GNU bug report logs - #62399
30.0.50; eglot + csharp-ts-mode, query pattern is malformed

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

From: 牟 桐 <mou.tong <at> outlook.com>
To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>
Subject: 30.0.50; eglot + csharp-ts-mode, query pattern is malformed
Date: Thu, 23 Mar 2023 05:59:02 +0000

Hi there, I'm using csharp-ts-mode with eglot.

When My cursor stopped on a symbol, eglot will bold the text, which
works fine when I'm using `csharp-mode`.  But when I changed the major
mode to `csharp-ts-mode`, there will be the following error in the
minibuffer.

```
error in process filter: Query pattern is malformed: "Node type error at", 1060, "(qualified_name (identifier) @font-lock-type-face) (using_directive (identifier) @font-lock-type-face) (using_directive (name_equals (identifier) @font-lock-type-face)) (enum_declaration (identifier) @font-lock-type-face) (enum_member_declaration (identifier) @font-lock-variable-name-face) (interface_declaration (identifier) @font-lock-type-face) (struct_declaration (identifier) @font-lock-type-face) (record_declaration (identifier) @font-lock-type-face) (namespace_declaration (identifier) @font-lock-type-face) (base_list (identifier) @font-lock-type-face) (property_declaration type: (nullable_type) @font-lock-type-face name: (identifier) @font-lock-variable-name-face) (property_declaration type: (predefined_type) @font-lock-type-face name: (identifier) @font-lock-variable-name-face) (property_declaration type: (identifier) @font-lock-type-face name: (identifier) @font-lock-variable-name-face) (class_declaration (identifier) @font-lock-type-face) (constructor_declaration name: (_) @font-lock-type-face) (method_declaration type: [(identifier) (void_keyword)] @font-lock-type-face) (method_declaration type: (generic_name (identifier) @font-lock-type-face)) (method_declaration name: (_) @font-lock-function-name-face) (catch_declaration ((identifier) @font-lock-type-face)) (catch_declaration ((identifier) @font-lock-type-face (identifier) @font-lock-variable-name-face)) (variable_declaration (identifier) @font-lock-type-face) (variable_declaration (generic_name (identifier) @font-lock-type-face)) (variable_declarator (identifier) @font-lock-variable-name-face) (parameter type: (identifier) @font-lock-type-face) (parameter type: (generic_name (identifier) @font-lock-type-face)) (parameter name: (identifier) @font-lock-variable-name-face) (lambda_expression (identifier) @font-lock-variable-name-face) (declaration_expression type: (identifier) @font-lock-type-face) (declaration_expression name: (identifier) @font-lock-variable-name-face)", "Debug the query with `treesit-query-validate'"
```

Steps to reproduce:

1. `dotnet new console -o demo`
2. Use Emacs to open `demo/Program.cs`.
3. `M-x eglot` and put your cursor on `WriteLine` method.
4. Minibuffer error shows up.



In GNU Emacs 30.0.50 (build 2, x86_64-apple-darwin21.6.0, NS
appkit-2113.60 Version 12.6.3 (Build 21G419)) of 2023-03-17 built on
dalum.local
Repository revision: 0330cff65ae837e93ae4d059acf643734d16386d
Repository branch: master
Windowing system distributor 'Apple', version 10.3.2113
System Description:  macOS 12.6.3

Configured using:
'configure --with-native-compilation=aot'

Configured features:
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Message #8 received at 62399 <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: 牟 桐 <mou.tong <at> outlook.com>, 62399 <at> debbugs.gnu.org
Subject: Re: bug#62399: 30.0.50; eglot + csharp-ts-mode, query pattern is
 malformed
Date: Thu, 23 Mar 2023 08:09:41 +0200

Hi!

On 23/03/2023 07:59, 牟 桐 wrote:
> 2. Use Emacs to open `demo/Program.cs`.

Could you attach the file demo/Program.cs here?

Message #11 received at 62399 <at> debbugs.gnu.org (full text, mbox):

From: 牟 桐 <mou.tong <at> outlook.com>
To: Dmitry Gutov <dgutov <at> yandex.ru>, "62399 <at> debbugs.gnu.org"
 <62399 <at> debbugs.gnu.org>
Subject: 回复: bug#62399: 30.0.50; eglot + csharp-ts-mode, query pattern is malformed
Date: Thu, 23 Mar 2023 06:25:35 +0000

[Message part 1 (text/plain, inline)]

Ah sorry, here it is:

``` csharp-ts-mode
Console.WriteLine("Hello, World!");
```

(yes, just one line...)

