cleanup the code of the PGF interpreter and polish the binary serialization to match the preliminary specification

This commit is contained in:
krasimir
2010-01-27 09:39:14 +00:00
parent b206aa3464
commit 890d455793
20 changed files with 368 additions and 345 deletions

View File

@@ -56,14 +56,14 @@ parseWithRecovery pgf lang typ open_typs toks = accept (initState pgf lang typ)
-- startup category.
initState :: PGF -> Language -> Type -> ParseState
initState pgf lang (DTyp _ start _) =
let items = case Map.lookup start (startCats cnc) of
Just (s,e,labels) -> do cat <- range (s,e)
(funid,args) <- foldForest (\funid args -> (:) (funid,args)) (\_ _ args -> args)
[] cat (pproductions cnc)
let FFun fn lins = functions cnc ! funid
(lbl,seqid) <- assocs lins
return (Active 0 0 funid seqid args (AK cat lbl))
Nothing -> mzero
let items = case Map.lookup start (cnccats cnc) of
Just (CncCat s e labels) -> do cat <- range (s,e)
(funid,args) <- foldForest (\funid args -> (:) (funid,args)) (\_ _ args -> args)
[] cat (pproductions cnc)
let CncFun fn lins = cncfuns cnc ! funid
(lbl,seqid) <- assocs lins
return (Active 0 0 funid seqid args (AK cat lbl))
Nothing -> mzero
cnc = lookConcr pgf lang
@@ -82,7 +82,7 @@ nextState (PState pgf cnc chart items) t =
let (mb_agenda,map_items) = TMap.decompose items
agenda = maybe [] Set.toList mb_agenda
acc = fromMaybe TMap.empty (Map.lookup t map_items)
(acc1,chart1) = process (Just t) add (sequences cnc) (functions cnc) agenda acc chart
(acc1,chart1) = process (Just t) add (sequences cnc) (cncfuns cnc) agenda acc chart
chart2 = chart1{ active =emptyAC
, actives=active chart1 : actives chart1
, passive=emptyPC
@@ -105,7 +105,7 @@ getCompletions (PState pgf cnc chart items) w =
let (mb_agenda,map_items) = TMap.decompose items
agenda = maybe [] Set.toList mb_agenda
acc = Map.filterWithKey (\tok _ -> isPrefixOf w tok) map_items
(acc',chart1) = process Nothing add (sequences cnc) (functions cnc) agenda acc chart
(acc',chart1) = process Nothing add (sequences cnc) (cncfuns cnc) agenda acc chart
chart2 = chart1{ active =emptyAC
, actives=active chart1 : actives chart1
, passive=emptyPC
@@ -121,7 +121,7 @@ recoveryStates :: [Type] -> ErrorState -> (ParseState, Map.Map String ParseState
recoveryStates open_types (EState pgf cnc chart) =
let open_fcats = concatMap type2fcats open_types
agenda = foldl (complete open_fcats) [] (actives chart)
(acc,chart1) = process Nothing add (sequences cnc) (functions cnc) agenda Map.empty chart
(acc,chart1) = process Nothing add (sequences cnc) (cncfuns cnc) agenda Map.empty chart
chart2 = chart1{ active =emptyAC
, actives=active chart1 : actives chart1
, passive=emptyPC
@@ -129,9 +129,9 @@ recoveryStates open_types (EState pgf cnc chart) =
}
in (PState pgf cnc chart (TMap.singleton [] (Set.fromList agenda)), fmap (PState pgf cnc chart2) acc)
where
type2fcats (DTyp _ cat _) = case Map.lookup cat (startCats cnc) of
Just (s,e,labels) -> range (s,e)
Nothing -> []
type2fcats (DTyp _ cat _) = case Map.lookup cat (cnccats cnc) of
Just (CncCat s e labels) -> range (s,e)
