lookupLocatedInstDeclBndr,
lookupSyntaxName, lookupSyntaxTable, lookupImportedName,
lookupGreRn, lookupGreRn_maybe,
+ getLookupOccRn,
newLocalsRn, newIPNameRn,
bindLocalNames, bindLocalNamesFV,
-- The Haskell98 report does not stipulate this, but it will!
-- So we must treat the 'f' in the signature in the same way
-- as the binding occurrence of 'f', using lookupBndrRn
+--
+-- However, consider this case:
+-- import M( f )
+-- f :: Int -> Int
+-- g x = x
+-- We don't want to say 'f' is out of scope; instead, we want to
+-- return the imported 'f', so that later on the reanamer will
+-- correctly report "misplaced type sig".
lookupLocatedSigOccRn :: Located RdrName -> RnM (Located Name)
-lookupLocatedSigOccRn = lookupLocatedBndrRn
+lookupLocatedSigOccRn = wrapLocM $ \ rdr_name -> do
+ { local_env <- getLocalRdrEnv
+ ; case lookupLocalRdrEnv local_env rdr_name of {
+ Just n -> return n ;
+ Nothing -> do
+ { mb_gre <- lookupGreLocalRn rdr_name
+ ; case mb_gre of
+ Just gre -> return (gre_name gre)
+ Nothing -> lookupGlobalOccRn rdr_name
+ }}}
-- lookupInstDeclBndr is used for the binders in an
-- instance declaration. Here we use the class name to
-- Occurrences
--------------------------------------------------
+getLookupOccRn :: RnM (Name -> Maybe Name)
+getLookupOccRn
+ = getLocalRdrEnv `thenM` \ local_env ->
+ return (lookupLocalRdrEnv local_env . mkRdrUnqual . nameOccName)
+
lookupLocatedOccRn :: Located RdrName -> RnM (Located Name)
lookupLocatedOccRn = wrapLocM lookupOccRn
* "do" notation
We store the relevant Name in the HsSyn tree, in
- * HsIntegral/HsFractional
+ * HsIntegral/HsFractional/HsIsString
* NegApp
* NPlusKPat
* HsDo