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micropython/py/objdict.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2014-2017 Paul Sokolovsky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <string.h>
#include <assert.h>
#include "py/runtime.h"
#include "py/builtin.h"
#include "py/objtype.h"
#include "py/objstr.h"
bool mp_obj_is_dict_or_ordereddict(mp_obj_t o) {
return mp_obj_is_obj(o) && MP_OBJ_TYPE_GET_SLOT_OR_NULL(((mp_obj_base_t *)MP_OBJ_TO_PTR(o))->type, make_new) == mp_obj_dict_make_new;
}
const mp_obj_dict_t mp_const_empty_dict_obj = {
.base = { .type = &mp_type_dict },
.map = {
.all_keys_are_qstrs = 0,
.is_fixed = 1,
.is_ordered = 1,
.used = 0,
.alloc = 0,
.table = NULL,
}
};
STATIC mp_obj_t dict_update(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs);
// This is a helper function to iterate through a dictionary. The state of
// the iteration is held in *cur and should be initialised with zero for the
// first call. Will return NULL when no more elements are available.
STATIC mp_map_elem_t *dict_iter_next(mp_obj_dict_t *dict, size_t *cur) {
size_t max = dict->map.alloc;
mp_map_t *map = &dict->map;
size_t i = *cur;
for (; i < max; i++) {
if (mp_map_slot_is_filled(map, i)) {
*cur = i + 1;
return &(map->table[i]);
}
}
assert(map->used == 0 || i == max);
return NULL;
}
STATIC void dict_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
bool first = true;
const char *item_separator = ", ";
const char *key_separator = ": ";
if (!(MICROPY_PY_JSON && kind == PRINT_JSON)) {
kind = PRINT_REPR;
} else {
#if MICROPY_PY_JSON_SEPARATORS
item_separator = MP_PRINT_GET_EXT(print)->item_separator;
key_separator = MP_PRINT_GET_EXT(print)->key_separator;
#endif
}
if (MICROPY_PY_COLLECTIONS_ORDEREDDICT && self->base.type != &mp_type_dict && kind != PRINT_JSON) {
mp_printf(print, "%q(", self->base.type->name);
}
mp_print_str(print, "{");
size_t cur = 0;
mp_map_elem_t *next = NULL;
while ((next = dict_iter_next(self, &cur)) != NULL) {
if (!first) {
mp_print_str(print, item_separator);
}
first = false;
bool add_quote = MICROPY_PY_JSON && kind == PRINT_JSON && !mp_obj_is_str_or_bytes(next->key);
if (add_quote) {
mp_print_str(print, "\"");
}
mp_obj_print_helper(print, next->key, kind);
if (add_quote) {
mp_print_str(print, "\"");
}
mp_print_str(print, key_separator);
mp_obj_print_helper(print, next->value, kind);
}
mp_print_str(print, "}");
if (MICROPY_PY_COLLECTIONS_ORDEREDDICT && self->base.type != &mp_type_dict && kind != PRINT_JSON) {
mp_print_str(print, ")");
}
}
mp_obj_t mp_obj_dict_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_obj_t dict_out = mp_obj_new_dict(0);
mp_obj_dict_t *dict = MP_OBJ_TO_PTR(dict_out);
dict->base.type = type;
#if MICROPY_PY_COLLECTIONS_ORDEREDDICT
if (type == &mp_type_ordereddict) {
dict->map.is_ordered = 1;
}
#endif
if (n_args > 0 || n_kw > 0) {
mp_obj_t args2[2] = {dict_out, args[0]}; // args[0] is always valid, even if it's not a positional arg
mp_map_t kwargs;
mp_map_init_fixed_table(&kwargs, n_kw, args + n_args);
dict_update(n_args + 1, args2, &kwargs); // dict_update will check that n_args + 1 == 1 or 2
}
return dict_out;
}
STATIC mp_obj_t dict_unary_op(mp_unary_op_t op, mp_obj_t self_in) {
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
switch (op) {
case MP_UNARY_OP_BOOL:
return mp_obj_new_bool(self->map.used != 0);
case MP_UNARY_OP_LEN:
return MP_OBJ_NEW_SMALL_INT(self->map.used);
#if MICROPY_PY_SYS_GETSIZEOF
case MP_UNARY_OP_SIZEOF: {
size_t sz = sizeof(*self) + sizeof(*self->map.table) * self->map.alloc;
return MP_OBJ_NEW_SMALL_INT(sz);
}
#endif
default:
return MP_OBJ_NULL; // op not supported
}
}
STATIC mp_obj_t dict_binary_op(mp_binary_op_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
mp_obj_dict_t *o = MP_OBJ_TO_PTR(lhs_in);
switch (op) {
case MP_BINARY_OP_CONTAINS: {
mp_map_elem_t *elem = mp_map_lookup(&o->map, rhs_in, MP_MAP_LOOKUP);
return mp_obj_new_bool(elem != NULL);
}
case MP_BINARY_OP_EQUAL: {
#if MICROPY_PY_COLLECTIONS_ORDEREDDICT
if (MP_UNLIKELY(mp_obj_is_type(lhs_in, &mp_type_ordereddict) && mp_obj_is_type(rhs_in, &mp_type_ordereddict))) {
// Iterate through both dictionaries simultaneously and compare keys and values.
