1 files changed, 67 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Iterators/AppendIterator.php b/www/wiki/extensions/SemanticMediaWiki/src/Iterators/AppendIterator.php
new file mode 100644
index 00000000..1fcf6cda
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Iterators/AppendIterator.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace SMW\Iterators;
+
+use ArrayIterator;
+use Countable;
+use Iterator;
+use RuntimeException;
+use Traversable;
+
+/**
+ * @see Guzzle::AppendIterator
+ * @see https://bugs.php.net/bug.php?id=49104
+ *
+ * @license GNU GPL v2+
+ * @since 3.0
+ */
+class AppendIterator extends \AppendIterator implements Countable {
+
+	/**
+	 * @var integer
+	 */
+	private $count = 0;
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param Traversable|array $iterator
+	 */
+	public function add( $iterable ) {
+
+		if ( is_array( $iterable ) ) {
+			$iterable = new ArrayIterator( $iterable );
+		}
+
+		if ( !$iterable instanceof Traversable ) {
+			throw new RuntimeException( "AppendIterator expected an Traversable" );
+		}
+
+		$this->append( $iterable );
+	}
+
+	/**
+	 * @see Countable::count
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function count() {
+		return $this->count;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function append( Iterator $iterable ) {
+
+		if ( $iterable instanceof Countable ) {
+			$this->count += $iterable->count();
+		}
+
+		$this->getArrayIterator()->append( $iterable );
+	}
+
+}