module VectType ( vectTyCon, vectType, vectTypeEnv,
- PAInstance, painstInstance, buildPADict,
+ PAInstance, buildPADict,
vectDataConWorkers )
where
type TyConGroup = ([TyCon], UniqSet TyCon)
data PAInstance = PAInstance {
- painstInstance :: Instance
+ painstDFun :: Var
, painstOrigTyCon :: TyCon
, painstVectTyCon :: TyCon
, painstArrTyCon :: TyCon
}
-vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst], [PAInstance])
+vectTypeEnv :: TypeEnv -> VM (TypeEnv, [FamInst])
vectTypeEnv env
= do
cs <- readGEnv $ mk_map . global_tycons
vect_tcs = keep_tcs ++ new_tcs
parr_tcs <- zipWithM buildPArrayTyCon orig_tcs vect_tcs
- pa_insts <- sequence $ zipWith3 buildPAInstance orig_tcs vect_tcs parr_tcs
+ dfuns <- mapM mkPADFun vect_tcs
+ defTyConPAs (zip vect_tcs dfuns)
let all_new_tcs = new_tcs ++ parr_tcs
++ [ADataCon dc | tc <- all_new_tcs
, dc <- tyConDataCons tc])
- return (new_env, map mkLocalFamInst parr_tcs, pa_insts)
+ return (new_env, map mkLocalFamInst parr_tcs)
where
tycons = typeEnvTyCons env
groups = tyConGroups tycons
types = [ty | dc <- tyConDataCons vect_tc
, ty <- dataConRepArgTys dc]
-buildPAInstance :: TyCon -> TyCon -> TyCon -> VM PAInstance
-buildPAInstance orig_tc vect_tc arr_tc
- = do
- pa <- builtin paClass
- let inst_ty = mkForAllTys tvs
- . (mkFunTys $ mkPredTys [ClassP pa [ty] | ty <- arg_tys])
- $ mkPredTy (ClassP pa [mkTyConApp vect_tc arg_tys])
-
- dfun <- newExportedVar (mkPADFunOcc $ getOccName vect_tc) inst_ty
-
- return $ PAInstance {
- painstInstance = mkLocalInstance dfun NoOverlap
- , painstOrigTyCon = orig_tc
- , painstVectTyCon = vect_tc
- , painstArrTyCon = arr_tc
- }
- where
- tvs = tyConTyVars arr_tc
- arg_tys = mkTyVarTys tvs
+mkPADFun :: TyCon -> VM Var
+mkPADFun vect_tc
+ = newExportedVar (mkPADFunOcc $ getOccName vect_tc) =<< paDFunType vect_tc
buildPADict :: PAInstance -> VM [(Var, CoreExpr)]
buildPADict (PAInstance {
- painstInstance = inst
+ painstDFun = dfun
, painstVectTyCon = vect_tc
, painstArrTyCon = arr_tc })
= polyAbstract (tyConTyVars arr_tc) $ \abstract ->
meth_binds <- mapM (mk_method shape) paMethods
let meth_exprs = map (Var . fst) meth_binds
- pa_dc <- builtin paDictDataCon
+ pa_dc <- builtin paDataCon
let dict = mkConApp pa_dc (Type (mkTyConApp vect_tc arg_tys) : meth_exprs)
body = Let (Rec meth_binds) dict
- return [(instanceDFunId inst, mkInlineMe $ abstract body)]
+ return [(dfun, mkInlineMe $ abstract body)]
where
tvs = tyConTyVars arr_tc
arg_tys = mkTyVarTys tvs