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Diffstat (limited to 'circuitpython/py/objdict.c')
| -rw-r--r-- | circuitpython/py/objdict.c | 658 |
1 files changed, 658 insertions, 0 deletions
diff --git a/circuitpython/py/objdict.c b/circuitpython/py/objdict.c new file mode 100644 index 0000000..5f23374 --- /dev/null +++ b/circuitpython/py/objdict.c @@ -0,0 +1,658 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * SPDX-FileCopyrightText: Copyright (c) 2013, 2014 Damien P. George + * SPDX-FileCopyrightText: 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" + +#include "supervisor/linker.h" +#include "supervisor/shared/translate.h" + +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_UJSON && kind == PRINT_JSON)) { + kind = PRINT_REPR; + } else { + #if MICROPY_PY_UJSON_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_UJSON && 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; + } + } + 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_varg(&mp_type_KeyError, MP_ERROR_TEXT("pop from empty %q"), MP_QSTR_dict); + } + 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 const mp_obj_type_t mp_type_dict_view_it = { + { &mp_type_type }, + .flags = MP_TYPE_FLAG_EXTENDED, + .name = MP_QSTR_iterator, + MP_TYPE_EXTENDED_FIELDS( + .getiter = mp_identity_getiter, + .iternext = 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_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 const mp_obj_type_t mp_type_dict_view = { + { &mp_type_type }, + .flags = MP_TYPE_FLAG_EXTENDED, + .name = MP_QSTR_dict_view, + .print = dict_view_print, + MP_TYPE_EXTENDED_FIELDS( + .binary_op = dict_view_binary_op, + .getiter = 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 = m_new_obj(mp_obj_dict_view_t); + o->base.type = &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); + +const mp_obj_type_t mp_type_dict = { + { &mp_type_type }, + .flags = MP_TYPE_FLAG_EXTENDED, + .name = MP_QSTR_dict, + .print = dict_print, + .make_new = mp_obj_dict_make_new, + .locals_dict = (mp_obj_dict_t *)&dict_locals_dict, + MP_TYPE_EXTENDED_FIELDS( + .unary_op = dict_unary_op, + .binary_op = dict_binary_op, + .subscr = dict_subscr, + .getiter = dict_getiter, + ), +}; + +#if MICROPY_PY_COLLECTIONS_ORDEREDDICT +const mp_obj_type_t mp_type_ordereddict = { + { &mp_type_type }, + .flags = MP_TYPE_FLAG_EXTENDED, + .name = MP_QSTR_OrderedDict, + .print = dict_print, + .make_new = mp_obj_dict_make_new, + .parent = &mp_type_dict, + .locals_dict = (mp_obj_dict_t *)&dict_locals_dict, + MP_TYPE_EXTENDED_FIELDS( + .unary_op = dict_unary_op, + .binary_op = dict_binary_op, + .subscr = dict_subscr, + .getiter = dict_getiter, + ), +}; +#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; +} |