IdentityReference.cs

using System.Runtime.InteropServices;

namespace System.Security.Principal
{
    [ComVisible(false)]
    public abstract class IdentityReference
    {
        public abstract string Value
        {
            get;
        }

        internal IdentityReference()
        {
        }

        public abstract bool IsValidTargetType(Type targetType);

        public abstract IdentityReference Translate(Type targetType);

        public abstract override bool Equals(object o);

        public abstract override int GetHashCode();

        public abstract override string ToString();

        public static bool operator ==(IdentityReference left, IdentityReference right)
        {
            if ((object)left == null && (object)right == null)
            {
                return true;
            }
            if ((object)left == null || (object)right == null)
            {
                return false;
            }
            return left.Equals(right);
        }

        public static bool operator !=(IdentityReference left, IdentityReference right)
        {
            return !(left == right);
        }
    }
}