Broke out array equals() into its own method.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4661 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/util/ArrayUtil.as

@@ -107,6 +107,26 @@ public class ArrayUtil
         return removeImpl(arr, element, false);
     }
 
+    /**
+     * Do the two arrays contain elements that are all equals()?
+     */
+    public static function equals (ar1 :Array, ar2 :Array) :Boolean
+    {
+        if (ar1 === ar2) {
+            return true;
+
+        } else if (ar1 == null || ar2 == null || ar1.length != ar2.length) {
+            return false;
+        }
+
+        for (var jj :int = 0; jj < ar1.length; jj++) {
+            if (!Util.equals(ar1[jj], ar2[jj])) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     /**
      * Implementation of remove methods.
      */

src/as/com/threerings/util/Util.as

@@ -64,17 +64,7 @@ public class Util
             return (obj1 as Equalable).equals(obj2);
 
         } else if ((obj1 is Array) && (obj2 is Array)) {
-            var ar1 :Array = (obj1 as Array);
-            var ar2 :Array = (obj2 as Array);
-            if (ar1.length != ar2.length) {
-                return false;
-            }
-            for (var jj :int = 0; jj < ar1.length; jj++) {
-                if (!equals(ar1[jj], ar2[jj])) {
-                    return false;
-                }
-            }
-            return true;
+            return ArrayUtil.equals(obj1 as Array, obj2 as Array);
 
         } else if ((obj1 is ByteArray) && (obj2 is ByteArray)) {
             var ba1 :ByteArray = (obj1 as ByteArray);