Use pprSourceTyCon; delete unused tyConOrigHead

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

diff --git a/compiler/types/Type.lhs b/compiler/types/Type.lhs
index 7d42d8c..25c5968 100644 (file)
--- a/compiler/types/Type.lhs
+++ b/compiler/types/Type.lhs
@@ -54,8 +54,7 @@ module Type (
        applyTy, applyTys, isForAllTy, dropForAlls,
 
        -- Source types
-       predTypeRep, mkPredTy, mkPredTys,
-       tyConOrigHead, pprSourceTyCon,
+       predTypeRep, mkPredTy, mkPredTys, pprSourceTyCon,
 
        -- Newtypes
        splitRecNewType_maybe, newTyConInstRhs,
@@ -604,13 +603,6 @@ predTypeRep (ClassP clas tys) = mkTyConApp (classTyCon clas) tys
        -- look through that too if necessary
 predTypeRep (EqPred ty1 ty2) = pprPanic "predTypeRep" (ppr (EqPred ty1 ty2))
 
--- The original head is the tycon and its variables for a vanilla tycon and it
--- is the family tycon and its type indexes for a family instance.
-tyConOrigHead :: TyCon -> (TyCon, [Type])
-tyConOrigHead tycon = case tyConFamInst_maybe tycon of
-                       Nothing      -> (tycon, mkTyVarTys (tyConTyVars tycon))
-                       Just famInst -> famInst
-
 -- Pretty prints a tycon, using the family instance in case of a
 -- representation tycon.  For example
 --     e.g.  data T [a] = ...