Scala example source code file (Eq1.scala)

This example Scala source code file (Eq1.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

eq1, equal

The Eq1.scala Scala example source code

package scalaz

import std.stream._

trait Eq1[F[_]] {
  def eq1[A: Equal]: Equal[F[A]]
}

object Eq1 {

  def apply[F[_]](implicit F: Eq1[F]): Eq1[F] = F

  implicit val lazyOption: Eq1[LazyOption] =
    new Eq1[LazyOption] {
      def eq1[A: Equal] = Equal[LazyOption[A]]
    }

  implicit val stream: Eq1[Stream] =
    new Eq1[Stream] {
      def eq1[A: Equal] = Equal[Stream[A]]
    }

}