---------------------------------------------------------------------- -- | -- Module : GF.Grammar.Binary -- Maintainer : Krasimir Angelov -- Stability : (stable) -- Portability : (portable) -- ----------------------------------------------------------------------------- module GF.Grammar.Binary where import Prelude hiding (catch) import Control.Exception(catch,ErrorCall(..),throwIO) import Data.Char import Data.Binary import Control.Monad import qualified Data.Map as Map import qualified Data.ByteString.Char8 as BS import GF.Data.Operations import GF.Infra.Ident import GF.Infra.Option import GF.Grammar.Grammar import PGF.Binary -- Please change this every time when the GFO format is changed gfoVersion = "GF02" instance Binary Ident where put id = put (ident2bs id) get = do bs <- get if bs == BS.pack "_" then return identW else return (identC bs) instance Binary SourceGrammar where put = put . modules get = fmap mGrammar get instance Binary SourceModInfo where put mi = do put (mtype mi,mstatus mi,mflags mi,mextend mi,mwith mi,mopens mi,mexdeps mi,msrc mi,mseqs mi,jments mi) get = do (mtype,mstatus,mflags,mextend,mwith,mopens,med,msrc,mseqs,jments) <- get return (ModInfo mtype mstatus mflags mextend mwith mopens med msrc mseqs jments) instance Binary ModuleType where put MTAbstract = putWord8 0 put MTResource = putWord8 2 put (MTConcrete i) = putWord8 3 >> put i put MTInterface = putWord8 4 put (MTInstance i) = putWord8 5 >> put i get = do tag <- getWord8 case tag of 0 -> return MTAbstract 2 -> return MTResource 3 -> get >>= return . MTConcrete 4 -> return MTInterface 5 -> get >>= return . MTInstance _ -> decodingError instance Binary MInclude where put MIAll = putWord8 0 put (MIOnly xs) = putWord8 1 >> put xs put (MIExcept xs) = putWord8 2 >> put xs get = do tag <- getWord8 case tag of 0 -> return MIAll 1 -> fmap MIOnly get 2 -> fmap MIExcept get _ -> decodingError instance Binary OpenSpec where put (OSimple i) = putWord8 0 >> put i put (OQualif i j) = putWord8 1 >> put (i,j) get = do tag <- getWord8 case tag of 0 -> get >>= return . OSimple 1 -> get >>= \(i,j) -> return (OQualif i j) _ -> decodingError instance Binary ModuleStatus where put MSComplete = putWord8 0 put MSIncomplete = putWord8 1 get = do tag <- getWord8 case tag of 0 -> return MSComplete 1 -> return MSIncomplete _ -> decodingError instance Binary Options where put = put . optionsGFO get = do opts <- get case parseModuleOptions ["--" ++ flag ++ "=" ++ value | (flag,value) <- opts] of Ok x -> return x Bad msg -> fail msg instance Binary Production where put (Production res funid args) = put (res,funid,args) get = do res <- get funid <- get args <- get return (Production res funid args) instance Binary PMCFG where put (PMCFG prods funs) = put (prods,funs) get = do prods <- get funs <- get return (PMCFG prods funs) instance Binary Info where put (AbsCat x) = putWord8 0 >> put x put (AbsFun w x y z) = putWord8 1 >> put (w,x,y,z) put (ResParam x y) = putWord8 2 >> put (x,y) put (ResValue x) = putWord8 3 >> put x put (ResOper x y) = putWord8 4 >> put (x,y) put (ResOverload x y)= putWord8 5 >> put (x,y) put (CncCat w x y z) = putWord8 6 >> put (w,x,y,z) put (CncFun w x y z) = putWord8 7 >> put (w,x,y,z) put (AnyInd x y) = putWord8 8 >> put (x,y) get = do tag <- getWord8 case tag of 0 -> get >>= \x -> return (AbsCat x) 1 -> get >>= \(w,x,y,z) -> return (AbsFun w x y z) 2 -> get >>= \(x,y) -> return (ResParam x y) 3 -> get >>= \x -> return (ResValue x) 4 -> get >>= \(x,y) -> return (ResOper x y) 5 -> get >>= \(x,y) -> return (ResOverload x y) 6 -> get >>= \(w,x,y,z) -> return (CncCat w x y z) 7 -> get >>= \(w,x,y,z) -> return (CncFun w x y z) 8 -> get >>= \(x,y) -> return (AnyInd x y) _ -> decodingError instance Binary Location where put NoLoc = putWord8 0 put (Local x y) = putWord8 1 >> put (x,y) put (External x y) = putWord8 2 >> put (x,y) get = do tag <- getWord8 case tag of 0 -> return NoLoc 1 -> get >>= \(x,y) -> return (Local x y) 2 -> get >>= \(x,y) -> return (External x y) instance Binary a => Binary (L a) where put (L x y) = put (x,y) get = get >>= \(x,y) -> return (L x y) instance Binary Term where put (Vr x) = putWord8 0 >> put x put (Cn x) = putWord8 1 >> put x put (Con x) = putWord8 2 >> put x put (Sort x) = putWord8 3 >> put x put (EInt x) = putWord8 4 >> put x put (EFloat x) = putWord8 5 >> put x put (K x) = putWord8 6 >> put x put (Empty) = putWord8 7 put (App x y) = putWord8 8 >> put (x,y) put (Abs x y z) = putWord8 9 >> put (x,y,z) put (Meta x) = putWord8 10 >> put x put (ImplArg x) = putWord8 11 >> put x put (Prod w x y z)= putWord8 12 >> put (w,x,y,z) put (Typed x y) = putWord8 13 >> put (x,y) put (Example x y) = putWord8 14 >> put (x,y) put (RecType x) = putWord8 15 >> put x put (R x) = putWord8 16 >> put x put (P x y) = putWord8 17 >> put (x,y) put (ExtR x y) = putWord8 18 >> put (x,y) put (Table x y) = putWord8 19 >> put (x,y) put (T x y) = putWord8 20 >> put (x,y) put (V x y) = putWord8 21 >> put (x,y) put (S x y) = putWord8 22 >> put (x,y) put (Let x y) = putWord8 23 >> put (x,y) put (Q x) = putWord8 24 >> put x put (QC x) = putWord8 25 >> put x put (C x y) = putWord8 26 >> put (x,y) put (Glue x y) = putWord8 27 >> put (x,y) put (EPatt x) = putWord8 28 >> put x put (EPattType x) = putWord8 29 >> put x put (ELincat x y) = putWord8 30 >> put (x,y) put (ELin x y) = putWord8 31 >> put (x,y) put (FV x) = putWord8 32 >> put x put (Alts x y) = putWord8 33 >> put (x,y) put (Strs x) = putWord8 34 >> put x put (Error x) = putWord8 35 >> put x get = do tag <- getWord8 case tag of 0 -> get >>= \x -> return (Vr x) 1 -> get >>= \x -> return (Cn x) 2 -> get >>= \x -> return (Con x) 3 -> get >>= \x -> return (Sort x) 4 -> get >>= \x -> return (EInt x) 5 -> get >>= \x -> return (EFloat x) 6 -> get >>= \x -> return (K x) 7 -> return (Empty) 8 -> get >>= \(x,y) -> return (App x y) 9 -> get >>= \(x,y,z) -> return (Abs x y z) 10 -> get >>= \x -> return (Meta x) 11 -> get >>= \x -> return (ImplArg x) 12 -> get >>= \(w,x,y,z)->return (Prod w x y z) 13 -> get >>= \(x,y) -> return (Typed x y) 14 -> get >>= \(x,y) -> return (Example x y) 15 -> get >>= \x -> return (RecType x) 16 -> get >>= \x -> return (R x) 17 -> get >>= \(x,y) -> return (P x y) 18 -> get >>= \(x,y) -> return (ExtR x y) 19 -> get >>= \(x,y) -> return (Table x y) 20 -> get >>= \(x,y) -> return (T x y) 21 -> get >>= \(x,y) -> return (V x y) 22 -> get >>= \(x,y) -> return (S x y) 23 -> get >>= \(x,y) -> return (Let x y) 24 -> get >>= \x -> return (Q x) 25 -> get >>= \x -> return (QC x) 26 -> get >>= \(x,y) -> return (C x y) 27 -> get >>= \(x,y) -> return (Glue x y) 28 -> get >>= \x -> return (EPatt x) 29 -> get >>= \x -> return (EPattType x) 30 -> get >>= \(x,y) -> return (ELincat x y) 31 -> get >>= \(x,y) -> return (ELin x y) 32 -> get >>= \x -> return (FV x) 33 -> get >>= \(x,y) -> return (Alts x y) 34 -> get >>= \x -> return (Strs x) 35 -> get >>= \x -> return (Error x) _ -> decodingError instance Binary Patt where put (PC x y) = putWord8 0 >> put (x,y) put (PP x y) = putWord8 1 >> put (x,y) put (PV x) = putWord8 2 >> put x put (PW) = putWord8 3 put (PR x) = putWord8 4 >> put x put (PString x) = putWord8 5 >> put x put (PInt x) = putWord8 6 >> put x put (PFloat x) = putWord8 7 >> put x put (PT x y) = putWord8 8 >> put (x,y) put (PAs x y) = putWord8 10 >> put (x,y) put (PNeg x) = putWord8 11 >> put x put (PAlt x y) = putWord8 12 >> put (x,y) put (PSeq x y) = putWord8 13 >> put (x,y) put (PRep x) = putWord8 14 >> put x put (PChar) = putWord8 15 put (PChars x) = putWord8 16 >> put x put (PMacro x) = putWord8 17 >> put x put (PM x) = putWord8 18 >> put x put (PTilde x) = putWord8 19 >> put x get = do tag <- getWord8 case tag of 0 -> get >>= \(x,y) -> return (PC x y) 1 -> get >>= \(x,y) -> return (PP x y) 2 -> get >>= \x -> return (PV x) 3 -> return (PW) 4 -> get >>= \x -> return (PR x) 5 -> get >>= \x -> return (PString x) 6 -> get >>= \x -> return (PInt x) 7 -> get >>= \x -> return (PFloat x) 8 -> get >>= \(x,y) -> return (PT x y) 10 -> get >>= \(x,y) -> return (PAs x y) 11 -> get >>= \x -> return (PNeg x) 12 -> get >>= \(x,y) -> return (PAlt x y) 13 -> get >>= \(x,y) -> return (PSeq x y) 14 -> get >>= \x -> return (PRep x) 15 -> return (PChar) 16 -> get >>= \x -> return (PChars x) 17 -> get >>= \x -> return (PMacro x) 18 -> get >>= \x -> return (PM x) 19 -> get >>= \x -> return (PTilde x) _ -> decodingError instance Binary TInfo where put TRaw = putWord8 0 put (TTyped t) = putWord8 1 >> put t put (TComp t) = putWord8 2 >> put t put (TWild t) = putWord8 3 >> put t get = do tag <- getWord8 case tag of 0 -> return TRaw 1 -> fmap TTyped get 2 -> fmap TComp get 3 -> fmap TWild get _ -> decodingError instance Binary Label where put (LIdent bs) = putWord8 0 >> put bs put (LVar i) = putWord8 1 >> put i get = do tag <- getWord8 case tag of 0 -> fmap LIdent get 1 -> fmap LVar get _ -> decodingError putGFOVersion = mapM_ (putWord8 . fromIntegral . ord) gfoVersion getGFOVersion = replicateM (length gfoVersion) (fmap (chr . fromIntegral) getWord8) decodeModule :: FilePath -> IO SourceModule decodeModule fpath = decodeFile' fpath (getGFOVersion >> get) decodeModuleHeader fpath = decodeFile' fpath getVersionedMod where getVersionedMod = do ver <- getGFOVersion if ver == gfoVersion then do (m,mtype,mstatus,mflags,mextend,mwith,mopens,med,msrc) <- get return (Just (m,ModInfo mtype mstatus mflags mextend mwith mopens med msrc Nothing Map.empty)) else return Nothing encodeModule :: FilePath -> SourceModule -> IO () encodeModule fpath mo = encodeFile_ fpath (putGFOVersion >> put mo) -- | like decodeFile_ but adds file name to error message if there was an error decodeFile' fpath get = addFPath fpath (decodeFile_ fpath get) -- | Adds file name to error message if there was an error, -- | but laziness can cause errors to slip through addFPath fpath m = m `catch` handle where handle (ErrorCall msg) = throwIO (ErrorCall (fpath++": "++msg))