Scala example source code file (EnumSyntax.scala)

This example Scala source code file (EnumSyntax.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

enumsyntax, ephemeralstream, int, list, option, ordersyntax, toenumops, toorderops

The EnumSyntax.scala Scala example source code

package scalaz
package syntax

/** Wraps a value `self` and provides methods related to `Enum` */
final class EnumOps[F] private[syntax](val self: F)(implicit val F: Enum[F]) extends Ops[F] {
  ////
  final def succ: F =
    F succ self

  final def -+-(n: Int): F =
    F.succn(n, self)

  final def succx: Option[F] =
    F.succx.apply(self)

  final def pred: F =
    F pred self

  final def ---(n: Int): F =
    F.predn(n, self)

  final def predx: Option[F] =
    F.predx.apply(self)

  final def from: EphemeralStream[F] =
    F.from(self)

  final def fromStep(step: Int): EphemeralStream[F] =
    F.fromStep(step, self)

  final def |=>(to: F): EphemeralStream[F] =
    F.fromTo(self, to)

  final def |->(to: F): List[F] =
    F.fromToL(self, to)

  final def |==>(step: Int, to: F): EphemeralStream[F] =
    F.fromStepTo(step, self, to)

  final def |-->(step: Int, to: F): List[F] =
    F.fromStepToL(step, self, to)

  ////
}

trait ToEnumOps extends ToOrderOps {
  implicit def ToEnumOps[F](v: F)(implicit F0: Enum[F]) =
    new EnumOps[F](v)

  ////

  ////
}

trait EnumSyntax[F] extends OrderSyntax[F] {
  implicit def ToEnumOps(v: F): EnumOps[F] = new EnumOps[F](v)(EnumSyntax.this.F)

  def F: Enum[F]
  ////

  ////
}