Super-monster patch implementing the new typechecker -- at last

[ghc-hetmet.git] / compiler / coreSyn / PprCore.lhs

diff --git a/compiler/coreSyn/PprCore.lhs b/compiler/coreSyn/PprCore.lhs
index 4d828b6..1908667 100644 (file)
--- a/compiler/coreSyn/PprCore.lhs
+++ b/compiler/coreSyn/PprCore.lhs
@@ -247,39 +247,37 @@ instance OutputableBndr Var where
 
 pprCoreBinder :: BindingSite -> Var -> SDoc
 pprCoreBinder LetBind binder
-  | isTyVar binder = pprKindedTyVarBndr binder
+  | isTyCoVar binder = pprKindedTyVarBndr binder
   | otherwise      = pprTypedBinder binder $$ 
                     ppIdInfo binder (idInfo binder)
 
 -- Lambda bound type variables are preceded by "@"
-pprCoreBinder LambdaBind bndr 
-  | isDeadBinder bndr
+pprCoreBinder bind_site bndr 
   = getPprStyle $ \ sty ->
-    if debugStyle sty then
-       parens (pprTypedBinder bndr)
-    else
-       char '_'
-  | otherwise
-  = parens (pprTypedBinder bndr)
-
--- Case bound things don't get a signature or a herald, unless we have debug on
-pprCoreBinder CaseBind bndr 
-  = getPprStyle $ \ sty ->
-    if debugStyle sty then
-       parens (pprTypedBinder bndr)
-    else
-       if isDeadBinder bndr then char '_'
-       else pprUntypedBinder bndr
+    pprTypedLCBinder bind_site (debugStyle sty) bndr
 
 pprUntypedBinder :: Var -> SDoc
 pprUntypedBinder binder
-  | isTyVar binder = ptext (sLit "@") <+> ppr binder   -- NB: don't print kind
+  | isTyCoVar binder = ptext (sLit "@") <+> ppr binder -- NB: don't print kind
   | otherwise      = pprIdBndr binder
 
+pprTypedLCBinder :: BindingSite -> Bool -> Var -> SDoc
+-- For lambda and case binders, show the unfolding info (usually none)
+pprTypedLCBinder bind_site debug_on var
+  | not debug_on && isDeadBinder var    = char '_'
+  | not debug_on, CaseBind <- bind_site = pprUntypedBinder var  -- No parens, no kind info
+  | isTyCoVar var                         = parens (pprKindedTyVarBndr var)
+  | otherwise = parens (hang (pprIdBndr var) 
+                           2 (vcat [ dcolon <+> pprType (idType var), pp_unf]))
+              where
+               unf_info = unfoldingInfo (idInfo var)
+                pp_unf | hasSomeUnfolding unf_info = ptext (sLit "Unf=") <> ppr unf_info
+                       | otherwise                 = empty
+
 pprTypedBinder :: Var -> SDoc
 -- Print binder with a type or kind signature (not paren'd)
 pprTypedBinder binder
-  | isTyVar binder  = pprKindedTyVarBndr binder
+  | isTyCoVar binder  = pprKindedTyVarBndr binder
   | otherwise      = hang (pprIdBndr binder) 2 (dcolon <+> pprType (idType binder))
 
 pprKindedTyVarBndr :: TyVar -> SDoc
@@ -371,9 +369,9 @@ showAttributes stuff
 \begin{code}
 instance Outputable UnfoldingGuidance where
     ppr UnfNever  = ptext (sLit "NEVER")
-    ppr (UnfWhen sat_ok boring_ok)
+    ppr (UnfWhen unsat_ok boring_ok)
       = ptext (sLit "ALWAYS_IF") <> 
-        parens (ptext (sLit "sat_ok=") <> ppr sat_ok <> comma <>
+        parens (ptext (sLit "unsat_ok=") <> ppr unsat_ok <> comma <>
                 ptext (sLit "boring_ok=") <> ppr boring_ok)
     ppr (UnfIfGoodArgs { ug_args = cs, ug_size = size, ug_res = discount })
       = hsep [ ptext (sLit "IF_ARGS"), 
@@ -388,10 +386,11 @@ instance Outputable UnfoldingSource where
   ppr InlineRhs         = ptext (sLit "<vanilla>")
 
 instance Outputable Unfolding where
-  ppr NoUnfolding             = ptext (sLit "No unfolding")
-  ppr (OtherCon cs)           = ptext (sLit "OtherCon") <+> ppr cs
-  ppr (DFunUnfolding con ops) = ptext (sLit "DFun") <+> ppr con
-                                 <+> brackets (pprWithCommas pprParendExpr ops)
+  ppr NoUnfolding               = ptext (sLit "No unfolding")
+  ppr (OtherCon cs)             = ptext (sLit "OtherCon") <+> ppr cs
+  ppr (DFunUnfolding ar con ops) = ptext (sLit "DFun") <> parens (ptext (sLit "arity=") <> int ar)  
+                                   <+> ppr con
+                                   <+> brackets (pprWithCommas pprParendExpr ops)
   ppr (CoreUnfolding { uf_src = src
                      , uf_tmpl=rhs, uf_is_top=top, uf_is_value=hnf
                      , uf_is_conlike=conlike, uf_is_cheap=cheap