/// <summary>
/// Walks through the tree, and calls the handler for each node.
/// </summary>
/// <param name="handler">The method to be called for each nodes</param>
public void Walk(WalkHandler handler)
{
List <Element> ancestors = new List <Element>();
handler?.Invoke(this, ancestors);
Walk(this, ancestors, handler);
}
private void Walk(Element parent, List <Element> ancestors, WalkHandler handler)
{
if (parent.children != null)
{
List <Element> _ancestors = new List <Element>(ancestors)
{
parent
};
foreach (Element child in parent.children)
{
handler?.Invoke(child, _ancestors);
Walk(child, _ancestors, handler);
}
}
}