softwaremill / softwaremill/macwire

Add support for tupled results in autowire

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autowire
Dominant language
Scala
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Avg merge
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Merged PRs (30d)
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Description

Currently, to create more than one instance in autowire we need to define a helper case class that wraps target instances (e.g. https://github.com/softwaremill/bootzooka/pull/766/files#diff-a9ca80cae7dddc8a64f16da196fc18bf18aff6cbaa4a996a872c0228d1eaddc5R21)
We should be able to return tupled result instances instead.
Test case:

case class A()
case class B()

object Test {
  val tuple = autowire[(A, B)]()
}

val tuple: (A, B) = {
  import cats.effect.unsafe.implicits.global
  Test.tuple.allocated.unsafeRunSync()._1
}

require(tuple._1 == A())
require(tuple._2 == B())

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the autowire entry point and inspect how results are currently constructed for multiple instances. Use the Scala example in the issue as the acceptance case, then add or run a focused test showing that autowire(A, B) produces both instances and that the allocated result matches the expected tuple.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
tooling
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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