GNU bug report logs - #61235
30.0.50; tree-sit: `treesit-node-check' lacks a way to tell if a node belongs to a deleted parser

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From: Yuan Fu <casouri <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 61235 <at> debbugs.gnu.org, Mickey Petersen <mickey <at> masteringemacs.org>
Subject: bug#61235: 30.0.50; tree-sit: `treesit-node-check' lacks a way to tell if a node belongs to a deleted parser
Date: Mon, 6 Feb 2023 19:00:30 -0800

> On Feb 6, 2023, at 7:21 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:
> 
>> From: Mickey Petersen <mickey <at> masteringemacs.org>
>> Cc: casouri <at> gmail.com, 61235 <at> debbugs.gnu.org
>> Date: Mon, 06 Feb 2023 14:08:46 +0000
>> 
>> All I want is a way for treesit-node-check to tell me if the node
>> belongs to a dead or alive parser.
> 
> That'd be fine by me, but the patch posted by Yuan was a different
> one.
> 
> Yuan, any reason not to extend treesit-node-check instead?

I did extend treesit-node-check in the patch. But I also added a function treesit-parser-live-p, which makes the same check but directly on a parser. It just made sense to me that if we let treesit-node-check check the nodes’ parser’s status, we’d also add a function to allow directly checking the status of a parser.

Micky, the function I added (and the extension to treesit-node-check) checks that the parser is not deleted AND its buffer is live. That makes the most sense to me, but would it cause any problem for your use case?

Yuan

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