shajra
/ alacarte.scala
Last active
May 6, 2019 20:53
— forked from runarorama/gist:a8fab38e473fafa0921d
"datatypes a la carte" pattern in Scala
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| sealed trait Interact[A] | |
| case class Ask(prompt: String) | |
| extends Interact[String] | |
| case class Tell(msg: String) | |
| extends Interact[Unit] | |
| trait Monad[M[_]] { | |
| def pure[A](a: A): M[A] |