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

[ghc-hetmet.git] / compiler / basicTypes / VarEnv.lhs

diff --git a/compiler/basicTypes/VarEnv.lhs b/compiler/basicTypes/VarEnv.lhs
index 2ee5ea5..bf3f96d 100644 (file)
--- a/compiler/basicTypes/VarEnv.lhs
+++ b/compiler/basicTypes/VarEnv.lhs
@@ -27,7 +27,8 @@ module VarEnv (
        -- ** Operations on InScopeSets
        emptyInScopeSet, mkInScopeSet, delInScopeSet,
        extendInScopeSet, extendInScopeSetList, extendInScopeSetSet, 
-       getInScopeVars, lookupInScope, elemInScopeSet, uniqAway, 
+       getInScopeVars, lookupInScope, lookupInScope_Directly, 
+        elemInScopeSet, uniqAway, 
 
        -- * The RnEnv2 type
        RnEnv2, 
@@ -114,6 +115,10 @@ elemInScopeSet v (InScope in_scope _) = v `elemVarEnv` in_scope
 -- the variable's identity (unique) to its full value.
 lookupInScope :: InScopeSet -> Var -> Maybe Var
 lookupInScope (InScope in_scope _) v  = lookupVarEnv in_scope v
+
+lookupInScope_Directly :: InScopeSet -> Unique -> Maybe Var
+lookupInScope_Directly (InScope in_scope _) uniq
+  = lookupVarEnv_Directly in_scope uniq
 \end{code}
 
 \begin{code}