X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FhsSyn%2FConvert.lhs;h=9928420045ac283acc49a7a905acbff279daa6b8;hp=31a0bca2c8b3f5c5e5c31ec9ea1721a7dfdf33d6;hb=58521c72cec262496dabf5fffb057d25ab17a0f7;hpb=909691a910d99495baf396fca3ab7e82f2e2eb51 diff --git a/compiler/hsSyn/Convert.lhs b/compiler/hsSyn/Convert.lhs index 31a0bca..9928420 100644 --- a/compiler/hsSyn/Convert.lhs +++ b/compiler/hsSyn/Convert.lhs @@ -83,8 +83,8 @@ instance Monad CvtM where initCvt :: SrcSpan -> CvtM a -> Either Message a initCvt loc (CvtM m) = m loc -force :: a -> CvtM a -force a = a `seq` return a +force :: a -> CvtM () +force a = a `seq` return () failWith :: Message -> CvtM a failWith m = CvtM (\_ -> Left full_msg) @@ -115,31 +115,37 @@ cvtTop (TH.SigD nm typ) ; returnL $ Hs.SigD (TypeSig nm' ty') } cvtTop (TySynD tc tvs rhs) - = do { (_, tc', tvs', _) <- cvt_tycl_hdr [] tc tvs + = do { (_, tc', tvs') <- cvt_tycl_hdr [] tc tvs ; rhs' <- cvtType rhs ; returnL $ TyClD (TySynonym tc' tvs' Nothing rhs') } cvtTop (DataD ctxt tc tvs constrs derivs) - = do { stuff <- cvt_tycl_hdr ctxt tc tvs + = do { (ctxt', tc', tvs') <- cvt_tycl_hdr ctxt tc tvs ; cons' <- mapM cvtConstr constrs ; derivs' <- cvtDerivs derivs - ; returnL $ TyClD (mkTyData DataType stuff Nothing cons' derivs') } + ; returnL $ TyClD (TyData { tcdND = DataType, tcdLName = tc', tcdCtxt = ctxt' + , tcdTyVars = tvs', tcdTyPats = Nothing, tcdKindSig = Nothing + , tcdCons = cons', tcdDerivs = derivs' }) } cvtTop (NewtypeD ctxt tc tvs constr derivs) - = do { stuff <- cvt_tycl_hdr ctxt tc tvs + = do { (ctxt', tc', tvs') <- cvt_tycl_hdr ctxt tc tvs ; con' <- cvtConstr constr ; derivs' <- cvtDerivs derivs - ; returnL $ TyClD (mkTyData NewType stuff Nothing [con'] derivs') } + ; returnL $ TyClD (TyData { tcdND = NewType, tcdLName = tc', tcdCtxt = ctxt' + , tcdTyVars = tvs', tcdTyPats = Nothing, tcdKindSig = Nothing + , tcdCons = [con'], tcdDerivs = derivs'}) } cvtTop (ClassD ctxt cl tvs fds decs) - = do { (cxt', tc', tvs', _) <- cvt_tycl_hdr ctxt cl tvs + = do { (cxt', tc', tvs') <- cvt_tycl_hdr ctxt cl tvs ; fds' <- mapM cvt_fundep fds ; let (ats, bind_sig_decs) = partition isFamilyD decs ; (binds', sigs') <- cvtBindsAndSigs bind_sig_decs ; ats' <- mapM cvtTop ats ; let ats'' = map unTyClD ats' ; returnL $ - TyClD $ mkClassDecl (cxt', tc', tvs') fds' sigs' binds' ats'' [] + TyClD $ ClassDecl { tcdCtxt = cxt', tcdLName = tc', tcdTyVars = tvs' + , tcdFDs = fds', tcdSigs = sigs', tcdMeths = binds' + , tcdATs = ats'', tcdDocs = [] } -- no docs in TH ^^ } where @@ -174,7 +180,7 @@ cvtTop (PragmaD prag) } cvtTop (FamilyD flav tc tvs kind) - = do { (_, tc', tvs', _) <- cvt_tycl_hdr [] tc tvs + = do { (_, tc', tvs') <- cvt_tycl_hdr [] tc tvs ; let kind' = fmap cvtKind kind ; returnL $ TyClD (TyFamily (cvtFamFlavour flav) tc' tvs' kind') } @@ -183,17 +189,21 @@ cvtTop (FamilyD flav tc tvs kind) cvtFamFlavour DataFam = DataFamily cvtTop (DataInstD ctxt tc tys constrs derivs) - = do { stuff <- cvt_tyinst_hdr ctxt tc tys + = do { (ctxt', tc', tvs', typats') <- cvt_tyinst_hdr ctxt tc tys ; cons' <- mapM cvtConstr constrs ; derivs' <- cvtDerivs derivs - ; returnL $ TyClD (mkTyData DataType stuff Nothing cons' derivs') + ; returnL $ TyClD (TyData { tcdND = DataType, tcdLName = tc', tcdCtxt = ctxt' + , tcdTyVars = tvs', tcdTyPats = typats', tcdKindSig = Nothing + , tcdCons = cons', tcdDerivs = derivs' }) } cvtTop (NewtypeInstD ctxt tc tys constr derivs) - = do { stuff <- cvt_tyinst_hdr ctxt tc tys + = do { (ctxt', tc', tvs', typats') <- cvt_tyinst_hdr ctxt tc tys ; con' <- cvtConstr constr ; derivs' <- cvtDerivs derivs - ; returnL $ TyClD (mkTyData NewType stuff Nothing [con'] derivs') + ; returnL $ TyClD (TyData { tcdND = NewType, tcdLName = tc', tcdCtxt = ctxt' + , tcdTyVars = tvs', tcdTyPats = typats', tcdKindSig = Nothing + , tcdCons = [con'], tcdDerivs = derivs' }) } cvtTop (TySynInstD tc tys rhs) @@ -210,13 +220,12 @@ unTyClD _ = panic "Convert.unTyClD: internal error" cvt_tycl_hdr :: TH.Cxt -> TH.Name -> [TH.TyVarBndr] -> CvtM ( LHsContext RdrName , Located RdrName - , [LHsTyVarBndr RdrName] - , Maybe [LHsType RdrName]) + , [LHsTyVarBndr RdrName]) cvt_tycl_hdr cxt tc tvs = do { cxt' <- cvtContext cxt ; tc' <- tconNameL tc ; tvs' <- cvtTvs tvs - ; return (cxt', tc', tvs', Nothing) + ; return (cxt', tc', tvs') } cvt_tyinst_hdr :: TH.Cxt -> TH.Name -> [TH.Type] @@ -259,20 +268,20 @@ cvtConstr (NormalC c strtys) = do { c' <- cNameL c ; cxt' <- returnL [] ; tys' <- mapM cvt_arg strtys - ; returnL $ ConDecl c' Explicit noExistentials cxt' (PrefixCon tys') ResTyH98 Nothing } + ; returnL $ mkSimpleConDecl c' noExistentials cxt' (PrefixCon tys') } cvtConstr (RecC c varstrtys) = do { c' <- cNameL c ; cxt' <- returnL [] ; args' <- mapM cvt_id_arg varstrtys - ; returnL $ ConDecl c' Explicit noExistentials cxt' (RecCon args') ResTyH98 Nothing } + ; returnL $ mkSimpleConDecl c' noExistentials cxt' (RecCon args') } cvtConstr (InfixC st1 c st2) = do { c' <- cNameL c ; cxt' <- returnL [] ; st1' <- cvt_arg st1 ; st2' <- cvt_arg st2 - ; returnL $ ConDecl c' Explicit noExistentials cxt' (InfixCon st1' st2') ResTyH98 Nothing } + ; returnL $ mkSimpleConDecl c' noExistentials cxt' (InfixCon st1' st2') } cvtConstr (ForallC tvs ctxt (ForallC tvs' ctxt' con')) = cvtConstr (ForallC (tvs ++ tvs') (ctxt ++ ctxt') con') @@ -282,8 +291,8 @@ cvtConstr (ForallC tvs ctxt con) ; tvs' <- cvtTvs tvs ; ctxt' <- cvtContext ctxt ; case con' of - ConDecl l _ [] (L _ []) x ResTyH98 _ - -> returnL $ ConDecl l Explicit tvs' ctxt' x ResTyH98 Nothing + ConDecl { con_qvars = [], con_cxt = L _ [] } + -> returnL $ con' { con_qvars = tvs', con_cxt = ctxt' } _ -> panic "ForallC: Can't happen" } cvt_arg :: (TH.Strict, TH.Type) -> CvtM (LHsType RdrName) @@ -512,7 +521,7 @@ cvtl e = wrapL (cvt e) cvt (LamE ps e) = do { ps' <- cvtPats ps; e' <- cvtl e ; return $ HsLam (mkMatchGroup [mkSimpleMatch ps' e']) } cvt (TupE [e]) = cvt e -- Singleton tuples treated like nothing (just parens) - cvt (TupE es) = do { es' <- mapM cvtl es; return $ ExplicitTuple es' Boxed } + cvt (TupE es) = do { es' <- mapM cvtl es; return $ ExplicitTuple (map Present es') Boxed } cvt (CondE x y z) = do { x' <- cvtl x; y' <- cvtl y; z' <- cvtl z ; return $ HsIf x' y' z' } cvt (LetE ds e) = do { ds' <- cvtDecs ds; e' <- cvtl e; return $ HsLet ds' e' } @@ -808,9 +817,10 @@ tconName n = cvtName OccName.tcClsName n cvtName :: OccName.NameSpace -> TH.Name -> CvtM RdrName cvtName ctxt_ns (TH.Name occ flavour) | not (okOcc ctxt_ns occ_str) = failWith (badOcc ctxt_ns occ_str) - | otherwise = force (thRdrName ctxt_ns occ_str flavour) + | otherwise = force rdr_name >> return rdr_name where occ_str = TH.occString occ + rdr_name = thRdrName ctxt_ns occ_str flavour okOcc :: OccName.NameSpace -> String -> Bool okOcc _ [] = False