From ce7edc9b3c7370f32fec0bc7a8ec3e29ed9a5f61 Mon Sep 17 00:00:00 2001
From: "Mark A. Hershberger" <mah@debian.(none)>
Date: Wed, 25 Mar 2009 00:34:59 -0400
Subject: Imported Upstream version 5.1.1

---
 ext/spl/internal/recursivearrayiterator.inc | 59 +++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100755 ext/spl/internal/recursivearrayiterator.inc

(limited to 'ext/spl/internal/recursivearrayiterator.inc')

diff --git a/ext/spl/internal/recursivearrayiterator.inc b/ext/spl/internal/recursivearrayiterator.inc
new file mode 100755
index 000000000..833a65686
--- /dev/null
+++ b/ext/spl/internal/recursivearrayiterator.inc
@@ -0,0 +1,59 @@
+<?php
+
+/** @file recursivearrayiterator.inc
+ * @ingroup Examples
+ * @brief class RecursiveArrayIterator
+ * @author  Marcus Boerger
+ * @date    2003 - 2005
+ *
+ * SPL - Standard PHP Library
+ */
+
+/** @ingroup SPL
+ * @brief   A recursive array iterator
+ * @author  Marcus Boerger
+ * @version 1.0
+ * @since PHP 5.1
+ *
+ * Passes the RecursiveIterator interface to the inner Iterator and provides
+ * the same functionality as FilterIterator. This allows you to skip parents
+ * and all their childs before loading them all. You need to care about
+ * function getChildren() because it may not always suit your needs. The 
+ * builtin behavior uses reflection to return a new instance of the exact same
+ * class it is called from. That is you extend RecursiveFilterIterator and
+ * getChildren() will create instance of that class. The problem is that doing
+ * this does not transport any state or control information of your accept()
+ * implementation to the new instance. To overcome this problem you might 
+ * need to overwrite getChildren(), call this implementation and pass the
+ * control vaules manually.
+ */
+class RecursiveArrayIterator extends ArrayIterator implements RecursiveIterator
+{
+	/** @return whether the current element has children
+	 */
+	function hasChildren()
+	{
+		return is_array($this->current());
+	}
+
+	/** @return an iterator for the current elements children
+	 *
+	 * @note the returned iterator will be of the same class as $this
+	 */
+	function getChildren()
+	{
+		if ($this->current() instanceof self)
+		{
+			return $this->current();
+		}
+		if (empty($this->ref))
+		{
+			$this->ref = new ReflectionClass($this);
+		}
+		return $this->ref->newInstance($this->current());
+	}
+	
+	private $ref;
+}
+
+?>
\ No newline at end of file
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