mkPADictType, mkPArrayType, mkPReprType,
parrayCoerce, parrayReprTyCon, parrayReprDataCon, mkVScrut,
- prDictOfType, prCoerce,
+ prDFunOfTyCon, prCoerce,
paDictArgType, paDictOfType, paDFunType,
- paMethod, lengthPA, replicatePA, emptyPA, liftPA,
+ paMethod, mkPR, lengthPA, replicatePA, emptyPA, liftPA,
polyAbstract, polyApply, polyVApply,
hoistBinding, hoistExpr, hoistPolyVExpr, takeHoisted,
buildClosure, buildClosures,
import Outputable
import FastString
+import Maybes ( orElse )
import Data.List ( zipWith4 )
import Control.Monad ( liftM, liftM2, zipWithM_ )
mk tc ty1 ty2 = mkTyConApp tc [ty1,ty2]
data TyConRepr = TyConRepr {
- repr_tyvars :: [TyVar]
- , repr_tys :: [[Type]]
-
- , repr_prod_tycons :: [Maybe TyCon]
- , repr_prod_tys :: [Type]
- , repr_sum_tycon :: Maybe TyCon
- , repr_type :: Type
+ repr_tyvars :: [TyVar]
+ , repr_tys :: [[Type]]
+
+ , repr_prod_tycons :: [Maybe TyCon]
+ , repr_prod_data_cons :: [Maybe DataCon]
+ , repr_prod_tys :: [Type]
+ , repr_sum_tycon :: Maybe TyCon
+ , repr_sum_data_cons :: [DataCon]
+ , repr_type :: Type
}
mkTyConRepr :: TyCon -> VM TyConRepr
sum_tycon <- mk_tycon sumTyCon prod_tys
return $ TyConRepr {
- repr_tyvars = tyvars
- , repr_tys = rep_tys
-
- , repr_prod_tycons = prod_tycons
- , repr_prod_tys = prod_tys
- , repr_sum_tycon = sum_tycon
- , repr_type = mk_tc_app_maybe sum_tycon prod_tys
+ repr_tyvars = tyvars
+ , repr_tys = rep_tys
+
+ , repr_prod_tycons = prod_tycons
+ , repr_prod_data_cons = map (fmap mk_single_datacon) prod_tycons
+ , repr_prod_tys = prod_tys
+ , repr_sum_tycon = sum_tycon
+ , repr_sum_data_cons = fmap tyConDataCons sum_tycon `orElse` []
+ , repr_type = mk_tc_app_maybe sum_tycon prod_tys
}
where
tyvars = tyConTyVars vect_tc
| otherwise = return Nothing
where n = length tys
+ mk_single_datacon tc | [dc] <- tyConDataCons tc = dc
+
mk_tc_app_maybe Nothing [] = unitTy
mk_tc_app_maybe Nothing [ty] = ty
mk_tc_app_maybe (Just tc) tys = mkTyConApp tc tys
(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)
+prDFunOfTyCon :: TyCon -> VM CoreExpr
+prDFunOfTyCon tycon
+ = liftM Var (traceMaybeV "prDictOfTyCon" (ppr tycon) (lookupTyConPR tycon))
prCoerce :: TyCon -> [Type] -> CoreExpr -> VM CoreExpr
prCoerce repr_tc args expr