module Language.Copilot.Core (
Period, Var, Name, Port(..), Ext(..),
Exs, ExtRet(..), Args, ArgConstVar(..),
Spec(..), Streams, Stream,
Trigger(..), Triggers, LangElems(..),
Streamable(..), StreamableMaps(..), emptySM,
isEmptySM, getMaybeElem, getElem,
foldStreamableMaps,
mapStreamableMaps, mapStreamableMapsM,
filterStreamableMaps, normalizeVar, getVars, Vars,
getAtomType, getSpecs, getTriggers, vPre, funcShow,
notConstVarErr
) where
import qualified Language.Atom as A
import Data.Int
import Data.Word
import Data.List hiding (union)
import qualified Data.Map as M
import Text.Printf
import Control.Monad.Writer (Writer, Monoid(..), execWriter)
type Var = String
type Name = String
type Period = Int
data Port = Port Int
data Spec a where
Var :: Streamable a => Var -> Spec a
Const :: Streamable a => a -> Spec a
PVar :: Streamable a => A.Type -> Ext -> Spec a
PArr :: (Streamable a, Streamable b, A.IntegralE b)
=> A.Type -> (Ext, Spec b) -> Spec a
F :: (Streamable a, Streamable b) =>
(b -> a) -> (A.E b -> A.E a) -> Spec b -> Spec a
F2 :: (Streamable a, Streamable b, Streamable c) =>
(b -> c -> a) -> (A.E b -> A.E c -> A.E a) -> Spec b -> Spec c -> Spec a
F3 :: (Streamable a, Streamable b, Streamable c, Streamable d) =>
(b -> c -> d -> a) -> (A.E b -> A.E c -> A.E d -> A.E a)
-> Spec b -> Spec c -> Spec d -> Spec a
Append :: Streamable a => [a] -> Spec a -> Spec a
Drop :: Streamable a => Int -> Spec a -> Spec a
data ArgConstVar = V Var
| C String
deriving Eq
instance Show ArgConstVar where
show args = case args of
V v -> normalizeVar v
C c -> "_const_" ++ c ++ "_"
type Args = [ArgConstVar]
data Trigger =
Trigger { trigVar :: Spec Bool
, trigName :: String
, trigArgs :: Args}
type Triggers = M.Map String Trigger
instance Show Trigger where
show (Trigger s fnName args) =
"trigger_" ++ notConstVarErr s show ++ "_" ++ fnName ++ "_" ++ normalizeVar (show args)
data Ext = ExtV Var
| Fun String Args
instance Show Ext where
show (ExtV v) = v
show (Fun f args) = normalizeVar f ++ show args
type Exs = (A.Type, Ext, ExtRet)
data ExtRet = ExtRetV
| ExtRetA ArgConstVar
deriving Eq
funcShow :: Name -> String -> Args -> String
funcShow cName fname args =
fname ++ "(" ++ (unwords $ intersperse ","
(map (\arg -> case arg of
v@(V _) -> vPre cName ++ show v
C c -> c
) args)) ++ ")"
instance Eq Ext where
(==) (ExtV v0) (ExtV v1) = v0 == v1
(==) (Fun f0 l0) (Fun f1 l1) = f0 == f1 && l0 == l1
(==) _ _ = False
instance (Streamable a, A.NumE a) => Num (Spec a) where
(+) = F2 (+) (+)
(*) = F2 (*) (*)
() = F2 () ()
negate = F negate negate
abs = F abs abs
signum = F signum signum
fromInteger i = Const (fromInteger i)
instance (Streamable a, A.NumE a, Fractional a) => Fractional (Spec a) where
(/) = F2 (/) (/)
recip = F recip recip
fromRational r = Const (fromRational r)
instance Eq a => Eq (Spec a) where
(==) (PVar t v) (PVar t' v') = t == t' && v == v'
(==) (PArr t (v, idx)) (PArr t' (v', idx')) =
t == t' && v == v' && show idx == show idx'
(==) (Var v) (Var v') = v == v'
(==) (Const x) (Const x') = x == x'
(==) s@(F _ _ _) s'@(F _ _ _) = show s == show s'
(==) s@(F2 _ _ _ _) s'@(F2 _ _ _ _) = show s == show s'
(==) s@(F3 _ _ _ _ _) s'@(F3 _ _ _ _ _) = show s == show s'
(==) (Append ls s) (Append ls' s') = ls == ls' && s == s'
(==) (Drop i s) (Drop i' s') = i == i' && s == s'
(==) _ _ = False
vPre :: Name -> String
vPre cName = "copilotState" ++ cName ++ "." ++ cName ++ "."
