softwaremill / softwaremill/quicklens
Extracting given `F[_]` from modify function to the result.
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- Dominant language
- Scala
- Stars
- 852
- Forks
- 53
- PR merge metrics
- No merged PRs in 30d
Description
Given the code:
case class A(a: B)
case class B(b: Int)
def x(b: Int): Future[Int] = ???
I'd like to be able to write:
(a: A) => a.modify(_.a.b).using(x)
I'd expect it to yield Future[A]. I'd also expect it to work for any F[_] that has QuicklensFunctor type class instance.
Contributor guide
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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 tracing the existing modify(...).using API and the QuicklensFunctor type class mentioned in the issue. Define how the requested expression should produce Future[A], then verify that the same behavior works for any F[_] with a QuicklensFunctor instance.
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
- 25/100