tree-sitter for Haskell

[p3rsik]

Hello! I was looking through the list of the supported languages and found out that tree-sitter isn't enabled(working?) for Haskell. May I ask why is that?

[the-mikedavis]

tree-sitter-haskell was disabled for a while because it caused build issues: 59f94d1.

It was re-enabled in #1417 which was released in 22.03. If you're running version v0.6.0 or older, haskell syntax highlighting is disabled.

Haskell syntax highlighting is enabled and working since that PR, though, and from a quick test seems to work normally on master or 22.05 (the current latest release).

[p3rsik]

Hey!

Yeah, syntax highlighting is working, I'm asking about features like "expand selection to parent node". Or did I miss something and that is not a tree-sitter feature?

[the-mikedavis]

Yep, that's a tree-sitter feature that should work out of the box for Haskell. If that doesn't work consistently you may be seeing the behavior fixed in #2877

Some tree-sitter driven features like function/class/comment textobjects need extra queries which are not written yet (needs a runtime/queries/haskell/textobjects.scm file with queries).

[p3rsik]

Thanks! Will wait for the version with that, I've got my answers)

Also thanks for the amazing editor :)

[p3rsik]

Wait, actually, where can I found the documentation on how to write a textobjects.scm file for Haskell?

[p3rsik]

Okay, I found it.