AncestorDocOrderIterator.cs

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using System.ComponentModel;
using System.Xml.XPath;
 
namespace System.Xml.Xsl.Runtime;
 
[EditorBrowsable(EditorBrowsableState.Never)]
public struct AncestorDocOrderIterator
{
    private XmlNavigatorStack _stack;
 
    private XPathNavigator _navCurrent;
 
    public XPathNavigator Current => _navCurrent;
 
    public void Create(XPathNavigator context, XmlNavigatorFilter filter, bool orSelf)
    {
        AncestorIterator ancestorIterator = default(AncestorIterator);
        ancestorIterator.Create(context, filter, orSelf);
        _stack.Reset();
        while (ancestorIterator.MoveNext())
        {
            _stack.Push(ancestorIterator.Current.Clone());
        }
    }
 
    public bool MoveNext()
    {
        if (_stack.IsEmpty)
        {
            return false;
        }
        _navCurrent = _stack.Pop();
        return true;
    }
}