public override bool Equals(object obj)
        {
            if (obj == null)
            {
                return(false);
            }
            if (obj.GetType() != this.GetType())
            {
                return(false);
            }
            CodeAccessPermission cap = (obj as CodeAccessPermission);

            return(IsSubsetOf(cap) && cap.IsSubsetOf(this));
        }
        internal bool CheckDeny(CodeAccessPermission denied)
        {
            if (denied == null)
            {
                return(true);
            }
            Type t = denied.GetType();

            if (t != this.GetType())
            {
                return(true);
            }
            IPermission inter = Intersect(denied);

            if (inter == null)
            {
                return(true);
            }
            // sadly that's not enough :( at this stage we must also check
            // if an empty (PermissionState.None) is a subset of the denied
            // (which is like a empty intersection looks like for flag based
            // permissions, e.g. AspNetHostingPermission).
            return(denied.IsSubsetOf(PermissionBuilder.Create(t)));
        }