X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FcoreSyn%2FMkExternalCore.lhs;h=78008e16470fdb12305469d066f54b1417344c7e;hp=3315240edd01e9a7401a8d087501ae42fd842260;hb=467f588c25e6d7825a11eff018a67727b3dea71b;hpb=ee2dd59cf1c96437696b9ec39b35dd1beea259a1 diff --git a/compiler/coreSyn/MkExternalCore.lhs b/compiler/coreSyn/MkExternalCore.lhs index 3315240..78008e1 100644 --- a/compiler/coreSyn/MkExternalCore.lhs +++ b/compiler/coreSyn/MkExternalCore.lhs @@ -1,7 +1,13 @@ -% -% (c) The University of Glasgow 2001 + +% (c) The University of Glasgow 2001-2006 % \begin{code} +{-# OPTIONS -fno-warn-incomplete-patterns #-} +-- The above warning supression flag is a temporary kludge. +-- While working on this module you are encouraged to remove it and fix +-- any warnings in the module. See +-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings +-- for details module MkExternalCore ( emitExternalCore @@ -10,50 +16,49 @@ module MkExternalCore ( #include "HsVersions.h" import qualified ExternalCore as C -import Char import Module import CoreSyn import HscTypes import TyCon import TypeRep import Type -import PprExternalCore -- Instances -import DataCon ( DataCon, dataConTyVars, dataConRepArgTys, - dataConName, dataConTyCon ) -import CoreSyn +import PprExternalCore () -- Instances +import DataCon +import Coercion import Var import IdInfo -import Kind import Literal import Name +import NameSet +import UniqSet import Outputable import ForeignCall -import DynFlags ( DynFlags(..) ) -import StaticFlags ( opt_EmitExternalCore ) +import DynFlags +import StaticFlags import IO import FastString -emitExternalCore :: DynFlags -> CgGuts -> IO () -emitExternalCore dflags cg_guts +emitExternalCore :: DynFlags -> NameSet -> CgGuts -> IO () +emitExternalCore dflags exports cg_guts | opt_EmitExternalCore = (do handle <- openFile corename WriteMode - hPutStrLn handle (show (mkExternalCore cg_guts)) + hPutStrLn handle (show (mkExternalCore exports cg_guts)) hClose handle) - `catch` (\err -> pprPanic "Failed to open or write external core output file" - (text corename)) + `catch` (\_ -> pprPanic "Failed to open or write external core output file" + (text corename)) where corename = extCoreName dflags -emitExternalCore _ _ +emitExternalCore _ _ _ | otherwise = return () -mkExternalCore :: CgGuts -> C.Module +mkExternalCore :: NameSet -> CgGuts -> C.Module -- The ModGuts has been tidied, but the implicit bindings have -- not been injected, so we have to add them manually here -- We don't include the strange data-con *workers* because they are -- implicit in the data type declaration itself -mkExternalCore (CgGuts {cg_module=this_mod, cg_tycons = tycons, cg_binds = binds}) - = C.Module mname tdefs (map make_vdef binds) +mkExternalCore exports (CgGuts {cg_module=this_mod, cg_tycons = tycons, cg_binds = binds}) + = C.Module mname tdefs (map (make_vdef exports) binds) where mname = make_mid this_mod tdefs = foldr collect_tdefs [] tycons @@ -64,13 +69,11 @@ collect_tdefs tcon tdefs where tdef | isNewTyCon tcon = C.Newtype (make_con_qid (tyConName tcon)) (map make_tbind tyvars) repclause --- 20060420 GHC handles empty data types just fine. ExtCore should too! jds --- | null (tyConDataCons tcon) = error "MkExternalCore died: can't handle datatype declarations with no data constructors" | otherwise = C.Data (make_con_qid (tyConName tcon)) (map make_tbind tyvars) (map make_cdef (tyConDataCons tcon)) - where repclause | isRecursiveTyCon tcon = Nothing - | otherwise = Just (make_ty rep) - where (_, rep) = newTyConRep tcon + where repclause | isRecursiveTyCon tcon || isOpenTyCon tcon= Nothing + | otherwise = Just (make_ty (repType rhs)) + where (_, rhs) = newTyConRhs tcon tyvars = tyConTyVars tcon collect_tdefs _ tdefs = tdefs @@ -81,7 +84,7 @@ make_cdef dcon = C.Constr dcon_name existentials tys where dcon_name = make_var_id (dataConName dcon) existentials = map make_tbind ex_tyvars - ex_tyvars = drop (tyConArity (dataConTyCon dcon)) (dataConTyVars dcon) + ex_tyvars = dataConExTyVars dcon tys = map make_ty (dataConRepArgTys dcon) make_tbind :: TyVar -> C.Tbind @@ -90,12 +93,14 @@ make_tbind tv = (make_var_id (tyVarName tv), make_kind (tyVarKind tv)) make_vbind :: Var -> C.Vbind make_vbind v = (make_var_id (Var.varName v), make_ty (idType v)) -make_vdef :: CoreBind -> C.Vdefg -make_vdef b = +make_vdef :: NameSet -> CoreBind -> C.Vdefg +make_vdef exports b = case b of NonRec v e -> C.Nonrec (f (v,e)) Rec ves -> C.Rec (map f ves) - where f (v,e) = (make_var_id (Var.varName v), make_ty (idType v),make_exp e) + where + f (v,e) = (local, make_var_id (Var.varName v), make_ty (idType v),make_exp e) + where local = not $ elementOfUniqSet (Var.varName v) exports -- Top level bindings are unqualified now make_exp :: CoreExpr -> C.Exp @@ -103,20 +108,25 @@ make_exp (Var v) = case globalIdDetails v of -- a DataConId represents the Id of a worker, which is a varName. -- sof 4/02 -- DataConId _ -> C.Dcon (make_con_qid (Var.varName v)) - FCallId (CCall (CCallSpec (StaticTarget nm) _ _)) -> C.External (unpackFS nm) (make_ty (idType v)) - FCallId _ -> error "MkExternalCore died: can't handle non-static-C foreign call" + FCallId (CCall (CCallSpec (StaticTarget nm) callconv _)) + -> C.External (unpackFS nm) (showSDoc (ppr callconv)) (make_ty (idType v)) + FCallId (CCall (CCallSpec DynamicTarget callconv _)) + -> C.DynExternal (showSDoc (ppr callconv)) (make_ty (idType v)) + FCallId _ + -> pprPanic "MkExternalCore died: can't handle non-{static,dynamic}-C foreign call" + (ppr v) _ -> C.Var (make_var_qid (Var.varName v)) -make_exp (Lit (l@(MachLabel s _))) = error "MkExternalCore died: can't handle \"foreign label\" declarations" +make_exp (Lit (MachLabel s _)) = C.Label (unpackFS s) make_exp (Lit l) = C.Lit (make_lit l) make_exp (App e (Type t)) = C.Appt (make_exp e) (make_ty t) make_exp (App e1 e2) = C.App (make_exp e1) (make_exp e2) make_exp (Lam v e) | isTyVar v = C.Lam (C.Tb (make_tbind v)) (make_exp e) make_exp (Lam v e) | otherwise = C.Lam (C.Vb (make_vbind v)) (make_exp e) -make_exp (Let b e) = C.Let (make_vdef b) (make_exp e) +make_exp (Cast e co) = C.Cast (make_exp e) (make_ty co) +make_exp (Let b e) = C.Let (make_vdef emptyNameSet b) (make_exp e) -- gaw 2004 make_exp (Case e v ty alts) = C.Case (make_exp e) (make_vbind v) (make_ty ty) (map make_alt alts) -make_exp (Note (SCC cc) e) = C.Note "SCC" (make_exp e) -- temporary -make_exp (Note (Coerce t_to t_from) e) = C.Coerce (make_ty t_to) (make_exp e) +make_exp (Note (SCC _) e) = C.Note "SCC" (make_exp e) -- temporary make_exp (Note (CoreNote s) e) = C.Note s (make_exp e) -- hdaume: core annotations make_exp (Note InlineMe e) = C.Note "InlineMe" (make_exp e) make_exp _ = error "MkExternalCore died: make_exp" @@ -167,16 +177,17 @@ make_ty (TyConApp tc ts) = foldl C.Tapp (C.Tcon (make_con_qid (tyConName tc))) -- Maybe CoreTidy should know whether to expand newtypes or not? make_ty (PredTy p) = make_ty (predTypeRep p) -make_ty (NoteTy _ t) = make_ty t make_kind :: Kind -> C.Kind -make_kind (FunKind k1 k2) = C.Karrow (make_kind k1) (make_kind k2) -make_kind LiftedTypeKind = C.Klifted -make_kind UnboxedTypeKind = C.Kunboxed -make_kind UnliftedTypeKind = C.Kunlifted -make_kind OpenTypeKind = C.Kopen +make_kind (PredTy p) | isEqPred p = C.Keq (make_ty t1) (make_ty t2) + where (t1, t2) = getEqPredTys p +make_kind (FunTy k1 k2) = C.Karrow (make_kind k1) (make_kind k2) +make_kind k + | isLiftedTypeKind k = C.Klifted + | isUnliftedTypeKind k = C.Kunlifted + | isOpenTypeKind k = C.Kopen make_kind _ = error "MkExternalCore died: make_kind" {- Id generation. -} @@ -184,7 +195,7 @@ make_kind _ = error "MkExternalCore died: make_kind" {- Use encoded strings. Also, adjust casing to work around some badly-chosen internal names. -} make_id :: Bool -> Name -> C.Id -make_id is_var nm = (occNameString . nameOccName) nm +make_id _is_var nm = (occNameString . nameOccName) nm {- SIMON thinks this stuff isn't necessary make_id is_var nm = @@ -201,7 +212,7 @@ make_var_id :: Name -> C.Id make_var_id = make_id True make_mid :: Module -> C.Id -make_mid = moduleString +make_mid = showSDoc . pprModule make_qid :: Bool -> Name -> C.Qual C.Id make_qid is_var n = (mname,make_id is_var n)