collectAnnValBinders,
mkDataConTag,
splitClosureTy,
- mkPADictType, mkPArrayType,
- parrayReprTyCon, parrayReprDataCon,
+ mkPRepr, mkToPRepr, mkFromPRepr,
+ mkPADictType, mkPArrayType, mkPReprType,
+ parrayReprTyCon, parrayReprDataCon, mkVScrut,
+ prDictOfType,
paDictArgType, paDictOfType, paDFunType,
paMethod, lengthPA, replicatePA, emptyPA, liftPA,
polyAbstract, polyApply, polyVApply,
import Var
import Id ( mkWildId )
import MkId ( unwrapFamInstScrut )
+import Name ( Name )
import PrelNames
import TysWiredIn
import BasicTypes ( Boxity(..) )
import Outputable
import FastString
-import Control.Monad ( liftM, zipWithM_ )
+import Control.Monad ( liftM, liftM2, zipWithM_ )
collectAnnTypeArgs :: AnnExpr b ann -> (AnnExpr b ann, [Type])
collectAnnTypeArgs expr = go expr []
mkDataConTag :: DataCon -> CoreExpr
mkDataConTag dc = mkConApp intDataCon [mkIntLitInt $ dataConTag dc]
-isClosureTyCon :: TyCon -> Bool
-isClosureTyCon tc = tyConName tc == closureTyConName
+splitUnTy :: String -> Name -> Type -> Type
+splitUnTy s name ty
+ | Just (tc, [ty']) <- splitTyConApp_maybe ty
+ , tyConName tc == name
+ = ty'
-splitClosureTy :: Type -> (Type, Type)
-splitClosureTy ty
- | Just (tc, [arg_ty, res_ty]) <- splitTyConApp_maybe ty
- , isClosureTyCon tc
- = (arg_ty, res_ty)
+ | otherwise = pprPanic s (ppr ty)
+
+splitBinTy :: String -> Name -> Type -> (Type, Type)
+splitBinTy s name ty
+ | Just (tc, [ty1, ty2]) <- splitTyConApp_maybe ty
+ , tyConName tc == name
+ = (ty1, ty2)
+
+ | otherwise = pprPanic s (ppr ty)
+
+splitCrossTy :: Type -> (Type, Type)
+splitCrossTy = splitBinTy "splitCrossTy" ndpCrossTyConName
+
+splitPlusTy :: Type -> (Type, Type)
+splitPlusTy = splitBinTy "splitSumTy" ndpPlusTyConName
- | otherwise = pprPanic "splitClosureTy" (ppr ty)
+splitEmbedTy :: Type -> Type
+splitEmbedTy = splitUnTy "splitEmbedTy" embedTyConName
-isPArrayTyCon :: TyCon -> Bool
-isPArrayTyCon tc = tyConName tc == parrayTyConName
+splitClosureTy :: Type -> (Type, Type)
+splitClosureTy = splitBinTy "splitClosureTy" closureTyConName
splitPArrayTy :: Type -> Type
-splitPArrayTy ty
- | Just (tc, [arg_ty]) <- splitTyConApp_maybe ty
- , isPArrayTyCon tc
- = arg_ty
+splitPArrayTy = splitUnTy "splitPArrayTy" parrayTyConName
- | otherwise = pprPanic "splitPArrayTy" (ppr ty)
+mkBuiltinTyConApp :: (Builtins -> TyCon) -> [Type] -> VM Type
+mkBuiltinTyConApp get_tc tys
+ = do
+ tc <- builtin get_tc
+ return $ mkTyConApp tc tys
-mkClosureType :: Type -> Type -> VM Type
-mkClosureType arg_ty res_ty
+mkBuiltinTyConApps :: (Builtins -> TyCon) -> [Type] -> Type -> VM Type
+mkBuiltinTyConApps get_tc tys ty
= do
- tc <- builtin closureTyCon
- return $ mkTyConApp tc [arg_ty, res_ty]
+ tc <- builtin get_tc
+ return $ foldr (mk tc) ty tys
+ where
+ mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
