bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Spencer Pavkovic via Bug reports for GNU Emacs, the Swiss army knife of text editors]

If you are in java-ts-mode, attempting to put an opening curly bracket
'{' on it's own line will not indent the bracket at all.

While I expect it to place the bracket on the same indent level as the
block (like regular java-mode), it is always far left with 0 tabs.

I did run with emacs -Q and the same thing happened.

// EXPECTED
public class Thing
{
      public Thing()
      {
          try
          {
              // stuff
          } catch (Exception e)
          {
              // stuff
          }
      }
}

// ACTUAL
public class Thing
{
      public Thing()
{
          try
{
              // stuff
          } catch (Exception e)
{
              // other stuff
          }
     }
}
In GNU Emacs 29.1 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo
version 1.17.8) of 2023-11-15 built on localhost
Windowing system distributor 'The X.Org Foundation', version 11.0.12101009
System Description: Gentoo Linux

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bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

> Date: Thu, 30 Nov 2023 16:28:11 -0600
> From:  Spencer Pavkovic via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> If you are in java-ts-mode, attempting to put an opening curly bracket
> '{' on it's own line will not indent the bracket at all.
> 
> While I expect it to place the bracket on the same indent level as the
> block (like regular java-mode), it is always far left with 0 tabs.
> 
> I did run with emacs -Q and the same thing happened.
> 
> // EXPECTED
> public class Thing
> {
>       public Thing()
>       {
>           try
>           {
>               // stuff
>           } catch (Exception e)
>           {
>               // stuff
>           }
>       }
> }
> 
> // ACTUAL
> public class Thing
> {
>       public Thing()
> {
>           try
> {
>               // stuff
>           } catch (Exception e)
> {
>               // other stuff
>           }
>      }
> }

Yuan and Theo, any comments?

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Theodor Thornhill via Bug reports for GNU Emacs, the Swiss army knife of text editors]

[-- Attachment #1: Type: text/html, Size: 2710 bytes --]

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

> Date: Sat, 09 Dec 2023 17:40:12 +0100
> From: Theodor Thornhill <theo@thornhill.no>
> Cc: Spencer Pavkovic <spavkov@ilstu.edu>, Yuan Fu <casouri@gmail.com>,
>  67556@debbugs.gnu.org
> 
>  Yuan and Theo, any comments? 
> 
> This can be supported, but no Java code is indented like this, though. But it could make sense to
> support at least _some_ indentation here. I can take a look at this tonight!

Thanks, please do.

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Yuan Fu]

On 12/9/23 8:40 AM, Theodor Thornhill wrote:
>
>
> On Dec 9, 2023 09:26, Eli Zaretskii <eliz@gnu.org> wrote:
>
>     > Date: Thu, 30 Nov 2023 16:28:11 -0600
>     > From:  Spencer Pavkovic via "Bug reports for GNU Emacs,
>     >  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>     >
>     > If you are in java-ts-mode, attempting to put an opening curly
>     bracket
>     > '{' on it's own line will not indent the bracket at all.
>     >
>     > While I expect it to place the bracket on the same indent level
>     as the
>     > block (like regular java-mode), it is always far left with 0 tabs.
>     >
>     > I did run with emacs -Q and the same thing happened.
>     >
>     > // EXPECTED
>     > public class Thing
>     > {
>     >       public Thing()
>     >       {
>     >           try
>     >           {
>     >               // stuff
>     >           } catch (Exception e)
>     >           {
>     >               // stuff
>     >           }
>     >       }
>     > }
>     >
>     > // ACTUAL
>     > public class Thing
>     > {
>     >       public Thing()
>     > {
>     >           try
>     > {
>     >               // stuff
>     >           } catch (Exception e)
>     > {
>     >               // other stuff
>     >           }
>     >      }
>     > }
>
>     Yuan and Theo, any comments?
>
> This can be supported, but no Java code is indented like this, though. 
> But it could make sense to support at least _some_ indentation here. I 
> can take a look at this tonight!
>
> Thanks for the ping :)
> Theo

Thank you Theo. I'll leave this to you.