data LangElems = LangElems
{ strms :: StreamableMaps Spec
, trigs :: Triggers}
type Streams = Writer LangElems ()
getSpecs :: Streams -> StreamableMaps Spec
getSpecs streams =
let (LangElems ss _) = execWriter streams
in ss
getTriggers :: Streams -> Triggers
getTriggers streams =
let (LangElems _ triggers) = execWriter streams
in triggers
type Stream a = Streamable a => (Var, Spec a)
notConstVarErr :: Streamable a => Spec a -> (ArgConstVar -> b) -> b
notConstVarErr s f = f $
case s of
Var v -> V v
Const c -> C (showAsC c)
_ -> error $ "You provided specification \n" ++ " " ++ show s
++ "\n where you needed to give a Copilot variable or constant."
class (A.Expr a, A.Assign a, Show a) => Streamable a where
getSubMap :: StreamableMaps b -> M.Map Var (b a)
updateSubMap :: (M.Map Var (b a) -> M.Map Var (b a))
-> StreamableMaps b -> StreamableMaps b
unit :: a
atomConstructor :: Var -> a -> A.Atom (A.V a)
externalAtomConstructor :: Var -> A.V a
typeId :: a -> String
typeIdPrec :: a -> String
typeIdPrec x = typeId x
atomType :: a -> A.Type
showAsC :: a -> String
instance Streamable Bool where
getSubMap = bMap
updateSubMap f sm = sm {bMap = f $ bMap sm}
unit = False
atomConstructor = A.bool
externalAtomConstructor = A.bool'
typeId _ = "%i"
atomType _ = A.Bool
showAsC x = printf "%u" (if x then 1::Int else 0)
instance Streamable Int8 where
getSubMap = i8Map
updateSubMap f sm = sm {i8Map = f $ i8Map sm}
unit = 0
atomConstructor = A.int8
externalAtomConstructor = A.int8'
typeId _ = "%d"
atomType _ = A.Int8
showAsC x = printf "%d" (toInteger x)
instance Streamable Int16 where
getSubMap = i16Map
updateSubMap f sm = sm {i16Map = f $ i16Map sm}
unit = 0
atomConstructor = A.int16
externalAtomConstructor = A.int16'
typeId _ = "%d"
atomType _ = A.Int16
showAsC x = printf "%d" (toInteger x)
instance Streamable Int32 where
getSubMap = i32Map
updateSubMap f sm = sm {i32Map = f $ i32Map sm}
unit = 0
atomConstructor = A.int32
externalAtomConstructor = A.int32'
typeId _ = "%d"
atomType _ = A.Int32
showAsC x = printf "%d" (toInteger x)
instance Streamable Int64 where
getSubMap = i64Map
updateSubMap f sm = sm {i64Map = f $ i64Map sm}
unit = 0
atomConstructor = A.int64
externalAtomConstructor = A.int64'
typeId _ = "%lld"
atomType _ = A.Int64
showAsC x = printf "%d" (toInteger x)
instance Streamable Word8 where
getSubMap = w8Map
updateSubMap f sm = sm {w8Map = f $ w8Map sm}
unit = 0
atomConstructor = A.word8
externalAtomConstructor = A.word8'
typeId _ = "%u"
atomType _ = A.Word8
showAsC x = printf "%u" (toInteger x)
instance Streamable Word16 where
getSubMap = w16Map
updateSubMap f sm = sm {w16Map = f $ w16Map sm}
unit = 0
atomConstructor = A.word16
externalAtomConstructor = A.word16'
typeId _ = "%u"
atomType _ = A.Word16
showAsC x = printf "%u" (toInteger x)
instance Streamable Word32 where
getSubMap = w32Map
updateSubMap f sm = sm {w32Map = f $ w32Map sm}
unit = 0
atomConstructor = A.word32
externalAtomConstructor = A.word32'
typeId _ = "%u"
atomType _ = A.Word32
showAsC x = printf "%u" (toInteger x)
instance Streamable Word64 where
getSubMap = w64Map
updateSubMap f sm = sm {w64Map = f $ w64Map sm}
unit = 0
atomConstructor = A.word64
externalAtomConstructor = A.word64'
typeId _ = "%llu"
atomType _ = A.Word64
showAsC x = printf "%u" (toInteger x)
instance Streamable Float where
getSubMap = fMap
updateSubMap f sm = sm {fMap = f $ fMap sm}
unit = 0
atomConstructor = A.float
externalAtomConstructor = A.float'
typeId _ = "%f"
typeIdPrec _ = "%.5f"
atomType _ = A.Float
showAsC x = printf "%.5f" x
instance Streamable Double where
getSubMap = dMap
updateSubMap f sm = sm {dMap = f $ dMap sm}
unit = 0
atomConstructor = A.double
externalAtomConstructor = A.double'
typeId _ = "%lf"
typeIdPrec _ = "%.10lf"
atomType _ = A.Double
showAsC x = printf "%.10f" x
getMaybeElem :: Streamable a => Var -> StreamableMaps b -> Maybe (b a)
getMaybeElem v sm = M.lookup v $ getSubMap sm
getElem :: Streamable a => Var -> StreamableMaps b -> b a
getElem v sm =
case getMaybeElem v sm of
Nothing -> error $ "Error in application of getElem from Core.hs for variable "
++ v ++ "."
