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<?php declare(strict_types = 1);

namespace PHPStan\PhpDocParser\Ast;

/**
 * Inspired by https://github.com/nikic/PHP-Parser/tree/36a6dcd04e7b0285e8f0868f44bd4927802f7df1
 *
 * Copyright (c) 2011, Nikita Popov
 * All rights reserved.
 */
abstract class AbstractNodeVisitor implements NodeVisitor // phpcs:ignore SlevomatCodingStandard.Classes.SuperfluousAbstractClassNaming.SuperfluousPrefix
{

	public function beforeTraverse(array $nodes): ?array
	{
		return null;
	}

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

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

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

}