Nothing -> []
complete open_fcats items ac =
foldl (Set.fold (\(Active j' ppos funid seqid args keyc) ->
@@ -151,23 +151,23 @@ extractTrees (PState pgf cnc chart items) ty@(DTyp _ start _) =
where
(mb_agenda,acc) = TMap.decompose items
agenda = maybe [] Set.toList mb_agenda
(_,st) = process Nothing (\_ _ -> id) (sequences cnc) (functions cnc) agenda () chart
(_,st) = process Nothing (\_ _ -> id) (sequences cnc) (cncfuns cnc) agenda () chart
exps =
case Map.lookup start (startCats cnc) of
Just (s,e,lbls) -> do cat <- range (s,e)
lbl <- indices lbls
Just fid <- [lookupPC (PK cat lbl 0) (passive st)]
(fvs,tree) <- go Set.empty 0 (0,fid)
guard (Set.null fvs)
return tree
Nothing -> mzero
case Map.lookup start (cnccats cnc) of
Just (CncCat s e lbls) -> do cat <- range (s,e)
lbl <- indices lbls
Just fid <- [lookupPC (PK cat lbl 0) (passive st)]
(fvs,tree) <- go Set.empty 0 (0,fid)
guard (Set.null fvs)
return tree
Nothing -> mzero
go rec fcat' (d,fcat)
| fcat < totalCats cnc = return (Set.empty,EMeta (fcat'*10+d)) -- FIXME: here we assume that every rule has at most 10 arguments
| Set.member fcat rec = mzero
| otherwise = foldForest (\funid args trees ->
do let FFun fn lins = functions cnc ! funid
do let CncFun fn lins = cncfuns cnc ! funid
args <- mapM (go (Set.insert fcat rec) fcat) (zip [0..] args)
check_ho_fun fn args
`mplus`
@@ -193,36 +193,36 @@ process mbt fn !seqs !funs [] ac
process mbt fn !seqs !funs (item@(Active j ppos funid seqid args key0):items) acc chart
| inRange (bounds lin) ppos =
case unsafeAt lin ppos of
FSymCat d r -> let !fid = args !! d
key = AK fid r
SymCat d r -> let !fid = args !! d
key = AK fid r
items2 = case lookupPC (mkPK key k) (passive chart) of
Nothing -> items
Just id -> (Active j (ppos+1) funid seqid (updateAt d id args) key0) : items
items3 = foldForest (\funid args items -> Active k 0 funid (rhs funid r) args key : items)
(\_ _ items -> items)
items2 fid (forest chart)
in case lookupAC key (active chart) of
Nothing -> process mbt fn seqs funs items3 acc chart{active=insertAC key (Set.singleton item) (active chart)}
Just set | Set.member item set -> process mbt fn seqs funs items acc chart
| otherwise -> process mbt fn seqs funs items2 acc chart{active=insertAC key (Set.insert item set) (active chart)}
FSymKS toks -> let !acc' = fn toks (Active j (ppos+1) funid seqid args key0) acc
in process mbt fn seqs funs items acc' chart
FSymKP strs vars
-> let !acc' = foldl (\acc toks -> fn toks (Active j (ppos+1) funid seqid args key0) acc) acc
(strs:[strs' | Alt strs' _ <- vars])
in process mbt fn seqs funs items acc' chart
FSymLit d r -> let !fid = args !! d
in case [ts | FConst _ ts <- maybe [] Set.toList (IntMap.lookup fid (forest chart))] of
(toks:_) -> let !acc' = fn toks (Active j (ppos+1) funid seqid args key0) acc
in process mbt fn seqs funs items acc' chart
[] -> case litCatMatch fid mbt of
Just (toks,lit) -> let fid' = nextId chart
!acc' = fn toks (Active j (ppos+1) funid seqid (updateAt d fid' args) key0) acc