Just x -> x
getAtomType :: Streamable a => Spec a -> A.Type
getAtomType s =
let unitElem = unit
_ = (Const unitElem) `asTypeOf` s
in atomType unitElem
foldStreamableMaps :: forall b c.
(Streamable a => Var -> c a -> b -> b) ->
StreamableMaps c -> b -> b
foldStreamableMaps f (SM bm i8m i16m i32m i64m w8m w16m w32m w64m fm dm) acc =
let acc0 = M.foldrWithKey f acc bm
acc1 = M.foldrWithKey f acc0 i8m
acc2 = M.foldrWithKey f acc1 i16m
acc3 = M.foldrWithKey f acc2 i32m
acc4 = M.foldrWithKey f acc3 i64m
acc5 = M.foldrWithKey f acc4 w8m
acc6 = M.foldrWithKey f acc5 w16m
acc7 = M.foldrWithKey f acc6 w32m
acc8 = M.foldrWithKey f acc7 w64m
acc9 = M.foldrWithKey f acc8 fm
acc10 = M.foldrWithKey f acc9 dm
in acc10
mapStreamableMaps :: forall s s'.
(forall a. Streamable a => Var -> s a -> s' a) ->
StreamableMaps s -> StreamableMaps s'
mapStreamableMaps f (SM bm i8m i16m i32m i64m w8m w16m w32m w64m fm dm) =
SM {
bMap = M.mapWithKey f bm,
i8Map = M.mapWithKey f i8m,
i16Map = M.mapWithKey f i16m,
i32Map = M.mapWithKey f i32m,
i64Map = M.mapWithKey f i64m,
w8Map = M.mapWithKey f w8m,
w16Map = M.mapWithKey f w16m,
w32Map = M.mapWithKey f w32m,
w64Map = M.mapWithKey f w64m,
fMap = M.mapWithKey f fm,
dMap = M.mapWithKey f dm
}
mapStreamableMapsM :: forall s s' m. Monad m =>
(Streamable a => Var -> s a -> m (s' a)) ->
StreamableMaps s -> m (StreamableMaps s')
mapStreamableMapsM f sm =
foldStreamableMaps (
\ v s sm'M -> do
sm' <- sm'M
s' <- f v s
return $ updateSubMap (\ m -> M.insert v s' m) sm'
) sm (return emptySM)
filterStreamableMaps ::
forall c b. StreamableMaps c -> [(A.Type, Var, b)] -> (StreamableMaps c, Bool)
filterStreamableMaps sm l =
let (sm2, l2) = foldStreamableMaps filterElem sm (emptySM, []) in
(sm2, (l' \\ nub l2) == [])
where
filterElem :: forall a. Streamable a => Var -> c a ->
(StreamableMaps c, [(A.Type, Var)]) ->
(StreamableMaps c, [(A.Type, Var)])
filterElem v s (sm', l2) =
let x = (atomType (unit::a), v) in
if x `elem` l'
then (updateSubMap (\m -> M.insert v s m) sm', x:l2)
else (sm', l2)
l' = nub $ map (\(x,y,_) -> (x,y)) l
data StreamableMaps a =
SM {
bMap :: M.Map Var (a Bool),
i8Map :: M.Map Var (a Int8),
i16Map :: M.Map Var (a Int16),
i32Map :: M.Map Var (a Int32),
i64Map :: M.Map Var (a Int64),
w8Map :: M.Map Var (a Word8),
w16Map :: M.Map Var (a Word16),
w32Map :: M.Map Var (a Word32),
w64Map :: M.Map Var (a Word64),
fMap :: M.Map Var (a Float),
dMap :: M.Map Var (a Double)
}
instance Monoid (StreamableMaps Spec) where
mempty = emptySM
mappend x y = overlap x y
instance Monoid LangElems where
mempty = LangElems emptySM M.empty
mappend (LangElems x z) (LangElems x' z') =
LangElems (overlap x x') (M.union z z')
overlap :: StreamableMaps s -> StreamableMaps s -> StreamableMaps s
overlap x@(SM bm i8m i16m i32m i64m w8m w16m w32m w64m fm dm)
y@(SM bm' i8m' i16m' i32m' i64m' w8m' w16m' w32m' w64m' fm' dm') =
let multDefs = (getVars x `intersect` getVars y)
in if null multDefs then union
else error $ "Copilot error: The variables "
++ show multDefs ++ " have multiple definitions."
