Packages

trait Strong[F[_, _]] extends Profunctor[F] with Serializable

Must obey the laws defined in cats.laws.StrongLaws.

Source
Strong.scala
Linear Supertypes
Profunctor[F], Serializable, Serializable, AnyRef, Any
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  1. Strong
  2. Profunctor
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Visibility
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Abstract Value Members

  1. abstract def dimap[A, B, C, D](fab: F[A, B])(f: (C) ⇒ A)(g: (B) ⇒ D): F[C, D]

    Contramap on the first type parameter and map on the second type parameter

    Contramap on the first type parameter and map on the second type parameter

    Example:

    scala> import cats.implicits._
    scala> import cats.arrow.Profunctor
    scala> val fab: Double => Double = x => x + 0.3
    scala> val f: Int => Double = x => x.toDouble / 2
    scala> val g: Double => Double = x => x * 3
    scala> val h = Profunctor[Function1].dimap(fab)(f)(g)
    scala> h(3)
    res0: Double = 5.4
    Definition Classes
    Profunctor
  2. abstract def first[A, B, C](fa: F[A, B]): F[(A, C), (B, C)]

    Create a new F that takes two inputs, but only modifies the first input

    Create a new F that takes two inputs, but only modifies the first input

    Example:

    scala> import cats.implicits._
    scala> import cats.arrow.Strong
    scala> val f: Int => Int = _ * 2
    scala> val fab = Strong[Function1].first[Int,Int,Int](f)
    scala> fab((2,3))
    res0: (Int, Int) = (4,3)
  3. abstract def second[A, B, C](fa: F[A, B]): F[(C, A), (C, B)]

    Create a new F that takes two inputs, but only modifies the second input

    Create a new F that takes two inputs, but only modifies the second input

    Example:

    scala> import cats.implicits._
    scala> import cats.arrow.Strong
    scala> val f: Int => Int = _ * 2
    scala> val fab = Strong[Function1].second[Int,Int,Int](f)
    scala> fab((2,3))
    res0: (Int, Int) = (2,6)

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. def lmap[A, B, C](fab: F[A, B])(f: (C) ⇒ A): F[C, B]

    contramap on the first type parameter

    contramap on the first type parameter

    Definition Classes
    Profunctor
  13. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  16. def rmap[A, B, C](fab: F[A, B])(f: (B) ⇒ C): F[A, C]

    map on the second type parameter

    map on the second type parameter

    Definition Classes
    Profunctor
  17. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  18. def toString(): String
    Definition Classes
    AnyRef → Any
  19. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  20. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  21. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Inherited from Profunctor[F]

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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