private static IEnumerable <IXmlElementSyntax> GetDescendantsInternal(SyntaxNode node, bool includeSelf)
{
if (includeSelf && node.IsElement())
{
yield return((IXmlElementSyntax)node);
}
var childStack = new Stack <SyntaxNode>();
childStack.Push(node);
while (childStack.Count > 0)
{
var c = childStack.Pop();
for (int i = c.GreenNode.SlotCount - 1; i >= 0; i--)
{
var child = c.GetNodeSlot(i);
if (child != null)
{
childStack.Push(child);
}
}
if (childStack.Count > 0)
{
var stackTop = childStack.Peek();
if (stackTop != null && stackTop.IsElement())
{
yield return((IXmlElementSyntax)stackTop);
}
}
}
}
private static IEnumerable <IXmlElementSyntax> GetAncestorsInternal(SyntaxNode node, bool includeSelf)
{
if (includeSelf && node.IsElement())
{
yield return((IXmlElementSyntax)node);
}
var parent = node.ParentElement;
while (parent != null)
{
yield return(parent);
parent = parent.Parent;
}
}
