Trait/Object

scalaz

Arrow

Related Docs: object Arrow | package scalaz

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trait Arrow[=>:[_, _]] extends Split[=>:] with Strong[=>:] with Category[=>:] with ArrowParent[=>:]

A scalaz.Category supporting all ordinary functions, as well as combining arrows product-wise. Every Arrow forms a scalaz.Contravariant in one type parameter, and a scalaz.Applicative in the other, just as with ordinary functions.

Self Type
Arrow[=>:]
Source
Arrow.scala
Linear Supertypes
ArrowParent[=>:], Category[=>:], Strong[=>:], Profunctor[=>:], Split[=>:], Compose[=>:], AnyRef, Any
Known Subclasses
Ordering
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  2. By Inheritance
Inherited
  1. Arrow
  2. ArrowParent
  3. Category
  4. Strong
  5. Profunctor
  6. Split
  7. Compose
  8. AnyRef
  9. Any
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Visibility
  1. Public
  2. All

Type Members

  1. trait CategoryLaw extends ComposeLaw

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    Definition Classes
    Category
  2. trait ComposeLaw extends AnyRef

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    Definition Classes
    Compose
  3. trait ComposePlus extends Plus[[α]=>:[α, α]]

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    Attributes
    protected[this]
    Definition Classes
    Compose
  4. trait ComposeSemigroup[A] extends Semigroup[=>:[A, A]]

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    Attributes
    protected[this]
    Definition Classes
    Compose
  5. trait SndCovariant[C] extends Functor[[β$0$]=>:[C, β$0$]]

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    Attributes
    protected[this]
    Definition Classes
    Profunctor

Abstract Value Members

  1. abstract def arr[A, B](f: (A) ⇒ B): =>:[A, B]

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    Lift an ordinary function.

  2. abstract def compose[A, B, C](f: =>:[B, C], g: =>:[A, B]): =>:[A, C]

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    Associative =>: binary operator.

    Associative =>: binary operator.

    Definition Classes
    Compose
  3. abstract def first[A, B, C](fa: =>:[A, B]): =>:[(A, C), (B, C)]

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    Definition Classes
    Strong
  4. abstract def id[A]: =>:[A, A]

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    The left and right identity over compose.

    The left and right identity over compose.

    Definition Classes
    Category

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 <<<[A, B, C](fbc: =>:[B, C], fab: =>:[A, B]): =>:[A, C]

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    Alias for compose.

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

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    Definition Classes
    AnyRef → Any
  5. def >>>[A, B, C](fab: =>:[A, B], fbc: =>:[B, C]): =>:[A, C]

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    Flipped <<<.

  6. val arrowSyntax: ArrowSyntax[=>:]

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  7. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  8. def categoryLaw: CategoryLaw

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    Definition Classes
    Category
  9. val categorySyntax: CategorySyntax[=>:]

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    Definition Classes
    Category
  10. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  11. def combine[A, B, C](fab: =>:[A, B], fac: =>:[A, C]): =>:[A, (B, C)]

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    Run fab and fac on the same A.

    Run fab and fac on the same A. Sometimes &&&.

  12. def composeLaw: ComposeLaw

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    Definition Classes
    Compose
  13. val composeSyntax: ComposeSyntax[=>:]

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    Definition Classes
    Compose
  14. def contravariantInstance[C]: Contravariant[[α$2$]=>:[α$2$, C]]

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    Definition Classes
    Profunctor
  15. def covariantInstance[C]: Applicative[[β$0$]=>:[C, β$0$]]

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    Definition Classes
    ArrowProfunctor
  16. def dimap[A, B, C, D](fab: =>:[A, B])(f: (C) ⇒ A)(g: (B) ⇒ D): =>:[C, D]

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    Functor map on A and B.

    Functor map on A and B.

    Definition Classes
    Profunctor
  17. def empty: PlusEmpty[[α]=>:[α, α]]

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    monoid, but universally quantified.

    monoid, but universally quantified.

    Definition Classes
    Category
  18. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  19. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  20. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  21. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  22. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
  23. def invariantFunctor: InvariantFunctor[[α]=>:[α, α]]

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    Definition Classes
    Profunctor
  24. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  25. def mapfst[A, B, C](fab: =>:[A, B])(f: (C) ⇒ A): =>:[C, B]

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    Contramap on A.

    Contramap on A.

    Definition Classes
    ArrowProfunctor
  26. def mapsnd[A, B, C](fab: =>:[A, B])(f: (B) ⇒ C): =>:[A, C]

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    Functor map on B.

    Functor map on B.

    Definition Classes
    ArrowProfunctor
  27. def monoid[A]: Monoid[=>:[A, A]]

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    The endomorphism monoid, where zero=id and append=compose.

    The endomorphism monoid, where zero=id and append=compose.

    Definition Classes
    Category
  28. final def ne(arg0: AnyRef): Boolean

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

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

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    Definition Classes
    AnyRef
  31. def plus: Plus[[α]=>:[α, α]]

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    semigroup, but universally quantified.

    semigroup, but universally quantified.

    Definition Classes
    Compose
  32. def product[A, B](fab: =>:[A, B]): =>:[(A, A), (B, B)]

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    Run two fabs alongside each other.

  33. val profunctorSyntax: ProfunctorSyntax[=>:]

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    Definition Classes
    Profunctor
  34. def second[A, B, C](f: =>:[A, B]): =>:[(C, A), (C, B)]

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    Pass C through untouched.

    Pass C through untouched.

    Definition Classes
    ArrowStrong
  35. def semigroup[A]: Semigroup[=>:[A, A]]

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    The endomorphism semigroup, where append=compose.

    The endomorphism semigroup, where append=compose.

    Definition Classes
    Compose
  36. def split[A, B, C, D](f: =>:[A, B], g: =>:[C, D]): =>:[(A, C), (B, D)]

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    Run fab and fcd alongside each other.

    Run fab and fcd alongside each other. Sometimes ***.

    Definition Classes
    ArrowSplit
  37. final def splitA[A, B, C, D](fab: =>:[A, B], fcd: =>:[C, D]): =>:[(A, C), (B, D)]

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    Alias for split.

  38. val splitSyntax: SplitSyntax[=>:]

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    Definition Classes
    Split
  39. val strongSyntax: StrongSyntax[=>:]

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    Definition Classes
    Strong
  40. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  41. def toString(): String

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    Definition Classes
    AnyRef → Any
  42. final def wait(): Unit

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

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from ArrowParent[=>:]

Inherited from Category[=>:]

Inherited from Strong[=>:]

Inherited from Profunctor[=>:]

Inherited from Split[=>:]

Inherited from Compose[=>:]

Inherited from AnyRef

Inherited from Any

Ungrouped