LSP - Code action to add type Signature (Haskell)

[0rphee]

Summary

Coming from vscode, I expected to be able to add type signatures without typing them myself, but there aren't any code actions in helix for this feature (or so it seems).

Here's an example between helix (left) and vscode (right)

Screen.Recording.2022-11-25.at.10.28.48.p.m.mov

Reproduction Steps

1. hx test.hs
2. write a function, ex. addition x y = x + y
3. select function, + (search for code actions)
4. the code actions pop-up list contains an "add type signature" action

Instead, this happened:
The code pop-up list doesn't contain such an action

Helix log

~/.cache/helix/helix.log

PERRAS SAQUE 10 EN EL FINAL DE QUIMICA  

Platform

macOS

Terminal Emulator

Alacritty Version 0.11.0 (1)

Helix Version

22.08.1-437-g4791bd66

[kirawi]

I believe that these are snippets, which aren't yet supported. #395

[pascalkuthe]

Clsomg as duplicate of #395