GNU bug report logs - #77848
31.0.50; treesit-update-ranges: offset setting is ignored for local parsers

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Package: emacs;

Reported by: Roman Rudakov <rrudakov <at> fastmail.com>

Date: Wed, 16 Apr 2025 19:06:03 UTC

Severity: normal

Found in version 31.0.50

Done: Yuan Fu <casouri <at> gmail.com>

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Report forwarded to bug-gnu-emacs <at> gnu.org:
bug#77848; Package emacs. (Wed, 16 Apr 2025 19:06:04 GMT) Full text and rfc822 format available.

Acknowledgement sent to Roman Rudakov <rrudakov <at> fastmail.com>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs <at> gnu.org. (Wed, 16 Apr 2025 19:06:04 GMT) Full text and rfc822 format available.

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

From: Roman Rudakov <rrudakov <at> fastmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 31.0.50; treesit-update-ranges: offset setting is ignored for local
 parsers
Date: Wed, 16 Apr 2025 21:05:13 +0200
Hello, I've noticed that when defining 'treesit-range-settings' using 
the 'treesit-range-rules helper function, such as:

(treesit-range-rules
 :embed 'markdown-inline
 :host 'clojure
 :offset '(1 . -1)
 :local t
 (clojure-ts--docstring-query '@capture))

The ':offset' setting doesn't have any effect.

After debugging the 'treesit-update-ranges' function, I noticed that 
it calls 'treesit--update-range-1', which in turn calls 
'treesit--update-ranges-local' if ':local t' is 
specified. 'treesit--update-ranges-local' does not accept offset as an 
argument, although it is mentioned in its documentation string:

> OFFSET is a cons of start and end offsets that are applied to the 
> range
> for the local parser.

This discrepancy between the documented behavior and the actual 
implementation of 'treesit--update-ranges-local' regarding the offset 
argument might be a bug.


In GNU Emacs 31.0.50 (build 1, aarch64-apple-darwin24.4.0, NS
appkit-2575.50 Version 15.4 (Build 24E248)) of 2025-04-16 built on
macbookpro.home
Windowing system distributor 'Apple', version 10.3.2575
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-- 
Best regards, Roman




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#77848; Package emacs. (Thu, 17 Apr 2025 06:26:02 GMT) Full text and rfc822 format available.

Message #8 received at 77848 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Roman Rudakov <rrudakov <at> fastmail.com>
Cc: Yuan Fu <casouri <at> gmail.com>, 77848 <at> debbugs.gnu.org
Subject: Re: bug#77848: 31.0.50; treesit-update-ranges: offset setting is
 ignored for local parsers
Date: Thu, 17 Apr 2025 09:24:04 +0300
Cc-ing Yuan for the help.

> Hello, I've noticed that when defining 'treesit-range-settings' using the
> 'treesit-range-rules helper function, such as:
>
> (treesit-range-rules
>  :embed 'markdown-inline
>  :host 'clojure
>  :offset '(1 . -1)
>  :local t
>  (clojure-ts--docstring-query '@capture))
>
> The ':offset' setting doesn't have any effect.
>
> After debugging the 'treesit-update-ranges' function, I noticed that it
> calls 'treesit--update-range-1', which in turn calls
> 'treesit--update-ranges-local' if ':local t' is
> specified. 'treesit--update-ranges-local' does not accept offset as an
> argument, although it is mentioned in its documentation string:
>
>> OFFSET is a cons of start and end offsets that are applied to the range
>> for the local parser.
>
> This discrepancy between the documented behavior and the actual
> implementation of 'treesit--update-ranges-local' regarding the offset
> argument might be a bug.




Reply sent to Yuan Fu <casouri <at> gmail.com>:
You have taken responsibility. (Thu, 17 Apr 2025 23:46:03 GMT) Full text and rfc822 format available.

Notification sent to Roman Rudakov <rrudakov <at> fastmail.com>:
bug acknowledged by developer. (Thu, 17 Apr 2025 23:46:03 GMT) Full text and rfc822 format available.

