module ADP.Fusion.Term.Epsilon.Subword where
import Data.Proxy
import Data.Strict.Tuple
import Data.Vector.Fusion.Stream.Monadic as S
import Prelude hiding (map)
import Data.PrimitiveArray hiding (map)
import ADP.Fusion.Base
import ADP.Fusion.Term.Epsilon.Type
instance
( TmkCtx1 m ls Epsilon (Subword i)
) => MkStream m (ls :!: Epsilon) (Subword i) where
mkStream (ls :!: Epsilon) sv us is
= map (\(ss,ee,ii) -> ElmEpsilon ii ss)
. addTermStream1 Epsilon sv us is
$ mkStream ls (termStaticVar Epsilon sv is) us (termStreamIndex Epsilon sv is)
instance
( TstCtx m ts s x0 i0 is (Subword I)
) => TermStream m (TermSymbol ts Epsilon) s (is:.Subword I) where
termStream (ts:|Epsilon) (cs:.IStatic ()) (us:.u) (is:.Subword (i:.j))
= map (\(TState s ii ee) ->
TState s (ii:.:RiSwI j) (ee:.()) )
. termStream ts cs us is
. staticCheck (i==j)
instance
( TstCtx m ts s xi0 i0 is (Subword O)
) => TermStream m (TermSymbol ts Epsilon) s (is:.Subword O) where
termStream (ts:|Epsilon) (cs:.OStatic d) (us:.Subword (ui:.uj)) (is:.Subword (i:.j))
= staticCheck (ui == i && uj == j)
. map (\(TState s ii ee) ->
let io = getIndex (getIdx s) (Proxy :: PRI is (Subword O))
in TState s (ii:.:io) (ee:.()) )
. termStream ts cs us is
instance TermStaticVar Epsilon (Subword I) where
termStaticVar _ sv _ = sv
termStreamIndex _ _ ij = ij
instance TermStaticVar Epsilon (Subword O) where
termStaticVar _ sv _ = sv
termStreamIndex _ _ ij = ij