Scope(..),
VM,
- noV, tryV, maybeV, orElseV, localV, closedV, initV,
+ noV, tryV, maybeV, orElseV, fixV, localV, closedV, initV,
cloneName, newLocalVar, newTyVar,
Builtins(..), paDictTyCon,
builtin,
GlobalEnv(..),
+ setInstEnvs,
readGEnv, setGEnv, updGEnv,
LocalEnv(..),
readLEnv, setLEnv, updLEnv,
- defGlobalVar, lookupVar,
- lookupTyCon,
- lookupTyVarPA, extendTyVarPA, deleteTyVarPA,
+ lookupVar, defGlobalVar,
+ lookupTyCon, defTyCon,
+ lookupDataCon, defDataCon,
+ lookupTyVarPA, defLocalTyVar, defLocalTyVarWithPA, localTyVars,
lookupInst, lookupFamInst
) where
import CoreSyn
import Class
import TyCon
+import DataCon
import Type
import Var
import VarEnv
--
, global_tycons :: NameEnv TyCon
- -- Mapping from TyCons to their PA dictionaries
+ -- Mapping from DataCons to their vectorised versions
--
- , global_tycon_pa :: NameEnv CoreExpr
+ , global_datacons :: NameEnv DataCon
-- External package inst-env & home-package inst-env for class
-- instances
--
local_vars :: VarEnv (CoreExpr, CoreExpr)
+ -- In-scope type variables
+ --
+ , local_tyvars :: [TyVar]
+
-- Mapping from tyvars to their PA dictionaries
, local_tyvar_pa :: VarEnv CoreExpr
}
-initGlobalEnv :: VectInfo -> (InstEnv, InstEnv) -> FamInstEnvs -> GlobalEnv
-initGlobalEnv info instEnvs famInstEnvs
+initGlobalEnv :: VectInfo -> (InstEnv, InstEnv) -> FamInstEnvs -> Builtins -> GlobalEnv
+initGlobalEnv info instEnvs famInstEnvs bi
= GlobalEnv {
global_vars = mapVarEnv (Var . snd) $ vectInfoVar info
, global_exported_vars = emptyVarEnv
- , global_tycons = mapNameEnv snd $ vectInfoTyCon info
- , global_tycon_pa = emptyNameEnv
+ , global_tycons = extendNameEnv (mapNameEnv snd (vectInfoTyCon info))
+ (tyConName funTyCon) (closureTyCon bi)
+
+ , global_datacons = mapNameEnv snd $ vectInfoDataCon info
, global_inst_env = instEnvs
, global_fam_inst_env = famInstEnvs
, global_bindings = []
}
+setInstEnvs :: InstEnv -> FamInstEnv -> GlobalEnv -> GlobalEnv
+setInstEnvs l_inst l_fam_inst genv
+ | (g_inst, _) <- global_inst_env genv
+ , (g_fam_inst, _) <- global_fam_inst_env genv
+ = genv { global_inst_env = (g_inst, l_inst)
+ , global_fam_inst_env = (g_fam_inst, l_fam_inst) }
+
emptyLocalEnv = LocalEnv {
local_vars = emptyVarEnv
+ , local_tyvars = []
, local_tyvar_pa = emptyVarEnv
}
updVectInfo :: GlobalEnv -> TypeEnv -> VectInfo -> VectInfo
updVectInfo env tyenv info
= info {
- vectInfoVar = global_exported_vars env
- , vectInfoTyCon = tc_env
+ vectInfoVar = global_exported_vars env
+ , vectInfoTyCon = mk_env typeEnvTyCons global_tycons
+ , vectInfoDataCon = mk_env typeEnvDataCons global_datacons
}
where
- tc_env = mkNameEnv [(tc_name, (tc,tc'))
- | tc <- typeEnvTyCons tyenv
- , let tc_name = tyConName tc
- , Just tc' <- [lookupNameEnv (global_tycons env) tc_name]]
+ mk_env from_tyenv from_env = mkNameEnv [(name, (from,to))
+ | from <- from_tyenv tyenv
+ , let name = getName from
+ , Just to <- [lookupNameEnv (from_env env) name]]
data VResult a = Yes GlobalEnv LocalEnv a | No
orElseV :: VM a -> VM a -> VM a
orElseV p q = maybe q return =<< tryV p
+fixV :: (a -> VM a) -> VM a
+fixV f = VM (\bi genv lenv -> fixDs $ \r -> runVM (f (unYes r)) bi genv lenv )
+ where
+ unYes (Yes _ _ x) = x
+
localV :: VM a -> VM a
localV p = do
env <- readLEnv id
$ maybeV (readGEnv $ \env -> lookupVarEnv (global_vars env) v)
lookupTyCon :: TyCon -> VM (Maybe TyCon)
-lookupTyCon tc = readGEnv $ \env -> lookupNameEnv (global_tycons env) (tyConName tc)
+lookupTyCon tc
+ | isUnLiftedTyCon tc || isTupleTyCon tc = return (Just tc)
+
+ | otherwise = readGEnv $ \env -> lookupNameEnv (global_tycons env) (tyConName tc)
+
+defTyCon :: TyCon -> TyCon -> VM ()
+defTyCon tc tc' = updGEnv $ \env ->
+ env { global_tycons = extendNameEnv (global_tycons env) (tyConName tc) tc' }
+
+lookupDataCon :: DataCon -> VM (Maybe DataCon)
+lookupDataCon dc = readGEnv $ \env -> lookupNameEnv (global_datacons env) (dataConName dc)
+
+defDataCon :: DataCon -> DataCon -> VM ()
+defDataCon dc dc' = updGEnv $ \env ->
+ env { global_datacons = extendNameEnv (global_datacons env) (dataConName dc) dc' }
lookupTyVarPA :: Var -> VM (Maybe CoreExpr)
lookupTyVarPA tv = readLEnv $ \env -> lookupVarEnv (local_tyvar_pa env) tv
-extendTyVarPA :: Var -> CoreExpr -> VM ()
-extendTyVarPA tv pa = updLEnv $ \env -> env { local_tyvar_pa = extendVarEnv (local_tyvar_pa env) tv pa }
+defLocalTyVar :: TyVar -> VM ()
+defLocalTyVar tv = updLEnv $ \env ->
+ env { local_tyvars = tv : local_tyvars env
+ , local_tyvar_pa = local_tyvar_pa env `delVarEnv` tv
+ }
+
+defLocalTyVarWithPA :: TyVar -> CoreExpr -> VM ()
+defLocalTyVarWithPA tv pa = updLEnv $ \env ->
+ env { local_tyvars = tv : local_tyvars env
+ , local_tyvar_pa = extendVarEnv (local_tyvar_pa env) tv pa
+ }
-deleteTyVarPA :: Var -> VM ()
-deleteTyVarPA tv = updLEnv $ \env -> env { local_tyvar_pa = delVarEnv (local_tyvar_pa env) tv }
+localTyVars :: VM [TyVar]
+localTyVars = readLEnv (reverse . local_tyvars)
-- Look up the dfun of a class instance.
--
go instEnvs famInstEnvs =
do
builtins <- initBuiltins
- r <- runVM p builtins (initGlobalEnv info instEnvs famInstEnvs)
+ r <- runVM p builtins (initGlobalEnv info instEnvs famInstEnvs builtins)
emptyLocalEnv
case r of
Yes genv _ x -> return $ Just (new_info genv, x)