X-Git-Url: http://git.megacz.com/?p=coq-hetmet.git;a=blobdiff_plain;f=src%2FExtraction-prefix.hs;h=09f4b340b20bafdd288fd5a171357dbeff8fc487;hp=f9bdbe37fd2ea9ab989a914a77faac7e54c44280;hb=5cb97fa6ed28f55ca888bdadc4f145396cc02236;hpb=976b9bb93bf6ab296b3ac60dcdb4e87b1c665376 diff --git a/src/Extraction-prefix.hs b/src/Extraction-prefix.hs index f9bdbe3..09f4b34 100644 --- a/src/Extraction-prefix.hs +++ b/src/Extraction-prefix.hs @@ -1,11 +1,15 @@ -{-# 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 Kind +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 @@ -15,69 +19,105 @@ import qualified TyCon import qualified Coercion import qualified Var import qualified Id +import qualified Pair 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 --- crude way of casting Coq "error monad" into Haskell exceptions -errOrFail :: OrError a -> a -errOrFail (OK x) = x -errOrFail (Error s) = Prelude.error s +getTyConTyVars :: TyCon.TyCon -> [Var.TyVar] +getTyConTyVars tc = + if TyCon.isFunTyCon tc + then [] + else if TyCon.isPrimTyCon tc + then [] + else TyCon.tyConTyVars tc --- 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 = Prelude.error "FIXME coerVarSort not fully implemented" -coreVarToWeakVar _ = - Prelude.error "Var.Var that is neither an expression variable, type variable, nor coercion variable!" +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 + +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 + +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 | Coercion.isCoVar v = CVTWVR_CoVar (Prelude.fst (Coercion.coVarKind v)) (Prelude.snd (Coercion.coVarKind v)) +coreVarToWeakVar _ = Prelude.error "Var.Var that is neither an expression, type variable, nor coercion variable!" + +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) + +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 nat2int (S x) = 1 + (nat2int x) -nat2string :: Nat -> Prelude.String -nat2string n = show (nat2int n) +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 = Kind.liftedTypeKind +kindToCoreKind (KindArrow k1 k2) = Kind.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) + case Kind.splitKindFunTy_maybe k of + 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 - 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" + if (Kind.isLiftedTypeKind k) then KindStar + else if (Kind.isUnliftedTypeKind k) then KindStar + else if (Kind.isArgTypeKind k) then KindStar + else if (Kind.isUbxTupleKind k) then KindStar + else if (Kind.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 (Kind.isTySuperKind k) then Prelude.error "coreKindToKind got the kind-of-the-kind-of-types" 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)) - -checkTypeEquality :: Type.Type -> Type.Type -> Prelude.Bool --- checkTypeEquality t1 t2 = Type.coreEqType (coreViewDeep t1) (coreViewDeep t2) --- checkTypeEquality t1 t2 = Type.tcEqType (coreViewDeep t1) (coreViewDeep t2) -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 = @@ -93,3 +133,20 @@ coreViewDeep t = TypeRep.PredTy p -> case Type.coreView t of Prelude.Nothing -> TypeRep.PredTy p Prelude.Just t' -> t' + +{-# 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) + +-- 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)