// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Diagnostics;
 
namespace System.Xml
{
    /// <summary>
    /// Ref class is used to verify string atomization in debug mode.
    /// </summary>
    internal static class Ref
    {
        public static bool Equal(string? strA, string? strB)
        {
#if DEBUG
            if (((object?)strA != (object?)strB) && string.Equals(strA, strB))
                Debug.Fail("Ref.Equal: Object comparison used for non-atomized string '" + strA + "'");
#endif
            return (object?)strA == (object?)strB;
        }
    }
}