The lsp I’m using is `csharp-ls`, I guess it won’t affect this issue.

But just in case, the way to install `csharp-ls` is

   dotnet tool install csharp-ls -g

________________________________
发件人: DG <raaahh <at> gmail.com> 代表 Dmitry Gutov <dgutov <at> yandex.ru>
发送时间: 2023年3月23日 14:09
收件人: 牟 桐 <mou.tong <at> outlook.com>; 62399 <at> debbugs.gnu.org <62399 <at> debbugs.gnu.org>
主题: Re: bug#62399: 30.0.50; eglot + csharp-ts-mode, query pattern is malformed

Hi!

On 23/03/2023 07:59, 牟 桐 wrote:
> 2. Use Emacs to open `demo/Program.cs`.

Could you attach the file demo/Program.cs here?

[Message part 2 (text/html, inline)]

Message #14 received at 62399 <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: 牟 桐 <mou.tong <at> outlook.com>,
 "62399 <at> debbugs.gnu.org" <62399 <at> debbugs.gnu.org>,
 Theodor Thornhill <theo <at> thornhill.no>
Subject: Re: bug#62399: 回复: bug#62399: 30.0.50; eglot + csharp-ts-mode, query pattern is malformed
Date: Thu, 23 Mar 2023 09:57:36 +0200

On 23/03/2023 08:25, 牟 桐 wrote:
> Ah sorry, here it is:
> 
> ``` csharp-ts-mode
> Console.WriteLine("Hello, World!");
> ```
> 
> (yes, just one line...)

Thanks! I guess the problem will show up with any file.

And I can repro after installing the c-sharp grammar from master.

> The lsp I’m using is `csharp-ls`, I guess it won’t affect this issue.
> 
> But just in case, the way to install `csharp-ls` is
> 
>     dotnet tool install csharp-ls -g

A language server was not necessary to reproduce this, but thanks.

This is the patch that worked for me:

diff --git a/lisp/progmodes/csharp-mode.el b/lisp/progmodes/csharp-mode.el
index 47cd13e7fdb..e2df08f4dae 100644
--- a/lisp/progmodes/csharp-mode.el
+++ b/lisp/progmodes/csharp-mode.el
@@ -832,7 +832,7 @@ csharp-ts-mode--font-lock-settings

      (constructor_declaration name: (_) @font-lock-type-face)

-     (method_declaration type: [(identifier) (void_keyword)] 
@font-lock-type-face)
+     (method_declaration type: [(identifier) (predefined_type)] 
@font-lock-type-face)
      (method_declaration type: (generic_name (identifier) 
@font-lock-type-face))
      (method_declaration name: (_) @font-lock-function-name-face)


Looks like a change was made to the grammar fairly recently which made 
(void_keyword) not valid in the above context: 
https://github.com/tree-sitter/tree-sitter-c-sharp/commit/18a531d4c133d9f1b3796b9bead7681ba3382fb3

Cc'ing the author of that mode for a second opinion. But I guess we'll 
need a runtime check just like we added for java-ts-mode recently.

Message #17 received at 62399 <at> debbugs.gnu.org (full text, mbox):

From: 牟 桐 <mou.tong <at> outlook.com>
To: Dmitry Gutov <dgutov <at> yandex.ru>, "62399 <at> debbugs.gnu.org"
 <62399 <at> debbugs.gnu.org>, Theodor Thornhill <theo <at> thornhill.no>
Subject: bug#62399: 30.0.50; eglot + csharp-ts-mode, query pattern is malformed
Date: Thu, 23 Mar 2023 16:19:59 +0000

[Message part 1 (text/plain, inline)]

Thanks, I tried your patch and now it works fine on my computer now.

Hope to see it got merged soon 😉

发件人: Dmitry Gutov<mailto:dgutov <at> yandex.ru>
发送时间: 2023年3月23日 15:57
收件人: 牟 桐<mailto:mou.tong <at> outlook.com>; 62399 <at> debbugs.gnu.org<mailto:62399 <at> debbugs.gnu.org>; Theodor Thornhill<mailto:theo <at> thornhill.no>
主题: Re: bug#62399: 回复: bug#62399: 30.0.50; eglot + csharp-ts-mode, query pattern is malformed

On 23/03/2023 08:25, 牟 桐 wrote:
> Ah sorry, here it is:
>
> ``` csharp-ts-mode
> Console.WriteLine("Hello, World!");
> ```
>
> (yes, just one line...)

