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Scala example source code file (EqualSyntax.scala)

This example Scala source code file (EqualSyntax.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, equalops, equalsyntax, show, toequalops

The EqualSyntax.scala Scala example source code

package scalaz
package syntax

/** Wraps a value `self` and provides methods related to `Equal` */
final class EqualOps[F] private[syntax](val self: F)(implicit val F: Equal[F]) extends Ops[F] {

  final def ===(other: F): Boolean = F.equal(self, other)
  final def /==(other: F): Boolean = !F.equal(self, other)
  final def =/=(other: F): Boolean = /==(other)
  final def ≟(other: F): Boolean = F.equal(self, other)
  final def ≠(other: F): Boolean = !F.equal(self, other)

  /** Raises an exception unless self === other. */
  final def assert_===[B](other: B)(implicit S: Show[F], ev: B <:< F) =
      if (/==(other)) sys.error(S.shows(self) + " ≠ " + S.shows(ev(other)))


trait ToEqualOps  {
  implicit def ToEqualOps[F](v: F)(implicit F0: Equal[F]) =
    new EqualOps[F](v)



trait EqualSyntax[F]  {
  implicit def ToEqualOps(v: F): EqualOps[F] = new EqualOps[F](v)(EqualSyntax.this.F)

  def F: Equal[F]


Other Scala examples (source code examples)

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