[commit: ghc] wip/T8776: pprIfaceContextArr: print a context including the "=>" arrow (2277d0e)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/T8776
Link       : http://ghc.haskell.org/trac/ghc/changeset/2277d0ea9533d5da5b45d7503a792c282bc1b37e/ghc

>---------------------------------------------------------------

commit 2277d0ea9533d5da5b45d7503a792c282bc1b37e
Author: Dr. ERDI Gergo <gergo at erdi.hu>
Date:   Wed Mar 12 20:38:26 2014 +0800

    pprIfaceContextArr: print a context including the "=>" arrow


>---------------------------------------------------------------

2277d0ea9533d5da5b45d7503a792c282bc1b37e
 compiler/iface/IfaceSyn.lhs  |    2 +-
 compiler/iface/IfaceType.lhs |   16 ++++++++--------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/compiler/iface/IfaceSyn.lhs b/compiler/iface/IfaceSyn.lhs
index b582305..3691fca 100644
--- a/compiler/iface/IfaceSyn.lhs
+++ b/compiler/iface/IfaceSyn.lhs
@@ -1152,7 +1152,7 @@ instance Outputable IfaceAT where
 
 pprIfaceDeclHead :: IfaceContext -> OccName -> [IfaceTvBndr] -> SDoc
 pprIfaceDeclHead context thing tyvars
-  = hsep [pprIfaceContext context, parenSymOcc thing (ppr thing),
+  = hsep [pprIfaceContextArr context, parenSymOcc thing (ppr thing),
           pprIfaceTvBndrs tyvars]
 
 pp_condecls :: OccName -> IfaceConDecls -> SDoc
diff --git a/compiler/iface/IfaceType.lhs b/compiler/iface/IfaceType.lhs
index 822e3da..8c1791a 100644
--- a/compiler/iface/IfaceType.lhs
+++ b/compiler/iface/IfaceType.lhs
@@ -22,7 +22,7 @@ module IfaceType (
         toIfaceCoercion,
 
         -- Printing
-        pprIfaceType, pprParendIfaceType, pprIfaceContext,
+        pprIfaceType, pprParendIfaceType, pprIfaceContext, pprIfaceContextArr,
         pprIfaceIdBndr, pprIfaceTvBndr, pprIfaceTvBndrs,
         pprIfaceBndrs,
         tOP_PREC, tYCON_PREC, noParens, maybeParen, pprIfaceForAllPart,
@@ -253,7 +253,7 @@ ppr_ty ctxt_prec ty@(IfaceForAllTy _ _)
 -- generality
 pprIfaceForAllPart :: Outputable a => [IfaceTvBndr] -> [a] -> SDoc -> SDoc
 pprIfaceForAllPart tvs ctxt doc
-  = sep [ppr_tvs, pprIfaceContext ctxt, doc]
+  = sep [ppr_tvs, pprIfaceContextArr ctxt, doc]
   where
     ppr_tvs | null tvs  = empty
             | otherwise = ptext (sLit "forall") <+> pprIfaceTvBndrs tvs <> dot
@@ -386,14 +386,14 @@ instance Binary IfaceTyLit where
          _ -> panic ("get IfaceTyLit " ++ show tag)
 
 -------------------
-pprIfaceContext :: Outputable a => [a] -> SDoc
+pprIfaceContextArr :: Outputable a => [a] -> SDoc
 -- Prints "(C a, D b) =>", including the arrow
-pprIfaceContext []    = empty
-pprIfaceContext theta = ppr_preds theta <+> darrow
+pprIfaceContextArr []    = empty
+pprIfaceContextArr theta = pprIfaceContext theta <+> darrow
 
-ppr_preds :: Outputable a => [a] -> SDoc
-ppr_preds [pred] = ppr pred    -- No parens
-ppr_preds preds  = parens (sep (punctuate comma (map ppr preds)))
+pprIfaceContext :: Outputable a => [a] -> SDoc
+pprIfaceContext [pred] = ppr pred    -- No parens
+pprIfaceContext preds  = parens (sep (punctuate comma (map ppr preds)))
 
 instance Binary IfaceType where
     put_ bh (IfaceForAllTy aa ab) = do