Document NameEnv

diff --git a/compiler/basicTypes/NameEnv.lhs b/compiler/basicTypes/NameEnv.lhs
index 0f2023b..4b8085d 100644 (file)
--- a/compiler/basicTypes/NameEnv.lhs
+++ b/compiler/basicTypes/NameEnv.lhs
@@ -6,7 +6,11 @@
 
 \begin{code}
 module NameEnv (
-       NameEnv, mkNameEnv,
+       -- * Var, Id and TyVar environments (maps) 
+       NameEnv, 
+       
+       -- ** Manipulating these environments
+       mkNameEnv,
        emptyNameEnv, unitNameEnv, nameEnvElts, nameEnvUniqueElts,
        extendNameEnv_C, extendNameEnv_Acc, extendNameEnv,
         extendNameEnvList, extendNameEnvList_C,