semantic-ia-fast-jump jumps to a random place in buffer
has caused the debbugs.gnu.org bug report #28645,
regarding 26.0.50; semantic-ia-fast-jump jumps to a random place in buffer
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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28645: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=28645
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From: Constantine <hi-angel <at> yandex.ru>
To: bug-gnu-emacs <at> gnu.org
Subject: 26.0.50; semantic-ia-fast-jump jumps to a random place in buffer
Date: Fri, 29 Sep 2017 16:23:54 +0300

When declaration is in another buffer, semantic-ia-fast-jump often
jumps to this buffer, but to incorrect line. However if the
declaration is in the same buffer where the command was used, it always
— as far as I've seen — jumps to the correct line.

Steps to reproduce:

1. Create the following 2 files with the following content:
    $ grep -n "" myfunc.h test.cpp
    myfunc.h:1:void myfunc1() {
    myfunc.h:2:}
    myfunc.h:3:void myfunc2() {
    myfunc.h:4:}
    test.cpp:1:#include "myfunc.h"
    test.cpp:2:
    test.cpp:3:int main() {
    test.cpp:4:     myfunc1();
    test.cpp:5:     myfunc2();
    test.cpp:6:}
2. Run emacs -Q test.cpp
3. Enable `M-x semantic-mode`
4. Put cursor into "myfunc2", and type `M-x semantic-ia-fast-jump`
    (you'll see it jumped to the correct declaration at myfunc.h file)
5. Use `C-x b RET` to switch back to test.cpp
6. Put cursor into "myfunc1", and type `M-x semantic-ia-fast-jump`

Result: it jumped to "myfunc2" declaration, not to "myfunc1" as it ought to.

I also want to note that though ATM I am using emacs-git, I've seen the
problem for don't remember how long, just didn't report.

[Message part 3 (message/rfc822, inline)]

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: martin rudalics <rudalics <at> gmx.at>, Constantine <hi-angel <at> yandex.ru>,
 28645-done <at> debbugs.gnu.org
Subject: Re: bug#28645: 26.0.50; semantic-ia-fast-jump jumps to a random place
 in buffer
Date: Sat, 30 Sep 2017 16:19:37 +0200

On 9/29/17 8:18 PM, martin rudalics wrote:
>  > +  (let (switch-to-buffer-preserve-window-point)
>  > +    (switch-to-buffer (current-buffer)))
> 
> I think (pop-to-buffer-same-window (current-buffer)) should be used
> instead.

Done.

Thanks all!

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