X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2FWalk.java;h=b7f147d24bec667a4117b5fa1cb684fc7719ba53;hp=4f133a4d47865640ef8e73da7597b531631129a7;hb=6af4164b09ae19edb1154f5d80180eb4907fe143;hpb=6b53048f4413f3c618acc3581d0b4f60a236a9bc

diff --git a/src/edu/berkeley/sbp/Walk.java b/src/edu/berkeley/sbp/Walk.java
index 4f133a4..b7f147d 100644
--- a/src/edu/berkeley/sbp/Walk.java
+++ b/src/edu/berkeley/sbp/Walk.java
@@ -97,20 +97,6 @@ abstract class Walk<T> {
         }
     }
 
-    class Last<Tok extends Token> extends WalkTokenSet<Tok> {
-        public Last(Topology<Tok> cs, Walk.Cache cache) { super(cs, cache); }
-        public Topology<Tok> sequence(Sequence seq) { sequence(seq.firstp()); return cs; }
-        private Topology<Tok> sequence(Position p) {
-            if (p==null) return null;
-            Topology<Tok> ret = sequence(p.next());
-            if (ret!=null) return ret;
-            if (p.isLast()) return null;
-            if (p.element().possiblyEpsilon(c)) return null;
-            if (p.element()==null) return null;
-            return walk(p.element());
-        }
-    }
-
     static class Follow<Tok extends Token> extends WalkTokenSet<Tok> {
         private final Element me;
         private final HashSet<Element> all;
@@ -138,10 +124,10 @@ abstract class Walk<T> {
             eof = false;
             cs = cso.empty();
 
-            if (e instanceof Parser.Table.Top) eof = true;
+            if (e instanceof Parser.Top) eof = true;
             for(Element x : all) {
                 boolean matched = false;
-                if (x instanceof Parser.Table.Top) walk(x); // because this symbol might not appear in any other Sequence
+                if (x instanceof Parser.Top) walk(x); // because this symbol might not appear in any other Sequence
                 if (!(x instanceof Sequence)) continue;
                 Sequence a = (Sequence)x;
                 Position mp = null;