php-parser/lib/PhpParser/NodeVisitorAbstract.php

<?php

namespace PhpParser;

/**
 * @codeCoverageIgnore
 */
class NodeVisitorAbstract implements NodeVisitor
{
    public function beforeTraverse(array $nodes)    { }
    public function enterNode(Node $node) { }
    public function leaveNode(Node $node) { }
    public function afterTraverse(array $nodes)     { }
}