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<?php
/*
* (c) Jean-François Lépine <https://twitter.com/Halleck45>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Hal\Component\Tree;
class HashMap implements \Countable, \IteratorAggregate
{
/**
* @var array
private $nodes = array();
* @param Node $node
* @return $this
public function attach(Node $node)
$this->nodes[$node->getKey()] = $node;
return $this;
}
* @param $key
* @return Node
public function get($key)
return $this->has($key) ? $this->nodes[$key] : null;
* @return bool
public function has($key)
return isset($this->nodes[$key]);
* @return int
public function count()
return sizeof($this->nodes);
* @return \ArrayIterator
public function getIterator()
return new \ArrayIterator($this->nodes);
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