Packages

trait Bifunctor[F[_, _]] extends Serializable

A type class of types which give rise to two independent, covariant functors.

Self Type
Bifunctor[F]
Annotations
@implicitNotFound( ... ) @typeclass( ... , ... )
Source
Bifunctor.scala
Linear Supertypes
Serializable, Serializable, AnyRef, Any
Known Subclasses
Bitraverse, BinestedBitraverse
Type Hierarchy
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Inherited
  1. Bifunctor
  2. Serializable
  3. Serializable
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. All

Abstract Value Members

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

    The quintessential method of the Bifunctor trait, it applies a function to each "side" of the bifunctor.

    The quintessential method of the Bifunctor trait, it applies a function to each "side" of the bifunctor.

    Example:

    scala> import cats.implicits._

scala> val x: (List[String], Int) = (List("foo", "bar"), 3)
scala> x.bimap(_.headOption, _.toLong + 1)
res0: (Option[String], Long) = (Some(foo),4)

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() @IntrinsicCandidate()
  6. def compose[G[_, _]](implicit G0: Bifunctor[G]): Bifunctor[[α, β]F[G[α, β], G[α, β]]]

    The composition of two Bifunctors is itself a Bifunctor

  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  9. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. def leftFunctor[X]: Functor[[α$1$]F[α$1$, X]]
  13. def leftMap[A, B, C](fab: F[A, B])(f: (A) ⇒ C): F[C, B]

    apply a function to the "left" functor

  14. def leftWiden[A, B, AA >: A](fab: F[A, B]): F[AA, B]

    Widens A into a supertype AA.

    Widens A into a supertype AA. Example:

    scala> import cats.implicits._
scala> sealed trait Foo
scala> case object Bar extends Foo
scala> val x1: Either[Bar.type, Int] = Either.left(Bar)
scala> val x2: Either[Foo, Int] = x1.leftWiden
  15. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  16. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  17. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  18. def rightFunctor[X]: Functor[[β$0$]F[X, β$0$]]
  19. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  20. def toString(): String
    Definition Classes
    AnyRef → Any
  21. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  22. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  23. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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