Scala example source code file (Cozip.scala)

This example Scala source code file (Cozip.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.

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Java - Scala tags/keywords

cozip

The Cozip.scala Scala example source code

package scalaz

////
/**
 *
 */
////
trait Cozip[F[_]]  { self =>
  ////
  def cozip[A, B](x: F[A \/ B]): (F[A] \/ F[B])

  // derived functions
  def cozip3[A, B, C](x: F[A \/ (B \/ C)]): (F[A] \/ (F[B] \/ F[C])) =
    cozip(x).map(cozip(_))

  def cozip4[A, B, C, D](x: F[A \/ (B \/ (C \/ D))]): (F[A] \/ (F[B] \/ (F[C] \/ F[D]))) =
    cozip(x).map(cozip(_) map (cozip(_)))

  def cozip5[A, B, C, D, E](x: F[(A \/ (B \/ (C \/ (D \/ E))))]): (F[A] \/ (F[B] \/ (F[C] \/ (F[D] \/ F[E])))) =
    cozip(x).map(cozip(_) map (cozip(_) map (cozip(_))))

  def cozip6[A, B, C, D, E, G](x: F[(A \/ (B \/ (C \/ (D \/ (E \/ G)))))]): (F[A] \/ (F[B] \/ (F[C] \/ (F[D] \/ (F[E] \/ F[G]))))) =
    cozip(x).map(cozip(_) map (cozip(_) map (cozip(_) map (cozip(_)))))

  def cozip7[A, B, C, D, E, G, H](x: F[(A \/ (B \/ (C \/ (D \/ (E \/ (G \/ H))))))]): (F[A] \/ (F[B] \/ (F[C] \/ (F[D] \/ (F[E] \/ (F[G] \/ F[H])))))) =
    cozip(x).map(cozip(_) map (cozip(_) map (cozip(_) map (cozip(_) map(cozip(_))))))

  ////
  val cozipSyntax = new scalaz.syntax.CozipSyntax[F] { def F = Cozip.this }
}

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

  ////
  def cofzip[F[_], A, B](x: F[A \/ B])(implicit F: Cozip[F]): (F[A] \/ F[B]) = F.cozip(x)
  def cofzip3[F[_], A, B, C](x: F[A \/ (B \/ C)])(implicit F: Cozip[F]): (F[A] \/ (F[B] \/ F[C])) = F.cozip3(x)
  def cofzip4[F[_], A, B, C, D](x: F[A \/ (B \/ (C \/ D))])(implicit F: Cozip[F]): (F[A] \/ (F[B] \/ (F[C] \/ F[D]))) = F.cozip4(x)
  def cofzip5[F[_], A, B, C, D, E](x: F[(A \/ (B \/ (C \/ (D \/ E))))])(implicit F: Cozip[F]): (F[A] \/ (F[B] \/ (F[C] \/ (F[D] \/ F[E])))) = F.cozip5(x)
  def cofzip6[F[_], A, B, C, D, E, G](x: F[(A \/ (B \/ (C \/ (D \/ (E \/ G)))))])(implicit F: Cozip[F]): (F[A] \/ (F[B] \/ (F[C] \/ (F[D] \/ (F[E] \/ F[G]))))) = F.cozip6(x)
  def cofzip7[F[_], A, B, C, D, E, G, H](x: F[(A \/ (B \/ (C \/ (D \/ (E \/ (G \/ H))))))])(implicit F: Cozip[F]): (F[A] \/ (F[B] \/ (F[C] \/ (F[D] \/ (F[E] \/ (F[G] \/ F[H])))))) = F.cozip7(x)
  ////
}