Maintainer	Ertugrul Soeylemez <es@ertes.de>
Safe Haskell	None

Control.Wire.Unsafe.Event

Contents

Events
Helper functions

Description

Synopsis

Events

data Event a Source

Denotes a stream of values, each together with time of occurrence. Since Event is commonly used for functional reactive programming it does not define most of the usual instances to protect continuous time and discrete event occurrence semantics.

Constructors

Event a
NoEvent

Instances

Functor Event
Typeable1 Event
Semigroup a => Monoid (Event a)
NFData a => NFData (Event a)
Semigroup a => Semigroup (Event a)

Helper functions

event :: b -> (a -> b) -> Event a -> bSource

Fold the given event.

merge :: (a -> a -> a) -> Event a -> Event a -> Event aSource

Merge two events using the given function when both occur at the same time.

occurred :: Event a -> Bool Source

Did the given event occur?

onEventM :: Monad m => (a -> m b) -> Wire s e m (Event a) (Event b)Source

Each time the given event occurs, perform the given action with the value the event carries. The resulting event carries the result of the action.

Depends: now.