2 % (c) The AQUA Project, Glasgow University, 1996
4 \section[RnHsSyn]{Specialisations of the @HsSyn@ syntax for the renamer}
7 #include "HsVersions.h"
15 import Id ( GenId, Id(..) )
16 import Name ( isLocalName, nameUnique, Name, RdrName(..){-ToDo: rm ..-},
17 mkLocalName{-ToDo:rm-}
19 import Outputable ( Outputable(..){-instance * []-} )
20 import PprStyle ( PprStyle(..) )
21 import PprType ( GenType, GenTyVar, TyCon )
23 import TyCon ( TyCon )
24 import TyVar ( GenTyVar )
25 import Unique ( Unique )
26 import Util ( panic, pprPanic, pprTrace{-ToDo:rm-} )
33 | RnName Name -- funtions/binders/tyvars
34 | RnSyn Name -- type synonym
35 | RnData Name [Name] -- data type (with constrs)
36 | RnConstr Name Name -- constructor (with data type)
37 | RnClass Name [Name] -- class (with class ops)
38 | RnClassOp Name Name -- class op (with class)
39 | RnImplicit Name -- implicitly imported
40 | RnImplicitTyCon Name -- implicitly imported
41 | RnImplicitClass Name -- implicitly imported
42 | RnUnbound RdrName -- place holder
45 mkRnImplicit = RnImplicit
46 mkRnImplicitTyCon = RnImplicitTyCon
47 mkRnImplicitClass = RnImplicitClass
48 mkRnUnbound = RnUnbound
50 isRnWired (WiredInId _) = True
51 isRnWired (WiredInTyCon _) = True
54 isRnLocal (RnName n) = isLocalName n
58 isRnTyCon (WiredInTyCon _) = True
59 isRnTyCon (RnSyn _) = True
60 isRnTyCon (RnData _ _) = True
61 isRnTyCon (RnImplicitTyCon _) = True
64 isRnClass (RnClass _ _) = True
65 isRnClass (RnImplicitClass _) = True
68 isRnClassOp cls (RnClassOp _ op_cls) = eqUniqsNamed cls op_cls
69 isRnClassOp cls (RnImplicit _) = True -- ho hummm ...
70 isRnClassOp cls _ = False
72 isRnImplicit (RnImplicit _) = True
73 isRnImplicit (RnImplicitTyCon _) = True
74 isRnImplicit (RnImplicitClass _) = True
75 isRnImplicit _ = False
77 isRnUnbound (RnUnbound _) = True
80 -- Very general NamedThing comparison, used when comparing
81 -- Uniquable things with different types
83 eqUniqsNamed n1 n2 = uniqueOf n1 == uniqueOf n2
84 cmpUniqsNamed n1 n2 = uniqueOf n1 `cmp` uniqueOf n2
86 instance Eq RnName where
87 a == b = eqUniqsNamed a b
89 instance Ord3 RnName where
90 a `cmp` b = cmpUniqsNamed a b
92 instance Uniquable RnName where
93 uniqueOf = nameUnique . getName
95 instance NamedThing RnName where
96 getName (WiredInId id) = getName id
97 getName (WiredInTyCon tc) = getName tc
98 getName (RnName n) = n
100 getName (RnData n _) = n
101 getName (RnConstr n _) = n
102 getName (RnClass n _) = n
103 getName (RnClassOp n _) = n
104 getName (RnImplicit n) = n
105 getName (RnUnbound occ) = pprTrace "getRnName:RnUnbound: " (ppr PprDebug occ)
107 Unqual n -> mkLocalName bottom n bottom2
108 Qual m n -> mkLocalName bottom n bottom2)
109 where bottom = panic "getRnName: unique"
110 bottom2 = panic "getRnName: srcloc"
112 instance Outputable RnName where
114 ppr sty@PprShowAll (RnData n cs) = ppBesides [ppr sty n, ppStr "{-", ppr sty cs, ppStr "-}"]
115 ppr sty@PprShowAll (RnConstr n d) = ppBesides [ppr sty n, ppStr "{-", ppr sty d, ppStr "-}"]
116 ppr sty@PprShowAll (RnClass n ops) = ppBesides [ppr sty n, ppStr "{-", ppr sty ops, ppStr "-}"]
117 ppr sty@PprShowAll (RnClassOp n c) = ppBesides [ppr sty n, ppStr "{-", ppr sty c, ppStr "-}"]
119 ppr sty (WiredInId id) = ppr sty id
120 ppr sty (WiredInTyCon tycon)= ppr sty tycon
121 ppr sty (RnUnbound occ) = ppBeside (ppr sty occ) (ppPStr SLIT("{-UNBOUND-}"))
122 ppr sty rn_name = ppr sty (getName rn_name)
126 type RenamedArithSeqInfo = ArithSeqInfo Fake Fake RnName RenamedPat
127 type RenamedBind = Bind Fake Fake RnName RenamedPat
128 type RenamedClassDecl = ClassDecl Fake Fake RnName RenamedPat
129 type RenamedClassOpSig = Sig RnName
130 type RenamedConDecl = ConDecl RnName
131 type RenamedContext = Context RnName
132 type RenamedSpecDataSig = SpecDataSig RnName
133 type RenamedDefaultDecl = DefaultDecl RnName
134 type RenamedFixityDecl = FixityDecl RnName
135 type RenamedGRHS = GRHS Fake Fake RnName RenamedPat
136 type RenamedGRHSsAndBinds = GRHSsAndBinds Fake Fake RnName RenamedPat
137 type RenamedHsBinds = HsBinds Fake Fake RnName RenamedPat
138 type RenamedHsExpr = HsExpr Fake Fake RnName RenamedPat
139 type RenamedHsModule = HsModule Fake Fake RnName RenamedPat
140 type RenamedInstDecl = InstDecl Fake Fake RnName RenamedPat
141 type RenamedMatch = Match Fake Fake RnName RenamedPat
142 type RenamedMonoBinds = MonoBinds Fake Fake RnName RenamedPat
143 type RenamedMonoType = MonoType RnName
144 type RenamedPat = InPat RnName
145 type RenamedPolyType = PolyType RnName
146 type RenamedRecordBinds = HsRecordBinds Fake Fake RnName RenamedPat
147 type RenamedQual = Qual Fake Fake RnName RenamedPat
148 type RenamedSig = Sig RnName
149 type RenamedSpecInstSig = SpecInstSig RnName
150 type RenamedStmt = Stmt Fake Fake RnName RenamedPat
151 type RenamedTyDecl = TyDecl RnName
153 type RenamedClassOpPragmas = ClassOpPragmas RnName
154 type RenamedClassPragmas = ClassPragmas RnName
155 type RenamedDataPragmas = DataPragmas RnName
156 type RenamedGenPragmas = GenPragmas RnName
157 type RenamedInstancePragmas = InstancePragmas RnName
161 collectQualBinders :: [RenamedQual] -> [RnName]
163 collectQualBinders quals
164 = concat (map collect quals)
166 collect (GeneratorQual pat _) = collectPatBinders pat
167 collect (FilterQual expr) = []
168 collect (LetQual binds) = collectTopLevelBinders binds