Commit 9ed54350 authored by Paul Sokolovsky's avatar Paul Sokolovsky
Browse files

Implement slicing for tuples.

parent 13cfabd1
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <assert.h>
......@@ -87,7 +88,15 @@ static mp_obj_t tuple_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
switch (op) {
case RT_BINARY_OP_SUBSCR:
{
// tuple 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_tuple_t *res = mp_obj_new_tuple(stop - start, NULL);
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];
}
......
# basic tuple functionality
x = (1, 2, 3 * 4)
print(x)
try:
x[0] = 4
except TypeError:
print("TypeError")
print(x)
try:
x.append(5)
except AttributeError:
print("AttributeError")
print(x[1:])
print(x[:-1])
print(x[2:3])
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