/**
* @param AstNode $node
* @return DoubleDispatcher|null
*/
private function getDispatcher(AstNode $node)
{
$builder = new VisitorMethodDispatcherBuilder();
$builder->setDispatcherType($this->visitors);
$node->configureDoubleDispatcher($builder);
$dispatcher = $builder->build();
return $dispatcher;
}
/**
* @param $visitor
* @param AstNode $node
*
* @return DispatchingVisitor
*/
private function createDispatchingVisitor($visitor, AstNode $node)
{
$builder = new DispatchingVisitorBuilder();
$node->configureDoubleDispatcher($builder);
$builder->setVisitor($visitor);
$dispatcher = $builder->build();
return $dispatcher;
}