public function add($aChild, $sName = null, $bTakeover = true)
{
if ($aChild instanceof Macro) {
$aAttrVal = new AttributeValue(null, '', $aChild->position(), $aChild->line());
$aAttrVal->setEndPosition($aChild->endPosition());
$aAttrVal->add($aChild);
$this->attributes()->add($aAttrVal);
$aAttrVal->setParent($this);
$aChild->setParent($this);
}
}