final case class RepresentableStore[F[_], S, A](fa: F[A], index: S)(implicit R: Aux[F, S]) extends Product with Serializable
A generalization of StoreT
, where the underlying functor F
has a Representable
instance.
Store
is the dual of State
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- RepresentableStore.scala
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- def coflatMap[B](f: (RepresentableStore[F, S, A]) => B): RepresentableStore[F, S, B]
coflatMap
is the dual offlatMap
onFlatMap
.coflatMap
is the dual offlatMap
onFlatMap
. It applies a value in a context to a function that takes a value in a context and returns a normal value. - lazy val coflatten: RepresentableStore[F, S, RepresentableStore[F, S, A]]
coflatten
is the dual offlatten
onFlatMap
.coflatten
is the dual offlatten
onFlatMap
. Whereas flatten removes a layer ofF
, coflatten adds a layer ofF
- final def eq(arg0: AnyRef): Boolean
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- def experiment[G[_]](fn: (S) => G[S])(implicit G: Functor[G]): G[A]
Given a functorial computation on the index
S
peek at the value in that functor.Given a functorial computation on the index
S
peek at the value in that functor.import cats._, implicits._, data.Store val initial = List("a", "b", "c") val store = Store(idx => initial.get(idx).getOrElse(""), 0) val adjacent = store.experiment[List] { idx => List(idx - 1, idx, idx + 1) } require(adjacent == List("", "a", "b"))
- lazy val extract: A
Extract the value at the current index.
- val fa: F[A]
- def finalize(): Unit
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- val index: S
- final def isInstanceOf[T0]: Boolean
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- def map[B](f: (A) => B): RepresentableStore[F, S, B]
Functor
map
forRepresentableStore
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- def peek(s: S): A
Peek at what the focus would be for a given focus s.
- def peeks(f: (S) => S): A
Peek at what the focus would be if the current focus where transformed with the given function.
- def productElementNames: Iterator[String]
- Definition Classes
- Product
- def seek(s: S): RepresentableStore[F, S, A]
Set the current focus.
- def seeks(f: (S) => S): RepresentableStore[F, S, A]
Modify the current focus with the given function.
- final def synchronized[T0](arg0: => T0): T0
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