mp_obj_dict_t *rhs = MP_OBJ_TO_PTR(rhs_in);
size_t c1 = 0, c2 = 0;
mp_map_elem_t *e1 = dict_iter_next(o, &c1), *e2 = dict_iter_next(rhs, &c2);
for (; e1 != NULL && e2 != NULL; e1 = dict_iter_next(o, &c1), e2 = dict_iter_next(rhs, &c2)) {
if (!mp_obj_equal(e1->key, e2->key) || !mp_obj_equal(e1->value, e2->value)) {
return mp_const_false;
}
}
return e1 == NULL && e2 == NULL ? mp_const_true : mp_const_false;
}
#endif
if (mp_obj_is_type(rhs_in, &mp_type_dict)) {
mp_obj_dict_t *rhs = MP_OBJ_TO_PTR(rhs_in);
if (o->map.used != rhs->map.used) {
return mp_const_false;
}
size_t cur = 0;
mp_map_elem_t *next = NULL;
while ((next = dict_iter_next(o, &cur)) != NULL) {
mp_map_elem_t *elem = mp_map_lookup(&rhs->map, next->key, MP_MAP_LOOKUP);
if (elem == NULL || !mp_obj_equal(next->value, elem->value)) {
return mp_const_false;
}
}
return mp_const_true;
} else {
// dict is not equal to instance of any other type
return mp_const_false;
}
}
#if MICROPY_CPYTHON_COMPAT
case MP_BINARY_OP_INPLACE_OR:
case MP_BINARY_OP_OR: {
if (op == MP_BINARY_OP_OR) {
lhs_in = mp_obj_dict_copy(lhs_in);
}
mp_obj_t dicts[2] = {lhs_in, rhs_in};
dict_update(2, dicts, (mp_map_t *)&mp_const_empty_map);
return lhs_in;
}
#endif
default:
// op not supported
return MP_OBJ_NULL;
}
}
// Note: Make sure this is inlined in load part of dict_subscr() below.
mp_obj_t mp_obj_dict_get(mp_obj_t self_in, mp_obj_t index) {
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
mp_map_elem_t *elem = mp_map_lookup(&self->map, index, MP_MAP_LOOKUP);
if (elem == NULL) {
mp_raise_type_arg(&mp_type_KeyError, index);
} else {
return elem->value;
}
}
STATIC mp_obj_t dict_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
if (value == MP_OBJ_NULL) {
// delete
mp_obj_dict_delete(self_in, index);
return mp_const_none;
} else if (value == MP_OBJ_SENTINEL) {
// load
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
mp_map_elem_t *elem = mp_map_lookup(&self->map, index, MP_MAP_LOOKUP);
if (elem == NULL) {
mp_raise_type_arg(&mp_type_KeyError, index);
} else {
return elem->value;
}
} else {
// store
mp_obj_dict_store(self_in, index, value);
return mp_const_none;
}
}
/******************************************************************************/
/* dict methods */
STATIC void mp_ensure_not_fixed(const mp_obj_dict_t *dict) {
if (dict->map.is_fixed) {
mp_raise_TypeError(NULL);
}
}
STATIC mp_obj_t dict_clear(mp_obj_t self_in) {
mp_check_self(mp_obj_is_dict_or_ordereddict(self_in));
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
mp_ensure_not_fixed(self);
mp_map_clear(&self->map);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_clear_obj, dict_clear);
mp_obj_t mp_obj_dict_copy(mp_obj_t self_in) {
mp_check_self(mp_obj_is_dict_or_ordereddict(self_in));
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
mp_obj_t other_out = mp_obj_new_dict(self->map.alloc);
mp_obj_dict_t *other = MP_OBJ_TO_PTR(other_out);
other->base.type = self->base.type;
other->map.used = self->map.used;
other->map.all_keys_are_qstrs = self->map.all_keys_are_qstrs;
other->map.is_fixed = 0;
other->map.is_ordered = self->map.is_ordered;
