diff options
Diffstat (limited to 'py/obj.h')
| -rw-r--r-- | py/obj.h | 11 |
1 files changed, 10 insertions, 1 deletions
@@ -563,14 +563,23 @@ typedef struct _mp_obj_static_class_method_t { const mp_obj_t *mp_obj_property_get(mp_obj_t self_in); // sequence helpers + +// slice indexes resolved to particular sequence +typedef struct { + machine_uint_t start; + machine_uint_t stop; + machine_int_t step; +} mp_bound_slice_t; + void mp_seq_multiply(const void *items, uint item_sz, uint len, uint times, void *dest); -bool mp_seq_get_fast_slice_indexes(machine_uint_t len, mp_obj_t slice, machine_uint_t *begin, machine_uint_t *end); +bool mp_seq_get_fast_slice_indexes(machine_uint_t len, mp_obj_t slice, mp_bound_slice_t *indexes); #define mp_seq_copy(dest, src, len, item_t) memcpy(dest, src, len * sizeof(item_t)) #define mp_seq_cat(dest, src1, len1, src2, len2, item_t) { memcpy(dest, src1, (len1) * sizeof(item_t)); memcpy(dest + (len1), src2, (len2) * sizeof(item_t)); } bool mp_seq_cmp_bytes(int op, const byte *data1, uint len1, const byte *data2, uint len2); bool mp_seq_cmp_objs(int op, const mp_obj_t *items1, uint len1, const mp_obj_t *items2, uint len2); mp_obj_t mp_seq_index_obj(const mp_obj_t *items, uint len, uint n_args, const mp_obj_t *args); mp_obj_t mp_seq_count_obj(const mp_obj_t *items, uint len, mp_obj_t value); +mp_obj_t mp_seq_extract_slice(uint len, const mp_obj_t *seq, mp_bound_slice_t *indexes); // Helper to clear stale pointers from allocated, but unused memory, to preclude GC problems #define mp_seq_clear(start, len, alloc_len, item_sz) memset((byte*)(start) + (len) * (item_sz), 0, ((alloc_len) - (len)) * (item_sz)) #define mp_seq_replace_slice_no_grow(dest, dest_len, beg, end, slice, slice_len, item_t) \ |