XmlEmptySortKey.cs

Go to the documentation of this file.

namespace System.Xml.Xsl.Runtime;
 
internal sealed class XmlEmptySortKey : XmlSortKey
{
    private readonly bool _isEmptyGreatest;
 
    public bool IsEmptyGreatest => _isEmptyGreatest;
 
    public XmlEmptySortKey(XmlCollation collation)
    {
        _isEmptyGreatest = collation.EmptyGreatest != collation.DescendingOrder;
    }
 
    public override int CompareTo(object obj)
    {
        if (!(obj is XmlEmptySortKey that))
        {
            return -(obj as XmlSortKey).CompareTo(this);
        }
        return BreakSortingTie(that);
    }
}