private NodeExpression(NodeExpression parent, IElement element, ITextIndexer textIndexer)
{
NodeType = textIndexer.GetIndex(element.TagName);
Content = textIndexer.GetIndex(element.TextContent);
Parent = parent;
Element = element;
var children = new NodeExpression[element.Children.Length];
for (int i = 0; i < element.Children.Length; i++)
{
children[i] = new NodeExpression(this, element.Children[i], textIndexer);
}
Children = children;
_hash = $"[{NodeType}.{Content}.{string.Join(string.Empty, Children.Select(x => x.ToString()))}]";
}
