Class/Object

scalaz

Free

Related Docs: object Free | package scalaz

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sealed abstract class Free[S[_], A] extends AnyRef

A free operational monad for some functor S. Binding is done using the heap instead of the stack, allowing tail-call elimination.

Source
Free.scala
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Value Members

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

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  2. final def ##(): Int

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

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  4. final def >>=[B](f: (A) ⇒ Free[S, B]): Free[S, B]

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    Alias for flatMap

  5. final def asInstanceOf[T0]: T0

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  6. final def bounce(f: (S[Free[S, A]]) ⇒ Free[S, A])(implicit S: Functor[S]): Free[S, A]

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    Runs a single step, using a function that extracts the resumption from its suspension functor.

  7. def clone(): AnyRef

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    Attributes
    protected[java.lang]
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    @throws( ... )
  8. def collect[B](implicit ev: =:=[Free[S, A], Source[B, A]]): (Vector[B], A)

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    Runs a Source all the way to the end, tail-recursively, collecting the produced values.

  9. def drain[E, B](source: Source[E, B])(implicit ev: =:=[Free[S, A], Sink[E, A]]): (A, B)

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    Feed the given source to this Sink.

  10. def drive[E, B](sink: Sink[Option[E], B])(implicit ev: =:=[Free[S, A], Source[E, A]]): (A, B)

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    Drive this Source with the given Sink.

  11. def duplicateF(implicit S: Functor[S]): Free[[a]Free[S, a], A]

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    Duplication in Free as a comonad in the endofunctor category.

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

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  13. def equals(arg0: Any): Boolean

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  14. def extendF[T[_]](f: ~>[[a]Free[S, a], T])(implicit S: Functor[S], T: Functor[T]): Free[T, A]

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    Extension in Free as a comonad in the endofunctor category.

  15. def extractF(implicit S: Monad[S]): S[A]

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    Extraction from Free as a comonad in the endofunctor category.

  16. def feed[E](ss: Stream[E])(implicit ev: =:=[Free[S, A], Sink[E, A]]): A

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    Feed the given stream to this Source.

  17. def finalize(): Unit

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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  18. final def flatMap[B](f: (A) ⇒ Free[S, B]): Free[S, B]

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    Binds the given continuation to the result of this computation.

    Binds the given continuation to the result of this computation. All left-associated binds are reassociated to the right.

  19. final def flatMapSuspension[T[_]](f: ~>[S, [α]Free[T, α]])(implicit S: Functor[S]): Free[T, A]

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    Substitutes a free monad over the given functor into the suspension functor of this program.

    Substitutes a free monad over the given functor into the suspension functor of this program. Free is a monad in an endofunctor category and this is its monadic bind.

  20. final def fold[B](r: (A) ⇒ B, s: (S[Free[S, A]]) ⇒ B)(implicit S: Functor[S]): B

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    Catamorphism.

    Catamorphism. Run the first given function if Return, otherwise, the second given function.

  21. final def foldMap[M[_]](f: ~>[S, M])(implicit S: Functor[S], M: Monad[M]): M[A]

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    Catamorphism for Free.

    Catamorphism for Free. Runs to completion, mapping the suspension with the given transformation at each step and accumulating into the monad M.

  22. final def foldRight[G[_]](z: ~>[Id.Id, G])(f: ~>[[α]S[G[α]], G])(implicit S: Functor[S]): G[A]

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    Folds this free recursion to the right using the given natural transformations.

  23. final def foldRun[B](b: B)(f: (B, S[Free[S, A]]) ⇒ (B, Free[S, A]))(implicit S: Functor[S]): (B, A)

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    Runs to completion, allowing the resumption function to thread an arbitrary state of type B.

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

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  25. final def go(f: (S[Free[S, A]]) ⇒ Free[S, A])(implicit S: Functor[S]): A

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    Runs to completion, using a function that extracts the resumption from its suspension functor.

  26. def hashCode(): Int

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  27. final def isInstanceOf[T0]: Boolean

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  28. final def map[B](f: (A) ⇒ B): Free[S, B]

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  29. final def mapFirstSuspension(f: ~>[S, S])(implicit S: Functor[S]): Free[S, A]

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    Modifies the first suspension with the given natural transformation.

  30. final def mapSuspension[T[_]](f: ~>[S, T])(implicit S: Functor[S], T: Functor[T]): Free[T, A]

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    Changes the suspension functor by the given natural transformation.

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

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  32. final def notify(): Unit

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  33. final def notifyAll(): Unit

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  34. final def resume(implicit S: Functor[S]): \/[S[Free[S, A]], A]

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    Evaluates a single layer of the free monad *

    Evaluates a single layer of the free monad *

    Annotations
    @tailrec()
  35. def run(implicit ev: =:=[Free[S, A], Trampoline[A]]): A

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    Runs a trampoline all the way to the end, tail-recursively.

  36. final def runM[M[_]](f: (S[Free[S, A]]) ⇒ M[Free[S, A]])(implicit S: Functor[S], M: Monad[M]): M[A]

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    Runs to completion, using a function that maps the resumption from S to a monad M.

    Runs to completion, using a function that maps the resumption from S to a monad M.

    Since

    7.0.1

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

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  38. def toString(): String

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  39. final def wait(): Unit

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    @throws( ... )
  40. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )
  41. final def wait(arg0: Long): Unit

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  42. final def zap[G[_], B](fs: Cofree[G, (A) ⇒ B])(implicit S: Functor[S], G: Functor[G], d: Zap[S, G]): B

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    Applies a function in a comonad to the corresponding value in this monad, annihilating both.

  43. final def zapWith[G[_], B, C](bs: Cofree[G, B])(f: (A, B) ⇒ C)(implicit S: Functor[S], G: Functor[G], d: Zap[S, G]): C

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    Applies a function f to a value in this monad and a corresponding value in the dual comonad, annihilating both.

  44. def zipWith[B, C](tb: Free[S, B])(f: (A, B) ⇒ C)(implicit S: Functor[S]): Free[S, C]

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    Interleave this computation with another, combining the results with the given function.

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