forked from GitHub/gf-core
248 lines
8.9 KiB
Haskell
248 lines
8.9 KiB
Haskell
{-# LANGUAGE PatternGuards #-}
|
|
----------------------------------------------------------------------
|
|
-- |
|
|
-- Module : Lookup
|
|
-- Maintainer : AR
|
|
-- Stability : (stable)
|
|
-- Portability : (portable)
|
|
--
|
|
-- > CVS $Date: 2005/10/27 13:21:53 $
|
|
-- > CVS $Author: aarne $
|
|
-- > CVS $Revision: 1.15 $
|
|
--
|
|
-- Lookup in source (concrete and resource) when compiling.
|
|
--
|
|
-- lookup in resource and concrete in compiling; for abstract, use 'Look'
|
|
-----------------------------------------------------------------------------
|
|
|
|
module GF.Grammar.Lookup (
|
|
lookupIdent,
|
|
lookupOrigInfo,
|
|
allOrigInfos,
|
|
lookupResDef, lookupResDefLoc,
|
|
lookupResType,
|
|
lookupOverload,
|
|
lookupOverloadTypes,
|
|
lookupParamValues,
|
|
allParamValues,
|
|
lookupAbsDef,
|
|
lookupLincat,
|
|
lookupFunType,
|
|
lookupCatContext,
|
|
allOpers, allOpersTo
|
|
) where
|
|
|
|
import GF.Data.Operations
|
|
import GF.Infra.Ident
|
|
import GF.Grammar.Macros
|
|
import GF.Grammar.Grammar
|
|
import GF.Grammar.Printer
|
|
import GF.Grammar.Predef
|
|
import GF.Grammar.Lockfield
|
|
|
|
import Data.List (sortBy)
|
|
--import Data.Maybe (maybe)
|
|
--import Control.Monad
|
|
import GF.Text.Pretty
|
|
import qualified Data.Map as Map
|
|
|
|
-- whether lock fields are added in reuse
|
|
lock c = lockRecType c -- return
|
|
unlock c = unlockRecord c -- return
|
|
|
|
-- to look up a constant etc in a search tree --- why here? AR 29/5/2008
|
|
lookupIdent :: ErrorMonad m => Ident -> Map.Map Ident b -> m b
|
|
lookupIdent c t =
|
|
case Map.lookup c t of
|
|
Just v -> return v
|
|
Nothing -> raise ("unknown identifier" +++ showIdent c)
|
|
|
|
lookupIdentInfo :: ErrorMonad m => SourceModInfo -> Ident -> m Info
|
|
lookupIdentInfo mo i = lookupIdent i (jments mo)
|
|
|
|
lookupQIdentInfo :: ErrorMonad m => Grammar -> QIdent -> m Info
|
|
lookupQIdentInfo gr (m,c) = flip lookupIdentInfo c =<< lookupModule gr m
|
|
|
|
lookupResDef :: ErrorMonad m => Grammar -> QIdent -> m Term
|
|
lookupResDef gr x = fmap unLoc (lookupResDefLoc gr x)
|
|
|
|
lookupResDefLoc gr (m,c)
|
|
| isPredefCat c = fmap noLoc (lock c defLinType)
|
|
| otherwise = look m c
|
|
where
|
|
look m c = do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
ResOper _ (Just lt) -> return lt
|
|
ResOper _ Nothing -> return (noLoc (Q (m,c)))
|
|
CncCat (Just (L l ty)) _ _ _ _ -> fmap (L l) (lock c ty)
|
|
CncCat _ _ _ _ _ -> fmap noLoc (lock c defLinType)
|
|
|
|
CncFun (Just (_,cat,_,_)) (Just (L l tr)) _ _ -> fmap (L l) (unlock cat tr)
|
|
CncFun _ (Just ltr) _ _ -> return ltr
|
|
|
|
AnyInd _ n -> look n c
|
|
ResParam _ _ -> return (noLoc (QC (m,c)))
|
|
ResValue _ _ -> return (noLoc (QC (m,c)))
|
|
_ -> raise $ render (c <+> "is not defined in resource" <+> m)
|
|
|
|
lookupResType :: ErrorMonad m => Grammar -> QIdent -> m Type
|
|
lookupResType gr (m,c) = do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
ResOper (Just (L _ t)) _ -> return t
|
|
|
|
-- used in reused concrete
|
|
CncCat _ _ _ _ _ -> return typeType
|
|
CncFun (Just (_,cat,cont,val)) _ _ _ -> do
|
|
val' <- lock cat val
|
|
return $ mkProd cont val' []
|
|
AnyInd _ n -> lookupResType gr (n,c)
|
|
ResParam _ _ -> return typePType
|
|
ResValue (L _ t) _ -> return t
|
|
_ -> raise $ render (c <+> "has no type defined in resource" <+> m)
