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Added dict.copy

This commit is contained in:
John R. Lenton 2014-01-06 18:11:20 +00:00
parent 7d21d516d2
commit d90b19eca5
2 changed files with 15 additions and 0 deletions
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10
py/objdict.c
View File

@ -130,6 +130,15 @@ static mp_obj_t dict_clear(mp_obj_t self_in) {
}
static MP_DEFINE_CONST_FUN_OBJ_1(dict_clear_obj, dict_clear);
static mp_obj_t dict_copy(mp_obj_t self_in) {
assert(MP_OBJ_IS_TYPE(self_in, &dict_type));
mp_obj_dict_t *self = self_in;
mp_obj_dict_t *other = mp_obj_new_dict(self->map.alloc);
other->map.used = self->map.used;
memcpy(other->map.table, self->map.table, self->map.alloc * sizeof(mp_map_elem_t));
return other;
}
static MP_DEFINE_CONST_FUN_OBJ_1(dict_copy_obj, dict_copy);
/******************************************************************************/
/* dict constructors & etc */
@ -143,6 +152,7 @@ const mp_obj_type_t dict_type = {
.getiter = dict_getiter,
.methods = {
{ "clear", &dict_clear_obj },
{ "copy", &dict_copy_obj },
{ NULL, NULL }, // end-of-list sentinel
},
};

5
tests/basics/tests/dict_copy.py Normal file
View File

@ -0,0 +1,5 @@
a = {i: 2*i for i in range(1000)}
b = a.copy()
for i in range(1000):
print(i, b[i])
print(len(b))