<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\VarDumper\Cloner;

/**
 * DumperInterface used by Data objects.
 *
 * @author Nicolas Grekas <p@tchwork.com>
 */
interface DumperInterface
{
	/**
	 * Dumps a scalar value.
	 *
	 * @param Cursor $cursor The Cursor position in the dump
	 * @param string $type   The PHP type of the value being dumped
	 * @param scalar $value  The scalar value being dumped
	 */
	public function dumpScalar(Cursor $cursor, $type, $value);

	/**
	 * Dumps a string.
	 *
	 * @param Cursor $cursor The Cursor position in the dump
	 * @param string $str    The string being dumped
	 * @param bool   $bin    Whether $str is UTF-8 or binary encoded
	 * @param int    $cut    The number of characters $str has been cut by
	 */
	public function dumpString(Cursor $cursor, $str, $bin, $cut);

	/**
	 * Dumps while entering an hash.
	 *
	 * @param Cursor $cursor   The Cursor position in the dump
	 * @param int    $type     A Cursor::HASH_* const for the type of hash
	 * @param string $class    The object class, resource type or array count
	 * @param bool   $hasChild When the dump of the hash has child item
	 */
	public function enterHash(Cursor $cursor, $type, $class, $hasChild);

	/**
	 * Dumps while leaving an hash.
	 *
	 * @param Cursor $cursor   The Cursor position in the dump
	 * @param int    $type     A Cursor::HASH_* const for the type of hash
	 * @param string $class    The object class, resource type or array count
	 * @param bool   $hasChild When the dump of the hash has child item
	 * @param int    $cut      The number of items the hash has been cut by
	 */
	public function leaveHash(Cursor $cursor, $type, $class, $hasChild, $cut);
}