in process mbt fn seqs funs items acc' chart{forest=IntMap.insert fid' (Set.singleton (FConst lit toks)) (forest chart)
,nextId=nextId chart+1
}
Nothing -> process mbt fn seqs funs items acc chart
items2 = case lookupPC (mkPK key k) (passive chart) of
Nothing -> items
Just id -> (Active j (ppos+1) funid seqid (updateAt d id args) key0) : items
items3 = foldForest (\funid args items -> Active k 0 funid (rhs funid r) args key : items)
(\_ _ items -> items)
items2 fid (forest chart)
in case lookupAC key (active chart) of
Nothing -> process mbt fn seqs funs items3 acc chart{active=insertAC key (Set.singleton item) (active chart)}
Just set | Set.member item set -> process mbt fn seqs funs items acc chart
| otherwise -> process mbt fn seqs funs items2 acc chart{active=insertAC key (Set.insert item set) (active chart)}
SymKS toks -> let !acc' = fn toks (Active j (ppos+1) funid seqid args key0) acc
in process mbt fn seqs funs items acc' chart
SymKP strs vars
-> let !acc' = foldl (\acc toks -> fn toks (Active j (ppos+1) funid seqid args key0) acc) acc
(strs:[strs' | Alt strs' _ <- vars])
in process mbt fn seqs funs items acc' chart
SymLit d r -> let !fid = args !! d
in case [ts | PConst _ ts <- maybe [] Set.toList (IntMap.lookup fid (forest chart))] of
(toks:_) -> let !acc' = fn toks (Active j (ppos+1) funid seqid args key0) acc
in process mbt fn seqs funs items acc' chart
[] -> case litCatMatch fid mbt of
Just (toks,lit) -> let fid' = nextId chart
!acc' = fn toks (Active j (ppos+1) funid seqid (updateAt d fid' args) key0) acc
in process mbt fn seqs funs items acc' chart{forest=IntMap.insert fid' (Set.singleton (PConst lit toks)) (forest chart)
,nextId=nextId chart+1
}
Nothing -> process mbt fn seqs funs items acc chart
| otherwise =
case lookupPC (mkPK key0 j) (passive chart) of
Nothing -> let fid = nextId chart
@@ -230,14 +230,14 @@ process mbt fn !seqs !funs (item@(Active j ppos funid seqid args key0):items) ac
items2 = case lookupAC key0 ((active chart:actives chart) !! (k-j)) of
Nothing -> items
Just set -> Set.fold (\(Active j' ppos funid seqid args keyc) ->
let FSymCat d _ = unsafeAt (unsafeAt seqs seqid) ppos
let SymCat d _ = unsafeAt (unsafeAt seqs seqid) ppos
in (:) (Active j' (ppos+1) funid seqid (updateAt d fid args) keyc)) items set
in process mbt fn seqs funs items2 acc chart{passive=insertPC (mkPK key0 j) fid (passive chart)
,forest =IntMap.insert fid (Set.singleton (FApply funid args)) (forest chart)
,forest =IntMap.insert fid (Set.singleton (PApply funid args)) (forest chart)
,nextId =nextId chart+1
}
Just id -> let items2 = [Active k 0 funid (rhs funid r) args (AK id r) | r <- labelsAC id (active chart)] ++ items
in process mbt fn seqs funs items2 acc chart{forest = IntMap.insertWith Set.union id (Set.singleton (FApply funid args)) (forest chart)}
in process mbt fn seqs funs items2 acc chart{forest = IntMap.insertWith Set.union id (Set.singleton (PApply funid args)) (forest chart)}
where
!lin = unsafeAt seqs seqid
!k = offset chart
@@ -246,7 +246,7 @@ process mbt fn !seqs !funs (item@(Active j ppos funid seqid args key0):items) ac
