hints for "new" GHC versions
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Description
You often know the lower bound on the GHC versions you support. when older GHCs are excluded new hints become possible.
For example: on GHC 7.10 you no longer need {-# LANGUAGE DeriveDataTypeable #-} and deriving Typeable and hlint could suggest to remove these. Another possible 7.10 hint is (Functor m, Monad m) ==> Monad m.
Can we add hints like these as opt-ins?
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No files, tests, or entry points are named. Start by reviewing how HLint currently defines opt-in hints and handles supported GHC versions, then compare that with the two examples in the issue. Done means users can opt into version-specific hints, including the Typeable cleanup and the redundant Functor/Monad constraint suggestion.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- haskell
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100