memcpy(other->map.table, self->map.table, self->map.alloc * sizeof(mp_map_elem_t));
return other_out;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_copy_obj, mp_obj_dict_copy);
#if MICROPY_PY_BUILTINS_DICT_FROMKEYS
// this is a classmethod
STATIC mp_obj_t dict_fromkeys(size_t n_args, const mp_obj_t *args) {
mp_obj_t iter = mp_getiter(args[1], NULL);
mp_obj_t value = mp_const_none;
mp_obj_t next = MP_OBJ_NULL;
if (n_args > 2) {
value = args[2];
}
// optimisation to allocate result based on len of argument
mp_obj_t self_out;
mp_obj_t len = mp_obj_len_maybe(args[1]);
if (len == MP_OBJ_NULL) {
/* object's type doesn't have a __len__ slot */
self_out = mp_obj_new_dict(0);
} else {
self_out = mp_obj_new_dict(MP_OBJ_SMALL_INT_VALUE(len));
}
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_out);
while ((next = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
mp_map_lookup(&self->map, next, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
}
return self_out;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_fromkeys_fun_obj, 2, 3, dict_fromkeys);
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(dict_fromkeys_obj, MP_ROM_PTR(&dict_fromkeys_fun_obj));
#endif
STATIC mp_obj_t dict_get_helper(size_t n_args, const mp_obj_t *args, mp_map_lookup_kind_t lookup_kind) {
mp_check_self(mp_obj_is_dict_or_ordereddict(args[0]));
mp_obj_dict_t *self = MP_OBJ_TO_PTR(args[0]);
if (lookup_kind != MP_MAP_LOOKUP) {
mp_ensure_not_fixed(self);
}
mp_map_elem_t *elem = mp_map_lookup(&self->map, args[1], lookup_kind);
mp_obj_t value;
if (elem == NULL || elem->value == MP_OBJ_NULL) {
if (n_args == 2) {
if (lookup_kind == MP_MAP_LOOKUP_REMOVE_IF_FOUND) {
mp_raise_type_arg(&mp_type_KeyError, args[1]);
} else {
value = mp_const_none;
}
} else {
value = args[2];
}
if (lookup_kind == MP_MAP_LOOKUP_ADD_IF_NOT_FOUND) {
elem->value = value;
}
} else {
value = elem->value;
if (lookup_kind == MP_MAP_LOOKUP_REMOVE_IF_FOUND) {
elem->value = MP_OBJ_NULL; // so that GC can collect the deleted value
}
}
return value;
}
STATIC mp_obj_t dict_get(size_t n_args, const mp_obj_t *args) {
return dict_get_helper(n_args, args, MP_MAP_LOOKUP);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_get_obj, 2, 3, dict_get);
STATIC mp_obj_t dict_pop(size_t n_args, const mp_obj_t *args) {
return dict_get_helper(n_args, args, MP_MAP_LOOKUP_REMOVE_IF_FOUND);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_pop_obj, 2, 3, dict_pop);
STATIC mp_obj_t dict_setdefault(size_t n_args, const mp_obj_t *args) {
return dict_get_helper(n_args, args, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_setdefault_obj, 2, 3, dict_setdefault);
STATIC mp_obj_t dict_popitem(mp_obj_t self_in) {
mp_check_self(mp_obj_is_dict_or_ordereddict(self_in));
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
mp_ensure_not_fixed(self);
if (self->map.used == 0) {
mp_raise_msg(&mp_type_KeyError, MP_ERROR_TEXT("popitem(): dictionary is empty"));
}
size_t cur = 0;
#if MICROPY_PY_COLLECTIONS_ORDEREDDICT
if (self->map.is_ordered) {
cur = self->map.used - 1;
}
#endif
mp_map_elem_t *next = dict_iter_next(self, &cur);
assert(next);
self->map.used--;
mp_obj_t items[] = {next->key, next->value};
