GNU bug report logs - #74612
30.0.90; [PATCH] Allow passing nil to treesit-node-match-p

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Message #14 received at 74612 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Yuan Fu <casouri <at> gmail.com>
Cc: 74612 <at> debbugs.gnu.org
Subject: Re: bug#74612: 30.0.90; [PATCH] Allow passing nil to
 treesit-node-match-p
Date: Sun, 01 Dec 2024 11:59:58 +0200

> From: Yuan Fu <casouri <at> gmail.com>
> Date: Sun, 1 Dec 2024 00:31:05 -0800
> Cc: 74612 <at> debbugs.gnu.org
> 
> 
> 
> > On Nov 29, 2024, at 11:22 PM, Eli Zaretskii <eliz <at> gnu.org> wrote:
> > 
> >> From: Yuan Fu <casouri <at> gmail.com>
> >> Date: Fri, 29 Nov 2024 16:38:22 -0800
> >> 
> >> Eli, are you ok with this patch on emacs-30? Almost all tree-sitter node functions allows user to pass nil for NODE, so treesit-node-match-p should too.
> > 
> > Does this solve an actual problem you've seen somewhere (and if so,
> > which problem), or does it solve a potential problem that didn't
> > actually happen yet?
> 
> I encountered this problem (more like an inconvenience, since without this feature I’d need to test for nullness before passing a node to treesit-node-match-p) when using treesit-node-match-p for some new code I’m writing for master branch. Since (treesit-node-match-p node “type name”) is easier to write and shorter than (equal (treesit-node-type node) “type name”) or (string-match-p “type name regex” (treesit-node-type node)), I’ve been using it liberally in new code :)
> 
> > 
> > Also, does CHECK_TS_NODE allow nil or does it currently signal an
> > error?
> 
> CHECK_TS_NODE currently signals an error. All the tree-sitter node functions that accepts nil has the "if (NILP (node)) return Qnil” line before CHECK_TS_NODE (or treesit_check_node)
> 
> If you’re not too comfortable with the change, we can apply it to master. It wouldn’t create any backward-incompatibility since this change makes treesit-node-match-p more lenient on its argument, not stricter. The drawback is treesit-node-match-p will be a bit more annoying to use.

OK, please install on emacs-30, and thanks.

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