Trait/Object

cats

MonadError

Related Docs: object MonadError | package cats

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trait MonadError[F[_], E] extends ApplicativeError[F, E] with Monad[F]

A monad that also allows you to raise and or handle an error value.

This type class allows one to abstract over error-handling monads.

Linear Supertypes
Monad[F], FlatMap[F], ApplicativeError[F, E], Applicative[F], Apply[F], ApplyArityFunctions[F], Cartesian[F], Functor[F], Invariant[F], Serializable, Serializable, AnyRef, Any
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Inherited
  1. MonadError
  2. Monad
  3. FlatMap
  4. ApplicativeError
  5. Applicative
  6. Apply
  7. ApplyArityFunctions
  8. Cartesian
  9. Functor
  10. Invariant
  11. Serializable
  12. Serializable
  13. AnyRef
  14. Any
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Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def flatMap[A, B](fa: F[A])(f: (A) ⇒ F[B]): F[B]

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    Definition Classes
    FlatMap

  2. abstract def handleErrorWith[A](fa: F[A])(f: (E) ⇒ F[A]): F[A]

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    Handle any error, potentially recovering from it, by mapping it to an F[A] value.

    Handle any error, potentially recovering from it, by mapping it to an F[A] value.

    Definition Classes
    ApplicativeError
    See also

    recoverWith to recover from only certain errors.

    handleError to handle any error by simply mapping it to an A value instead of an F[A].

  3. abstract def pure[A](x: A): F[A]

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    pure lifts any value into the Applicative Functor.

    pure lifts any value into the Applicative Functor.

    Applicative[Option].pure(10) = Some(10)

    Definition Classes
    Applicative

  4. abstract def raiseError[A](e: E): F[A]

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    Lift an error into the F context.

    Lift an error into the F context.

    Definition Classes
    ApplicativeError

Concrete 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. def ap[A, B](ff: F[(A) ⇒ B])(fa: F[A]): F[B]

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    Given a value and a function in the Apply context, applies the function to the value.

    Given a value and a function in the Apply context, applies the function to the value.

    Definition Classes
    FlatMap → Apply

  5. def ap10[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  6. def ap11[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  7. def ap12[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  8. def ap13[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  9. def ap14[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  10. def ap15[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  11. def ap16[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  12. def ap17[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  13. def ap18[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  14. def ap19[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  15. def ap2[A, B, Z](ff: F[(A, B) ⇒ Z])(fa: F[A], fb: F[B]): F[Z]

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    ap2 is a binary version of ap, defined in terms of ap.

    ap2 is a binary version of ap, defined in terms of ap.

    Definition Classes
    Apply

  16. def ap20[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  17. def ap21[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19], f20: F[A20]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  18. def ap22[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19], f20: F[A20], f21: F[A21]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  19. def ap3[A0, A1, A2, Z](f: F[(A0, A1, A2) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  20. def ap4[A0, A1, A2, A3, Z](f: F[(A0, A1, A2, A3) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  21. def ap5[A0, A1, A2, A3, A4, Z](f: F[(A0, A1, A2, A3, A4) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  22. def ap6[A0, A1, A2, A3, A4, A5, Z](f: F[(A0, A1, A2, A3, A4, A5) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  23. def ap7[A0, A1, A2, A3, A4, A5, A6, Z](f: F[(A0, A1, A2, A3, A4, A5, A6) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  24. def ap8[A0, A1, A2, A3, A4, A5, A6, A7, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7]): F[Z]

    Permalink
    Definition Classes
    ApplyArityFunctions

  25. def ap9[A0, A1, A2, A3, A4, A5, A6, A7, A8, Z](f: F[(A0, A1, A2, A3, A4, A5, A6, A7, A8) ⇒ Z])(f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8]): F[Z]

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    Definition Classes
    ApplyArityFunctions

  26. def as[A, B](fa: F[A], b: B): F[B]

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    Replaces the A value in F[A] with the supplied value.

    Replaces the A value in F[A] with the supplied value.

    Definition Classes
    Functor

  27. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  28. def attempt[A](fa: F[A]): F[Xor[E, A]]

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    Handle errors by turning them into cats.data.Xor.Left values.

    Handle errors by turning them into cats.data.Xor.Left values.

    If there is no error, then an cats.data.Xor.Right value will be returned instead.

    All non-fatal errors should be handled by this method.

    Definition Classes
    ApplicativeError

  29. def attemptT[A](fa: F[A]): XorT[F, E, A]

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    Similar to attempt, but wraps the result in a cats.data.XorT for convenience.

    Similar to attempt, but wraps the result in a cats.data.XorT for convenience.