next->key = MP_OBJ_SENTINEL; // must mark key as sentinel to indicate that it was deleted
next->value = MP_OBJ_NULL;
mp_obj_t tuple = mp_obj_new_tuple(2, items);
return tuple;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_popitem_obj, dict_popitem);
STATIC mp_obj_t dict_update(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
mp_check_self(mp_obj_is_dict_or_ordereddict(args[0]));
mp_obj_dict_t *self = MP_OBJ_TO_PTR(args[0]);
mp_ensure_not_fixed(self);
mp_arg_check_num(n_args, kwargs->used, 1, 2, true);
if (n_args == 2) {
// given a positional argument
if (mp_obj_is_dict_or_ordereddict(args[1])) {
// update from other dictionary (make sure other is not self)
if (args[1] != args[0]) {
size_t cur = 0;
mp_map_elem_t *elem = NULL;
while ((elem = dict_iter_next((mp_obj_dict_t *)MP_OBJ_TO_PTR(args[1]), &cur)) != NULL) {
mp_map_lookup(&self->map, elem->key, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = elem->value;
}
}
} else {
// update from a generic iterable of pairs
mp_obj_t iter = mp_getiter(args[1], NULL);
mp_obj_t next = MP_OBJ_NULL;
while ((next = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
mp_obj_t inneriter = mp_getiter(next, NULL);
mp_obj_t key = mp_iternext(inneriter);
mp_obj_t value = mp_iternext(inneriter);
mp_obj_t stop = mp_iternext(inneriter);
if (key == MP_OBJ_STOP_ITERATION
|| value == MP_OBJ_STOP_ITERATION
|| stop != MP_OBJ_STOP_ITERATION) {
mp_raise_ValueError(MP_ERROR_TEXT("dict update sequence has wrong length"));
} else {
mp_map_lookup(&self->map, key, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
}
}
}
}
// update the dict with any keyword args
for (size_t i = 0; i < kwargs->alloc; i++) {
if (mp_map_slot_is_filled(kwargs, i)) {
mp_map_lookup(&self->map, kwargs->table[i].key, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = kwargs->table[i].value;
}
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(dict_update_obj, 1, dict_update);
/******************************************************************************/
/* dict views */
STATIC const mp_obj_type_t mp_type_dict_view;
STATIC const mp_obj_type_t mp_type_dict_view_it;
typedef enum _mp_dict_view_kind_t {
MP_DICT_VIEW_ITEMS,
MP_DICT_VIEW_KEYS,
MP_DICT_VIEW_VALUES,
} mp_dict_view_kind_t;
STATIC const char *const mp_dict_view_names[] = {"dict_items", "dict_keys", "dict_values"};
typedef struct _mp_obj_dict_view_it_t {
mp_obj_base_t base;
mp_dict_view_kind_t kind;
mp_obj_t dict;
size_t cur;
} mp_obj_dict_view_it_t;
typedef struct _mp_obj_dict_view_t {
mp_obj_base_t base;
mp_obj_t dict;
mp_dict_view_kind_t kind;
} mp_obj_dict_view_t;
STATIC mp_obj_t dict_view_it_iternext(mp_obj_t self_in) {
mp_check_self(mp_obj_is_type(self_in, &mp_type_dict_view_it));
mp_obj_dict_view_it_t *self = MP_OBJ_TO_PTR(self_in);
mp_map_elem_t *next = dict_iter_next(MP_OBJ_TO_PTR(self->dict), &self->cur);
if (next == NULL) {
return MP_OBJ_STOP_ITERATION;
} else {
switch (self->kind) {
case MP_DICT_VIEW_ITEMS:
default: {
mp_obj_t items[] = {next->key, next->value};
return mp_obj_new_tuple(2, items);
}
case MP_DICT_VIEW_KEYS:
return next->key;
case MP_DICT_VIEW_VALUES:
return next->value;
}
}
}
