scalaz

UnwriterT

final case class UnwriterT[F[_], U, A](run: F[(U, A)]) extends Product with Serializable

This data type is isomorphic to WriterT, however, it is NOT a monad.

It implements flatMap+map and drops the write value. There is no Monoid or Semigroup required. There is no point operation. You can switch between WriterT and UnwriterT with unary_+ and unary_-.

Self Type
UnwriterT[F, U, A]
Source
UnwriterT.scala
Linear Supertypes
Serializable, Serializable, Product, Equals, AnyRef, Any
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Inherited
  1. UnwriterT
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new UnwriterT(run: F[(U, A)])

Value Members

  1. final def !=(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Definition Classes
    AnyRef → Any

  3. final def ==(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  4. def ap[B](f: ⇒ UnwriterT[F, U, (A) ⇒ B])(implicit F: Apply[F]): UnwriterT[F, U, B]

  5. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  6. def bimap[C, D](f: (U) ⇒ C, g: (A) ⇒ D)(implicit F: Functor[F]): UnwriterT[F, C, D]

  7. def bitraverse[G[_], C, D](f: (U) ⇒ G[C], g: (A) ⇒ G[D])(implicit G: Applicative[G], F: Traverse[F]): G[UnwriterT[F, C, D]]

  8. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  9. def colocal[X](f: (U) ⇒ X)(implicit F: Functor[F]): UnwriterT[F, X, A]

  10. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  11. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  12. def flatMap[B](f: (A) ⇒ UnwriterT[F, U, B])(implicit F: Bind[F]): UnwriterT[F, U, B]

  13. def foldRight[B](z: ⇒ B)(f: (A, ⇒ B) ⇒ B)(implicit F: Foldable[F]): B

  14. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  15. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  16. def leftMap[C](f: (U) ⇒ C)(implicit F: Functor[F]): UnwriterT[F, C, A]

  17. def map[B](f: (A) ⇒ B)(implicit F: Functor[F]): UnwriterT[F, U, B]

  18. def mapUnwritten[X](f: (U) ⇒ X)(implicit F: Functor[F]): UnwriterT[F, X, A]

  19. def mapValue[X, B](f: ((U, A)) ⇒ (X, B))(implicit F: Functor[F]): UnwriterT[F, X, B]

  20. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  21. final def notify(): Unit

    Definition Classes
    AnyRef

  22. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  23. def on: WriterT[F, U, A]

  24. val run: F[(U, A)]

  25. def swap(implicit F: Functor[F]): UnwriterT[F, A, U]

  26. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  27. def traverse[G[_], B](f: (A) ⇒ G[B])(implicit G: Applicative[G], F: Traverse[F]): G[UnwriterT[F, U, B]]

  28. def unary_+: WriterT[F, U, A]

    alias for on

  29. def unwritten(implicit F: Functor[F]): F[U]

  30. def value(implicit F: Functor[F]): F[A]

  31. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  32. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  33. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  34. def wpoint[G[_]](implicit F: Functor[F], P: Applicative[G]): UnwriterT[F, G[U], A]

Deprecated Value Members

  1. def foreach[B](f: (A) ⇒ Unit)(implicit E: Each[F]): Unit

    Annotations
    @deprecated
    Deprecated

    (Since version 7.1) Each/foreach is deprecated

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

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