System.Security.Permissions.ResourcePermissionBase.IsSubsetOf C# (CSharp) Method

        public override bool IsSubsetOf(IPermission target) {
            if (target == null) {
                return (IsEmpty);
            }

            if (target.GetType() != this.GetType())
                return false;

            ResourcePermissionBase targetPermission = (ResourcePermissionBase)target;
            if (targetPermission.IsUnrestricted())
                return true;
            else if (this.IsUnrestricted())
                return false;

            return IsContentSubset(this.rootTable, targetPermission.rootTable);

        }