object BifunctorUsage extends App
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
Ordering
- Alphabetic
- By Inheritance
Inherited
- BifunctorUsage
- App
- DelayedInit
- AnyRef
- Any
- Hide All
- Show All
Visibility
- Public
- All
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
- @native() @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
- Annotations
- @deprecatedOverriding( ... , "2.11.0" )
-
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
- Annotations
- @native()
-
def
hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- val leftF: Functor[[α$0$]\/[α$0$, 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
- Annotations
- @native()
-
final
def
notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- val rightF: Functor[[β$1$]\/[String, β$1$]]
- 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
- @native() @throws( ... )