Yuan

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

Theo, any progress?  This bug is one of those which I'd like to
resolve before releasing Emacs 29.2.  Could you please look into this?

Thanks.

> Date: Sun, 10 Dec 2023 01:56:55 -0800
> Cc: Spencer Pavkovic <spavkov@ilstu.edu>, 67556@debbugs.gnu.org
> From: Yuan Fu <casouri@gmail.com>
> 
> 
> 
> On 12/9/23 8:40 AM, Theodor Thornhill wrote:
> >
> >
> > On Dec 9, 2023 09:26, Eli Zaretskii <eliz@gnu.org> wrote:
> >
> >     > Date: Thu, 30 Nov 2023 16:28:11 -0600
> >     > From:  Spencer Pavkovic via "Bug reports for GNU Emacs,
> >     >  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> >     >
> >     > If you are in java-ts-mode, attempting to put an opening curly
> >     bracket
> >     > '{' on it's own line will not indent the bracket at all.
> >     >
> >     > While I expect it to place the bracket on the same indent level
> >     as the
> >     > block (like regular java-mode), it is always far left with 0 tabs.
> >     >
> >     > I did run with emacs -Q and the same thing happened.
> >     >
> >     > // EXPECTED
> >     > public class Thing
> >     > {
> >     >       public Thing()
> >     >       {
> >     >           try
> >     >           {
> >     >               // stuff
> >     >           } catch (Exception e)
> >     >           {
> >     >               // stuff
> >     >           }
> >     >       }
> >     > }
> >     >
> >     > // ACTUAL
> >     > public class Thing
> >     > {
> >     >       public Thing()
> >     > {
> >     >           try
> >     > {
> >     >               // stuff
> >     >           } catch (Exception e)
> >     > {
> >     >               // other stuff
> >     >           }
> >     >      }
> >     > }
> >
> >     Yuan and Theo, any comments?
> >
> > This can be supported, but no Java code is indented like this, though. 
> > But it could make sense to support at least _some_ indentation here. I 
> > can take a look at this tonight!
> >
> > Thanks for the ping :)
> > Theo
> 
> Thank you Theo. I'll leave this to you.
> 
> Yuan
> 

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

Ping! Ping!  Theo, please chime in.

> Cc: spavkov@ilstu.edu, 67556@debbugs.gnu.org
> Date: Sat, 16 Dec 2023 13:56:59 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> 
> Theo, any progress?  This bug is one of those which I'd like to
> resolve before releasing Emacs 29.2.  Could you please look into this?
> 
> Thanks.
> 
> > Date: Sun, 10 Dec 2023 01:56:55 -0800
> > Cc: Spencer Pavkovic <spavkov@ilstu.edu>, 67556@debbugs.gnu.org
> > From: Yuan Fu <casouri@gmail.com>
> > 
> > 
> > 
> > On 12/9/23 8:40 AM, Theodor Thornhill wrote:
> > >
> > >
> > > On Dec 9, 2023 09:26, Eli Zaretskii <eliz@gnu.org> wrote:
> > >
> > >     > Date: Thu, 30 Nov 2023 16:28:11 -0600
> > >     > From:  Spencer Pavkovic via "Bug reports for GNU Emacs,
> > >     >  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> > >     >
> > >     > If you are in java-ts-mode, attempting to put an opening curly
> > >     bracket
> > >     > '{' on it's own line will not indent the bracket at all.
> > >     >
> > >     > While I expect it to place the bracket on the same indent level
> > >     as the
> > >     > block (like regular java-mode), it is always far left with 0 tabs.
> > >     >
> > >     > I did run with emacs -Q and the same thing happened.
> > >     >
> > >     > // EXPECTED
> > >     > public class Thing
> > >     > {
> > >     >       public Thing()
> > >     >       {
> > >     >           try
> > >     >           {
> > >     >               // stuff
> > >     >           } catch (Exception e)
> > >     >           {
> > >     >               // stuff
> > >     >           }
> > >     >       }
> > >     > }
> > >     >
> > >     > // ACTUAL
> > >     > public class Thing
> > >     > {
> > >     >       public Thing()
> > >     > {
> > >     >           try
> > >     > {
> > >     >               // stuff
> > >     >           } catch (Exception e)
> > >     > {
> > >     >               // other stuff
> > >     >           }
> > >     >      }
> > >     > }
> > >
> > >     Yuan and Theo, any comments?
> > >
> > > This can be supported, but no Java code is indented like this, though. 
> > > But it could make sense to support at least _some_ indentation here. I 
> > > can take a look at this tonight!
> > >
> > > Thanks for the ping :)
> > > Theo
> > 
> > Thank you Theo. I'll leave this to you.
> > 
> > Yuan
> > 
> 
> 
> 
> 

