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Implemented list.copy. Fixes issue #54.

This commit is contained in:
John R. Lenton 2014-01-03 23:42:17 +00:00
parent 069ded9514
commit 26c211648b
2 changed files with 15 additions and 0 deletions
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8
py/objlist.c
View File

@ -134,8 +134,15 @@ static mp_obj_t list_clear(mp_obj_t self_in) {
return mp_const_none; return mp_const_none;
} }
static mp_obj_t list_copy(mp_obj_t self_in) {
assert(MP_OBJ_IS_TYPE(self_in, &list_type));
mp_obj_list_t *self = self_in;
return mp_obj_new_list(self->len, self->items);
}
static MP_DEFINE_CONST_FUN_OBJ_2(list_append_obj, mp_obj_list_append); 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_1(list_clear_obj, list_clear);
static MP_DEFINE_CONST_FUN_OBJ_1(list_copy_obj, list_copy);
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(list_pop_obj, 1, 2, list_pop); 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); static MP_DEFINE_CONST_FUN_OBJ_2(list_sort_obj, list_sort);
@ -151,6 +158,7 @@ const mp_obj_type_t list_type = {
{ // method list { // method list
{ "append", &list_append_obj }, { "append", &list_append_obj },
{ "clear", &list_clear_obj }, { "clear", &list_clear_obj },
{ "copy", &list_copy_obj },
{ "pop", &list_pop_obj }, { "pop", &list_pop_obj },
{ "sort", &list_sort_obj }, { "sort", &list_sort_obj },
{ NULL, NULL }, // end-of-list sentinel { NULL, NULL }, // end-of-list sentinel

7
tests/basics/tests/list_copy.py Normal file
View File

@ -0,0 +1,7 @@
# list copy tests
a = [1, 2, []]
b = a.copy()
a[-1].append(1)
a.append(4)
print(a)
print(b)