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<?php
namespace SQLParser\Node\Traverser;
use SQLParser\Node\NodeInterface;
/**
* This class can be used to traverse the tree of nodes.
*/
class NodeTraverser
{
const DONT_TRAVERSE_CHILDREN = 'DONT_TRAVERSE_CHILDREN';
const REMOVE_NODE = 'REMOVE_NODE';
private $visitor;
public function __construct()
$this->visitor = new CompositeVisitor();
}
* Registers a new visitor with this traverser.
*
* @param VisitorInterface $visitor
public function addVisitor(VisitorInterface $visitor)
$this->visitor->addVisitor($visitor);
* Starts traversing the tree, calling each visitor on each node.
* @param NodeInterface $node
public function walk(NodeInterface $node)
$node->walk($this->visitor);
thecodingmachine /
magic-query
