X-Git-Url: http://git.megacz.com/?p=coq-hetmet.git;a=blobdiff_plain;f=src%2FExtraction-prefix.hs;h=7fb016061fe376b4d65d23739294bd2fa09d9b78;hp=4abbf69a35de08723f9ef1a679d07dc8e7f8c1be;hb=4c5c94487aa2bf5489371f112607f0a4c4f01a94;hpb=8c26722a1ee110077968a8a166eb7130266b2035 diff --git a/src/Extraction-prefix.hs b/src/Extraction-prefix.hs index 4abbf69..7fb0160 100644 --- a/src/Extraction-prefix.hs +++ b/src/Extraction-prefix.hs @@ -1,11 +1,14 @@ -{-# OPTIONS_GHC -fno-warn-unused-binds #-} +{-# OPTIONS_GHC -fno-warn-unused-matches -fno-warn-unused-binds -fno-warn-unused-imports #-} module CoqPass ( coqPassCoreToString, coqPassCoreToCore ) where +import qualified Unique +import qualified UniqSupply import qualified MkCore import qualified TysWiredIn import qualified TysPrim import qualified Outputable import qualified PrelNames +import qualified OccName import qualified Name import qualified Literal import qualified Type @@ -19,46 +22,56 @@ import qualified FastString import qualified BasicTypes import qualified DataCon import qualified CoreSyn +import qualified CoreUtils import qualified Class import qualified Data.Char +import qualified Data.List +import qualified Data.Ord +import qualified Data.Typeable import Data.Bits ((.&.), shiftL, (.|.)) -import Prelude ( (++), (+), (==), Show, show, Char ) +import Prelude ( (++), (+), (==), Show, show, (.), ($) ) import qualified Prelude import qualified GHC.Base +import qualified System.IO.Unsafe --- used for extracting strings -bin2ascii = - (\ b0 b1 b2 b3 b4 b5 b6 b7 -> - let f b i = if b then 1 `shiftL` i else 0 - in Data.Char.chr (f b0 0 .|. f b1 1 .|. f b2 2 .|. f b3 3 .|. f b4 4 .|. f b5 5 .|. f b6 6 .|. f b7 7)) ---bin2ascii' = --- (\ f c -> let n = Char.code c in let h i = (n .&. (1 `shiftL` i)) /= 0 in f (h 0) (h 1) (h 2) (h 3) (h 4) (h 5) (h 6) (h 7)) ---shiftAscii = --- \ b c -> Data.Char.chr (((Char.code c) `shiftL` 1) .&. 255 .|. if b then 1 else 0) +getTyConTyVars :: TyCon.TyCon -> [Var.TyVar] +getTyConTyVars tc = + if TyCon.isFunTyCon tc + then [] + else if TyCon.isPrimTyCon tc + then [] + else TyCon.tyConTyVars tc --- crude way of casting Coq "error monad" into Haskell exceptions -errOrFail :: OrError a -> a -errOrFail (OK x) = x -errOrFail (Error s) = Prelude.error s +cmpAlts :: (CoreSyn.AltCon,[Var.Var],CoreSyn.Expr Var.Var) -> (CoreSyn.AltCon,[Var.Var],CoreSyn.Expr Var.Var) -> Data.Ord.Ordering +cmpAlts (CoreSyn.DEFAULT,_,_) _ = Data.Ord.LT +cmpAlts _ (CoreSyn.DEFAULT,_,_) = Data.Ord.GT +cmpAlts (a1,_,_) (a2,_,_) = Data.Ord.compare a2 a1 -getTyConTyVars :: TyCon.TyCon -> [Var.TyVar] -getTyConTyVars tc = if TyCon.isFunTyCon tc then [] else if TyCon.isPrimTyCon tc then [] else TyCon.tyConTyVars tc +sortAlts :: [(CoreSyn.AltCon,[Var.Var],CoreSyn.Expr Var.Var)] -> [(CoreSyn.AltCon,[Var.Var],CoreSyn.Expr Var.Var)] +sortAlts x = Data.List.sortBy (\a b -> if a `CoreSyn.ltAlt` b then Data.Ord.LT else Data.Ord.GT) x --- to do: this could be moved into