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Re: Remove js--treesit-backward-up-list or fix it
From: |
Theodor Thornhill |
Subject: |
Re: Remove js--treesit-backward-up-list or fix it |
Date: |
Sat, 29 Oct 2022 20:31:32 +0200 |
(added back in emacs-devel)
Hi!
>>
>> ```
>> const fooClient = new Foo(() => ({
>> | // <---- point is there
>> }));
>> ```
>> Which is not what we want. If we can keep that correct behavior in any
>> case I say we remove the hack. We could make an anchor helper named
>> something like 'parent-then-bol', but because there is no node here, we
>> cannot find the parent.
>>
>> What do you think?
>
> I added a rule that fixes it. Actually, when there is no node at
> point, parent is set to the smaller node that spans point, kind of
> like the immediate “parent” of that point. I’ve added some explanation
> in the manual.
>
Yes, It's probably a remnant from when the semantics were a bit
different between the treesit-node-on and treesit-node-at. I see it was
never there in ts-mode ;-)
>>
>> However, there are some problems with the newest revisions. During
>> })
>> .catch((r) => {
>> if (r.status < 200 || r.status >= 300) {
>> console.log(r);
>> }
>> });
>> };
>> ```
>
> Yes, sorry. I was naive with my implementation. Now it should be fixed.
>
Absolutely! Great work!
However... Try creating a js-mode buffer and type:
```
const foo = foo(() => {});
```
Because of all the stuff we set before we init tree sitter we get a
super unwanted behavior of the cursor jumping back to indentation for
every () {} etc. This is because of these settings, which are IMO pretty
bad defaults:
```
(setq-local electric-indent-chars
(append "{}():;," electric-indent-chars)) ;FIXME: js2-mode adds
"[]*".
(setq-local electric-layout-rules
'((?\; . after) (?\{ . after) (?\} . before)))
```
This could just be something forgotten in the indent implementation, but
in my book this is yet another example for why we shouldn't init like
this ;-)
--
Theo