rhs funid lbl = unsafeAt lins lbl
where
FFun _ lins = unsafeAt funs funid
CncFun _ lins = unsafeAt funs funid
updateAt :: Int -> a -> [a] -> [a]
@@ -268,15 +268,15 @@ litCatMatch _ _ = Nothing
data Active
= Active {-# UNPACK #-} !Int
{-# UNPACK #-} !FPointPos
{-# UNPACK #-} !DotPos
{-# UNPACK #-} !FunId
{-# UNPACK #-} !SeqId
[FCat]
[FId]
{-# UNPACK #-} !ActiveKey
deriving (Eq,Show,Ord)
data ActiveKey
= AK {-# UNPACK #-} !FCat
{-# UNPACK #-} !FIndex
= AK {-# UNPACK #-} !FId
{-# UNPACK #-} !LIndex
deriving (Eq,Ord,Show)
type ActiveChart = IntMap.IntMap (IntMap.IntMap (Set.Set Active))
@@ -286,13 +286,13 @@ emptyAC = IntMap.empty
lookupAC :: ActiveKey -> ActiveChart -> Maybe (Set.Set Active)
lookupAC (AK fcat l) chart = IntMap.lookup fcat chart >>= IntMap.lookup l
lookupACByFCat :: FCat -> ActiveChart -> [Set.Set Active]
lookupACByFCat :: FId -> ActiveChart -> [Set.Set Active]
lookupACByFCat fcat chart =
case IntMap.lookup fcat chart of
Nothing -> []
Just map -> IntMap.elems map
labelsAC :: FCat -> ActiveChart -> [FIndex]
labelsAC :: FId -> ActiveChart -> [LIndex]
labelsAC fcat chart =
case IntMap.lookup fcat chart of
Nothing -> []
@@ -307,20 +307,20 @@ insertAC (AK fcat l) set chart = IntMap.insertWith IntMap.union fcat (IntMap.sin
----------------------------------------------------------------
data PassiveKey
= PK {-# UNPACK #-} !FCat
{-# UNPACK #-} !FIndex
= PK {-# UNPACK #-} !FId
{-# UNPACK #-} !LIndex
{-# UNPACK #-} !Int
deriving (Eq,Ord,Show)
type PassiveChart = Map.Map PassiveKey FCat
type PassiveChart = Map.Map PassiveKey FId
emptyPC :: PassiveChart
emptyPC = Map.empty
lookupPC :: PassiveKey -> PassiveChart -> Maybe FCat
lookupPC :: PassiveKey -> PassiveChart -> Maybe FId
lookupPC key chart = Map.lookup key chart
insertPC :: PassiveKey -> FCat -> PassiveChart -> PassiveChart
insertPC :: PassiveKey -> FId -> PassiveChart -> PassiveChart
insertPC key fcat chart = Map.insert key fcat chart
@@ -328,15 +328,15 @@ insertPC key fcat chart = Map.insert key fcat chart
-- Forest
----------------------------------------------------------------
foldForest :: (FunId -> [FCat] -> b -> b) -> (Expr -> [String] -> b -> b) -> b -> FCat -> IntMap.IntMap (Set.Set Production) -> b
foldForest :: (FunId -> [FId] -> b -> b) -> (Expr -> [String] -> b -> b) -> b -> FId -> IntMap.IntMap (Set.Set Production) -> b
foldForest f g b fcat forest =
case IntMap.lookup fcat forest of
Nothing -> b
Just set -> Set.fold foldProd b set
where
foldProd (FCoerce fcat) b = foldForest f g b fcat forest
foldProd (FApply funid args) b = f funid args b
foldProd (FConst const toks) b = g const toks b
foldProd (PCoerce fcat) b = foldForest f g b fcat forest
foldProd (PApply funid args) b = f funid args b
foldProd (PConst const toks) b = g const toks b
----------------------------------------------------------------
@@ -353,7 +353,7 @@ data Chart
, actives :: [ActiveChart]
, passive :: PassiveChart
, forest :: IntMap.IntMap (Set.Set Production)
, nextId :: {-# UNPACK #-} !FCat
, nextId :: {-# UNPACK #-} !FId
, offset :: {-# UNPACK #-} !Int
}
deriving Show