X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2FSequence.java;h=d25260450ef90d7ae0ad6466d69edc00026ff283;hp=a5149f2d094ef3dee1b4712f7bc67713eeb9650c;hb=0516ea34996c86664928ef948013b749876b87ec;hpb=87f214f3da9f43c3ab93923313845c372f9a96be

diff --git a/src/edu/berkeley/sbp/Sequence.java b/src/edu/berkeley/sbp/Sequence.java
index a5149f2..d252604 100644
--- a/src/edu/berkeley/sbp/Sequence.java
+++ b/src/edu/berkeley/sbp/Sequence.java
@@ -38,8 +38,7 @@ public abstract class Sequence extends Element implements Iterable<Element> {
     public Topology noFollow() { return null; }
 
     Topology toAtom() {
-        if (elements.length>1) throw new RuntimeException("cannot invoke toAtom() on a Sequence with " + elements.length + " elements: " + this);
-        if (elements.length==0) return null;
+        if (elements.length!=1) throw new RuntimeException("cannot invoke toAtom() on a Sequence with " + elements.length + " elements: " + this);
         return elements[0].toAtom();
     }