X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Frename%2FRnHsSyn.lhs;h=496a518923ff314e7acf458d597eb1d1867246c2;hb=0d8269cc016f7063365a9d335c6108703d3d1286;hp=596ed5fa4ae4e4ea62067f7f77e36a59459bf8b4;hpb=ae45ff0e9831a0dc862a5d68d03e355d7e323c62;p=ghc-hetmet.git diff --git a/ghc/compiler/rename/RnHsSyn.lhs b/ghc/compiler/rename/RnHsSyn.lhs index 596ed5f..496a518 100644 --- a/ghc/compiler/rename/RnHsSyn.lhs +++ b/ghc/compiler/rename/RnHsSyn.lhs @@ -1,194 +1,99 @@ % -% (c) The AQUA Project, Glasgow University, 1996 +% (c) The AQUA Project, Glasgow University, 1996-1998 % \section[RnHsSyn]{Specialisations of the @HsSyn@ syntax for the renamer} \begin{code} -#include "HsVersions.h" - module RnHsSyn where -IMP_Ubiq() +#include "HsVersions.h" import HsSyn - -import Id ( isDataCon, GenId, Id(..) ) -import Name ( isLocalName, nameUnique, Name, RdrName(..){-ToDo: rm ..-}, - mkLocalName{-ToDo:rm-} - ) -import Outputable ( Outputable(..){-instance * []-} ) -import PprStyle ( PprStyle(..) ) -import PprType ( GenType, GenTyVar, TyCon ) -import Pretty -import TyCon ( TyCon ) -import TyVar ( GenTyVar ) -import Unique ( mkAlphaTyVarUnique, Unique ) -import Util ( panic, pprPanic, pprTrace{-ToDo:rm-} ) +import HsPragmas ( InstancePragmas, GenPragmas, DataPragmas, ClassPragmas, ClassOpPragmas ) + +import TysWiredIn ( tupleTyCon, unboxedTupleTyCon, + listTyCon, charTyCon ) +import Name ( Name, getName ) +import NameSet +import Util +import Outputable \end{code} -\begin{code} -data RnName - = WiredInId Id - | WiredInTyCon TyCon - | RnName Name -- functions/binders/tyvars - | RnSyn Name -- type synonym - | RnData Name [Name] [Name] -- data type (with constrs and fields) - | RnConstr Name Name -- constructor (with data type) - | RnField Name Name -- field (with data type) - | RnClass Name [Name] -- class (with class ops) - | RnClassOp Name Name -- class op (with class) - | RnImplicit Name -- implicitly imported - | RnImplicitTyCon Name -- implicitly imported - | RnImplicitClass Name -- implicitly imported - | RnUnbound RdrName -- place holder - -mkRnName = RnName -mkRnImplicit = RnImplicit -mkRnImplicitTyCon = RnImplicitTyCon -mkRnImplicitClass = RnImplicitClass -mkRnUnbound = RnUnbound - -isRnWired (WiredInId _) = True -isRnWired (WiredInTyCon _) = True -isRnWired _ = False - -isRnLocal (RnName n) = isLocalName n -isRnLocal _ = False - -isRnTyCon (WiredInTyCon _) = True -isRnTyCon (RnSyn _) = True -isRnTyCon (RnData _ _ _) = True -isRnTyCon (RnImplicitTyCon _) = True -isRnTyCon _ = False - -isRnClass (RnClass _ _) = True -isRnClass (RnImplicitClass _) = True -isRnClass _ = False - --- a common need: isRnTyCon || isRnClass: -isRnTyConOrClass (WiredInTyCon _) = True -isRnTyConOrClass (RnSyn _) = True -isRnTyConOrClass (RnData _ _ _) = True -isRnTyConOrClass (RnImplicitTyCon _) = True -isRnTyConOrClass (RnClass _ _) = True -isRnTyConOrClass (RnImplicitClass _) = True -isRnTyConOrClass _ = False - -isRnConstr (RnConstr _ _) = True -isRnConstr (WiredInId id) = isDataCon id -isRnConstr _ = False - -isRnField (RnField _ _) = True -isRnField _ = False - -isRnClassOp cls (RnClassOp _ op_cls) = eqUniqsNamed cls op_cls -isRnClassOp cls n = pprTrace "isRnClassOp:" (ppr PprShowAll n) $ True -- let it past anyway -isRnImplicit (RnImplicit _) = True -isRnImplicit (RnImplicitTyCon _) = True -isRnImplicit (RnImplicitClass _) = True -isRnImplicit _ = False - -isRnUnbound (RnUnbound _) = True -isRnUnbound _ = False - --- Very general NamedThing comparison, used when comparing --- Uniquable things with different types - -eqUniqsNamed n1 n2 = uniqueOf n1 == uniqueOf n2 -cmpUniqsNamed n1 n2 = uniqueOf n1 `cmp` uniqueOf n2 - -instance Eq RnName where - a == b = eqUniqsNamed a b - -instance Ord3 RnName where - a `cmp` b = cmpUniqsNamed a b - -instance Uniquable RnName where - uniqueOf = nameUnique . getName - -instance NamedThing RnName where - getName (WiredInId id) = getName id - getName (WiredInTyCon tc) = getName tc - getName (RnName n) = n - getName (RnSyn n) = n - getName (RnData n _ _) = n - getName (RnConstr n _) = n - getName (RnField n _) = n - getName (RnClass n _) = n - getName (RnClassOp n _) = n - getName (RnImplicit n) = n - getName (RnImplicitTyCon n) = n - getName (RnImplicitClass n) = n - getName (RnUnbound occ) = pprTrace "getRnName:RnUnbound: " (ppr PprDebug occ) - (case occ of - Unqual n -> mkLocalName bottom n False bottom2 - Qual m n -> mkLocalName bottom n False bottom2) - where bottom = mkAlphaTyVarUnique 0 -- anything; just something that will print - bottom2 = panic "getRnName: srcloc" - -instance Outputable RnName where -#ifdef DEBUG - ppr sty@PprShowAll (RnData n cs fs) = ppBesides [ppr sty n, ppStr "{-", ppr sty cs, ppr sty fs, ppStr "-}"] - ppr sty@PprShowAll (RnConstr n d) = ppBesides [ppr sty n, ppStr "{-", ppr sty d, ppStr "-}"] - ppr sty@PprShowAll (RnField n d) = ppBesides [ppr sty n, ppStr "{-", ppr sty d, ppStr "-}"] - ppr sty@PprShowAll (RnClass n ops) = ppBesides [ppr sty n, ppStr "{-", ppr sty ops, ppStr "-}"] - ppr sty@PprShowAll (RnClassOp n c) = ppBesides [ppr sty n, ppStr "{-", ppr sty c, ppStr "-}"] -#endif - ppr sty (WiredInId id) = ppr sty id - ppr sty (WiredInTyCon tycon)= ppr sty tycon - ppr sty (RnUnbound occ) = ppBeside (ppr sty occ) (ppPStr SLIT("{-UNBOUND-}")) - ppr sty rn_name = ppr sty (getName rn_name) +\begin{code} +type RenamedArithSeqInfo = ArithSeqInfo Name RenamedPat +type RenamedClassOpSig = Sig Name +type RenamedConDecl = ConDecl Name +type RenamedContext = Context Name +type RenamedHsDecl = HsDecl Name RenamedPat +type RenamedRuleDecl = RuleDecl Name RenamedPat +type RenamedTyClDecl = TyClDecl Name RenamedPat +type RenamedSpecDataSig = SpecDataSig Name +type RenamedDefaultDecl = DefaultDecl Name +type RenamedForeignDecl = ForeignDecl Name +type RenamedGRHS = GRHS Name RenamedPat +type RenamedGRHSs = GRHSs Name RenamedPat +type RenamedHsBinds = HsBinds Name RenamedPat +type RenamedHsExpr = HsExpr Name RenamedPat +type RenamedHsModule = HsModule Name RenamedPat +type RenamedInstDecl = InstDecl Name RenamedPat +type RenamedMatch = Match Name RenamedPat +type RenamedMonoBinds = MonoBinds Name RenamedPat +type RenamedPat = InPat Name +type RenamedHsType = HsType Name +type RenamedRecordBinds = HsRecordBinds Name RenamedPat +type RenamedSig = Sig Name +type RenamedStmt = Stmt Name RenamedPat +type RenamedFixitySig = FixitySig Name + +type RenamedClassOpPragmas = ClassOpPragmas Name +type RenamedClassPragmas = ClassPragmas Name +type RenamedDataPragmas = DataPragmas Name +type RenamedGenPragmas = GenPragmas Name +type RenamedInstancePragmas = InstancePragmas Name \end{code} -\begin{code} -type RenamedArithSeqInfo = ArithSeqInfo Fake Fake RnName RenamedPat -type RenamedBind = Bind Fake Fake RnName RenamedPat -type RenamedClassDecl = ClassDecl Fake Fake RnName RenamedPat -type