typelevel / typelevel/cats

contramapN should come from syntax.contravariant._

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Dominant language
Scala
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Description

When using a la carte imports, I need to import cats.syntax.apply._ to be able to call contramapN, but I expected to import cats.syntax.contravariant._. Here's a scastie to demonstrate: https://scastie.scala-lang.org/mrdziuban/IZmraJ4BRlugdmXfeUWoLg/3

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Research direction

Start with the linked Scastie reproduction and trace how contramapN is exposed by the a la carte syntax imports. Check the contravariant and apply syntax entry points; done means importing cats.syntax.contravariant._ alone makes contramapN available.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
api
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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