|
|
|
|
lookupOverloadTypes :: ErrorMonad m => Grammar -> QIdent -> m [(Term,Type)]
|
|
lookupOverloadTypes gr id@(m,c) = do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
ResOper (Just (L _ ty)) _ -> ret ty
|
|
|
|
-- used in reused concrete
|
|
CncCat _ _ _ _ _ -> ret typeType
|
|
CncFun (Just (_,cat,cont,val)) _ _ _ -> do
|
|
val' <- lock cat val
|
|
ret $ mkProd cont val' []
|
|
ResParam _ _ -> ret typePType
|
|
ResValue (L _ t) _ -> ret t
|
|
ResOverload os tysts -> do
|
|
tss <- mapM (\x -> lookupOverloadTypes gr (x,c)) os
|
|
return $ [(tr,ty) | (L _ ty,L _ tr) <- tysts] ++
|
|
concat tss
|
|
AnyInd _ n -> lookupOverloadTypes gr (n,c)
|
|
_ -> raise $ render (c <+> "has no types defined in resource" <+> m)
|
|
where
|
|
ret ty = return [(Q id,ty)]
|
|
|
|
lookupOverload :: ErrorMonad m => Grammar -> QIdent -> m [([Type],(Type,Term))]
|
|
lookupOverload gr (m,c) = do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
ResOverload os tysts -> do
|
|
tss <- mapM (\x -> lookupOverload gr (x,c)) os
|
|
return $ [let (args,val) = typeFormCnc ty in (map (\(b,x,t) -> t) args,(val,tr)) |
|
|
(L _ ty,L _ tr) <- tysts] ++
|
|
concat tss
|
|
|
|
AnyInd _ n -> lookupOverload gr (n,c)
|
|
_ -> raise $ render (c <+> "is not an overloaded operation")
|
|
|
|
-- | returns the original 'Info' and the module where it was found
|
|
lookupOrigInfo :: ErrorMonad m => Grammar -> QIdent -> m (ModuleName,Info)
|
|
lookupOrigInfo gr (m,c) = do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
AnyInd _ n -> lookupOrigInfo gr (n,c)
|
|
i -> return (m,i)
|
|
|
|
allOrigInfos :: Grammar -> ModuleName -> [(QIdent,Info)]
|
|
allOrigInfos gr m = fromErr [] $ do
|
|
mo <- lookupModule gr m
|
|
return [((m,c),i) | (c,_) <- Map.toList (jments mo), Ok (m,i) <- [lookupOrigInfo gr (m,c)]]
|
|
|
|
lookupParamValues :: ErrorMonad m => Grammar -> QIdent -> m [Term]
|
|
lookupParamValues gr c = do
|
|
(_,info) <- lookupOrigInfo gr c
|
|
case info of
|
|
ResParam _ (Just (pvs,_)) -> return pvs
|
|
_ -> raise $ render (ppQIdent Qualified c <+> "has no parameter values defined")
|
|
|
|
allParamValues :: ErrorMonad m => Grammar -> Type -> m [Term]
|
|
allParamValues cnc ptyp =
|
|
case ptyp of
|
|
_ | Just n <- isTypeInts ptyp -> return [EInt i | i <- [0..n]]
|
|
QC c -> lookupParamValues cnc c
|
|
Q c -> lookupResDef cnc c >>= allParamValues cnc
|
|
RecType r -> do
|
|
let (ls,tys) = unzip $ sortByFst r
|
|
tss <- mapM (allParamValues cnc) tys
|
|
return [R (zipAssign ls ts) | ts <- sequence tss]
|
|
Table pt vt -> do
|
|
pvs <- allParamValues cnc pt
|
|
vvs <- allParamValues cnc vt
|
|
return [V pt ts | ts <- sequence (replicate (length pvs) vvs)]
|
|
_ -> raise (render ("cannot find parameter values for" <+> ptyp))
|
|
where
|
|
-- to normalize records and record types
|
|
sortByFst = sortBy (\ x y -> compare (fst x) (fst y))
|
|
|
|
lookupAbsDef :: ErrorMonad m => Grammar -> ModuleName -> Ident -> m (Maybe Int,Maybe [Equation])
|
|
lookupAbsDef gr m c = errIn (render ("looking up absdef of" <+> c)) $ do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
AbsFun _ a d _ -> return (a,fmap (map unLoc) d)
|
|
AnyInd _ n -> lookupAbsDef gr n c
|
|
_ -> return (Nothing,Nothing)
|
|
|
|
lookupLincat :: ErrorMonad m => Grammar -> ModuleName -> Ident -> m Type
|
|
lookupLincat gr m c | isPredefCat c = return defLinType --- ad hoc; not needed?
