GNU bug report logs - #63086
29.0.90; go-ts-mode treesit-query-error during jit-lock

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Dmitry Gutov <dmitry <at> gutov.dev>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#63086: closed (29.0.90; go-ts-mode treesit-query-error during
 jit-lock)
Date: Wed, 03 May 2023 21:59:02 +0000

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

Your message dated Thu, 4 May 2023 00:58:22 +0300
with message-id <c27d1a02-5a0f-cb3f-42b4-1a3a0ba58678 <at> gutov.dev>
and subject line Re: bug#63086: 29.0.90; go-ts-mode treesit-query-error during jit-lock
has caused the debbugs.gnu.org bug report #63086,
regarding 29.0.90; go-ts-mode treesit-query-error during jit-lock
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
63086: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63086
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Jimmy Yuen Ho Wong <wyuenho <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.90; go-ts-mode treesit-query-error during jit-lock
Date: Wed, 26 Apr 2023 11:00:14 +0100

After visiting a go file and turning on M-x go-ts-mode, this following
message appears in the *Messages* buffer and the go buffer is not
highlighted as a result.

QuitError during redisplay: (jit-lock-function 1) signaled (treesit-query-error "Node type error at" 11 "[(false) (iota) (nil) (true)] @font-lock-constant-face (const_declaration (const_spec name: (identifier) @font-lock-constant-face))" "Debug the query with `treesit-query-validate'")
Error during redisplay: (jit-lock-function 1) signaled (treesit-query-error "Node type error at" 11 "[(false) (iota) (nil) (true)] @font-lock-constant-face (const_declaration (const_spec name: (identifier) @font-lock-constant-face))" "Debug the query with `treesit-query-validate'")



In GNU Emacs 29.0.90 (build 1, aarch64-apple-darwin22.4.0, NS
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Windowing system distributor 'Apple', version 10.3.2299
System Description:  macOS 13.3.1

Configured using:
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ns lcms2 multi-tty make-network-process native-compile emacs)

Memory information:
((conses 16 1333044 510649)
 (symbols 48 88292 63)
 (strings 32 284916 87828)
 (string-bytes 1 9093140)
 (vectors 16 174937)
 (vector-slots 8 4402069 715758)
 (floats 8 1250 2528)
 (intervals 56 2888 1407)
 (buffers 984 30))

[Message part 3 (message/rfc822, inline)]

From: Dmitry Gutov <dmitry <at> gutov.dev>
To: Randy Taylor <dev <at> rjt.dev>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 63086-done <at> debbugs.gnu.org, casouri <at> gmail.com,
 Jimmy Wong <wyuenho <at> gmail.com>
Subject: Re: bug#63086: 29.0.90; go-ts-mode treesit-query-error during jit-lock
Date: Thu, 4 May 2023 00:58:22 +0300

On 02/05/2023 03:29, Randy Taylor wrote:
> On Friday, April 28th, 2023 at 06:05, Dmitry Gutov <dmitry <at> gutov.dev> wrote:
>> On 28/04/2023 04:35, Randy Taylor wrote:
>>
>>> Maybe I'm missing something, but doesn't treesit-query-string with an empty string do nothing and always error, since it queries on whatever string you pass in?
>>
>>
>> It would return nil, not error (querying an empty buffer). And we should
>> be checking for error.
>>
>> This is the part that java-ts-mode--string-highlight-helper got right, BTW.
> 
> Sorry, I was operating under false assumptions and somehow convinced myself that treesit-query-string with an empty string returning nil meant the query wasn't supported, hence me thinking it achieved nothing. I am no longer under such delusions :).
> 
>>
>> go-ts-mode--iota-query-supported-p in your patch relies on the condition
>> that the file, at the time the mode is enabled, already contains at
>> least one "iota" node.
> 
> Good point. I've attached a patch using treesit-query-string with an empty string. It now works properly when iota is missing but inserted later.

Thanks! I've pushed this to emacs-29, so the bug can be closed.

Stylistically, I think I prefer the original way (with condition-case), 
but we'll have plenty of time to refine this on master later.

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