Message #13 received at 77848-done <at> debbugs.gnu.org (full text, mbox):

From: Yuan Fu <casouri <at> gmail.com>
To: Juri Linkov <juri <at> linkov.net>
Cc: Roman Rudakov <rrudakov <at> fastmail.com>, 77848-done <at> debbugs.gnu.org
Subject: Re: bug#77848: 31.0.50; treesit-update-ranges: offset setting is
 ignored for local parsers
Date: Thu, 17 Apr 2025 16:44:42 -0700

> On Apr 16, 2025, at 11:24 PM, Juri Linkov <juri <at> linkov.net> wrote:
> 
> Cc-ing Yuan for the help.
> 
>> Hello, I've noticed that when defining 'treesit-range-settings' using the
>> 'treesit-range-rules helper function, such as:
>> 
>> (treesit-range-rules
>> :embed 'markdown-inline
>> :host 'clojure
>> :offset '(1 . -1)
>> :local t
>> (clojure-ts--docstring-query '@capture))
>> 
>> The ':offset' setting doesn't have any effect.
>> 
>> After debugging the 'treesit-update-ranges' function, I noticed that it
>> calls 'treesit--update-range-1', which in turn calls
>> 'treesit--update-ranges-local' if ':local t' is
>> specified. 'treesit--update-ranges-local' does not accept offset as an
>> argument, although it is mentioned in its documentation string:
>> 
>>> OFFSET is a cons of start and end offsets that are applied to the range
>>> for the local parser.
>> 
>> This discrepancy between the documented behavior and the actual
>> implementation of 'treesit--update-ranges-local' regarding the offset
>> argument might be a bug.

Yes, it’s indeed a bug. I’ve pushed a fix for it. Thanks to you both!

Yuan



Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#77848; Package emacs. (Fri, 18 Apr 2025 07:33:03 GMT) Full text and rfc822 format available.

Message #16 received at 77848-done <at> debbugs.gnu.org (full text, mbox):

From: Roman Rudakov <rrudakov <at> fastmail.com>
To: Yuan Fu <casouri <at> gmail.com>
Cc: 77848-done <at> debbugs.gnu.org, Juri Linkov <juri <at> linkov.net>
Subject: Re: bug#77848: 31.0.50; treesit-update-ranges: offset setting is
 ignored for local parsers
Date: Fri, 18 Apr 2025 09:32:00 +0200
Yuan Fu <casouri <at> gmail.com> writes:

>> On Apr 16, 2025, at 11:24 PM, Juri Linkov <juri <at> linkov.net> wrote:
>>
>> Cc-ing Yuan for the help.
>>
>>> Hello, I've noticed that when defining 'treesit-range-settings' 
>>> using the
>>> 'treesit-range-rules helper function, such as:
>>>
>>> (treesit-range-rules
>>> :embed 'markdown-inline
>>> :host 'clojure
>>> :offset '(1 . -1)
>>> :local t
>>> (clojure-ts--docstring-query '@capture))
>>>
>>> The ':offset' setting doesn't have any effect.
>>>
>>> After debugging the 'treesit-update-ranges' function, I noticed 
>>> that it
>>> calls 'treesit--update-range-1', which in turn calls
>>> 'treesit--update-ranges-local' if ':local t' is
>>> specified. 'treesit--update-ranges-local' does not accept offset 
>>> as an
>>> argument, although it is mentioned in its documentation string:
>>>
>>>> OFFSET is a cons of start and end offsets that are applied to the 
>>>> range
>>>> for the local parser.
>>>
>>> This discrepancy between the documented behavior and the actual
>>> implementation of 'treesit--update-ranges-local' regarding the 
>>> offset
>>> argument might be a bug.
>
> Yes, it’s indeed a bug. I’ve pushed a fix for it. Thanks to you 
> both!
>
> Yuan

Thank you!

Would it be possible to also install the fix on emacs-30 branch?
--
Best regards, Roman




Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#77848; Package emacs. (Fri, 18 Apr 2025 23:36:04 GMT) Full text and rfc822 format available.

Message #19 received at 77848-done <at> debbugs.gnu.org (full text, mbox):

From: Yuan Fu <casouri <at> gmail.com>
To: Roman Rudakov <rrudakov <at> fastmail.com>
Cc: 77848-done <at> debbugs.gnu.org, Juri Linkov <juri <at> linkov.net>
Subject: Re: bug#77848: 31.0.50; treesit-update-ranges: offset setting is
 ignored for local parsers
Date: Fri, 18 Apr 2025 16:34:39 -0700

