abstract class Yoneda[F[_], A] extends Serializable
The cofree functor for F
. The Yoneda lemma says that
Yoneda[F,A]
is isomorphic to F[A]
for any functor F
.
The function from Yoneda[F, A]
to F[A]
exists even when
we have forgotten that F
is a functor.
Can be seen as a partially applied map
for the functor F
.
- Self Type
- Yoneda[F, A]
- Source
- Yoneda.scala
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- Yoneda
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- new Yoneda()
Abstract Value Members
- abstract def apply[B](f: (A) => B): F[B]
Concrete Value Members
- final def !=(arg0: Any): Boolean
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- final def isInstanceOf[T0]: Boolean
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- def map[B](f: (A) => B): Yoneda[F, B]
Simple function composition.
Simple function composition. Allows map fusion without traversing an
F
. - def mapK[G[_]](f: ~>[F, G]): Yoneda[G, A]
Modify the context
F
using transformationf
. - final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- final def notifyAll(): Unit
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- def run: F[A]
Converts to
F[A]
even without aFunctor
instance forF
. - final def synchronized[T0](arg0: => T0): T0
- Definition Classes
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- def toCoyoneda: Aux[F, A, A]
Converts to
Coyoneda[F,A]
even without aFunctor
instance forF
. - def toString(): String
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- final def wait(): Unit
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