15989     PyObject *it_seq;    /* Set to NULL when iterator is exhausted */  member
15996     Py_XDECREF(it->it_seq);  in unicodeiter_dealloc()
16003     Py_VISIT(it->it_seq);  in unicodeiter_traverse()
16013     seq = it->it_seq;  in unicodeiter_next()
16028     it->it_seq = NULL;  in unicodeiter_next()
16037     if (it->it_seq)  in unicodeiter_len()
16038         len = PyUnicode_GET_LENGTH(it->it_seq) - it->it_index;  in unicodeiter_len()
16048     if (it->it_seq != NULL) {  in unicodeiter_reduce()
16050                              it->it_seq, it->it_index);  in unicodeiter_reduce()
16067     if (it->it_seq != NULL) {  in unicodeiter_setstate()
16070         else if (index > PyUnicode_GET_LENGTH(it->it_seq))  in unicodeiter_setstate()
16071             index = PyUnicode_GET_LENGTH(it->it_seq); /* iterator truncated */  in unicodeiter_setstate()
16138     it->it_seq = seq;  in unicode_iter()