public static SqfNode GetParent(this SqfNode node)
{
SqfNode weak;
if (node.ParentWeak.TryGetTarget(out weak))
{
return(weak);
}
return(default(SqfNode));
}
public static void RemoveFromTree(this SqfNode node)
{
var parent = node.GetParent();
var nodeIndex = parent.Children.IndexOf(node);
parent.Children.Remove(node);
foreach (var it in node.Children)
{
parent.Children.Insert(nodeIndex, it);
}
}
public static int ParentCount(this SqfNode node)
{
int i = 0;
var tmp = node;
while ((tmp = tmp.GetParent()) != null)
{
i++;
}
return(i);
}
public static void AddChild(this SqfNode node, SqfNode newChild)
{
node.Children.Add(newChild);
}
public static void SetParent(this SqfNode node, SqfNode parent)
{
node.ParentWeak.SetTarget(parent);
}
public SqfNode(SqfNode parent)
{
this.ParentWeak = new WeakReference <SqfNode>(parent);
this.Children = new List <SqfNode>();
}
public SqfAssignment(SqfNode parent) : base(parent)
{
}