STATIC MP_DEFINE_CONST_OBJ_TYPE(
mp_type_dict_view_it,
MP_QSTR_iterator,
MP_TYPE_FLAG_ITER_IS_ITERNEXT,
iter, dict_view_it_iternext
);
STATIC mp_obj_t dict_view_getiter(mp_obj_t view_in, mp_obj_iter_buf_t *iter_buf) {
assert(sizeof(mp_obj_dict_view_it_t) <= sizeof(mp_obj_iter_buf_t));
mp_check_self(mp_obj_is_type(view_in, &mp_type_dict_view));
mp_obj_dict_view_t *view = MP_OBJ_TO_PTR(view_in);
mp_obj_dict_view_it_t *o = (mp_obj_dict_view_it_t *)iter_buf;
o->base.type = &mp_type_dict_view_it;
o->kind = view->kind;
o->dict = view->dict;
o->cur = 0;
return MP_OBJ_FROM_PTR(o);
}
STATIC void dict_view_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
(void)kind;
mp_check_self(mp_obj_is_type(self_in, &mp_type_dict_view));
mp_obj_dict_view_t *self = MP_OBJ_TO_PTR(self_in);
bool first = true;
mp_print_str(print, mp_dict_view_names[self->kind]);
mp_print_str(print, "([");
mp_obj_iter_buf_t iter_buf;
mp_obj_t self_iter = dict_view_getiter(self_in, &iter_buf);
mp_obj_t next = MP_OBJ_NULL;
while ((next = dict_view_it_iternext(self_iter)) != MP_OBJ_STOP_ITERATION) {
if (!first) {
mp_print_str(print, ", ");
}
first = false;
mp_obj_print_helper(print, next, PRINT_REPR);
}
mp_print_str(print, "])");
}
STATIC mp_obj_t dict_view_unary_op(mp_unary_op_t op, mp_obj_t o_in) {
mp_obj_dict_view_t *o = MP_OBJ_TO_PTR(o_in);
// only dict.values() supports __hash__.
if (op == MP_UNARY_OP_HASH && o->kind == MP_DICT_VIEW_VALUES) {
return MP_OBJ_NEW_SMALL_INT((mp_uint_t)o_in);
}
return MP_OBJ_NULL;
}
STATIC mp_obj_t dict_view_binary_op(mp_binary_op_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
// only supported for the 'keys' kind until sets and dicts are refactored
mp_obj_dict_view_t *o = MP_OBJ_TO_PTR(lhs_in);
if (o->kind != MP_DICT_VIEW_KEYS) {
return MP_OBJ_NULL; // op not supported
}
if (op != MP_BINARY_OP_CONTAINS) {
return MP_OBJ_NULL; // op not supported
}
return dict_binary_op(op, o->dict, rhs_in);
}
STATIC MP_DEFINE_CONST_OBJ_TYPE(
mp_type_dict_view,
MP_QSTR_dict_view,
MP_TYPE_FLAG_ITER_IS_GETITER,
print, dict_view_print,
unary_op, dict_view_unary_op,
binary_op, dict_view_binary_op,
iter, dict_view_getiter
);
STATIC mp_obj_t mp_obj_new_dict_view(mp_obj_t dict, mp_dict_view_kind_t kind) {
mp_obj_dict_view_t *o = mp_obj_malloc(mp_obj_dict_view_t, &mp_type_dict_view);
o->dict = dict;
o->kind = kind;
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t dict_view(mp_obj_t self_in, mp_dict_view_kind_t kind) {
mp_check_self(mp_obj_is_dict_or_ordereddict(self_in));
return mp_obj_new_dict_view(self_in, kind);
}
STATIC mp_obj_t dict_items(mp_obj_t self_in) {
return dict_view(self_in, MP_DICT_VIEW_ITEMS);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_items_obj, dict_items);
STATIC mp_obj_t dict_keys(mp_obj_t self_in) {
return dict_view(self_in, MP_DICT_VIEW_KEYS);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_keys_obj, dict_keys);
STATIC mp_obj_t dict_values(mp_obj_t self_in) {
return dict_view(self_in, MP_DICT_VIEW_VALUES);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_values_obj, dict_values);
/******************************************************************************/
/* dict iterator */