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Theodor Thornhill via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Eli Zaretskii <eliz@gnu.org> writes:

> Ping! Ping!  Theo, please chime in.
>

Hi, sorry - holidays came crashing in, halting everything but family for
a while.

I had a quick glance when the bug was reported, but the fix wasn't super
simple. I'm looking at it now :)

Sorry for the delay, and thanks for the ping!

Should this go on master or emacs-29?

Theo

>> 

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

> From: Theodor Thornhill <theo@thornhill.no>
> Cc: casouri@gmail.com, spavkov@ilstu.edu, 67556@debbugs.gnu.org
> Date: Thu, 28 Dec 2023 09:01:24 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Ping! Ping!  Theo, please chime in.
> >
> 
> Hi, sorry - holidays came crashing in, halting everything but family for
> a while.
> 
> I had a quick glance when the bug was reported, but the fix wasn't super
> simple. I'm looking at it now :)

Thanks!

> Should this go on master or emacs-29?

Preferably to emacs-29, unless you conclude that a fix is too risky
for the release branch.

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

> Cc: spavkov@ilstu.edu, 67556@debbugs.gnu.org, casouri@gmail.com
> Date: Thu, 28 Dec 2023 10:05:56 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > From: Theodor Thornhill <theo@thornhill.no>
> > Cc: casouri@gmail.com, spavkov@ilstu.edu, 67556@debbugs.gnu.org
> > Date: Thu, 28 Dec 2023 09:01:24 +0100
> > 
> > Eli Zaretskii <eliz@gnu.org> writes:
> > 
> > > Ping! Ping!  Theo, please chime in.
> > >
> > 
> > Hi, sorry - holidays came crashing in, halting everything but family for
> > a while.
> > 
> > I had a quick glance when the bug was reported, but the fix wasn't super
> > simple. I'm looking at it now :)
> 
> Thanks!
> 
> > Should this go on master or emacs-29?
> 
> Preferably to emacs-29, unless you conclude that a fix is too risky
> for the release branch.

Ping!  Any progress here?

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

Ping! Ping! Can we please make some progress here?

> Cc: spavkov@ilstu.edu, 67556@debbugs.gnu.org, casouri@gmail.com
> Date: Tue, 09 Jan 2024 22:00:48 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > Cc: spavkov@ilstu.edu, 67556@debbugs.gnu.org, casouri@gmail.com
> > Date: Thu, 28 Dec 2023 10:05:56 +0200
> > From: Eli Zaretskii <eliz@gnu.org>
> > 
> > > From: Theodor Thornhill <theo@thornhill.no>
> > > Cc: casouri@gmail.com, spavkov@ilstu.edu, 67556@debbugs.gnu.org
> > > Date: Thu, 28 Dec 2023 09:01:24 +0100
> > > 
> > > Eli Zaretskii <eliz@gnu.org> writes:
> > > 
> > > > Ping! Ping!  Theo, please chime in.
> > > >
> > > 
> > > Hi, sorry - holidays came crashing in, halting everything but family for
> > > a while.
> > > 
> > > I had a quick glance when the bug was reported, but the fix wasn't super
> > > simple. I'm looking at it now :)
> > 
> > Thanks!
> > 
> > > Should this go on master or emacs-29?
> > 
> > Preferably to emacs-29, unless you conclude that a fix is too risky
> > for the release branch.
> 
> Ping!  Any progress here?
> 
> 
> 
> 

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

Ping! Ping! Ping! Yuan and Theo, could you please chime in?