Thanks! I guess the problem will show up with any file.

And I can repro after installing the c-sharp grammar from master.

> The lsp I’m using is `csharp-ls`, I guess it won’t affect this issue.
>
> But just in case, the way to install `csharp-ls` is
>
>     dotnet tool install csharp-ls -g

A language server was not necessary to reproduce this, but thanks.

This is the patch that worked for me:

diff --git a/lisp/progmodes/csharp-mode.el b/lisp/progmodes/csharp-mode.el
index 47cd13e7fdb..e2df08f4dae 100644
--- a/lisp/progmodes/csharp-mode.el
+++ b/lisp/progmodes/csharp-mode.el
@@ -832,7 +832,7 @@ csharp-ts-mode--font-lock-settings

       (constructor_declaration name: (_) @font-lock-type-face)

-     (method_declaration type: [(identifier) (void_keyword)]
@font-lock-type-face)
+     (method_declaration type: [(identifier) (predefined_type)]
@font-lock-type-face)
       (method_declaration type: (generic_name (identifier)
@font-lock-type-face))
       (method_declaration name: (_) @font-lock-function-name-face)


Looks like a change was made to the grammar fairly recently which made
(void_keyword) not valid in the above context:
https://github.com/tree-sitter/tree-sitter-c-sharp/commit/18a531d4c133d9f1b3796b9bead7681ba3382fb3

Cc'ing the author of that mode for a second opinion. But I guess we'll
need a runtime check just like we added for java-ts-mode recently.

[Message part 2 (text/html, inline)]

Message #20 received at 62399 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefankangas <at> gmail.com>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: Theodor Thornhill <theo <at> thornhill.no>,
 "62399 <at> debbugs.gnu.org" <62399 <at> debbugs.gnu.org>,
 牟 桐 <mou.tong <at> outlook.com>
Subject: Re: bug#62399: 回复: bug#62399: 30.0.50; eglot + csharp-ts-mode, query pattern is malformed
Date: Mon, 4 Sep 2023 12:56:48 -0700

Dmitry Gutov <dgutov <at> yandex.ru> writes:

> On 23/03/2023 08:25, 牟 桐 wrote:
>> Ah sorry, here it is:
>> ``` csharp-ts-mode
>> Console.WriteLine("Hello, World!");
>> ```
>> (yes, just one line...)
>
> Thanks! I guess the problem will show up with any file.
>
> And I can repro after installing the c-sharp grammar from master.
>
>> The lsp I’m using is `csharp-ls`, I guess it won’t affect this issue.
>> But just in case, the way to install `csharp-ls` is
>>     dotnet tool install csharp-ls -g
>
> A language server was not necessary to reproduce this, but thanks.
>
> This is the patch that worked for me:

It doesn't seem like this was ever installed?  Should it be?

> diff --git a/lisp/progmodes/csharp-mode.el b/lisp/progmodes/csharp-mode.el
> index 47cd13e7fdb..e2df08f4dae 100644
> --- a/lisp/progmodes/csharp-mode.el
> +++ b/lisp/progmodes/csharp-mode.el
> @@ -832,7 +832,7 @@ csharp-ts-mode--font-lock-settings
>
>       (constructor_declaration name: (_) @font-lock-type-face)
>
> -     (method_declaration type: [(identifier) (void_keyword)]
>       @font-lock-type-face)
> +     (method_declaration type: [(identifier) (predefined_type)]
> @font-lock-type-face)
>       (method_declaration type: (generic_name (identifier)
>       @font-lock-type-face))
>       (method_declaration name: (_) @font-lock-function-name-face)
>
>
> Looks like a change was made to the grammar fairly recently which made
> (void_keyword) not valid in the above context:
> https://github.com/tree-sitter/tree-sitter-c-sharp/commit/18a531d4c133d9f1b3796b9bead7681ba3382fb3
>
> Cc'ing the author of that mode for a second opinion. But I guess we'll need a
> runtime check just like we added for java-ts-mode recently.

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