X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2FUnion.java;h=8f3ea2e428b6cbc8f1cc3da0d9cc6b7b7b6bb14c;hp=c1642627c0dac9d744973d40a0c904f7369ceea4;hb=HEAD;hpb=dc9bb3a45ed306e2e35549076842b3e74efecb48

diff --git a/src/edu/berkeley/sbp/Union.java b/src/edu/berkeley/sbp/Union.java
index c164262..8f3ea2e 100644
--- a/src/edu/berkeley/sbp/Union.java
+++ b/src/edu/berkeley/sbp/Union.java
@@ -1,4 +1,4 @@
-// Copyright 2006 all rights reserved; see LICENSE file for BSD-style license
+// Copyright 2006-2007 all rights reserved; see LICENSE file for BSD-style license
 
 package edu.berkeley.sbp;
 import edu.berkeley.sbp.util.*;
@@ -74,12 +74,12 @@ public class Union extends Element implements Iterable<Sequence> {
     }
 
     /** the Forest which results from matching this Union against the empty string at region <tt>region</tt> */
-    Forest epsilonForm(Input.Region region, Cache cache) {
+    Forest epsilonForm(Input.Region region) {
         viewed = true;
         Forest.Many epsilonForm = new Forest.Many();
         for(Sequence s : this)
-            if (cache.possiblyEpsilon(s))
-                epsilonForm.merge(s.epsilonForm(region, cache));
+            if (Element.possiblyEpsilon(s))
+                epsilonForm.merge(s.epsilonForm(region));
         return epsilonForm;
     }