15370     PyObject *it_seq;    /* Set to NULL when iterator is exhausted */  member
15377     Py_XDECREF(it->it_seq);  in unicodeiter_dealloc()
15384     Py_VISIT(it->it_seq);  in unicodeiter_traverse()
15394     seq = it->it_seq;  in unicodeiter_next()
15409     it->it_seq = NULL;  in unicodeiter_next()
15418     if (it->it_seq)  in unicodeiter_len()
15419         len = PyUnicode_GET_LENGTH(it->it_seq) - it->it_index;  in unicodeiter_len()
15428     if (it->it_seq != NULL) {  in unicodeiter_reduce()
15430                              it->it_seq, it->it_index);  in unicodeiter_reduce()
15447     if (it->it_seq != NULL) {  in unicodeiter_setstate()
15450         else if (index > PyUnicode_GET_LENGTH(it->it_seq))  in unicodeiter_setstate()
15451             index = PyUnicode_GET_LENGTH(it->it_seq); /* iterator truncated */  in unicodeiter_setstate()
15518     it->it_seq = seq;  in unicode_iter()