STATIC mp_obj_t dict_getiter(mp_obj_t self_in, mp_obj_iter_buf_t *iter_buf) {
assert(sizeof(mp_obj_dict_view_it_t) <= sizeof(mp_obj_iter_buf_t));
mp_check_self(mp_obj_is_dict_or_ordereddict(self_in));
mp_obj_dict_view_it_t *o = (mp_obj_dict_view_it_t *)iter_buf;
o->base.type = &mp_type_dict_view_it;
o->kind = MP_DICT_VIEW_KEYS;
o->dict = self_in;
o->cur = 0;
return MP_OBJ_FROM_PTR(o);
}
/******************************************************************************/
/* dict constructors & public C API */
STATIC const mp_rom_map_elem_t dict_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_clear), MP_ROM_PTR(&dict_clear_obj) },
{ MP_ROM_QSTR(MP_QSTR_copy), MP_ROM_PTR(&dict_copy_obj) },
#if MICROPY_PY_BUILTINS_DICT_FROMKEYS
{ MP_ROM_QSTR(MP_QSTR_fromkeys), MP_ROM_PTR(&dict_fromkeys_obj) },
#endif
{ MP_ROM_QSTR(MP_QSTR_get), MP_ROM_PTR(&dict_get_obj) },
{ MP_ROM_QSTR(MP_QSTR_items), MP_ROM_PTR(&dict_items_obj) },
{ MP_ROM_QSTR(MP_QSTR_keys), MP_ROM_PTR(&dict_keys_obj) },
{ MP_ROM_QSTR(MP_QSTR_pop), MP_ROM_PTR(&dict_pop_obj) },
{ MP_ROM_QSTR(MP_QSTR_popitem), MP_ROM_PTR(&dict_popitem_obj) },
{ MP_ROM_QSTR(MP_QSTR_setdefault), MP_ROM_PTR(&dict_setdefault_obj) },
{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&dict_update_obj) },
{ MP_ROM_QSTR(MP_QSTR_values), MP_ROM_PTR(&dict_values_obj) },
{ MP_ROM_QSTR(MP_QSTR___getitem__), MP_ROM_PTR(&mp_op_getitem_obj) },
{ MP_ROM_QSTR(MP_QSTR___setitem__), MP_ROM_PTR(&mp_op_setitem_obj) },
{ MP_ROM_QSTR(MP_QSTR___delitem__), MP_ROM_PTR(&mp_op_delitem_obj) },
};
STATIC MP_DEFINE_CONST_DICT(dict_locals_dict, dict_locals_dict_table);
MP_DEFINE_CONST_OBJ_TYPE(
mp_type_dict,
MP_QSTR_dict,
MP_TYPE_FLAG_ITER_IS_GETITER,
make_new, mp_obj_dict_make_new,
print, dict_print,
unary_op, dict_unary_op,
binary_op, dict_binary_op,
subscr, dict_subscr,
iter, dict_getiter,
locals_dict, &dict_locals_dict
);
#if MICROPY_PY_COLLECTIONS_ORDEREDDICT
MP_DEFINE_CONST_OBJ_TYPE(
mp_type_ordereddict,
MP_QSTR_OrderedDict,
MP_TYPE_FLAG_ITER_IS_GETITER,
make_new, mp_obj_dict_make_new,
print, dict_print,
unary_op, dict_unary_op,
binary_op, dict_binary_op,
subscr, dict_subscr,
iter, dict_getiter,
parent, &mp_type_dict,
locals_dict, &dict_locals_dict
);
#endif
void mp_obj_dict_init(mp_obj_dict_t *dict, size_t n_args) {
dict->base.type = &mp_type_dict;
mp_map_init(&dict->map, n_args);
}
mp_obj_t mp_obj_new_dict(size_t n_args) {
mp_obj_dict_t *o = m_new_obj(mp_obj_dict_t);
mp_obj_dict_init(o, n_args);
return MP_OBJ_FROM_PTR(o);
}
size_t mp_obj_dict_len(mp_obj_t self_in) {
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
return self->map.used;
}
mp_obj_t mp_obj_dict_store(mp_obj_t self_in, mp_obj_t key, mp_obj_t value) {
mp_check_self(mp_obj_is_dict_or_ordereddict(self_in));
mp_obj_dict_t *self = MP_OBJ_TO_PTR(self_in);
mp_ensure_not_fixed(self);
mp_map_lookup(&self->map, key, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
return self_in;
}
mp_obj_t mp_obj_dict_delete(mp_obj_t self_in, mp_obj_t key) {
mp_obj_t args[2] = {self_in, key};
dict_get_helper(2, args, MP_MAP_LOOKUP_REMOVE_IF_FOUND);
return self_in;
}
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