/**
* @override
*/
function push(ParseNode $Node, $recursion = true)
{
//echo "<br />\n(",$Node->length,") ",j_token_name($Node->t)," pushed onto (",$this->length,") ", j_token_name($this->t);
if ($Node->is_transparent($this)) {
//while( $Child = $Node->remove_at(0) ){
// //echo " COLLAPSE to ", j_token_name( $Child->t );
// parent::push( $Child, $recursion );
// unset( $Child );
//}
parent::push_thru($Node);
$Node->destroy();
return $this->length;
}
// else append this single node
return parent::push($Node, $recursion);
}
protected function _set_parent(EE_TreeNode $p)
{
parent::_set_parent($p);
do {
if ($p instanceof QueryNode) {
$p->addClosurePath($this);
break;
}
$p = $p->parent();
} while ($p);
}
/**
* Push the child nodes of a node onto this node
* @param ParseNode
* @return int new length of this node
*/
function push_thru(ParseNode $Node)
{
foreach ($Node->children as $Child) {
$Node->remove($Child);
$this->push($Child);
}
return $this->length;
}