Coq -coreVarToWeakVar :: Var.Var -> WeakVar -coreVarToWeakVar v | Id.isId v = WExprVar (WeakExprVar v (errOrFail (coreTypeToWeakType (Var.varType v)))) -coreVarToWeakVar v | Var.isTyVar v = WTypeVar (WeakTypeVar v (coreKindToKind (Var.varType v))) -coreVarToWeakVar v | Var.isCoVar v = WCoerVar (WeakCoerVar v (Prelude.error "FIXME") (Prelude.error "FIXME")) -coreVarToWeakVar _ = - Prelude.error "Var.Var that is neither an expression variable, type variable, nor coercion variable!" +coreVarToWeakVar :: Var.Var -> CoreVarToWeakVarResult +coreVarToWeakVar v | Id.isId v = CVTWVR_EVar (Var.varType v) +coreVarToWeakVar v | Var.isTyVar v = CVTWVR_TyVar (coreKindToKind (Var.varType v)) +coreVarToWeakVar v | Var.isCoVar v = CVTWVR_CoVar (Prelude.fst (Coercion.coercionKind (Var.varType v))) + (Prelude.snd (Coercion.coercionKind (Var.varType v))) +coreVarToWeakVar _ = Prelude.error "Var.Var that is neither an expression, type variable, nor coercion variable!" -tyConOrTyFun :: TyCon.TyCon -> Prelude.Either TyCon.TyCon TyCon.TyCon ---FIXME: go back to this ---tyConOrTyFun n = if TyCon.isFamInstTyCon n then Prelude.Left n else Prelude.Right n -tyConOrTyFun n = if TyCon.isFamInstTyCon n then Prelude.Left n else Prelude.Left n +rawTyFunKind :: TyCon.TyCon -> ( [Kind] , Kind ) +rawTyFunKind tc = ((Prelude.map coreKindToKind (Prelude.take (TyCon.tyConArity tc) argk)) + , + coreKindToKind (Coercion.mkArrowKinds (Prelude.drop (TyCon.tyConArity tc) argk) retk)) + where (argk,retk) = Coercion.splitKindFunTys (TyCon.tyConKind tc) -tyFunResultKind :: TyCon.TyCon -> Kind -tyFunResultKind tc = coreKindToKind (TyCon.tyConKind tc) +tyConOrTyFun :: TyCon.TyCon -> Prelude.Either TyCon.TyCon TyCon.TyCon +tyConOrTyFun n = + if n == TysPrim.statePrimTyCon -- special-purpose hack treat State# as a type family since it has kind *->* but no tyvars + then Prelude.Right n + else if TyCon.isFamInstTyCon n + then Prelude.Right n + else if TyCon.isSynTyCon n + then Prelude.Right n + else Prelude.Left n nat2int :: Nat -> Prelude.Int nat2int O = 0 @@ -67,37 +80,44 @@ nat2int (S x) = 1 + (nat2int x) natToString :: Nat -> Prelude.String natToString n = show (nat2int n) --- only needs to sanitize characters which might appear in Haskell identifiers sanitizeForLatex :: Prelude.String -> Prelude.String -sanitizeForLatex [] = [] +sanitizeForLatex [] = [] sanitizeForLatex ('_':x) = "\\_"++(sanitizeForLatex x) sanitizeForLatex ('$':x) = "\\$"++(sanitizeForLatex x) sanitizeForLatex ('#':x) = "\\#"++(sanitizeForLatex x) -sanitizeForLatex (c:x) = c:(sanitizeForLatex x) +sanitizeForLatex (c:x) = c:(sanitizeForLatex x) +kindToCoreKind :: Kind -> TypeRep.Kind +kindToCoreKind KindStar = TypeRep.liftedTypeKind +kindToCoreKind (KindArrow k1 k2) = Coercion.mkArrowKind (kindToCoreKind k1) (kindToCoreKind k2) +kindToCoreKind k = Prelude.error ((Prelude.