improve performance

[IRC.git] / Robust / src / Analysis / OwnershipAnalysis / TokenTupleSet.java

diff --git a/Robust/src/Analysis/OwnershipAnalysis/TokenTupleSet.java b/Robust/src/Analysis/OwnershipAnalysis/TokenTupleSet.java
index 5b60afea4bc743f696a39661c58f3b8d54589b97..13fa65ead90ae8db8f87f15e7d533bf037ecb12d 100644 (file)
--- a/Robust/src/Analysis/OwnershipAnalysis/TokenTupleSet.java
+++ b/Robust/src/Analysis/OwnershipAnalysis/TokenTupleSet.java
@@ -159,25 +159,17 @@ public class TokenTupleSet extends Canonical {
     return tokenTuples.equals(tts.tokenTuples);
   }
 
+    boolean hashcodecomputed;
+    int ourhashcode;
 
 
-  private boolean oldHashSet = false;
-  private int oldHash    = 0;
   public int hashCode() {
-    int currentHash = tokenTuples.hashCode();
-
-    if( oldHashSet == false ) {
-      oldHash = currentHash;
-      oldHashSet = true;
-    } else {
-      if( oldHash != currentHash ) {
-       System.out.println("IF YOU SEE THIS A CANONICAL TokenTupleSet CHANGED");
-       Integer x = null;
-       x.toString();
+      if (hashcodecomputed)
+         return ourhashcode;
+      else {
+         ourhashcode=tokenTuples.hashCode();
+         return ourhashcode;
       }
-    }
-
-    return currentHash;
   }