-mkClosureTypes :: [Type] -> Type -> VM Type
-mkClosureTypes arg_tys res_ty
+mkBuiltinTyConApps1 :: (Builtins -> TyCon) -> Type -> [Type] -> VM Type
+mkBuiltinTyConApps1 get_tc dft [] = return dft
+mkBuiltinTyConApps1 get_tc dft tys
= do
- tc <- builtin closureTyCon
- return $ foldr (mk tc) res_ty arg_tys
+ tc <- builtin get_tc
+ case tys of
+ [] -> pprPanic "mkBuiltinTyConApps1" (ppr tc)
+ _ -> return $ foldr1 (mk tc) tys
where
- mk tc arg_ty res_ty = mkTyConApp tc [arg_ty, res_ty]
+ mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
-mkPADictType :: Type -> VM Type
-mkPADictType ty
+mkPRepr :: [[Type]] -> VM Type
+mkPRepr [] = return unitTy
+mkPRepr tys
= do
- tc <- builtin paTyCon
- return $ TyConApp tc [ty]
+ embed <- builtin embedTyCon
+ cross <- builtin crossTyCon
+ plus <- builtin plusTyCon
-mkPArrayType :: Type -> VM Type
-mkPArrayType ty
+ let mk_embed ty = mkTyConApp embed [ty]
+ mk_cross ty1 ty2 = mkTyConApp cross [ty1, ty2]
+ mk_plus ty1 ty2 = mkTyConApp plus [ty1, ty2]
+
+ mk_tup [] = unitTy
+ mk_tup tys = foldr1 mk_cross tys
+
+ mk_sum [] = unitTy
+ mk_sum tys = foldr1 mk_plus tys
+
+ return . mk_sum
+ . map (mk_tup . map mk_embed)
+ $ tys
+
+mkToPRepr :: [[CoreExpr]] -> VM ([CoreExpr], Type)
+mkToPRepr ess
+ = do
+ embed_tc <- builtin embedTyCon
+ embed_dc <- builtin embedDataCon
+ cross_tc <- builtin crossTyCon
+ cross_dc <- builtin crossDataCon
+ plus_tc <- builtin plusTyCon
+ left_dc <- builtin leftDataCon
+ right_dc <- builtin rightDataCon
+
+ let mk_embed expr
+ = (mkConApp embed_dc [Type ty, expr],
+ mkTyConApp embed_tc [ty])
+ where ty = exprType expr
+
+ mk_cross (expr1, ty1) (expr2, ty2)
+ = (mkConApp cross_dc [Type ty1, Type ty2, expr1, expr2],
+ mkTyConApp cross_tc [ty1, ty2])
+
+ mk_tup [] = (Var unitDataConId, unitTy)
+ mk_tup es = foldr1 mk_cross es
+
+ mk_sum [] = ([Var unitDataConId], unitTy)
+ mk_sum [(expr, ty)] = ([expr], ty)
+ mk_sum ((expr, lty) : es)
+ = let (alts, rty) = mk_sum es
+ in
+ (mkConApp left_dc [Type lty, Type rty, expr]
+ : [mkConApp right_dc [Type lty, Type rty, alt] | alt <- alts],
+ mkTyConApp plus_tc [lty, rty])
+
+ return . mk_sum $ map (mk_tup . map mk_embed) ess
+
+mkFromPRepr :: CoreExpr -> Type -> [([Var], CoreExpr)] -> VM CoreExpr
+mkFromPRepr scrut res_ty alts
= do
- tc <- builtin parrayTyCon
- return $ TyConApp tc [ty]
+ embed_dc <- builtin embedDataCon
+ cross_dc <- builtin crossDataCon
+ left_dc <- builtin leftDataCon
+ right_dc <- builtin rightDataCon
+ pa_tc <- builtin paTyCon
+
+ let un_embed expr ty var res
+ = Case expr (mkWildId ty) res_ty
+ [(DataAlt embed_dc, [var], res)]
+
+ un_cross expr ty var1 var2 res
+ = Case expr (mkWildId ty) res_ty
+ [(DataAlt cross_dc, [var1, var2], res)]
+
+ un_tup expr ty [] res = return res
+ un_tup expr ty [var] res = return $ un_embed expr ty var res
+ un_tup expr ty (var : vars) res