    Definition Classes
    ApplicativeError

  30. def clone(): AnyRef

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

  31. def compose[G[_]](implicit GG: Applicative[G]): Applicative[[α]F[G[α]]]

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    Two sequentially dependent Applicatives can be composed.

    Two sequentially dependent Applicatives can be composed.

    The composition of Applicatives F and G, F[G[x]], is also an Applicative

    Applicative[Option].compose[List].pure(10) = Some(List(10))

    Definition Classes
    Applicative

  32. def compose[G[_]](implicit GG: Apply[G]): Apply[[X]F[G[X]]]

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    Two sequentially dependent Applys can be composed.

    Two sequentially dependent Applys can be composed.

    The composition of Applys F and G, F[G[x]], is also an Apply.

    Example:

    scala> import cats.Apply
scala> import cats.implicits._
scala> val ap = Apply[Option].compose[List]
scala> val x: Option[List[Int]] = Some(List(1, 2))
scala> val y: Option[List[Int]] = Some(List(10, 20))
scala> ap.map2(x, y)(_ + _)
res0: Option[List[Int]] = Some(List(11, 21, 12, 22))
    Definition Classes
    Apply

  33. def compose[G[_]](implicit GG: Functor[G]): Functor[[X]F[G[X]]]

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    Compose this functor F with a functor G to produce a composite Functor on G[F[_]], with a map method which uses an A => B to map a G[F[A]] to a G[F[B]].

    Compose this functor F with a functor G to produce a composite Functor on G[F[_]], with a map method which uses an A => B to map a G[F[A]] to a G[F[B]].

    Definition Classes
    Functor

  34. def compose[G[_]](implicit arg0: Invariant[G], GG: Invariant[G]): Invariant[[X]F[G[X]]]

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    Compose 2 invariant Functors F and G to get a new Invariant Functor for F[G[_]].

    Compose 2 invariant Functors F and G to get a new Invariant Functor for F[G[_]].

    Definition Classes
    Invariant

  35. def composeWithContravariant[G[_]](implicit GG: Contravariant[G]): Contravariant[[X]F[G[X]]]

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    Compose this functor F with a Contravariant Functor G to produce a new Contravariant Functor on F[G[_]].

    Compose this functor F with a Contravariant Functor G to produce a new Contravariant Functor on F[G[_]].

    Definition Classes
    Functor → Invariant

  36. def composeWithFunctor[G[_]](implicit arg0: Functor[G]): Functor[[X]F[G[X]]]

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    Compose the Invariant Functor F with a normal (Covariant) Functor to get a new Invariant Functor for [F[G[_]].

    Compose the Invariant Functor F with a normal (Covariant) Functor to get a new Invariant Functor for [F[G[_]].

    Definition Classes
    Functor → Invariant

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

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    Definition Classes
    AnyRef

  38. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  39. def finalize(): Unit

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

  40. def flatten[A](ffa: F[F[A]]): F[A]

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    also commonly called join

    also commonly called join

    Definition Classes
    FlatMap

  41. def fproduct[A, B](fa: F[A])(f: (A) ⇒ B): F[(A, B)]

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    Tuple the values in fa with the result of applying a function with the value

    Tuple the values in fa with the result of applying a function with the value

    Definition Classes
    Functor

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

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    Definition Classes
    AnyRef → Any

  43. def handleError[A](fa: F[A])(f: (E) ⇒ A): F[A]

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    Handle any error, by mapping it to an A value.

    Handle any error, by mapping it to an A value.

    Definition Classes
    ApplicativeError
    See also

    recover to only recover from certain errors.

    handleErrorWith to map to an F[A] value instead of simply an A value.

  44. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  45. def ifM[B](fa: F[Boolean])(ifTrue: ⇒ F[B], ifFalse: ⇒ F[B]): F[B]

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    if lifted into monad.

    if lifted into monad.

    Definition Classes
    FlatMap

  46. def imap[A, B](fa: F[A])(f: (A) ⇒ B)(fi: (B) ⇒ A): F[B]

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    Definition Classes
    Functor → Invariant

  47. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  48. def lift[A, B](f: (A) ⇒ B): (F[A]) ⇒ F[B]

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    Lift a function f to operate on Functors

    Lift a function f to operate on Functors

    Definition Classes
    Functor

  49. def map[A, B](fa: F[A])(f: (A) ⇒ B): F[B]

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    Definition Classes
    Monad → Applicative → Functor

  50. def map10[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9) ⇒ Z): F[Z]

    Permalink
    Definition Classes
    ApplyArityFunctions

  51. def map11[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10) ⇒ Z): F[Z]

