laravel5/vendor/nikic/php-parser/lib/PhpParser/NodeVisitorAbstract.php

<?php declare(strict_types=1);

namespace PhpParser;

/**
 * @codeCoverageIgnore
 */
class NodeVisitorAbstract implements NodeVisitor
{
    public function beforeTraverse(array $nodes) {
        return null;
    }

    public function enterNode(Node $node) {
        return null;
    }

    public function leaveNode(Node $node) {
        return null;
    }

    public function afterTraverse(array $nodes) {
        return null;
    }
}