Neos: This class implements \TYPO3\Flow\Property\PropertyMapper into TypoScript2 / Fusion

PropertyMapperHelper.php

<?php
namespace KaufmannDigital\Neos\Base\Eel\Helper;

use TYPO3\Flow\Annotations as Flow;
use TYPO3\Eel\ProtectedContextAwareInterface;
use TYPO3\Flow\Property\PropertyMapper;

/**
 * Class PropertyMapperHelper
 * 
 * This class implements \TYPO3\Flow\Property\PropertyMapper into TypoScript2 / Fusion
 * Example usage (Fusion): myObject = ${PropertyMapper.convert(request.arguments.myObject, 'My\Namespace\And\ClassName')}
 *
 * @author Niklas Droste <[email protected]>
 */
class PropertyMapperHelper implements ProtectedContextAwareInterface
{
    /**
     * @Flow\Inject
     * @var PropertyMapper
     */
    protected $propertyMapper;

    /**
     * @param mixed $source
     * @param string $targetType
     * @return mixed
     */
    public function convert($source, $targetType)
    {
        return $this->propertyMapper->convert($source, $targetType);
    }

    /**
     * @param string $methodName
     * @return bool
     */
    public function allowsCallOfMethod($methodName)
    {
        return true;
    }
}

Settings.yaml

TYPO3:
  TypoScript:
    defaultContext:
      'PropertyMapper': 'Package\Vendor\Eel\Helper\PropertyMapperHelper'