Quick Fix (VSCode) No Longer Showing Fix Options

[theGhostJW]

Your environment

Which OS do you use?
Ubuntu (Windows WSL)

Which version of GHC do you use and how did you install it?
cabal: 3.10.2.1
ghc: 9.8.1

Which LSP client (editor/plugin) do you use?
vscode-haskell

Which version of HLS do you use and how did you install it?
2.6.0.0 via ghcUp

Have you configured HLS in any way (especially: a hie.yaml file)?
No

Summary

Previously, when there is a hint or error, quick fix options have been provided in VSCode (e.g. to use a correct variable name or update imports), and these could be applied automatically by selecting one of those options.

Now the only options provided are either to turn off the error via a pragma or copilot related fixes. I have tried disabling copilot and confirmed this does not fix the issue. Also, the suggested code action is provided in the hint.

I have double checked my HLS options selected in VS code and all the related code action / plugin options are checked.

Steps to reproduce

1. slightly change a variable name to be incorrect

2. hover over the error

3. => note the suggested fix:

   

4. invoke Quick Fix

5. => no related fix option is given

Expected behaviour

Fix option should be provided

[michaelpj]

HLS relies on GHC's diagnostics to power code actions, if you change the diagnostics that GHC emits we may not function the same. In particular, it looks like you have -fdeferred-out-of-scope-variables set, which is going to change the errors that GHC emits. Maybe we don't handle those correctly. Do the code actions come back if you stop setting that flag?

[wz1000]

we set -fdeferred-out-of-scope-variables in HLS.

I think this is just hls-refactor-plugin not being available for GHC 9.8 in 2.6.0.0

[michaelpj]

Good spot, that would do it.

[michaelpj]

Okay, I'm going to close this as expected behaviour then.

[theGhostJW]

OK thanks. Hope to see it become available a future release.

[Bodigrim]

@michaelpj @wz1000 is there an issue tracking hls-refactor-plugin with GHC 9.8? It seems to build fine, no?

[wz1000]

It will be included in the next release.