where union = SM (M.union bm bm') (M.union i8m i8m') (M.union i16m i16m')
(M.union i32m i32m') (M.union i64m i64m') (M.union w8m w8m')
(M.union w16m w16m') (M.union w32m w32m') (M.union w64m w64m')
(M.union fm fm') (M.union dm dm')
getVars :: StreamableMaps s -> [Var]
getVars streams = foldStreamableMaps (\k _ ks -> k:ks) streams []
emptySM :: StreamableMaps a
emptySM = SM
{
bMap = M.empty,
i8Map = M.empty,
i16Map = M.empty,
i32Map = M.empty,
i64Map = M.empty,
w8Map = M.empty,
w16Map = M.empty,
w32Map = M.empty,
w64Map = M.empty,
fMap = M.empty,
dMap = M.empty
}
isEmptySM :: StreamableMaps a -> Bool
isEmptySM (SM bm i8m i16m i32m i64m w8m w16m w32m w64m fm dm) =
M.null bm &&
M.null i8m &&
M.null i16m &&
M.null i32m &&
M.null i64m &&
M.null w8m &&
M.null w16m &&
M.null w32m &&
M.null w64m &&
M.null fm &&
M.null dm
normalizeVar :: Var -> Var
normalizeVar v =
map (\c -> if (c `elem` ".[]()") then '_' else c)
(filter (\c -> c /= ',' && c /= ' ') v)
type Vars = StreamableMaps []
instance Show a => Show (Spec a) where
show s = showIndented s 0
showIndented :: Spec a -> Int -> String
showIndented s n =
let tabs = concat $ replicate n " " in
tabs ++ showRaw s n
showRaw :: Spec a -> Int -> String
showRaw (PVar t v) _ = "PVar " ++ show t ++ " " ++ show v
showRaw (PArr t (v, idx)) _ =
"PArr " ++ show t ++ " (" ++ show v ++ " ! (" ++ show idx ++ "))"
showRaw (Var v) _ = "Var " ++ v
showRaw (Const e) _ = show e
showRaw (F _ _ s0) n =
"F op? (\n" ++
showIndented s0 (n + 1) ++ "\n" ++
(concat $ replicate n " ") ++ ")"
showRaw (F2 _ _ s0 s1) n =
"F2 op? (\n" ++
showIndented s0 (n + 1) ++ "\n" ++
showIndented s1 (n + 1) ++ "\n" ++
(concat $ replicate n " ") ++ ")"
showRaw (F3 _ _ s0 s1 s2) n =
"F3 op? (\n" ++
showIndented s0 (n + 1) ++ "\n" ++
showIndented s1 (n + 1) ++ "\n" ++
showIndented s2 (n + 1) ++ "\n" ++
(concat $ replicate n " ") ++ ")"
showRaw (Append ls s0) n =
"Append " ++ show ls ++ " (\n" ++
showIndented s0 (n + 1) ++ "\n" ++
(concat $ replicate n " ") ++ ")"
showRaw (Drop i s0) n =
"Drop " ++ show i ++ " (\n" ++
showIndented s0 (n + 1) ++ "\n" ++
(concat $ replicate n " ") ++ ")"