GNU bug report logs - #32322
27.0.50; Connect flymake to next-error-function when enabled

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

From: Terje Larsen <terlar <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50; Connect flymake to next-error-function when enabled
Date: Mon, 30 Jul 2018 23:41:43 +0200

I know that some other packages utilize the 'next-error-function' to get
support for 'next-error' and 'previous-error'. I wonder if it would make
sense to set this up by default when the flymake mode is enabled. I have
currently enabled it by:

  (setq next-error-function 'flymake-goto-next-error)

And it seems to work flawlessly.

In GNU Emacs 27.0.50 (build 1, x86_64-apple-darwin13.4.0, NS
appkit-1265.21 Version 10.9.5 (Build 13F1911))
of 2018-05-07 built on builder10-9.local
Windowing system distributor 'Apple', version 10.3.1561
System Description:  Mac OS X 10.13.6

Configured using:
'configure --with-ns '--enable-locallisppath=/Library/Application
Support/Emacs/${version}/site-lisp:/Library/Application
Support/Emacs/site-lisp' --with-modules'

Configured features:
NOTIFY ACL GNUTLS LIBXML2 ZLIB TOOLKIT_SCROLL_BARS NS MODULES THREADS

Important settings:
  value of $LANG: en_SE.UTF-8
  locale-coding-system: utf-8

Major mode: Emacs-Lisp

-- 
// Terje Larsen

Message #8 received at 32322 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Terje Larsen <terlar <at> gmail.com>
Cc: 32322 <at> debbugs.gnu.org
Subject: Re: bug#32322: 27.0.50; Connect flymake to next-error-function when
 enabled
Date: Wed, 18 May 2022 14:14:44 +0200

Terje Larsen <terlar <at> gmail.com> writes:

> I know that some other packages utilize the 'next-error-function' to get
> support for 'next-error' and 'previous-error'. I wonder if it would make
> sense to set this up by default when the flymake mode is enabled. I have
> currently enabled it by:
>
>   (setq next-error-function 'flymake-goto-next-error)
>
> And it seems to work flawlessly.

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

I don't think it would be appropriate for flymake-mode to set that
itself, since that variable is mostly just meant for other
compilation-line major modes to set buffer-locally.  But I can see how
it might be convenient for users that mainly just use flymake and not
the regular `M-x compile', so I've now mentioned this in the
flymake-mode doc string in Emacs 29.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #13 received at 32322 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 32322 <at> debbugs.gnu.org, Terje Larsen <terlar <at> gmail.com>
Subject: Re: bug#32322: 27.0.50; Connect flymake to next-error-function when
 enabled
Date: Wed, 18 May 2022 21:12:03 +0300

>> I know that some other packages utilize the 'next-error-function' to get
>> support for 'next-error' and 'previous-error'. I wonder if it would make
>> sense to set this up by default when the flymake mode is enabled. I have
>> currently enabled it by:
>>
>>   (setq next-error-function 'flymake-goto-next-error)
>>
>> And it seems to work flawlessly.
>
> I don't think it would be appropriate for flymake-mode to set that
> itself, since that variable is mostly just meant for other
> compilation-line major modes to set buffer-locally.  But I can see how
> it might be convenient for users that mainly just use flymake and not
> the regular `M-x compile', so I've now mentioned this in the
> flymake-mode doc string in Emacs 29.

The problem with enabling next-error-function in buffers
where flymake-mode is activated is that there is no evident
visual indication that next-error is used to navigate errors
in the current buffer.  In other modes like compilation
the enabled next-error-function is usually indicated
by the presence of the compilation window with a list of errors
nearby.

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