++) + "kindToCoreKind does not know how to handle kind " + (kindToString k)) coreKindToKind :: TypeRep.Kind -> Kind coreKindToKind k = case Coercion.splitKindFunTy_maybe k of - Prelude.Just (k1,k2) -> KindTypeFunction (coreKindToKind k1) (coreKindToKind k2) + Prelude.Just (k1,k2) -> KindArrow (coreKindToKind k1) (coreKindToKind k2) Prelude.Nothing -> - if (Coercion.isLiftedTypeKind k) then KindType - else if (Coercion.isUnliftedTypeKind k) then KindUnliftedType - else if (Coercion.isOpenTypeKind k) then KindOpenType - else if (Coercion.isArgTypeKind k) then KindArgType - else if (Coercion.isUbxTupleKind k) then KindUnboxedTuple + if (Coercion.isLiftedTypeKind k) then KindStar + else if (Coercion.isUnliftedTypeKind k) then KindStar + else if (Coercion.isArgTypeKind k) then KindStar + else if (Coercion.isUbxTupleKind k) then KindStar + else if (Coercion.isOpenTypeKind k) then KindStar +-- +-- The "subkinding" in GHC is not dealt with in System FC, and dealing +-- with it is not actually as simple as you'd think. +-- +-- else if (Coercion.isUnliftedTypeKind k) then KindUnliftedType +-- else if (Coercion.isOpenTypeKind k) then KindOpenType +-- else if (Coercion.isArgTypeKind k) then KindArgType +-- else if (Coercion.isUbxTupleKind k) then KindUnboxedTuple +-- else if (Coercion.isTySuperKind k) then Prelude.error "coreKindToKind got the kind-of-the-kind-of-types" else if (Coercion.isCoSuperKind k) then Prelude.error "coreKindToKind got the kind-of-the-kind-of-coercions" else Prelude.error ((Prelude.++) "coreKindToKind got an unknown kind: " (Outputable.showSDoc (Outputable.ppr k))) outputableToString :: Outputable.Outputable a => a -> Prelude.String -outputableToString = (\x -> Outputable.showSDoc (Outputable.ppr x)) - --- TO DO: I think we can remove this now -checkTypeEquality :: Type.Type -> Type.Type -> Prelude.Bool -checkTypeEquality t1 t2 = Type.tcEqType (Type.expandTypeSynonyms t1) (Type.expandTypeSynonyms t2) - ---showType t = outputableToString (Type.expandTypeSynonyms t) -showType t = outputableToString (coreViewDeep t) +outputableToString = (\x -> Outputable.showSDocDebug (Outputable.ppr x)) coreViewDeep :: Type.Type -> Type.Type coreViewDeep t = @@ -113,3 +133,74 @@ coreViewDeep t = TypeRep.PredTy p -> case Type.coreView t of Prelude.Nothing -> TypeRep.PredTy p Prelude.Just t' -> t' + +getSourceAndTargetTypesOfCoercion :: Type.Type -> (Type.Type,Type.Type) +getSourceAndTargetTypesOfCoercion c = Coercion.coercionKind (Coercion.typeKind c) + +{- +-- REMEMBER: cotycon applications may be oversaturated + case c of + TypeRep.TyVarTy v -> WCoVar (WeakCoerVar v (Prelude.error "FIXME") (Prelude.error "FIXME") (Prelude.error "FIXME")) + TypeRep.AppTy t1 t2 -> WCoApp (coreCoercionToWeakCoercion t1) (coreCoercionToWeakCoercion t2) + TypeRep.TyConApp tc t -> + case TyCon.isCoercionTyCon_maybe tc of + Prelude.Nothing -> Prelude.error ((Prelude.