XmlQueryItemSequence.cs

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using System.ComponentModel;
using System.Xml.XPath;
 
namespace System.Xml.Xsl.Runtime;
 
[EditorBrowsable(EditorBrowsableState.Never)]
public sealed class XmlQueryItemSequence : XmlQuerySequence<XPathItem>
{
    public new static readonly XmlQueryItemSequence Empty = new XmlQueryItemSequence();
 
    public static XmlQueryItemSequence CreateOrReuse(XmlQueryItemSequence seq)
    {
        if (seq != null)
        {
            seq.Clear();
            return seq;
        }
        return new XmlQueryItemSequence();
    }
 
    public static XmlQueryItemSequence CreateOrReuse(XmlQueryItemSequence seq, XPathItem item)
    {
        if (seq != null)
        {
            seq.Clear();
            seq.Add(item);
            return seq;
        }
        return new XmlQueryItemSequence(item);
    }
 
    public XmlQueryItemSequence()
    {
    }
 
    public XmlQueryItemSequence(int capacity)
        : base(capacity)
    {
    }
 
    public XmlQueryItemSequence(XPathItem item)
        : base(1)
    {
        AddClone(item);
    }
 
    public void AddClone(XPathItem item)
    {
        if (item.IsNode)
        {
            Add(((XPathNavigator)item).Clone());
        }
        else
        {
            Add(item);
        }
    }
}