/**
* Clears all expression types
*/
public function clearTypes()
{
$this->types = array();
$this->typesCount = array();
$this->pluginInstances = array();
$this->plugins = array();
$this->events->clear();
Expression\Plugin::$indexes = array();
Expression\Plugin::$customClasses = array();
Expression\BlockType\Header::$ids = array();
}
