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Merge pull request #58 from chipaca/list_clear

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Added list.clear. Fixes issue #53.
This commit is contained in:
Damien George 2014-01-03 16:54:30 -08:00
commit 9ba9589ef7
2 changed files with 15 additions and 0 deletions
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11
py/objlist.c
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@ -125,7 +125,17 @@ static mp_obj_t list_sort(mp_obj_t self_in, mp_obj_t key_fn) {
return mp_const_none; // return None, as per CPython
}
static mp_obj_t list_clear(mp_obj_t self_in) {
assert(MP_OBJ_IS_TYPE(self_in, &list_type));
mp_obj_list_t *self = self_in;
self->len = 0;
self->items = m_renew(mp_obj_t, self->items, self->alloc, 4);
self->alloc = 4;
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_2(list_append_obj, mp_obj_list_append);
static MP_DEFINE_CONST_FUN_OBJ_1(list_clear_obj, list_clear);
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(list_pop_obj, 1, 2, list_pop);
static MP_DEFINE_CONST_FUN_OBJ_2(list_sort_obj, list_sort);
@ -140,6 +150,7 @@ const mp_obj_type_t list_type = {
NULL, // iternext
{ // method list
{ "append", &list_append_obj },
{ "clear", &list_clear_obj },
{ "pop", &list_pop_obj },
{ "sort", &list_sort_obj },
{ NULL, NULL }, // end-of-list sentinel

4
tests/basics/tests/list_clear.py Normal file
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@ -0,0 +1,4 @@
# tests list.clear
x = [1, 2, 3, 4]
x.clear()
print(x)