How does \Magento\Framework\DataObject\Copy::_isFieldsetInputValid() work?

dmitry_fedyuk · August 22, 2016, 5:11am

Context: How does \Magento\Framework\DataObject\Copy::copyFieldsetToTarget() work?

magento/magento2/blob/2.1.0/lib/internal/Magento/Framework/DataObject/Copy.php#L156-L171


/**
 * Check if source and target are valid input for converting using fieldset
 *
 * @param array|\Magento\Framework\DataObject $source
 * @param array|\Magento\Framework\DataObject $target
 * @return bool
 */
protected function _isFieldsetInputValid($source, $target)
{
    return (is_array($source) || $source instanceof \Magento\Framework\DataObject ||
        $source instanceof \Magento\Framework\Api\ExtensibleDataInterface ||
        $source instanceof \Magento\Framework\Api\AbstractSimpleObject) && (
        is_array($target) || $target instanceof \Magento\Framework\DataObject ||
        $target instanceof \Magento\Framework\Api\ExtensibleDataInterface ||
        $target instanceof \Magento\Framework\Api\AbstractSimpleObject);
}