monix-eval/monix.eval/TaskLike

TaskLike

@implicitNotFound("Cannot find implicit value for TaskLike[${F}].\nBuilding this implicit value might depend on having an implicit\ns.c.ExecutionContext in scope, a Scheduler or some equivalent type.")
trait TaskLike[F[_]] extends FunctionK[F, Task]

A lawless type class that provides conversions to Task.

Sample:

 // Conversion from cats.Eval
 import cats.Eval

 val source0 = Eval.always(1 + 1)
 val task0 = TaskLike[Eval].apply(source0)

 // Conversion from Future
 import scala.concurrent.Future

 val source1 = Future.successful(1 + 1)
 val task1 = TaskLike[Future].apply(source1)

 // Conversion from IO
 import cats.effect.IO

 val source2 = IO(1 + 1)
 val task2 = TaskLike[IO].apply(source2)

This is an alternative to usage of cats.effect.Effect where the internals are specialized to Task anyway, like for example the implementation of monix.reactive.Observable.

Companion:
object
trait FunctionK[F, Task]
trait Serializable
class Object
trait Matchable
class Any

Value members

Abstract methods

def apply[A](fa: F[A]): Task[A]

Converts from F[A] to Task[A], preserving referential transparency if F[_] is a pure data type and preserving interruptibility if the source is cancelable.

Converts from F[A] to Task[A], preserving referential transparency if F[_] is a pure data type and preserving interruptibility if the source is cancelable.

Deprecated methods

@deprecated("Switch to TaskLike.apply", since = "3.0.0-RC3")
def toTask[A](task: F[A]): Task[A]
Implicitly added by Deprecated

DEPRECATED — switch to TaskLike.apply.

DEPRECATED — switch to TaskLike.apply.

Deprecated
[Since version 3.0.0-RC3]

Inherited methods

def and[H[_]](h: FunctionK[F, H]): FunctionK[F, [_] =>> Tuple2K[Task, H, _$9]]

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
def andThen[H[_]](f: FunctionK[Task, H]): FunctionK[F, H]

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
def compose[E[_]](f: FunctionK[E, F]): FunctionK[E, Task]

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
def narrow[F0 <: (F)]: FunctionK[F0, Task]

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
def or[H[_]](h: FunctionK[H, Task]): FunctionK[[_] =>> EitherK[F, H, _$6], Task]

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
def widen[G0[x]]: FunctionK[F, G0]

Widens the output type of this FunctionK from G to G0

Widens the output type of this FunctionK from G to G0

Inherited from:
FunctionK

Concrete fields

val inst: TaskLike[F]
Implicitly added by Deprecated