Add a Crosswalk typeclass
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Nobody has claimed this yet.
Triage needed
- Dominant language
- Scala
- Stars
- 5.5k
- Forks
- 1.2k
- Avg merge
- 2d 10h
- Merged PRs (30d)
- 5
Description
Crosswalk allows iterating over a data structure using Align to accumulate, similar to how Traverse allows iterating over a data structure using Applicative. Haskell has this typeclass right here: https://hackage.haskell.org/package/semialign-1/docs/Data-Crosswalk.html
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 with the linked Data-Crosswalk documentation and inspect the existing Traverse and Align abstractions named in the issue. Done means Cats provides a Crosswalk typeclass with behavior matching the described Align-based traversal.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100