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Implement slicing for lists.

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This commit is contained in:
Paul Sokolovsky
2014-02-02 03:32:55 +02:00
parent 7364af2d8c
commit 13cfabd1b2
3 changed files with 14 additions and 1 deletions
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10
py/objlist.c
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@@ -136,7 +136,15 @@ static mp_obj_t list_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
switch (op) {
case RT_BINARY_OP_SUBSCR:
{
// list load
#if MICROPY_ENABLE_SLICE
if (MP_OBJ_IS_TYPE(rhs, &slice_type)) {
machine_uint_t start, stop;
assert(m_seq_get_fast_slice_indexes(o->len, rhs, &start, &stop));
mp_obj_list_t *res = list_new(stop - start);
m_seq_copy(res->items, o->items + start, res->len, mp_obj_t);
return res;
}
#endif
uint index = mp_get_index(o->base.type, o->len, rhs);
return o->items[index];
}