Class/Object

sclib.z

StateT

Related Docs: object StateT | package z

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case class StateT[F[_], S, A](runStateT: F[(S) ⇒ F[(A, S)]]) extends Product with Serializable

minimalistic State monad transformer

Example:
  1. scala> import sclib.z._
    scala> import sclib.ops.`try`._
    scala> import scala.util.Try
    scala> val pf = StateT{i: Int => if(i < 10) (i, i + 1).success else "BOOM".failure}
    scala> val action = for {
         |   a <- pf
         |   b <- pf
         | } yield a -> b
    scala> action.run(0)
    res1: scala.util.Try[((Int, Int), Int)] = Success(((0,1),2))
    scala> action.run(10)
    res2: scala.util.Try[((Int, Int), Int)] = Failure(java.lang.Exception: BOOM)
Linear Supertypes
Serializable, Serializable, Product, Equals, AnyRef, Any
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Inherited
  1. StateT
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
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Visibility
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Instance Constructors

  1. new StateT(runStateT: F[(S) ⇒ F[(A, S)]])

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Value Members

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

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  7. def eval(s: S)(implicit F: Monad[F]): F[A]

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  8. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. def flatMap[B](f: (A) ⇒ StateT[F, S, B])(implicit F: Monad[F]): StateT[F, S, B]

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  10. def flatMapF[B](f: (A) ⇒ F[B])(implicit F: Monad[F]): StateT[F, S, B]

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

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    Definition Classes
    AnyRef → Any
  12. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  13. def map[B](f: (A) ⇒ B)(implicit F: Monad[F]): StateT[F, S, B]

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

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    Definition Classes
    AnyRef
  15. final def notify(): Unit

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    Definition Classes
    AnyRef
  16. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  17. def run(s: S)(implicit F: Monad[F]): F[(A, S)]

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  18. val runStateT: F[(S) ⇒ F[(A, S)]]

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

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    Definition Classes
    AnyRef
  20. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  21. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  22. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

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