From bd89b8e00a7beb5c7ef0784a50019de104ab364f Mon Sep 17 00:00:00 2001
From: Joel Dice <git@seibutsu.mailsnare.net>
Date: Thu, 18 Dec 2008 20:23:08 -0700
Subject: [PATCH] check for null array in HashMapIterator::find

---
 src/util.h | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/util.h b/src/util.h
index 9dcdd5730e..bf895f6bae 100644
--- a/src/util.h
+++ b/src/util.h
@@ -107,11 +107,13 @@ class HashMapIterator: public Thread::Protector {
 
   void find() {
     object array = hashMapArray(t, map);
-    for (unsigned i = index; i < arrayLength(t, array); ++i) {
-      if (arrayBody(t, array, i)) {
-        node = arrayBody(t, array, i);
-        index = i + 1;
-        return;
+    if (array) {
+      for (unsigned i = index; i < arrayLength(t, array); ++i) {
+        if (arrayBody(t, array, i)) {
+          node = arrayBody(t, array, i);
+          index = i + 1;
+          return;
+        }
       }
     }
     node = 0;