| Maintainer | Ertugrul Soeylemez <es@ertes.de> |
|---|
Control.Wire.Trans.Sample
Contents
Description
Wire transformers for sampling wires.
Sampling
hold :: Arrow >~ => Wire e >~ a b -> Wire e >~ a bSource
Keeps the latest produced value.
- Depends: Like argument wire. * Inhibits: Until first production.
holdWith :: Arrow >~ => b -> Wire e >~ a b -> Wire e >~ a bSource
Keeps the latest produced value. Produces the argument value until the argument wire starts producing.
- Depends: Like argument wire.
sample :: forall a b e t (>~). (ArrowChoice >~, ArrowClock >~, Num t, Ord t, Time >~ ~ t) => Wire e >~ a b -> Wire e >~ (a, t) bSource
Samples the given wire at discrete intervals. Only runs the input through the wire, then the next sampling interval has elapsed.
- Depends: Current instant (left), like argument wire at sampling intervals (right). * Inhibits: Starts inhibiting when argument wire inhibits. Keeps inhibiting until next sampling interval.
swallow :: ArrowChoice >~ => Wire e >~ a b -> Wire e >~ a bSource
Waits for the argument wire to produce and then keeps the first produced value forever.
- Depends: Like argument wire until first production. Then stops depending. * Inhibits: Until the argument wire starts producing.