> Cc: spavkov@ilstu.edu, 67556@debbugs.gnu.org
> Date: Sat, 20 Jan 2024 11:06:45 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> 
> Ping! Ping! Can we please make some progress here?
> 
> > Cc: spavkov@ilstu.edu, 67556@debbugs.gnu.org, casouri@gmail.com
> > Date: Tue, 09 Jan 2024 22:00:48 +0200
> > From: Eli Zaretskii <eliz@gnu.org>
> > 
> > > Cc: spavkov@ilstu.edu, 67556@debbugs.gnu.org, casouri@gmail.com
> > > Date: Thu, 28 Dec 2023 10:05:56 +0200
> > > From: Eli Zaretskii <eliz@gnu.org>
> > > 
> > > > From: Theodor Thornhill <theo@thornhill.no>
> > > > Cc: casouri@gmail.com, spavkov@ilstu.edu, 67556@debbugs.gnu.org
> > > > Date: Thu, 28 Dec 2023 09:01:24 +0100
> > > > 
> > > > Eli Zaretskii <eliz@gnu.org> writes:
> > > > 
> > > > > Ping! Ping!  Theo, please chime in.
> > > > >
> > > > 
> > > > Hi, sorry - holidays came crashing in, halting everything but family for
> > > > a while.
> > > > 
> > > > I had a quick glance when the bug was reported, but the fix wasn't super
> > > > simple. I'm looking at it now :)
> > > 
> > > Thanks!
> > > 
> > > > Should this go on master or emacs-29?
> > > 
> > > Preferably to emacs-29, unless you conclude that a fix is too risky
> > > for the release branch.
> > 
> > Ping!  Any progress here?
> > 
> > 
> > 
> > 
> 
> 
> 
> 

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Dmitry Gutov]

[-- Attachment #1: Type: text/plain, Size: 732 bytes --]

On 11/02/2024 10:43, Eli Zaretskii wrote:
> Ping! Ping! Ping! Yuan and Theo, could you please chime in?

Here's a minimal patch, consisting of a new rule and a couple of 
replacements where the new standalone-parent anchor is used instead of 
the helper c-ts-common-statement-offset.

Because the latter behaves differently when the opening curly is on a 
separate line, and we don't really want that.

A more finished change will likely either switch over to 
standalone-parent completely, or go back and revamp 
c-ts-common-statement-offset to avoid this distinction (despite the 
name, it only remains in use in java-ts-mode these days).

The former has been a simpler route so far, so I suggest we at least 
commit the attached.

[-- Attachment #2: java-ts-mode-indent.diff --]
[-- Type: text/x-patch, Size: 1789 bytes --]

diff --git a/lisp/progmodes/java-ts-mode.el b/lisp/progmodes/java-ts-mode.el
index 0b1ac49b99f..580c979b94f 100644
--- a/lisp/progmodes/java-ts-mode.el
+++ b/lisp/progmodes/java-ts-mode.el
@@ -74,7 +74,9 @@ java-ts-mode--indent-rules
      ((parent-is "program") column-0 0)
      ((match "}" "element_value_array_initializer")
       parent-bol 0)
-     ((node-is "}") column-0 c-ts-common-statement-offset)
+     ((match "\\`\\(?:constructor_body\\|class_body\\|interface_body\\|block\\)\\'")
+      parent-bol 0)
+     ((node-is "}") standalone-parent 0)
      ((node-is ")") parent-bol 0)
      ((node-is "else") parent-bol 0)
      ((node-is "]") parent-bol 0)
@@ -86,7 +88,7 @@ java-ts-mode--indent-rules
      ((parent-is "array_initializer") parent-bol java-ts-mode-indent-offset)
      ((parent-is "annotation_type_body") column-0 c-ts-common-statement-offset)
      ((parent-is "interface_body") column-0 c-ts-common-statement-offset)
-     ((parent-is "constructor_body") column-0 c-ts-common-statement-offset)
+     ((parent-is "constructor_body") standalone-parent java-ts-mode-indent-offset)
      ((parent-is "enum_body_declarations") parent-bol 0)
      ((parent-is "enum_body") column-0 c-ts-common-statement-offset)
      ((parent-is "switch_block") column-0 c-ts-common-statement-offset)
@@ -125,7 +127,7 @@ java-ts-mode--indent-rules
      ((parent-is "case_statement") parent-bol java-ts-mode-indent-offset)
      ((parent-is "labeled_statement") parent-bol java-ts-mode-indent-offset)
      ((parent-is "do_statement") parent-bol java-ts-mode-indent-offset)
-     ((parent-is "block") column-0 c-ts-common-statement-offset)))
+     ((parent-is "block") standalone-parent java-ts-mode-indent-offset)))
   "Tree-sitter indent rules.")
 
