Commit c2def830 authored by batterseapower's avatar batterseapower
Browse files

Follow Digraph changes in RnBinds and small refactoring

parent 04230c64
......@@ -37,7 +37,7 @@ import RdrName ( RdrName, rdrNameOcc )
import SrcLoc
import ListSetOps ( findDupsEq )
import BasicTypes ( RecFlag(..) )
import Digraph ( SCC(..), stronglyConnComp )
import Digraph ( SCC(..), stronglyConnCompFromEdgedVertices )
import Bag
import Outputable
import FastString
......@@ -538,7 +538,7 @@ depAnalBinds :: Bag (LHsBind Name, [Name], Uses)
depAnalBinds binds_w_dus
= (map get_binds sccs, map get_du sccs)
where
sccs = stronglyConnComp edges
sccs = stronglyConnCompFromEdgedVertices edges
keyd_nodes = bagToList binds_w_dus `zip` [0::Int ..]
......@@ -705,7 +705,7 @@ renameSigs mb_names ok_sig sigs
renameSig :: Maybe NameSet -> Sig RdrName -> RnM (Sig Name)
-- FixitySig is renamed elsewhere.
renameSig mb_names sig@(TypeSig v ty)
= do { new_v <- lookupSigOccRn mb_names sig v
= do { new_v <- lookupSigLocOccRn mb_names sig v
; new_ty <- rnHsSigType (quotes (ppr v)) ty
; return (TypeSig new_v new_ty) }
......@@ -714,16 +714,16 @@ renameSig _ (SpecInstSig ty)
; return (SpecInstSig new_ty) }
renameSig mb_names sig@(SpecSig v ty inl)
= do { new_v <- lookupSigOccRn mb_names sig v
= do { new_v <- lookupSigLocOccRn mb_names sig v
; new_ty <- rnHsSigType (quotes (ppr v)) ty
; return (SpecSig new_v new_ty inl) }
renameSig mb_names sig@(InlineSig v s)
= do { new_v <- lookupSigOccRn mb_names sig v
= do { new_v <- lookupSigLocOccRn mb_names sig v
; return (InlineSig new_v s) }
renameSig mb_names sig@(FixSig (FixitySig v f))
= do { new_v <- lookupSigOccRn mb_names sig v
= do { new_v <- lookupSigLocOccRn mb_names sig v
; return (FixSig (FixitySig new_v f)) }
-- lookupSigOccRn is used for type signatures and pragmas
......@@ -745,13 +745,16 @@ renameSig mb_names sig@(FixSig (FixitySig v f))
-- return the imported 'f', so that later on the reanamer will
-- correctly report "misplaced type sig".
lookupSigOccRn :: Maybe NameSet -> Sig RdrName -> Located RdrName -> RnM (Located Name)
lookupSigOccRn mb_names sig (L loc v)
lookupSigLocOccRn :: Maybe NameSet -> Sig RdrName -> Located RdrName -> RnM (Located Name)
lookupSigLocOccRn mb_names sig = wrapLocM (lookupSigOccRn mb_names sig)
lookupSigOccRn :: Maybe NameSet -> Sig RdrName -> RdrName -> RnM Name
lookupSigOccRn mb_names sig v
= do { mb_n <- lookupBndrRn_maybe v
; case mb_n of {
Just n -> case mb_names of {
Nothing -> return (L loc n) ;
Just ns | n `elemNameSet` ns -> return (L loc n)
Nothing -> return n ;
Just ns | n `elemNameSet` ns -> return n
| otherwise -> bale_out_with local_msg } ;
Nothing -> do
......@@ -766,7 +769,7 @@ lookupSigOccRn mb_names sig (L loc v)
<+> ptext (sLit "for") <+> quotes (ppr v)
, nest 2 $ ptext (sLit "lacks an accompanying binding")]
$$ nest 2 msg)
; return (L loc (mkUnboundName v)) }
; return (mkUnboundName v) }
local_msg = parens $ ptext (sLit "The") <+> hsSigDoc sig <+> ptext (sLit "must be given where")
<+> quotes (ppr v) <+> ptext (sLit "is declared")
......
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