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py/obj: Add warning note about get_array return value and GC blocks.

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This commit is contained in:
Damien George 2016-05-04 10:19:08 +01:00
parent 2c2fc070ec
commit eb54e4d065
2 changed files with 4 additions and 2 deletions
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2
py/obj.c
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@ -317,6 +317,7 @@ void mp_obj_get_complex(mp_obj_t arg, mp_float_t *real, mp_float_t *imag) {
#endif
#endif
// note: returned value in *items may point to the interior of a GC block
void mp_obj_get_array(mp_obj_t o, mp_uint_t *len, mp_obj_t **items) {
if (MP_OBJ_IS_TYPE(o, &mp_type_tuple)) {
mp_obj_tuple_get(o, len, items);
@ -333,6 +334,7 @@ void mp_obj_get_array(mp_obj_t o, mp_uint_t *len, mp_obj_t **items) {
}
}
// note: returned value in *items may point to the interior of a GC block
void mp_obj_get_array_fixed_n(mp_obj_t o, mp_uint_t len, mp_obj_t **items) {
mp_uint_t seq_len;
mp_obj_get_array(o, &seq_len, items);

4
py/obj.h
View File

@ -651,8 +651,8 @@ mp_float_t mp_obj_get_float(mp_obj_t self_in);
void mp_obj_get_complex(mp_obj_t self_in, mp_float_t *real, mp_float_t *imag);
#endif
//qstr mp_obj_get_qstr(mp_obj_t arg);
void mp_obj_get_array(mp_obj_t o, mp_uint_t *len, mp_obj_t **items);
void mp_obj_get_array_fixed_n(mp_obj_t o, mp_uint_t len, mp_obj_t **items);
void mp_obj_get_array(mp_obj_t o, mp_uint_t *len, mp_obj_t **items); // *items may point inside a GC block
void mp_obj_get_array_fixed_n(mp_obj_t o, mp_uint_t len, mp_obj_t **items); // *items may point inside a GC block
mp_uint_t mp_get_index(const mp_obj_type_t *type, mp_uint_t len, mp_obj_t index, bool is_slice);
mp_obj_t mp_obj_id(mp_obj_t o_in);
mp_obj_t mp_obj_len(mp_obj_t o_in);