py: Add typecode to buffer protocol.
When querying an object that supports the buffer protocol, that object
must now return a typecode (as per binary.[ch]). This does not have to
be honoured by the caller, but can be useful for determining element
size.
diff --git a/py/objstr.c b/py/objstr.c
index e444ec7..a682144 100644
--- a/py/objstr.c
+++ b/py/objstr.c
@@ -1326,16 +1326,18 @@
}
#endif
-STATIC machine_int_t str_get_buffer(mp_obj_t self_in, buffer_info_t *bufinfo, int flags) {
- if (flags == BUFFER_READ) {
+STATIC machine_int_t str_get_buffer(mp_obj_t self_in, mp_buffer_info_t *bufinfo, int flags) {
+ if (flags == MP_BUFFER_READ) {
GET_STR_DATA_LEN(self_in, str_data, str_len);
bufinfo->buf = (void*)str_data;
bufinfo->len = str_len;
+ bufinfo->typecode = 'b';
return 0;
} else {
// can't write to a string
bufinfo->buf = NULL;
bufinfo->len = 0;
+ bufinfo->typecode = -1;
return 1;
}
}