OrdinalCaseSensitiveComparer.cs

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using System.Runtime.Serialization;
 
namespace System;
 
[Serializable]
internal sealed class OrdinalCaseSensitiveComparer : OrdinalComparer, ISerializable
{
    internal static readonly OrdinalCaseSensitiveComparer Instance = new OrdinalCaseSensitiveComparer();
 
    private OrdinalCaseSensitiveComparer()
        : base(ignoreCase: false)
    {
    }
 
    public override int Compare(string x, string y)
    {
        return string.CompareOrdinal(x, y);
    }
 
    public override bool Equals(string x, string y)
    {
        return string.Equals(x, y);
    }
 
    public override int GetHashCode(string obj)
    {
        if (obj == null)
        {
            ThrowHelper.ThrowArgumentNullException(ExceptionArgument.obj);
        }
        return obj.GetHashCode();
    }
 
    public void GetObjectData(SerializationInfo info, StreamingContext context)
    {
        info.SetType(typeof(OrdinalComparer));
        info.AddValue("_ignoreCase", value: false);
    }
}