import HsSyn
import HsCore
-import Class ( FunDep )
+import Class ( FunDep, DefMeth(..) )
import TysWiredIn ( tupleTyCon, listTyCon, charTyCon )
import Name ( Name, getName, isTyVarName )
import NameSet
import BasicTypes ( Boxity )
-import Maybes ( orElse )
import Outputable
\end{code}
type RenamedHsExpr = HsExpr Name RenamedPat
type RenamedHsModule = HsModule Name RenamedPat
type RenamedInstDecl = InstDecl Name RenamedPat
+type RenamedMatchContext = HsMatchContext Name
type RenamedMatch = Match Name RenamedPat
type RenamedMonoBinds = MonoBinds Name RenamedPat
type RenamedPat = InPat Name
type RenamedStmt = Stmt Name RenamedPat
type RenamedFixitySig = FixitySig Name
type RenamedDeprecation = DeprecDecl Name
-type RenamedHsOverLit = HsOverLit Name
\end{code}
%************************************************************************
-- You don't import or export implicit parameters,
-- so don't mention the IP names
-extractHsPredTyNames (HsPClass cls tys)
+extractHsPredTyNames (HsClassP cls tys)
= unitNameSet cls `unionNameSets` extractHsTyNames_s tys
-extractHsPredTyNames (HsPIParam n ty)
+extractHsPredTyNames (HsIParam n ty)
= extractHsTyNames ty
\end{code}
- for instance decls likewise, plus the pragmas
- for rule decls, we ignore HsRules
+ *** See "THE NAMING STORY" in HsDecls ****
+
\begin{code}
tyClDeclFVs :: RenamedTyClDecl -> NameSet
+tyClDeclFVs (ForeignType {})
+ = emptyFVs
+
tyClDeclFVs (IfaceSig {tcdType = ty, tcdIdInfo = id_infos})
= extractHsTyNames ty `plusFV`
plusFVs (map hsIdInfoFVs id_infos)
tyClDeclFVs (TyData {tcdCtxt = context, tcdTyVars = tyvars, tcdCons = condecls, tcdDerivs = derivings})
= delFVs (map hsTyVarName tyvars) $
extractHsCtxtTyNames context `plusFV`
- plusFVs (map conDeclFVs condecls) `plusFV`
- mkNameSet (derivings `orElse` [])
+ plusFVs (map conDeclFVs condecls)
tyClDeclFVs (TySynonym {tcdTyVars = tyvars, tcdSynRhs = ty})
= delFVs (map hsTyVarName tyvars) (extractHsTyNames ty)
-tyClDeclFVs (ClassDecl {tcdCtxt = context, tcdTyVars = tyvars, tcdFDs = fds, tcdSigs = sigs})
+tyClDeclFVs (ClassDecl {tcdCtxt = context, tcdTyVars = tyvars, tcdFDs = fds,
+ tcdSigs = sigs, tcdMeths = maybe_meths})
= delFVs (map hsTyVarName tyvars) $
extractHsCtxtTyNames context `plusFV`
plusFVs (map extractFunDepNames fds) `plusFV`
- hsSigsFVs sigs
+ hsSigsFVs sigs `plusFV`
+ dm_fvs
+ where
+ dm_fvs = case maybe_meths of
+ Nothing -> mkFVs [v | ClassOpSig _ (DefMeth v) _ _ <- sigs]
+ -- No method bindings, so this class decl comes from an interface file,
+ -- So we want to treat the default-method names as free (they should
+ -- be defined somewhere else). [In source code this is not so; the class
+ -- decl will bind whatever default-methods are necessary.]
+ Just _ -> emptyFVs -- Source code, so the default methods
+ -- are *bound* not *free*
----------------
hsSigsFVs sigs = plusFVs (map hsSigFVs sigs)
----------------
hsIdInfoFVs (HsUnfold _ unf) = ufExprFVs unf
-hsIdInfoFVs (HsWorker n) = unitFV n
+hsIdInfoFVs (HsWorker n a) = unitFV n
hsIdInfoFVs other = emptyFVs
----------------
ufExprFVs (UfVar n) = unitFV n
ufExprFVs (UfLit l) = emptyFVs
ufExprFVs (UfLitLit l ty) = extractHsTyNames ty
-ufExprFVs (UfCCall cc ty) = extractHsTyNames ty
+ufExprFVs (UfFCall cc ty) = extractHsTyNames ty
ufExprFVs (UfType ty) = extractHsTyNames ty
ufExprFVs (UfTuple tc es) = hsTupConFVs tc `plusFV` plusFVs (map ufExprFVs es)
ufExprFVs (UfLam v e) = ufBndrFVs v (ufExprFVs e)