X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2FParser.java;h=ab0688966495d0ee149c14e02306e2eee7c5ce38;hp=e707eacd3f15916dba84ea30fcc2ae41d354aa09;hb=6b53048f4413f3c618acc3581d0b4f60a236a9bc;hpb=84a4a8204373b996105e69edf91d2f9fae7b4bcb

diff --git a/src/edu/berkeley/sbp/Parser.java b/src/edu/berkeley/sbp/Parser.java
index e707eac..ab06889 100644
--- a/src/edu/berkeley/sbp/Parser.java
+++ b/src/edu/berkeley/sbp/Parser.java
@@ -155,7 +155,7 @@ public class Parser<T extends Token, R> {
                     // FIXME: how does right-nullability interact with follow restrictions?
                     // all right-nullable rules get a reduction [Johnstone 2000]
                     if (p.isRightNullable(cache)) {
-                        Walk.Follow wf = new Walk.Follow(top.fresh(), p.owner(), all_elements, cache);
+                        Walk.Follow wf = new Walk.Follow(top.empty(), p.owner(), all_elements, cache);
                         Reduction red = new Reduction(p);
                         state.reductions.put(wf.walk(p.owner()), red);
                         if (wf.includesEof()) state.eofReductions.add(red, true);
@@ -164,7 +164,7 @@ public class Parser<T extends Token, R> {
                     // if the element following this position is an atom, copy the corresponding
                     // set of rows out of the "master" goto table and into this state's shift table
                     if (p.element() != null && p.element() instanceof Atom)
-                        state.shifts.addAll(state.gotoSetTerminals.subset(((Atom)p.element()).dup()));
+                        state.shifts.addAll(state.gotoSetTerminals.subset(((Atom)p.element())));
                 }
         }
 
@@ -235,7 +235,7 @@ public class Parser<T extends Token, R> {
                     Atom a = (Atom)position.element();
                     HashSet<Position> hp = new HashSet<Position>();
                     reachable(position.next(), hp);
-                    bag0.addAll(a.dup(), /*clo.walk()*/hp);
+                    bag0.addAll(a, /*clo.walk()*/hp);
                 }
 
                 // Step 1b: for each _minimal, contiguous_ set of characters having an identical next-position