Packages

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
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Arrow
  2. ArrowParent
  3. Category
  4. Strong
  5. Profunctor
  6. Split
  7. Compose
  8. AnyRef
  9. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Type Members

  1. trait CategoryLaw extends ComposeLaw
    Definition Classes
    Category
  2. trait ComposeLaw extends AnyRef
    Definition Classes
    Compose
  3. trait ComposePlus extends Plus[[α]=>:[α, α]]
    Attributes
    protected[this]
    Definition Classes
    Compose
  4. trait ComposeSemigroup [A] extends Semigroup[=>:[A, A]]
    Attributes
    protected[this]
    Definition Classes
    Compose
  5. trait SndCovariant [C] extends Functor[[β$0$]=>:[C, β$0$]]
    Attributes
    protected[this]
    Definition Classes
    Profunctor

Abstract Value Members

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

    Lift an ordinary function.

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

    Associative =>: binary operator.

    Associative =>: binary operator.

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

    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
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def <<<[A, B, C](fbc: =>:[B, C], fab: =>:[A, B]): =>:[A, C]

    Alias for compose.

  4. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  5. def >>>[A, B, C](fab: =>:[A, B], fbc: =>:[B, C]): =>:[A, C]

    Flipped <<<.

  6. val arrowSyntax: ArrowSyntax[=>:]
  7. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  8. def categoryLaw: CategoryLaw
    Definition Classes
    Category
  9. val categorySyntax: CategorySyntax[=>:]
    Definition Classes
    Category
  10. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  11. def combine[A, B, C](fab: =>:[A, B], fac: =>:[A, C]): =>:[A, (B, C)]

    Run fab and fac on the same A.

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

  12. def composeLaw: ComposeLaw
    Definition Classes
    Compose
  13. val composeSyntax: ComposeSyntax[=>:]
    Definition Classes
    Compose
  14. def contravariantInstance[C]: Contravariant[[α$2$]=>:[α$2$, C]]
    Definition Classes
    Profunctor
  15. def covariantInstance[C]: Applicative[[β$0$]=>:[C, β$0$]]
    Definition Classes
    ArrowProfunctor
  16. def dimap[A, B, C, D](fab: =>:[A, B])(f: (C) ⇒ A)(g: (B) ⇒ D): =>:[C, D]

    Functor map on A and B.

    Functor map on A and B.

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

    monoid, but universally quantified.

    monoid, but universally quantified.

    Definition Classes
    Category
  18. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  20. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  21. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
  22. def hashCode(): Int
    Definition Classes
    AnyRef → Any
  23. def invariantFunctor: InvariantFunctor[[α]=>:[α, α]]
    Definition Classes
    Profunctor
  24. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  25. def mapfst[A, B, C](fab: =>:[A, B])(f: (C) ⇒ A): =>:[C, B]

    Contramap on A.

    Contramap on A.

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

    Functor map on B.

    Functor map on B.

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

    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
    Definition Classes
    AnyRef
  29. final def notify(): Unit
    Definition Classes
    AnyRef
  30. final def notifyAll(): Unit
    Definition Classes
    AnyRef
  31. def plus: Plus[[α]=>:[α, α]]

    semigroup, but universally quantified.

    semigroup, but universally quantified.

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

    Run two fabs alongside each other.

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

    Pass C through untouched.

    Pass C through untouched.

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

    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)]

    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)]

    Alias for split.

  38. val splitSyntax: SplitSyntax[=>:]
    Definition Classes
    Split
  39. val strongSyntax: StrongSyntax[=>:]
    Definition Classes
    Strong
  40. def swap[X, Y]: =>:[(X, Y), (Y, X)]

    Swaps a pair.

    Swaps a pair.

    Definition Classes
    ArrowParent
  41. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  42. def toString(): String
    Definition Classes
    AnyRef → Any
  43. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  44. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  45. final def wait(arg0: Long): Unit
    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