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Guillaume Perréal authored05484ced
<?php declare(strict_types=1);
/*
* This file is part of "irstea/ng-model-generator-bundle".
*
* "irstea/ng-model-generator-bundle" generates Typescript interfaces for Angular using api-platform metadata.
* Copyright (C) 2018-2020 IRSTEA
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License and the GNU
* Lesser General Public License along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
namespace Irstea\NgModelGeneratorBundle\Iterators;
/**
* Class RecursorIterator.
*/
class RecursorIterator extends \IteratorIterator implements \RecursiveIterator
{
/**
* {@inheritdoc}
*/
public function hasChildren()
{
$value = $this->current();
return \is_array($value) || $value instanceof \Iterator || $value instanceof \IteratorAggregate;
}
/**
* {@inheritdoc}
*/
public function getChildren()
{
$value = $this->current();
if (\is_array($value)) {
$iter = new \ArrayIterator($value);
} elseif ($value instanceof \IteratorAggregate) {
$iter = $value->getIterator();
} elseif ($value instanceof \Iterator) {
$iter = $value;
} else {
return null;
}
return $this->doGetChildren($iter);
}
/**
* @param \Traversable $iter
*
* @return \RecursiveIterator
*/
protected function doGetChildren(\Traversable $iter): \RecursiveIterator
{
return new self($iter);
}
}