|
|
lookupLincat gr m c = do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
CncCat (Just (L _ t)) _ _ _ _ -> return t
|
|
AnyInd _ n -> lookupLincat gr n c
|
|
_ -> raise (render (c <+> "has no linearization type in" <+> m))
|
|
|
|
-- | this is needed at compile time
|
|
lookupFunType :: ErrorMonad m => Grammar -> ModuleName -> Ident -> m Type
|
|
lookupFunType gr m c = do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
AbsFun (Just (L _ t)) _ _ _ -> return t
|
|
AnyInd _ n -> lookupFunType gr n c
|
|
_ -> raise (render ("cannot find type of" <+> c))
|
|
|
|
-- | this is needed at compile time
|
|
lookupCatContext :: ErrorMonad m => Grammar -> ModuleName -> Ident -> m Context
|
|
lookupCatContext gr m c = do
|
|
info <- lookupQIdentInfo gr (m,c)
|
|
case info of
|
|
AbsCat (Just (L _ co)) -> return co
|
|
AnyInd _ n -> lookupCatContext gr n c
|
|
_ -> raise (render ("unknown category" <+> c))
|
|
|
|
|
|
-- this gives all opers and param constructors, also overloaded opers and funs, and the types, and locations
|
|
-- notice that it only gives the modules that are reachable and the opers that are included
|
|
|
|
allOpers :: Grammar -> [(QIdent,Type,Location)]
|
|
allOpers gr =
|
|
[((m,op),typ,loc) |
|
|
(m,mi) <- maybe [] (allExtends gr) (greatestResource gr),
|
|
(op,info) <- Map.toList (jments mi),
|
|
L loc typ <- typesIn info
|
|
]
|
|
where
|
|
typesIn info = case info of
|
|
AbsFun (Just ltyp) _ _ _ -> [ltyp]
|
|
ResOper (Just ltyp) _ -> [ltyp]
|
|
ResValue ltyp _ -> [ltyp]
|
|
ResOverload _ tytrs -> [ltyp | (ltyp,_) <- tytrs]
|
|
CncFun (Just (_,i,ctx,typ)) _ _ _ ->
|
|
[L NoLoc (mkProdSimple ctx (lock' i typ))]
|
|
_ -> []
|
|
|
|
lock' i typ = case lock i typ of
|
|
Ok t -> t
|
|
_ -> typ
|
|
|
|
--- not for dependent types
|
|
allOpersTo :: Grammar -> Type -> [(QIdent,Type,Location)]
|
|
allOpersTo gr ty = [op | op@(_,typ,_) <- allOpers gr, isProdTo ty typ] where
|
|
isProdTo t typ = eqProd typ t || case typ of
|
|
Prod _ _ a b -> isProdTo t b
|
|
_ -> False
|
|
eqProd f g = case (f,g) of
|
|
(Prod _ _ a1 b1, Prod _ _ a2 b2) -> eqProd a1 a2 && eqProd b1 b2
|
|
_ -> f == g
|