public function enterNode(Twig_Node $node, Twig_Environment $env)
{
if ($node instanceof Twig_Node_Module) {
$this->inAModule = true;
$this->tags = array();
$this->filters = array();
return $node;
} elseif ($this->inAModule) {
// look for tags
if ($node->getTag()) {
$this->tags[$node->getTag()] = true;
}
// look for filters
if ($node instanceof Twig_Node_Expression_Filter) {
foreach ($node->getFilters() as $filter) {
$this->filters[$filter[0]] = true;
}
}
}
return $node;
}
