// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace System.Configuration
{
    // Used in cases where the Host does not require impersonation.
    internal sealed class EmptyImpersonationContext : IDisposable
    {
        private static volatile IDisposable s_emptyImpersonationContext;
 
        public void Dispose() { }
 
        internal static IDisposable GetStaticInstance()
        {
            return s_emptyImpersonationContext ??= new EmptyImpersonationContext();
        }
    }
}