public function accept(Visitor\Visit $visitor, &$handle = null, $eldnah = null)
    {
        return $visitor->visit($this, $handle, $eldnah);
    }
public function accept(Visitor\Visit $visitor, &$handle = null, $eldnah = null)
    {
        return $visitor->visit($this, $handle, $eldnah);
    }
public function accept ( Visitor \ Visit $ visitor , & $ handle = null , $ eldnah = null ) { return $ visitor -> visit ( $ this , $ handle , $ eldnah ) ; }
Accept a visitor.

@param   \Hoa\Visitor\Visit  $visitor    Visitor.
@param   mixed               &$handle    Handle (reference).
@param   mixed               $eldnah     Handle (no reference).

@return  mixed
Accept a visitor .