Closure inspection in GHCi

[ghc-hetmet.git] / compiler / types / Type.lhs

diff --git a/compiler/types/Type.lhs b/compiler/types/Type.lhs
index de0215e..480357e 100644 (file)
--- a/compiler/types/Type.lhs
+++ b/compiler/types/Type.lhs
@@ -48,7 +48,7 @@ module Type (
        splitTyConApp_maybe, splitTyConApp, 
         splitNewTyConApp_maybe, splitNewTyConApp,
 
-       repType, typePrimRep, coreView, tcView, kindView,
+       repType, repType', typePrimRep, coreView, tcView, kindView,
 
        mkForAllTy, mkForAllTys, splitForAllTy_maybe, splitForAllTys, 
        applyTy, applyTys, isForAllTy, dropForAlls,
@@ -457,6 +457,16 @@ repType (TyConApp tc tys)
                           repType (new_type_rep tc tys)
 repType ty = ty
 
+-- repType' aims to be a more thorough version of repType
+-- For now it simply looks through the TyConApp args too
+repType' ty -- | pprTrace "repType'" (ppr ty $$ ppr (go1 ty)) False = undefined
+            | otherwise = go1 ty 
+ where 
+        go1 = go . repType
+        go (TyConApp tc tys) = mkTyConApp tc (map repType' tys)
+        go ty = ty
+
+
 -- new_type_rep doesn't ask any questions: 
 -- it just expands newtype, whether recursive or not
 new_type_rep new_tycon tys = ASSERT( tys `lengthIs` tyConArity new_tycon )