BifunctorUsage

A Bifunctor is very similar to a Functor, which you are hopefully already familiar with. Whereas a Functor operates on a * → * and has a single operation map which takes a function from A => B to map a F[A] to a F[B], a Bifunctor operates on a *,* → * and has a single operation bimap which takes two functions: A ⇒ C and a B ⇒ D to map a F[A,B] to a F[C,D]:

def bimap[A, B, C, D](fab: F[A, B])(f: A => C, g: B => D): F[C, D]

some examples of common types for which we have Bifunctor instances are Either, Validation, \/, Tuple2

Source: BifunctorUsage.scala

Linear Supertypes

App, DelayedInit, AnyRef, Any

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def args: Array[String]

Attributes
protected
Definition Classes
App
Annotations
@deprecatedOverriding( "args should not be overridden" , "2.11.0" )
final def asInstanceOf[T0]: T0

Definition Classes
Any
val bff: Bifunctor[[α, β]List[\/[α, β]]]
val bfres: List[\/[String, Int]]
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

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

Definition Classes
AnyRef → Any
val executionStart: Long

Definition Classes
App
def finalize(): Unit

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

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
val leftF: Functor[[α]\/[α, String]]
def main(args: Array[String]): Unit

Definition Classes
App
Annotations
@deprecatedOverriding( "main should not be overridden" , "2.11.0" )
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
val rightF: Functor[[β]\/[String, β]]
val strlen: (String) ⇒ Int
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
val two: Validation[String, Int]
final def wait(): Unit

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

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

Definition Classes
AnyRef
Annotations
@throws( ... )

Deprecated Value Members

def delayedInit(body: ⇒ Unit): Unit

Definition Classes
App → DelayedInit
Annotations
@deprecated
Deprecated
(Since version 2.11.0) The delayedInit mechanism will disappear.

Related Doc: package example

object BifunctorUsage extends App

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def args: Array[String]

final def asInstanceOf[T0]: T0

val bff: Bifunctor[[α, β]List[\/[α, β]]]

val bfres: List[\/[String, Int]]

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

val executionStart: Long

def finalize(): Unit

val fourTwo: (Int, Int)

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

val leftF: Functor[[α]\/[α, String]]

def main(args: Array[String]): Unit

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

val rightF: Functor[[β]\/[String, β]]

val strlen: (String) ⇒ Int

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

def toString(): String

val two: Validation[String, Int]

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Deprecated Value Members

def delayedInit(body: ⇒ Unit): Unit

Inherited from App

Inherited from DelayedInit

Inherited from AnyRef

Inherited from Any

Ungrouped