ndmitchell / ndmitchell/hlint

use `: []` is not correct in the presence of `OverloadedLists`

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Dominant language
Haskell
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Description

As the description says; it's not valid to suggest use :[] when using something like \x -> [x] in the presence of OverloadedLists. I hence think it would be good to not fire that lint by default.

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 locating the lint rule that suggests use :[] and the tests covering that suggestion. Reproduce the OverloadedLists case with \x -> [x], then add a regression test showing the lint is disabled by default. Done means the suggestion no longer fires by default in that context.

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
42/100

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