MemberMappingComparer.cs

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using System.Collections.Generic;
 
namespace System.Xml.Serialization;
 
internal sealed class MemberMappingComparer : IComparer<MemberMapping>
{
    public int Compare(MemberMapping m1, MemberMapping m2)
    {
        if (m1.IsText)
        {
            if (m2.IsText)
            {
                return 0;
            }
            return 1;
        }
        if (m2.IsText)
        {
            return -1;
        }
        if (m1.SequenceId < 0 && m2.SequenceId < 0)
        {
            return 0;
        }
        if (m1.SequenceId < 0)
        {
            return 1;
        }
        if (m2.SequenceId < 0)
        {
            return -1;
        }
        if (m1.SequenceId < m2.SequenceId)
        {
            return -1;
        }
        if (m1.SequenceId > m2.SequenceId)
        {
            return 1;
        }
        return 0;
    }
}