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<?php /** * Hoa * * * @license * * New BSD License * * Copyright © 2007-2017, Hoa community. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the Hoa nor the names of its contributors may be * used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ namespace Hoa\Iterator; /** * Class \Hoa\Iterator\Multiple. * * Extending the SPL MultipleIterator class. * * @copyright Copyright © 2007-2017 Hoa community * @license New BSD License */ class Multiple extends \MultipleIterator { /** * Default value for each $infos. * * @var array */ protected $_infos = []; /** * Attach iterator informations. * Add the $default argument that will be use when the iterator has reached * its end. * * @param \Iterator $iterator Iterator. * @param string $infos Informations to attach. * @param mixed $default Default value. * @return void */ public function attachIterator( \Iterator $iterator, $infos = null, $default = null ) { $out = parent::attachIterator($iterator, $infos); if (null === $infos) { $this->_infos[] = $default; } else { $this->_infos[$infos] = $default; } return $out; } /** * Get the registered iterator instances. * * @return array */ public function current() { $out = parent::current(); foreach ($out as $key => &$value) { if (null === $value) { $value = $this->_infos[$key]; } } return $out; } }
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