 (defvar java-ts-mode--keywords

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

> Date: Mon, 12 Feb 2024 00:42:50 +0200
> Cc: spavkov@ilstu.edu, 67556@debbugs.gnu.org
> From: Dmitry Gutov <dmitry@gutov.dev>
> 
> On 11/02/2024 10:43, Eli Zaretskii wrote:
> > Ping! Ping! Ping! Yuan and Theo, could you please chime in?
> 
> Here's a minimal patch, consisting of a new rule and a couple of 
> replacements where the new standalone-parent anchor is used instead of 
> the helper c-ts-common-statement-offset.
> 
> Because the latter behaves differently when the opening curly is on a 
> separate line, and we don't really want that.
> 
> A more finished change will likely either switch over to 
> standalone-parent completely, or go back and revamp 
> c-ts-common-statement-offset to avoid this distinction (despite the 
> name, it only remains in use in java-ts-mode these days).
> 
> The former has been a simpler route so far, so I suggest we at least 
> commit the attached.

No further comments, so I suggest that you install this on master.

Thanks.

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Dmitry Gutov]

On 17/02/2024 10:35, Eli Zaretskii wrote:
> No further comments, so I suggest that you install this on master.

Not emacs-29? It seems like we fix a serious omission here.

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Eli Zaretskii]

> Date: Sat, 17 Feb 2024 15:31:19 +0200
> Cc: theo@thornhill.no, casouri@gmail.com, spavkov@ilstu.edu,
>  67556@debbugs.gnu.org
> From: Dmitry Gutov <dmitry@gutov.dev>
> 
> On 17/02/2024 10:35, Eli Zaretskii wrote:
> > No further comments, so I suggest that you install this on master.
> 
> Not emacs-29? It seems like we fix a serious omission here.

I didn't realize this is a bug in Emacs 29.  Then emacs-29 is fine,
thanks.

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Dmitry Gutov]

On 17/02/2024 15:56, Eli Zaretskii wrote:
>> Date: Sat, 17 Feb 2024 15:31:19 +0200
>> Cc: theo@thornhill.no, casouri@gmail.com, spavkov@ilstu.edu,
>>   67556@debbugs.gnu.org
>> From: Dmitry Gutov <dmitry@gutov.dev>
>>
>> On 17/02/2024 10:35, Eli Zaretskii wrote:
>>> No further comments, so I suggest that you install this on master.
>>
>> Not emacs-29? It seems like we fix a serious omission here.
> 
> I didn't realize this is a bug in Emacs 29.  Then emacs-29 is fine,
> thanks.

Thanks. Now installed, with a couple more tweaks and a new indentation test.

bug#67556: 29.1; java-ts-mode doesn't indent open curly brackets properly

[Dmitry Gutov]

On 09/12/2023 18:40, Theodor Thornhill via Bug reports for GNU Emacs, 
the Swiss army knife of text editors wrote:
> This can be supported, but no Java code is indented like this, though.

At the very least, this style has been somewhat popular a decade ago 
when I last did Java.

Note that our Android port uses a somewhat similar style, though that 
one is more likely because the author likes the GNU C indentation.