+ = do
+ lv <- newLocalVar FSLIT("x") lty
+ rv <- newLocalVar FSLIT("y") rty
+ liftM (un_cross expr ty lv rv
+ . un_embed (Var lv) lty var)
+ (un_tup (Var rv) rty vars res)
+ where
+ (lty, rty) = splitCrossTy ty
+
+ un_plus expr ty var1 var2 res1 res2
+ = Case expr (mkWildId ty) res_ty
+ [(DataAlt left_dc, [var1], res1),
+ (DataAlt right_dc, [var2], res2)]
+
+ un_sum expr ty [(vars, res)] = un_tup expr ty vars res
+ un_sum expr ty ((vars, res) : alts)
+ = do
+ lv <- newLocalVar FSLIT("l") lty
+ rv <- newLocalVar FSLIT("r") rty
+ liftM2 (un_plus expr ty lv rv)
+ (un_tup (Var lv) lty vars res)
+ (un_sum (Var rv) rty alts)
+ where
+ (lty, rty) = splitPlusTy ty
+
+ un_sum scrut (exprType scrut) alts
+
+mkClosureType :: Type -> Type -> VM Type
+mkClosureType arg_ty res_ty = mkBuiltinTyConApp closureTyCon [arg_ty, res_ty]
+
+mkClosureTypes :: [Type] -> Type -> VM Type
+mkClosureTypes = mkBuiltinTyConApps closureTyCon
+
+mkPReprType :: Type -> VM Type
+mkPReprType ty = mkBuiltinTyConApp preprTyCon [ty]
+
+mkPADictType :: Type -> VM Type
+mkPADictType ty = mkBuiltinTyConApp paTyCon [ty]
+
+mkPArrayType :: Type -> VM Type
+mkPArrayType ty = mkBuiltinTyConApp parrayTyCon [ty]
parrayReprTyCon :: Type -> VM (TyCon, [Type])
parrayReprTyCon ty = builtin parrayTyCon >>= (`lookupFamInst` [ty])
let [dc] = tyConDataCons tc
return (dc, arg_tys)
+mkVScrut :: VExpr -> VM (VExpr, TyCon, [Type])
+mkVScrut (ve, le)
+ = do
+ (tc, arg_tys) <- parrayReprTyCon (exprType ve)
+ return ((ve, unwrapFamInstScrut tc arg_tys le), tc, arg_tys)
+
+
+prDictOfType :: Type -> VM CoreExpr
+prDictOfType orig_ty
+ | Just (tycon, ty_args) <- splitTyConApp_maybe orig_ty
+ = do
+ dfun <- traceMaybeV "prDictOfType" (ppr tycon) (lookupTyConPR tycon)
+ prDFunApply (Var dfun) ty_args
+
+prDFunApply :: CoreExpr -> [Type] -> VM CoreExpr
+prDFunApply dfun tys
+ = do
+ args <- mapM mkDFunArg arg_tys
+ return $ mkApps mono_dfun args
+ where
+ mono_dfun = mkTyApps dfun tys
+ (arg_tys, _) = splitFunTys (exprType mono_dfun)
+
+mkDFunArg :: Type -> VM CoreExpr
+mkDFunArg ty
+ | Just (tycon, [arg]) <- splitTyConApp_maybe ty
+
+ = let name = tyConName tycon
+
+ get_dict | name == paTyConName = paDictOfType
+ | name == prTyConName = prDictOfType
+ | otherwise = pprPanic "mkDFunArg" (ppr ty)
+
+ in get_dict arg
+
+mkDFunArg ty = pprPanic "mkDFunArg" (ppr ty)
+
paDictArgType :: TyVar -> VM (Maybe Type)
paDictArgType tv = go (TyVarTy tv) (tyVarKind tv)
where
(arg_ty, res_ty) = splitClosureTy (exprType vclo)
buildClosures :: [TyVar] -> [VVar] -> [Type] -> Type -> VM VExpr -> VM VExpr
+buildClosures tvs vars [] res_ty mk_body
+ = mk_body
buildClosures tvs vars [arg_ty] res_ty mk_body
= buildClosure tvs vars arg_ty res_ty mk_body
buildClosures tvs vars (arg_ty : arg_tys) res_ty mk_body
projects / ghc-hetmet.git / blobdiff