From a18f1926d99a72921f39463e89bb7d636164790a Mon Sep 17 00:00:00 2001
From: "Timothy J. Warren" <tim@timshomepage.net>
Date: Mon, 9 Nov 2015 11:49:51 -0500
Subject: [PATCH] Fix ArrayType class

---
 src/Aviat/Ion/Type/ArrayType.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Aviat/Ion/Type/ArrayType.php b/src/Aviat/Ion/Type/ArrayType.php
index d03ecb2b..a88ed66d 100644
--- a/src/Aviat/Ion/Type/ArrayType.php
+++ b/src/Aviat/Ion/Type/ArrayType.php
@@ -205,7 +205,12 @@ class ArrayType {
 		{
 			if (empty($pos) || ! is_array($pos))
 			{
-				return NULL;
+				// Directly returning a NULL value here will
+				// result in a reference error. This isn't
+				// excess code, just what's required for this
+				// unique situation.
+				$pos = NULL;
+				return $pos;
 			}
 			$pos =& $pos[$level];
 		}