/* ****************************************************************************

 *

 * Copyright (c) Microsoft Corporation. 

 *

 * This source code is subject to terms and conditions of the Apache License, Version 2.0. A 

 * copy of the license can be found in the License.html file at the root of this distribution. If 

 * you cannot locate the  Apache License, Version 2.0, please send an email to 

 * ironruby@microsoft.com. By using this source code in any fashion, you are agreeing to be bound 

 * by the terms of the Apache License, Version 2.0.

 *

 * You must not remove this notice, or any other, from this software.

 *

 *

 * ***************************************************************************/



using System;

using System.Collections.Generic;

using System.Runtime.CompilerServices;

using System.Text;



namespace IronRuby.Runtime {

    public class ReferenceEqualityComparer : IEqualityComparer<object> {

        private ReferenceEqualityComparer() {}



        public static readonly ReferenceEqualityComparer Instance = new ReferenceEqualityComparer();



        public new bool Equals(object x, object y) {

            return Object.ReferenceEquals(x, y);

        }



        public int GetHashCode(object obj) {

            return RuntimeHelpers.GetHashCode(obj);

        }

    }

}