/**
* Parse the Twig configuration
*
* @param ArrayNodeDefinition $rootNode
*/
private function parseTwig($rootNode)
{
$rootNode->children()->arrayNode(PolymerConfiguration::KEY_TWIG)->addDefaultsIfNotSet()->children()->arrayNode(TwigConfiguration::KEY_TEMPLATES)->prototype("scalar")->defaultValue(TwigConfiguration::getDefault(TwigConfiguration::KEY_TEMPLATES))->end()->end()->scalarNode(TwigConfiguration::KEY_TAG)->defaultValue(TwigConfiguration::getDefault(TwigConfiguration::KEY_TAG))->end()->end()->end();
}