FRP.Moe.Core
- type DTime = Double
- newtype SF a b = MkSF {}
- sfId :: SF a a
- sfArr :: (a -> b) -> SF a b
- sfComp :: SF b c -> SF a b -> SF a c
- sfLoop :: SF (a, c) (b, c) -> SF a b
- sfFirst :: SF a b -> SF (a, c) (b, c)
- sfSecond :: SF a b -> SF (c, a) (c, b)
- sfLeft :: SF a b -> SF (Either a c) (Either b c)
- sfRight :: SF a b -> SF (Either c a) (Either c b)
- sfDelay :: a -> SF a a
- dTime :: SF () DTime
- class Arrow a => ArrowDelay a where
- delay :: b -> a b b
- data Event a
- switch :: SF b (c, Event d) -> (d -> SF b c) -> SF b c
- dswitch :: SF b (c, Event d) -> (d -> SF b c) -> SF b c
- kswitch :: SF a b -> SF (a, b) (Event c) -> (SF a b -> c -> SF a b) -> SF a b
- dkswitch :: SF a b -> SF (a, b) (Event c) -> (SF a b -> c -> SF a b) -> SF a b
- pswitch :: Functor col => (forall sf. a -> col sf -> col (b, sf)) -> col (SF b c) -> SF (a, col c) (Event d) -> (col (SF b c) -> d -> SF a (col c)) -> SF a (col c)
- dpswitch :: Functor col => (forall sf. a -> col sf -> col (b, sf)) -> col (SF b c) -> SF (a, col c) (Event d) -> (col (SF b c) -> d -> SF a (col c)) -> SF a (col c)
- nth :: Int -> DTime -> SF () a -> a
- gen :: SF a b -> [(DTime, a)] -> [b]
Documentation
SF a b can be seen as a function from [x1, x2, ...] to [y1, y2, ...], in which
x1, x2, ... have the type of a, and y1, y2, ... have the type of b. Notice that
each value is in fact a sample of a continuous temporal function of values in
some certain time. The time stamps are omitted in most of the comments.
sfComp :: SF b c -> SF a b -> SF a cSource
Input of sf1: [y1, y2, ...]
Output of sf1: [z1, z2, ...]
Input of sf2: [x1, x2, ...]
Output of sf2: [y1, y2, ...]
Input: [x1, x2, ...]
Output: [z1, z2, ...]
sfLoop :: SF (a, c) (b, c) -> SF a bSource
Returns a signal function that:
Input: [x1, x2, ...]
Output: [y1, y2, ...]
whenever the following property holds for sf:
Input of sf: [(x1, z1), (x2, z2), ...]
Output of sf: [(y1, z1), (y2, z2), ...]
sfFirst :: SF a b -> SF (a, c) (b, c)Source
Input of sf: [x1, x2, ...]
Output of sf: [y1, y2, ...]
Input: [(x1, z1), (x2, z2), ...]
Output: [(y1, z1), (y2, z2), ...]
sfSecond :: SF a b -> SF (c, a) (c, b)Source
Input of sf: [x1, x2, ...]
Output of sf: [y1, y2, ...]
Input: [(z1, x1), (z2, x2), ...]
Output: [(z1, y1), (z2, y2), ...]
sfLeft :: SF a b -> SF (Either a c) (Either b c)Source
Input of sf: [x1, x2, ...]
Output of sf: [y1, y2, ...]
Input: [Left x1, Right z1, Left x2, ...]
Output: [Left y1, Right z1, Left y2, ...]
sfRight :: SF a b -> SF (Either c a) (Either c b)Source
Input of sf: [x1, x2, ...]
Output of sf: [y1, y2, ...]
Input: [Right x1, Left z1, Right x2, ...]
Output: [Right y1, Left z2, Right y2, ...]
Input of sf: [x1, x2, ...]
Output of sf: [dt1, dt2, ...] (dt_i is the time interval between x_(i-1) and x_i)
class Arrow a => ArrowDelay a whereSource
Instances
| ArrowDelay SF | right, (|||) and (+++) are not necessary. They exist only for optimization |
switch :: SF b (c, Event d) -> (d -> SF b c) -> SF b cSource
Input of sf: [x1, x2, x3, ...]
Output of sf: [(y1, NoEvent), (y2, Event e1), (y3, NoEvent), ...]
Input of (gen e): [x2, x3, ...]
Output of (gen e): [y(e1)1, y(e1)2, ...]
Input: [x1, x2, x3, ...]
Output: [y1, y(e1)1, y(e1)2, ...]
dswitch :: SF b (c, Event d) -> (d -> SF b c) -> SF b cSource
Input of sf: [x1, x2, x3, ...]
Output of sf: [(y1, NoEvent), (y2, Event e1), (y3, NoEvent), ...]
Input of (gen e): [x2, x3, ...]
Output of (gen e): [y(e1)1, y(e1)2, ...]
Input: [x1, x2, x3, ...]
Output: [y1, y2, y(e1)2, ...]
kswitch :: SF a b -> SF (a, b) (Event c) -> (SF a b -> c -> SF a b) -> SF a bSource
Input of sf: [x1, x2, x3, ...]
Output of sf: [y1, y2, y3, ...]
Input of sfe: [(x1, y1), (x2, y2), (x3, y3), ...]
Output of sfe: [NoEvent, Event e1, NoEvent, ...]
Input of (gen sf3 e1): [x2, x3, ...]
Output of (gen sf3 e1): [y(sf3,e1)1, y(sf3,e1)2, ...]
Input: [x1, x2, x3, ...]
Output: [y1, y(sf3,e1)1, y(sf3,e2)2, ...]
where sf1 = [x1, x2, x3, ...] -- ^> [y1, y2, y3, ...]
sf2 = [x2, x3, ...] -- ^> [y2, y3, ...]
sf3 = [x3, ...] -- ^> [y3, ...]
...
dkswitch :: SF a b -> SF (a, b) (Event c) -> (SF a b -> c -> SF a b) -> SF a bSource
Input of sf: [x1, x2, x3, ...]
Output of sf: [y1, y2, y3, ...]
Input of sfe: [(x1, y1), (x2, y2), (x3, y3), ...]
Output of sfe: [NoEvent, Event e1, NoEvent, ...]
Input of (gen sf3 e1): [x2, x3, ...]
Output of (gen sf3 e1): [y(sf3,e1)1, y(sf3,e1)2, ...]
Input: [x1, x2, x3, ...]
Output: [y1, y2, y(sf3,e2)2, ...]
where sf1 = [x1, x2, x3, ...] -- ^> [y1, y2, y3, ...]
sf2 = [x2, x3, ...] -- ^> [y2, y3, ...]
sf3 = [x3, ...] -- ^> [y3, ...]
...
pswitch :: Functor col => (forall sf. a -> col sf -> col (b, sf)) -> col (SF b c) -> SF (a, col c) (Event d) -> (col (SF b c) -> d -> SF a (col c)) -> SF a (col c)Source
dpswitch :: Functor col => (forall sf. a -> col sf -> col (b, sf)) -> col (SF b c) -> SF (a, col c) (Event d) -> (col (SF b c) -> d -> SF a (col c)) -> SF a (col c)Source