XPathPrecedingIterator.cs

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