Applying hints fails

[C-alcium]

The plugin wants to apply reduction here

When I click on the quick fix option

It then hangs indefinitely

I imagine it's something that I'm doing wrong but I can't really see anything extra in the documentation that I need to do to get hints working. Anything I can do to get this working?

[jneira]

Hi, apply-refact is failing and keeping the alert opened, like

• Applying an hlint quick fix never finishes (better error handling) haskell-language-server#646

The root cause probable is

• hlint seeking unavailable file /opt/ghc/8.8.4/lib/ghc-8.8.4/settings haskell-language-server#591

which fortunately has a workaround

[david9991]

Same issue here if specified pragma.
{-# LANGUAGE OverloadedStrings, LambdaCase #-}

Got following error:

2021-01-22 14:56:44.911783 [ThreadId 49696] - finish: hlint (took 0.00s)
[Error - 2:56:44 PM] Request workspace/executeCommand failed.
  Message: (RealSrcSpan SrcSpanOneLine "template0" 11 17 21,"Illegal lambda-case (use -XLambdaCase)")
CallStack (from HasCallStack):
  error, called at src/Refact/Internal.hs:84:13 in pply-rfct-0.8.2.1-68f8d423:Refact.Internal
  Code: -32603 

[jneira]

hls master already has the fix for this, so the next release will have too

[michaelschufi]

@jneira The extension now uses HLS 1.0.0 but I'm still experiencing the issue. Any idea why?

Edit: For me it's not stuck, but it just doesn't do anything.

[jneira]

@michaelschufi thanks for reporting it, i am afraid that it was fixed in hls-0.8.0 for ghc < 8.10, after the last comment in this issue and it has reproduced again for hls-1.0.0 and ghc == 8.10
But, good news, it is fixed again, only in master (again), so the next release will have too (again) 😄

[michaelschufi]

Cool. Thank you 👍
Just starting to learn the language and the linter's hints are really great for this. But I'm excited to apply the hints automatically :P

[jneira]

The bug is fixed in master and it would be included in the next release