Document VarSet

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

diff --git a/compiler/basicTypes/VarSet.lhs b/compiler/basicTypes/VarSet.lhs
index d4293ba..f73bf1f 100644 (file)
--- a/compiler/basicTypes/VarSet.lhs
+++ b/compiler/basicTypes/VarSet.lhs
@@ -5,7 +5,10 @@
 
 \begin{code}
 module VarSet (
+        -- * Var, Id and TyVar set types
        VarSet, IdSet, TyVarSet,
+       
+       -- ** Manipulating these sets
        emptyVarSet, unitVarSet, mkVarSet,
        extendVarSet, extendVarSetList, extendVarSet_C,
        elemVarSet, varSetElems, subVarSet,
@@ -17,8 +20,6 @@ module VarSet (
        elemVarSetByKey
     ) where
 
--- XXX This define is a bit of a hack, and should be done more nicely
-#define FAST_STRING_NOT_NEEDED 1
 #include "HsVersions.h"
 
 import Var