private function getLoader()
    {
        if (null == $this->loader) {
            $this->loader = new Twig_Loader_Filesystem(
                $this->locations
            );
        }
        return $this->loader;
    }
private function getLoader()
    {
        if (null == $this->loader) {
            $this->loader = new Twig_Loader_Filesystem(
                $this->locations
            );
        }
        return $this->loader;
    }
private function getLoader ( ) { if ( null == $ this -> loader ) { $ this -> loader = new Twig_Loader_Filesystem ( $ this -> locations ) ; } return $ this -> loader ; }
Creates a file system loader

@return Twig_Loader_Filesystem
Creates a file system loader