++) "coreCoercionToWeakCoercion got isCoercionTyCon_maybe " (outputableToString c)) + Prelude.Just (_, ctcd) -> + case (ctcd,t) of + (TyCon.CoTrans , [x,y] ) -> WCoComp (coreCoercionToWeakCoercion x) (coreCoercionToWeakCoercion y) + (TyCon.CoSym , [x] ) -> WCoSym (coreCoercionToWeakCoercion x) + (TyCon.CoLeft , [x] ) -> WCoLeft (coreCoercionToWeakCoercion x) + (TyCon.CoRight , [x] ) -> WCoLeft (coreCoercionToWeakCoercion x) +-- (TyCon.CoUnsafe, [t1, t2 ] ) -> WCoUnsafe (coreTypeToWeakType t1) (coreTypeToWeakType t2) + (TyCon.CoTrans , [] ) -> Prelude.error "CoTrans is not in post-publication-appendix SystemFC1" + (TyCon.CoCsel1 , [] ) -> Prelude.error "CoCsel1 is not in post-publication-appendix SystemFC1" + (TyCon.CoCsel2 , [] ) -> Prelude.error "CoCsel2 is not in post-publication-appendix SystemFC1" + (TyCon.CoCselR , [] ) -> Prelude.error "CoCselR is not in post-publication-appendix SystemFC1" + (TyCon.CoInst , [] ) -> Prelude.error "CoInst is not in post-publication-appendix SystemFC1" + (TyCon.CoAxiom _ _ _ , _ ) -> Prelude.error "CoAxiom is not yet implemented (FIXME)" + ( _, [ t1 , t2 ]) -> WCoUnsafe (errOrFail (coreTypeToWeakType t1)) (errOrFail (coreTypeToWeakType t2)) + _ -> Prelude.error ((Prelude.++) "coreCoercionToWeakCoercion got " (outputableToString c)) + _ -> Prelude.error ((Prelude.++) "coreCoercionToWeakCoercion got " (outputableToString c)) +-} +-- TypeRep.ForAllTy v t -> WCoAll (Prelude.error "FIXME") (coreTypeToWeakType t) +-- FIXME x y -> WCoAppT (coreCoercionToWeakCoercion x) (coreCoercionToWeakType y) +-- CoreSyn.Type t -> WCoType (coreTypeToWeakType t) + +{- +weakCoercionToCoreCoercion :: CoreCoercion -> Type.Type +| WCoVar (weakCoerVar _ _ t1 t2) => (t1,t2) +| WCoType t => Prelude_error "FIXME WCoType" +| WCoApp c1 c2 => Prelude_error "FIXME WCoApp" +| WCoAppT c t => Prelude_error "FIXME WCoAppT" +| WCoAll k f => Prelude_error "FIXME WCoAll" +| WCoSym c => let (t2,t1) := weakCoercionTypes c in (t1,t2) +| WCoComp c1 c2 => Prelude_error "FIXME WCoComp" +| WCoLeft c => Prelude_error "FIXME WCoLeft" +| WCoRight c => Prelude_error "FIXME WCoRight" +| WCoUnsafe t1 t2 => (t1,t2) +-} + +{-# NOINLINE trace #-} +trace :: Prelude.String -> a -> a +trace msg x = x + +--trace = Debug.Trace.trace +--trace msg x = x +--trace msg x = System.IO.Unsafe.unsafePerformIO $ Prelude.return x +--trace s x = x +--trace msg x = System.IO.Unsafe.unsafePerformIO $ +-- (Prelude.>>=) (System.IO.hPutStrLn System.IO.stdout msg) (\_ -> Prelude.return x) +--trace msg x = System.IO.Unsafe.unsafePerformIO $ +-- (Prelude.>>=) (System.IO.hPutStr System.IO.stdout " ") (\_ -> Prelude.return x) + + +{- -- used for extracting strings WITHOUT the patch for Coq +bin2ascii = + (\ b0 b1 b2 b3 b4 b5 b6 b7 -> + let f b i = if b then 1 `shiftL` i else 0 + in Data.Char.chr (f b0 0 .|. f b1 1 .|. f b2 2 .|. f b3 3 .|. f b4 4 .|. f b5 5 .|. f b6 6 .|. f b7 7)) +-} + +-- I'm leaving this here (commented out) in case I ever need it again) +--checkTypeEquality :: Type.Type -> Type.Type -> Prelude.Bool +--checkTypeEquality t1 t2 = Type.tcEqType (Type.expandTypeSynonyms t1) (Type.expandTypeSynonyms t2)