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<?php
namespace OpenMindParser\Models;
use \InvalidArgumentException;
use \ArrayIterator;
/*A class to store a collection of Node Objects as a Traversable entity.*/
class NodeList implements \IteratorAggregate
{
/**
* @var Node[]
*/
private $list;
public function __construct(array $list = null) {
if(empty($list)) {
$list = [];
}
foreach($list as $node) {
if(!($node instanceof Node)) {
throw new InvalidArgumentException('The array must contain only Node objects. "'.get_class($node).'" given.');
$this->list = $list;
* Method to retrieve the iterrator on the list property.
*
* @return ArrayIterator : the ArrayInterrator instance with the current collection.
public function getIterator() {
return new ArrayIterator($this->list);
* Add a Node object to the collection.
* @param Node $node : The Node instance to add to the current collection.
public function add(Node $node) {
$this->list[] = $node;
Arlisaha /
openMindParser
