akka/akka-core

Scala 3 type inference issue with ActorSystemSetups#get

Offen

#29.990 geöffnet am 01.02.2021

 (0 Kommentare) (0 Reaktionen) (0 zugewiesene Personen)Scala (3.547 Forks)batch import
1 - triagedhelp wantedt:coret:scala-3

Repository-Metriken

Stars
 (13.277 Sterne)
PR-Merge-Metriken
 (Durchschn. Merge 8T 19h) (10 gemergte PRs in 30 T)

Beschreibung

Investigate and see if it surfaces in user code or just some curiosity in the tests/interaction with Scalatest.

Needing that extra type ascription is curious, but only about some weirdness with Scalatest === in Scala 3 right?

(The signature of get is ActorSystemSetups#get[T <: Setup: ClassTag]: Option[T] and we explicitly give it the T, so get here returns Option[DummySetup] and setup is DummySetup so Some(setup) should be Some[DummySetup] which extends Option[DummySetup])

Originally posted by @johanandren in https://github.com/akka/akka/pull/29956#discussion_r565905744

Contributor Guide