reactive-0.8.6: Simple foundation for functional reactive programming Source code Contents Index

FRP.Reactive.LegacyAdapters Stability experimental Maintainer conal@conal.net

Description

Tools for making Reactive adapters for imperative ("legacy") libraries.

Synopsis

type Sink a = a -> Action type Action = IO () makeClock :: IO (Clock TimeT) cGetTime :: Clock t -> IO t makeEvent :: Clock TimeT -> MkFed (Event a) a mkUpdater :: IO TimeT -> Behavior Action -> IO Action

Documentation

type Sink a = a -> Action Source

Value consumer

type Action = IO () Source

Convenient alias for dropping parentheses.

makeClock :: IO (Clock TimeT) Source

Make a clock, given a way to delay actions. For instance, the delay could be sleepThen in thread-safe situations, but could also involve a GUI toolkit wake-up event.

cGetTime :: Clock t -> IO t Source

makeEvent :: Clock TimeT -> MkFed (Event a) a Source

Make a new event and a sink that writes to it. Uses the given clock to serialize and time-stamp.

mkUpdater :: IO TimeT -> Behavior Action -> IO Action Source

Make an action to be executed regularly, given a time-source and a action-behavior. The generated action is optimized to do almost no work during known-constant phases of the given behavior.

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