> On Apr 18, 2025, at 12:32 AM, Roman Rudakov <rrudakov <at> fastmail.com> wrote:
> 
> Yuan Fu <casouri <at> gmail.com> writes:
> 
>>> On Apr 16, 2025, at 11:24 PM, Juri Linkov <juri <at> linkov.net> wrote:
>>> 
>>> Cc-ing Yuan for the help.
>>> 
>>>> Hello, I've noticed that when defining 'treesit-range-settings' using the
>>>> 'treesit-range-rules helper function, such as:
>>>> 
>>>> (treesit-range-rules
>>>> :embed 'markdown-inline
>>>> :host 'clojure
>>>> :offset '(1 . -1)
>>>> :local t
>>>> (clojure-ts--docstring-query '@capture))
>>>> 
>>>> The ':offset' setting doesn't have any effect.
>>>> 
>>>> After debugging the 'treesit-update-ranges' function, I noticed that it
>>>> calls 'treesit--update-range-1', which in turn calls
>>>> 'treesit--update-ranges-local' if ':local t' is
>>>> specified. 'treesit--update-ranges-local' does not accept offset as an
>>>> argument, although it is mentioned in its documentation string:
>>>> 
>>>>> OFFSET is a cons of start and end offsets that are applied to the range
>>>>> for the local parser.
>>>> 
>>>> This discrepancy between the documented behavior and the actual
>>>> implementation of 'treesit--update-ranges-local' regarding the offset
>>>> argument might be a bug.
>> 
>> Yes, it’s indeed a bug. I’ve pushed a fix for it. Thanks to you both!
>> 
>> Yuan
> 
> Thank you!
> 
> Would it be possible to also install the fix on emacs-30 branch?
> --
> Best regards, Roman

Ah right, thanks for the reminder. I thought this is a regression brought by the recent embedded parser change. Indeed, the local parser range function in Emacs 30 doesn’t handle offset either. I’ve pushed a separate fix to emacs-30.

Yuan



Information forwarded to bug-gnu-emacs <at> gnu.org:
bug#77848; Package emacs. (Sat, 19 Apr 2025 20:01:02 GMT) Full text and rfc822 format available.

Message #22 received at 77848-done <at> debbugs.gnu.org (full text, mbox):

From: Roman Rudakov <rrudakov <at> fastmail.com>
To: Yuan Fu <casouri <at> gmail.com>
Cc: 77848-done <at> debbugs.gnu.org, Juri Linkov <juri <at> linkov.net>
Subject: Re: bug#77848: 31.0.50; treesit-update-ranges: offset setting is
 ignored for local parsers
Date: Sat, 19 Apr 2025 21:59:44 +0200
Yuan Fu <casouri <at> gmail.com> writes:

>> On Apr 18, 2025, at 12:32 AM, Roman Rudakov <rrudakov <at> fastmail.com> 
>> wrote:
>>
>> Yuan Fu <casouri <at> gmail.com> writes:
>>
>>>> On Apr 16, 2025, at 11:24 PM, Juri Linkov <juri <at> linkov.net> 
>>>> wrote:
>>>>
>>>> Cc-ing Yuan for the help.
>>>>
>>>>> Hello, I've noticed that when defining 'treesit-range-settings' 
>>>>> using the
>>>>> 'treesit-range-rules helper function, such as:
>>>>>
>>>>> (treesit-range-rules
>>>>> :embed 'markdown-inline
>>>>> :host 'clojure
>>>>> :offset '(1 . -1)
>>>>> :local t
>>>>> (clojure-ts--docstring-query '@capture))
>>>>>
>>>>> The ':offset' setting doesn't have any effect.
>>>>>
>>>>> After debugging the 'treesit-update-ranges' function, I noticed 
>>>>> that it
>>>>> calls 'treesit--update-range-1', which in turn calls
>>>>> 'treesit--update-ranges-local' if ':local t' is
>>>>> specified. 'treesit--update-ranges-local' does not accept offset 
>>>>> as an
>>>>> argument, although it is mentioned in its documentation string:
>>>>>
>>>>>> OFFSET is a cons of start and end offsets that are applied to 
>>>>>> the range
>>>>>> for the local parser.
>>>>>
>>>>> This discrepancy between the documented behavior and the actual
>>>>> implementation of 'treesit--update-ranges-local' regarding the 
>>>>> offset
>>>>> argument might be a bug.
>>>
>>> Yes, it’s indeed a bug. I’ve pushed a fix for it. Thanks to you 
>>> both!
>>>
>>> Yuan
>>
>> Thank you!
>>
>> Would it be possible to also install the fix on emacs-30 branch?
>> --
>> Best regards, Roman
>
> Ah right, thanks for the reminder. I thought this is a regression 
> brought by the recent embedded parser change. Indeed, the local 
> parser range function in Emacs 30 doesn’t handle offset either. I’ve 
> pushed a separate fix to emacs-30.
>
> Yuan

Thank you!
--
Best regards, Roman




This bug report was last modified 4 days ago.

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