ndmitchell / ndmitchell/hlint

Anything imported hidden should be used

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#338 8 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Haskell
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Description

If you import Foo hiding (bar) then bar should be used in the document. Check that GHC doesn't give an error on this first.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the import Foo hiding (bar) case and compare HLint's result with GHC, as requested in the issue. Trace how hidden imports are checked for usage; done when bar is treated as used in the document and HLint no longer reports an incorrect error.

Written by the indexing model from the issue text.

Assessment

Tech stack
haskell
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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