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Scala example source code file (MonoidSyntax.scala)

This example Scala source code file (MonoidSyntax.scala) is included in the "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

boolean, equal, int, monoid, monoidsyntax, semigroupsyntax, tomonoidops, tosemigroupops

The MonoidSyntax.scala Scala example source code

package scalaz
package syntax

/** Wraps a value `self` and provides methods related to `Monoid` */
final class MonoidOps[F] private[syntax](val self: F)(implicit val F: Monoid[F]) extends Ops[F] {
  final def multiply(n: Int): F = F.multiply(self, n)

  final def ifEmpty[A](tv: => A)(fv: => A)(implicit e: Equal[F]): A = F.ifEmpty(self)(tv)(fv)

  final def isMZero(implicit e: Equal[F]): Boolean = F.isMZero(self)

  final def onNotEmpty[A](v: => A)(implicit ma: Monoid[A], e: Equal[F]): A = F.onNotEmpty(self)(v)

  final def onEmpty[A](v: => A)(implicit ma: Monoid[A], e: Equal[F]): A = F.onEmpty(self)(v)

trait ToMonoidOps extends ToSemigroupOps {
  implicit def ToMonoidOps[F](v: F)(implicit F0: Monoid[F]) =
    new MonoidOps[F](v)


  def mzero[F](implicit F: Monoid[F]): F =
  def ∅[F](implicit F: Monoid[F]): F =

trait MonoidSyntax[F] extends SemigroupSyntax[F] {
  implicit def ToMonoidOps(v: F): MonoidOps[F] = new MonoidOps[F](v)(MonoidSyntax.this.F)

  def F: Monoid[F]
  def mzero(implicit F: Monoid[F]): F =
  def ∅(implicit F: Monoid[F]): F =

Other Scala examples (source code examples)

Here is a short list of links related to this Scala MonoidSyntax.scala source code file:

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