NodeKindContentIterator.cs

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using System.ComponentModel;
using System.Xml.XPath;
 
namespace System.Xml.Xsl.Runtime;
 
[EditorBrowsable(EditorBrowsableState.Never)]
public struct NodeKindContentIterator
{
    private XPathNodeType _nodeType;
 
    private XPathNavigator _navCurrent;
 
    private bool _needFirst;
 
    public XPathNavigator Current => _navCurrent;
 
    public void Create(XPathNavigator context, XPathNodeType nodeType)
    {
        _navCurrent = XmlQueryRuntime.SyncToNavigator(_navCurrent, context);
        _nodeType = nodeType;
        _needFirst = true;
    }
 
    public bool MoveNext()
    {
        if (_needFirst)
        {
            _needFirst = !_navCurrent.MoveToChild(_nodeType);
            return !_needFirst;
        }
        return _navCurrent.MoveToNext(_nodeType);
    }
}