--- /dev/null
+<?php
+/*
+ * This file is part of the PHP_CodeCoverage package.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Driver for HHVM's code coverage functionality.
+ *
+ * @since Class available since Release 2.2.2
+ * @codeCoverageIgnore
+ */
+class PHP_CodeCoverage_Driver_HHVM extends PHP_CodeCoverage_Driver_Xdebug
+{
+ /**
+ * Start collection of code coverage information.
+ */
+ public function start()
+ {
+ xdebug_start_code_coverage();
+ }
+}