public static class Guard
{
    public static void IsNotNull<T>(Expression<Func<T>> expression)
    {
        var param = (MemberExpression)expression.Body;
        var fieldInfo = (FieldInfo)param.Member;
        var paramValue = fieldInfo.GetValue(((ConstantExpression)param.Expression).Value);

        if (paramValue == null)
        {
            throw new ArgumentNullException(fieldInfo.Name);
        }
    }
}