NEWOBJ(klass, struct RClass);
            OBJSETUP(klass, rb_cClass, T_CLASS);

            if (BUILTIN_TYPE(module) == T_ICLASS) {
                module = RBASIC(module)->klass;
            }

            if (!RCLASS(module)->iv_tbl) {
                printf("iv tbl not exist, creating one\n");
                RCLASS(module)->iv_tbl = st_init_numtable();
            }
            klass->iv_tbl = RCLASS(module)->iv_tbl;


            if(TYPE(module) != T_OBJECT) {
                printf("subject is not an Object\n");
                klass->m_tbl = RCLASS(module)->m_tbl;
                klass->super = sup;
            }