GNU bug report logs - #24671
java-mode confused by non-trivial generics

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 24671 in the body.
You can then email your comments to 24671 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

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

From: Daniel Colascione <dancol <at> dancol.org>
To: bug-gnu-emacs <at> gnu.org
Subject: java-mode confused by non-trivial generics
Date: Tue, 11 Oct 2016 17:23:56 -0700

For the following code

    class Foo {
        public List<Class<? extends Bar<? extends Qux>>> getBars() {
            return null;
        }
    }

I expect the `<' and `>' to be assigned paren syntax, but they are not. Emacs
is latest master.

Message #8 received at 24671 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Daniel Colascione <dancol <at> dancol.org>
Cc: 24671 <at> debbugs.gnu.org
Subject: Re: bug#24671: java-mode confused by non-trivial generics
Date: Sat, 27 Jul 2019 16:01:48 +0200

Daniel Colascione <dancol <at> dancol.org> writes:

> For the following code
>
>     class Foo {
>         public List<Class<? extends Bar<? extends Qux>>> getBars() {
>             return null;
>         }
>     }
>
> I expect the `<' and `>' to be assigned paren syntax, but they are not. Emacs
> is latest master.

When I try this in Emacs 27, the < and > characters are fontied the same
way as the parentheses in the example, so I'm guessing that this has
been fixed and is closing this bug report.  If you're still seeing this
problem, please reopen.

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

Message #13 received at 24671 <at> debbugs.gnu.org (full text, mbox):

From: Alan Mackenzie <acm <at> muc.de>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 24671 <at> debbugs.gnu.org, Daniel Colascione <dancol <at> dancol.org>
Subject: Re: bug#24671: java-mode confused by non-trivial generics
Date: 27 Jul 2019 14:14:24 -0000

Hello, Lars

In article <mailman.2400.1564236126.2688.bug-gnu-emacs <at> gnu.org> you wrote:
> Daniel Colascione <dancol <at> dancol.org> writes:

>> For the following code
>>
>>     class Foo {
>>         public List<Class<? extends Bar<? extends Qux>>> getBars() {
>>             return null;
>>         }
>>     }
>>
>> I expect the `<' and `>' to be assigned paren syntax, but they are not. Emacs
>> is latest master.

> When I try this in Emacs 27, the < and > characters are fontied the same
> way as the parentheses in the example, so I'm guessing that this has
> been fixed and is closing this bug report.  If you're still seeing this
> problem, please reopen.

I think the bug should be reopened: it was about the syntax on < and >
rather than the fontification.

If you put point in front of any of the <s, you should be able to
execute C-M-f, moving to the matching >.

This doesn't happen in the current scenario because the closing >s,
written without intervening spaces, get confused with the Java shift
right operator ">>>".  If you insert a space into that triplet, the
syntax comes back again.

This will be easy to fix.

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

-- 
Alan Mackenzie (Nuremberg, Germany).

Message #16 received at 24671 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Alan Mackenzie <acm <at> muc.de>
Cc: 24671 <at> debbugs.gnu.org, Daniel Colascione <dancol <at> dancol.org>
Subject: Re: bug#24671: java-mode confused by non-trivial generics
Date: Sat, 27 Jul 2019 17:11:23 +0200

Alan Mackenzie <acm <at> muc.de> writes:

> I think the bug should be reopened: it was about the syntax on < and >
> rather than the fontification.
>
> If you put point in front of any of the <s, you should be able to
> execute C-M-f, moving to the matching >.

Oh, I see; reopening.

> This doesn't happen in the current scenario because the closing >s,
> written without intervening spaces, get confused with the Java shift
> right operator ">>>".  If you insert a space into that triplet, the
> syntax comes back again.
>
> This will be easy to fix.

I bet.

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

Message #21 received at 24671 <at> debbugs.gnu.org (full text, mbox):

From: Alan Mackenzie <acm <at> muc.de>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 24671 <at> debbugs.gnu.org, Daniel Colascione <dancol <at> dancol.org>
Subject: Re: bug#24671: java-mode confused by non-trivial generics
Date: Sat, 27 Jul 2019 16:36:23 +0000

Hello, Lars and Daniel.

On Sat, Jul 27, 2019 at 17:11:23 +0200, Lars Ingebrigtsen wrote:
> Alan Mackenzie <acm <at> muc.de> writes:

> > I think the bug should be reopened: it was about the syntax on < and >
> > rather than the fontification.

> > If you put point in front of any of the <s, you should be able to
> > execute C-M-f, moving to the matching >.

> Oh, I see; reopening.

> > This doesn't happen in the current scenario because the closing >s,
> > written without intervening spaces, get confused with the Java shift
> > right operator ">>>".  If you insert a space into that triplet, the
> > syntax comes back again.

> > This will be easy to fix.

> I bet.

I've committed a fix to the master branch.  Maybe one or both of you
might want to try it out before the bug is closed.

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

-- 
Alan Mackenzie (Nuremberg, Germany).

Message #24 received at 24671 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Alan Mackenzie <acm <at> muc.de>
Cc: 24671 <at> debbugs.gnu.org, Daniel Colascione <dancol <at> dancol.org>
Subject: Re: bug#24671: java-mode confused by non-trivial generics
Date: Sun, 28 Jul 2019 11:43:52 +0200

Alan Mackenzie <acm <at> muc.de> writes:

> I've committed a fix to the master branch.  Maybe one or both of you
> might want to try it out before the bug is closed.

Thanks; I tried it out now, and it seems to work well for me, so I'm
closing this bug report.

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

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.