/**
* Cleanup circular references between layout & blocks
*
* Destructor should be called explicitly in order to work around the PHP bug
* https://bugs.php.net/bug.php?id=62468
*/
public function __destruct()
{
if (isset($this->_update) && is_object($this->_update)) {
$this->_update->__destruct();
$this->_update = null;
}
$this->_blocks = [];
parent::__destruct();
}
/**
* Enter description here...
*
* @param \Magento\Framework\Simplexml\Config $config
* @param boolean $overwrite
* @return $this
*/
public function extend(\Magento\Framework\Simplexml\Config $config, $overwrite = true)
{
$this->getNode()->extend($config->getNode(), $overwrite);
return $this;
}
public function testExtendNode()
{
$config = new Config(__DIR__ . '/_files/data.xml');
$config->extend(new Config('<config><node>1</node></config>'));
$this->assertSame('1', $config->getNode('node')->asArray());
}
/**
* @param string|\Magento\Framework\Simplexml\Element $sourceData $sourceData
*/
public function __construct($sourceData = null)
{
$this->_elementClass = 'Magento\\Framework\\App\\Config\\Element';
parent::__construct($sourceData);
self::$instances[] = $this;
}