    Permalink
    Definition Classes
    ApplyArityFunctions

  52. def map12[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11) ⇒ Z): F[Z]

    Permalink
    Definition Classes
    ApplyArityFunctions

  53. def map13[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12) ⇒ Z): F[Z]

    Permalink
    Definition Classes
    ApplyArityFunctions

  54. def map14[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13) ⇒ Z): F[Z]

    Permalink
    Definition Classes
    ApplyArityFunctions

  55. def map15[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14) ⇒ Z): F[Z]

    Permalink
    Definition Classes
    ApplyArityFunctions

  56. def map16[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15) ⇒ Z): F[Z]

    Permalink
    Definition Classes
    ApplyArityFunctions

  57. def map17[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  58. def map18[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  59. def map19[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  60. def map2[A, B, Z](fa: F[A], fb: F[B])(f: (A, B) ⇒ Z): F[Z]

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    Applies the pure (binary) function f to the effectful values fa and fb.

    Applies the pure (binary) function f to the effectful values fa and fb.

    map2 can be seen as a binary version of cats.Functor#map.

    Definition Classes
    Apply

  61. def map20[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  62. def map21[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19], f20: F[A20])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  63. def map22[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19], f20: F[A20], f21: F[A21])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  64. def map2Eval[A, B, Z](fa: F[A], fb: Eval[F[B]])(f: (A, B) ⇒ Z): Eval[F[Z]]

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    Similar to map2 but uses Eval to allow for laziness in the F[B] argument.

    Similar to map2 but uses Eval to allow for laziness in the F[B] argument. This can allow for "short-circuiting" of computations.

    NOTE: the default implementation of map2Eval does does not short-circuit computations. For data structures that can benefit from laziness, Apply instances should override this method.

    In the following example, x.map2(bomb)(_ + _) would result in an error, but map2Eval "short-circuits" the computation. x is None and thus the result of bomb doesn't even need to be evaluated in order to determine that the result of map2Eval should be None.

    scala> import cats.{Eval, Later}
scala> import cats.implicits._
scala> val bomb: Eval[Option[Int]] = Later(sys.error("boom"))
scala> val x: Option[Int] = None
scala> x.map2Eval(bomb)(_ + _).value
res0: Option[Int] = None
    Definition Classes
    Apply

  65. def map3[A0, A1, A2, Z](f0: F[A0], f1: F[A1], f2: F[A2])(f: (A0, A1, A2) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  66. def map4[A0, A1, A2, A3, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3])(f: (A0, A1, A2, A3) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  67. def map5[A0, A1, A2, A3, A4, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4])(f: (A0, A1, A2, A3, A4) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  68. def map6[A0, A1, A2, A3, A4, A5, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5])(f: (A0, A1, A2, A3, A4, A5) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  69. def map7[A0, A1, A2, A3, A4, A5, A6, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6])(f: (A0, A1, A2, A3, A4, A5, A6) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  70. def map8[A0, A1, A2, A3, A4, A5, A6, A7, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7])(f: (A0, A1, A2, A3, A4, A5, A6, A7) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  71. def map9[A0, A1, A2, A3, A4, A5, A6, A7, A8, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8])(f: (A0, A1, A2, A3, A4, A5, A6, A7, A8) ⇒ Z): F[Z]

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    Definition Classes
    ApplyArityFunctions

  72. def mproduct[A, B](fa: F[A])(f: (A) ⇒ F[B]): F[(A, B)]

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    Pair A with the result of function application.

    Pair A with the result of function application.

    Definition Classes
    FlatMap

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

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    Definition Classes
    AnyRef

  74. final def notify(): Unit

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    Definition Classes
    AnyRef

  75. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  76. def product[A, B](fa: F[A], fb: F[B]): F[(A, B)]

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    Definition Classes
    FlatMap → Apply → Cartesian

  77. def pureEval[A](x: Eval[A]): F[A]

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    pureEval lifts any value into the Applicative Functor.

    pureEval lifts any value into the Applicative Functor.

    This variant supports optional laziness.

    Definition Classes
    Applicative

  78. def recover[A](fa: F[A])(pf: PartialFunction[E, A]): F[A]

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    Recover from certain errors by mapping them to an A value.

    Recover from certain errors by mapping them to an A value.

    Definition Classes
    ApplicativeError
    See also

    recoverWith to recover from certain errors by mapping them to F[A] values.

    handleError to handle any/all errors.

  79. def recoverWith[A](fa: F[A])(pf: PartialFunction[E, F[A]]): F[A]

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    Recover from certain errors by mapping them to an F[A] value.

