typelevel / typelevel/cats-effect
Embed `cats.syntax.all._` methods directly into `IO`
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- Dominant language
- Scala
- Stars
- 2.2k
- Forks
- 576
- Avg merge
- 2d 11h
- Merged PRs (30d)
- 18
Description
Scala implicit search (search in the supertype of the companions of every part of the component type) allows us to enrich IO with .sequence, parMapN etc. without the need for the magic import cats.syntax.all._. Arguably, batteries included would improve user experience, especially for newcomers.
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 reviewing IO and Scala's implicit search, then compare the current cats.syntax.all._ enrichment path for methods such as sequence and parMapN. Done means deciding whether these methods can be exposed directly on IO without that import and documenting or implementing the resulting approach.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala
- Domain
- api, developer-experience
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100