RenamedClassOpSig = Sig RnName -type RenamedConDecl = ConDecl RnName -type RenamedContext = Context RnName -type RenamedSpecDataSig = SpecDataSig RnName -type RenamedDefaultDecl = DefaultDecl RnName -type RenamedFixityDecl = FixityDecl RnName -type RenamedGRHS = GRHS Fake Fake RnName RenamedPat -type RenamedGRHSsAndBinds = GRHSsAndBinds Fake Fake RnName RenamedPat -type RenamedHsBinds = HsBinds Fake Fake RnName RenamedPat -type RenamedHsExpr = HsExpr Fake Fake RnName RenamedPat -type RenamedHsModule = HsModule Fake Fake RnName RenamedPat -type RenamedInstDecl = InstDecl Fake Fake RnName RenamedPat -type RenamedMatch = Match Fake Fake RnName RenamedPat -type RenamedMonoBinds = MonoBinds Fake Fake RnName RenamedPat -type RenamedMonoType = MonoType RnName -type RenamedPat = InPat RnName -type RenamedPolyType = PolyType RnName -type RenamedRecordBinds = HsRecordBinds Fake Fake RnName RenamedPat -type RenamedQual = Qualifier Fake Fake RnName RenamedPat -type RenamedSig = Sig RnName -type RenamedSpecInstSig = SpecInstSig RnName -type RenamedStmt = Stmt Fake Fake RnName RenamedPat -type RenamedTyDecl = TyDecl RnName +%************************************************************************ +%* * +\subsection{Free variables} +%* * +%************************************************************************ -type RenamedClassOpPragmas = ClassOpPragmas RnName -type RenamedClassPragmas = ClassPragmas RnName -type RenamedDataPragmas = DataPragmas RnName -type RenamedGenPragmas = GenPragmas RnName -type RenamedInstancePragmas = InstancePragmas RnName -\end{code} +These free-variable finders returns tycons and classes too. \begin{code} -collectQualBinders :: [RenamedQual] -> [RnName] +charTyCon_name, listTyCon_name :: Name +charTyCon_name = getName charTyCon +listTyCon_name = getName listTyCon -collectQualBinders quals - = concat (map collect quals) - where - collect (GeneratorQual pat _) = collectPatBinders pat - collect (FilterQual expr) = [] - collect (LetQual binds) = collectTopLevelBinders binds +tupleTyCon_name :: Bool -> Int -> Name +tupleTyCon_name True n = getName (tupleTyCon n) +tupleTyCon_name False n = getName (unboxedTupleTyCon n) -fixDeclName :: FixityDecl name -> name -fixDeclName (InfixL name i) = name -fixDeclName (InfixR name i) = name -fixDeclName (InfixN name i) = name +extractHsTyNames :: RenamedHsType -> NameSet +extractHsTyNames ty + = get ty + where + get (MonoTyApp ty1 ty2) = get ty1 `unionNameSets` get ty2 + get (MonoListTy ty) = unitNameSet listTyCon_name + `unionNameSets` get ty + get (MonoTupleTy tys boxed) = unitNameSet (tupleTyCon_name boxed (length tys)) + `unionNameSets` extractHsTyNames_s tys + get (MonoFunTy ty1 ty2) = get ty1 `unionNameSets` get ty2 + get (MonoDictTy cls tys) = unitNameSet cls `unionNameSets` extractHsTyNames_s tys + get (MonoTyVar tv) = unitNameSet tv + get (HsForAllTy (Just tvs) + ctxt ty) = (extractHsCtxtTyNames ctxt `unionNameSets` get ty) + `minusNameSet` + mkNameSet (map getTyVarName tvs) + get ty@(HsForAllTy Nothing _ _) = pprPanic "extractHsTyNames" (ppr ty) + +extractHsTyNames_s :: [RenamedHsType] -> NameSet +extractHsTyNames_s tys = foldr (unionNameSets . extractHsTyNames) emptyNameSet tys + +extractHsCtxtTyNames :: RenamedContext -> NameSet +extractHsCtxtTyNames ctxt = foldr (unionNameSets . get) emptyNameSet ctxt + where + get (cls, tys) = unitNameSet cls `unionNameSets` extractHsTyNames_s tys \end{code}