    Recover from certain errors by mapping them to an F[A] value.

    Definition Classes
    ApplicativeError
    See also

    recover to recover from certain errors by mapping them to A values.

    handleErrorWith to handle any/all errors.

  80. def replicateA[A](n: Int, fa: F[A]): F[List[A]]

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    Given fa and n, apply fa n times to construct an F[List[A]] value.

    Given fa and n, apply fa n times to construct an F[List[A]] value.

    Definition Classes
    Applicative

  81. def sequence[G[_], A](as: G[F[A]])(implicit G: Traverse[G]): F[G[A]]

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    Definition Classes
    Applicative

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

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    Definition Classes
    AnyRef

  83. def toString(): String

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    Definition Classes
    AnyRef → Any

  84. def traverse[A, G[_], B](value: G[A])(f: (A) ⇒ F[B])(implicit G: Traverse[G]): F[G[B]]

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    Definition Classes
    Applicative

  85. def tuple10[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9)]

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    Definition Classes
    ApplyArityFunctions

  86. def tuple11[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10)]

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    Definition Classes
    ApplyArityFunctions

  87. def tuple12[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)]

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    Definition Classes
    ApplyArityFunctions

  88. def tuple13[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12)]

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    Definition Classes
    ApplyArityFunctions

  89. def tuple14[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13)]

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    Definition Classes
    ApplyArityFunctions

  90. def tuple15[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14)]

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    Definition Classes
    ApplyArityFunctions

  91. def tuple16[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15)]

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    Definition Classes
    ApplyArityFunctions

  92. def tuple17[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16)]

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    Definition Classes
    ApplyArityFunctions

  93. def tuple18[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17)]

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    Definition Classes
    ApplyArityFunctions

  94. def tuple19[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18)]

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    Definition Classes
    ApplyArityFunctions

  95. def tuple2[A, B](f1: F[A], f2: F[B]): F[(A, B)]

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    Definition Classes
    ApplyArityFunctions

  96. def tuple20[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19)]

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    Definition Classes
    ApplyArityFunctions

  97. def tuple21[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19], f20: F[A20]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20)]

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    Definition Classes
    ApplyArityFunctions

  98. def tuple22[A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8], f9: F[A9], f10: F[A10], f11: F[A11], f12: F[A12], f13: F[A13], f14: F[A14], f15: F[A15], f16: F[A16], f17: F[A17], f18: F[A18], f19: F[A19], f20: F[A20], f21: F[A21]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21)]

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    Definition Classes
    ApplyArityFunctions

  99. def tuple3[A0, A1, A2, Z](f0: F[A0], f1: F[A1], f2: F[A2]): F[(A0, A1, A2)]

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    Definition Classes
    ApplyArityFunctions

  100. def tuple4[A0, A1, A2, A3, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3]): F[(A0, A1, A2, A3)]

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    Definition Classes
    ApplyArityFunctions

  101. def tuple5[A0, A1, A2, A3, A4, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4]): F[(A0, A1, A2, A3, A4)]

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    Definition Classes
    ApplyArityFunctions

  102. def tuple6[A0, A1, A2, A3, A4, A5, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5]): F[(A0, A1, A2, A3, A4, A5)]

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    Definition Classes
    ApplyArityFunctions

  103. def tuple7[A0, A1, A2, A3, A4, A5, A6, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6]): F[(A0, A1, A2, A3, A4, A5, A6)]

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    Definition Classes
    ApplyArityFunctions

  104. def tuple8[A0, A1, A2, A3, A4, A5, A6, A7, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7]): F[(A0, A1, A2, A3, A4, A5, A6, A7)]

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    Definition Classes
    ApplyArityFunctions

  105. def tuple9[A0, A1, A2, A3, A4, A5, A6, A7, A8, Z](f0: F[A0], f1: F[A1], f2: F[A2], f3: F[A3], f4: F[A4], f5: F[A5], f6: F[A6], f7: F[A7], f8: F[A8]): F[(A0, A1, A2, A3, A4, A5, A6, A7, A8)]

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    Definition Classes
    ApplyArityFunctions

  106. def void[A](fa: F[A]): F[Unit]

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    Empty the fa of the values, preserving the structure

    Empty the fa of the values, preserving the structure

    Definition Classes
    Functor

  107. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Monad[F]

Inherited from FlatMap[F]

Inherited from ApplicativeError[F, E]

Inherited from Applicative[F]

Inherited from Apply[F]

Inherited from ApplyArityFunctions[F]

Inherited from Cartesian[F]

Inherited from Functor[F]

Inherited from Invariant[F]

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped