A lawless type class that provides conversions to Coeval.
Sample:
// Conversion from cats.Eval
import cats.Eval
val source0 = Eval.always(1 + 1)
val task0 = CoevalLike[Eval].apply(source0)
// Conversion from SyncIO
import cats.effect.SyncIO
val source1 = SyncIO(1 + 1)
val task1 = CoevalLike[SyncIO].apply(source1)
This is an alternative to usage of cats.effect.Effect
where the internals are specialized to Coeval anyway, like for
example the implementation of monix.reactive.Observable.
- Companion:
- object
Value members
Abstract methods
Converts from F[A] to Coeval[A], preserving referential
transparency if F[_] is a pure data type and preserving
interruptibility if the source is cancelable.
Converts from F[A] to Coeval[A], preserving referential
transparency if F[_] is a pure data type and preserving
interruptibility if the source is cancelable.
Deprecated methods
DEPRECATED — switch to CoevalLike.apply.
DEPRECATED — switch to CoevalLike.apply.
- Deprecated
[Since version 3.0.0-RC3]
Inherited methods
Composes two instances of FunctionK into a new FunctionK that transforms
one single functor to a cats.data.Tuple2K of two functors.
Composes two instances of FunctionK into a new FunctionK that transforms
one single functor to a cats.data.Tuple2K of two functors.
scala> import cats.arrow.FunctionK
scala> val list2option = λ[FunctionK[List, Option]](_.headOption)
scala> val list2vector = λ[FunctionK[List, Vector]](_.toVector)
scala> val optionAndVector = list2option and list2vector
scala> optionAndVector(List(1,2,3))
res0: cats.data.Tuple2K[Option,Vector,Int] = Tuple2K(Some(1),Vector(1, 2, 3))
- Inherited from:
- FunctionK
Composes two instances of FunctionK into a new FunctionK with this transformation applied first.
Composes two instances of FunctionK into a new FunctionK with this transformation applied first.
- Inherited from:
- FunctionK
Composes two instances of FunctionK into a new FunctionK with this transformation applied last.
Composes two instances of FunctionK into a new FunctionK with this transformation applied last.
- Inherited from:
- FunctionK
Narrows the input type of this FunctionK from F to F0
Narrows the input type of this FunctionK from F to F0
- Inherited from:
- FunctionK
Composes two instances of FunctionK into a new FunctionK that transforms a cats.data.EitherK to a single functor.
Composes two instances of FunctionK into a new FunctionK that transforms a cats.data.EitherK to a single functor.
This transformation will be used to transform left F values while
h will be used to transform right H values.
- Inherited from:
- FunctionK