Implicit `catsKernelOrderingForOrder` is not very useful
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- Dominant language
- Scala
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Description
The problem is, when the compiler searches for an implicit Ordering[A], it has no reason to check the Order companion object. So it would have to be manually brought into scope e.g. import cats.kernel.Order._ or something.
Contributor guide
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
Start by reading kernel/src/main/scala/cats/kernel/Order.scala at lines 136-145 and review the issue discussion about implicit lookup and companion-object scope. Determine the intended way for Ordering[A] to discover cats.kernel.Order, then verify that the resulting behavior no longer requires manually importing Order._.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala
- Domain
- backend-api-design
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100