com.sksamuel.elastic4s.Functor.scala Maven / Gradle / Ivy
package com.sksamuel.elastic4s
import scala.concurrent.{ExecutionContext, Future}
import scala.language.higherKinds
trait Functor[F[_]] {
def map[A, B](fa: F[A])(f: A => B): F[B]
}
object Functor {
def apply[F[_]: Functor](): Functor[F] = implicitly[Functor[F]]
implicit def FutureFunctor(implicit ec: ExecutionContext = ExecutionContext.Implicits.global): Functor[Future] =
new Functor[Future] {
override def map[A, B](fa: Future[A])(f: A => B): Future[B] = fa.map(f)
}
}