XmlLinkedNode.cs

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namespace System.Xml;
 
public abstract class XmlLinkedNode : XmlNode
{
    internal XmlLinkedNode next;
 
    public override XmlNode? PreviousSibling
    {
        get
        {
            XmlNode xmlNode = ParentNode;
            if (xmlNode != null)
            {
                XmlNode xmlNode2 = xmlNode.FirstChild;
                while (xmlNode2 != null)
                {
                    XmlNode nextSibling = xmlNode2.NextSibling;
                    if (nextSibling == this)
                    {
                        break;
                    }
                    xmlNode2 = nextSibling;
                }
                return xmlNode2;
            }
            return null;
        }
    }
 
    public override XmlNode? NextSibling
    {
        get
        {
            XmlNode xmlNode = ParentNode;
            if (xmlNode != null && next != xmlNode.FirstChild)
            {
                return next;
            }
            return null;
        }
    }
 
    internal XmlLinkedNode(XmlDocument doc)
        : base(doc)
    {
        next = null;
    }
}