FRP.Reactive.Internal.Future

Representation of future values

Time & futures

type Time = Max

Time used in futures. The parameter t can be any Ord and Bounded type. Pure values have time minBound, while never-occurring futures have time 'maxBound.' type Time t = Max (AddBounds t)

newtype FutureG t a

A future value of type a with time type t. Simply a time/value pair. Particularly useful with time types that have non-flat structure.

Constructors

Future

Fields

unFuture :: (Time t, a)

Instances

(Bounded t, Ord t) => Monad (FutureG t)

Functor (FutureG t)

(Bounded t, Ord t) => Applicative (FutureG t)

Comonad (FutureG t)

Copointed (FutureG t)

(Eq t, Eq a, Bounded t) => Eq (FutureG t a)

(Show t, Show a, Eq t, Bounded t) => Show (FutureG t a)

(Arbitrary t, Arbitrary a) => Arbitrary (FutureG t a)

(CoArbitrary t, CoArbitrary a) => CoArbitrary (FutureG t a)

(Ord t, Bounded t) => Monoid (FutureG t a)

(Bounded t, Eq t, EqProp t, EqProp a) => EqProp (FutureG t a)

isNeverF :: (Bounded t, Eq t) => FutureG t t1 -> Bool

inFuture :: ((Time t, a) -> (Time t', b)) -> FutureG t a -> FutureG t' b

Apply a unary function within the FutureG representation.

inFuture2 :: ((Time t, a) -> (Time t', b) -> (Time t', c)) -> FutureG t a -> FutureG t' b -> FutureG t' c

Apply a binary function within the FutureG representation.

runF :: Ord t => Sink t -> FutureG t (IO a) -> IO a

Run a future in the current thread. Use the given time sink to sync time, i.e., to wait for an output time before performing the action.