scalaz.syntax.PlusEmptySyntax.scala Maven / Gradle / Ivy

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package scalaz
package syntax

/** Wraps a value `self` and provides methods related to `PlusEmpty` */
final class PlusEmptyOps[F[_],A] private[syntax](val self: F[A])(implicit val F: PlusEmpty[F]) extends Ops[F[A]] {
  ////

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}

sealed trait ToPlusEmptyOps0 {
  implicit def ToPlusEmptyOpsUnapply[FA](v: FA)(implicit F0: Unapply[PlusEmpty, FA]) =
    new PlusEmptyOps[F0.M,F0.A](F0(v))(F0.TC)

}

trait ToPlusEmptyOps extends ToPlusEmptyOps0 with ToPlusOps {
  implicit def ToPlusEmptyOps[F[_],A](v: F[A])(implicit F0: PlusEmpty[F]) =
    new PlusEmptyOps[F,A](v)

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  def mempty[F[_], A](implicit F: PlusEmpty[F]): F[A] = F.empty[A]
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}

trait PlusEmptySyntax[F[_]] extends PlusSyntax[F] {
  implicit def ToPlusEmptyOps[A](v: F[A]): PlusEmptyOps[F, A] = new PlusEmptyOps[F,A](v)(PlusEmptySyntax.this.F)

  def F: PlusEmpty[F]
  ////

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}