Scala example source code file (Strong.scala)

This example Scala source code file (Strong.scala) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Scala by Example" ^TM.

Learn more about this Scala project at its project page.

Java - Scala tags/keywords

profunctor, strong

The Strong.scala Scala example source code

package scalaz

////
/**
 * Strength on a product.
 */
////
trait Strong[=>:[_, _]] extends Profunctor[=>:] { self =>
  ////
  def first[A, B, C](fa: A =>: B): (A, C) =>: (B, C)

  def second[A, B, C](fa: A =>: B): (C, A) =>: (C, B)

  ////
  val strongSyntax = new scalaz.syntax.StrongSyntax[=>:] { def F = Strong.this }
}

object Strong {
  @inline def apply[F[_, _]](implicit F: Strong[F]): Strong[F] = F

  ////

  ////
}