553 lines
18 KiB
C
553 lines
18 KiB
C
#include <stdbool.h>
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#include <string.h>
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#include <assert.h>
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#include "mpconfig.h"
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#include "nlr.h"
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#include "misc.h"
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#include "qstr.h"
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#include "obj.h"
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#include "objtuple.h"
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#include "runtime0.h"
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#include "runtime.h"
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#include "builtin.h"
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STATIC mp_obj_t mp_obj_new_dict_iterator(mp_obj_dict_t *dict, int cur);
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STATIC mp_map_elem_t *dict_it_iternext_elem(mp_obj_t self_in);
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STATIC mp_obj_t dict_copy(mp_obj_t self_in);
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STATIC void dict_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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mp_obj_dict_t *self = self_in;
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bool first = true;
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print(env, "{");
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mp_obj_t *dict_iter = mp_obj_new_dict_iterator(self, 0);
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mp_map_elem_t *next = NULL;
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while ((next = dict_it_iternext_elem(dict_iter)) != MP_OBJ_STOP_ITERATION) {
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if (!first) {
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print(env, ", ");
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}
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first = false;
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mp_obj_print_helper(print, env, next->key, PRINT_REPR);
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print(env, ": ");
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mp_obj_print_helper(print, env, next->value, PRINT_REPR);
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}
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print(env, "}");
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}
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STATIC mp_obj_t dict_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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mp_obj_t dict;
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switch (n_args) {
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case 0:
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dict = mp_obj_new_dict(0);
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break;
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case 1: {
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if (MP_OBJ_IS_TYPE(args[0], &mp_type_dict)) {
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return dict_copy(args[0]);
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}
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// TODO create dict from an arbitrary mapping!
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// Make dict from iterable of pairs
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mp_obj_t iterable = mp_getiter(args[0]);
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mp_obj_t dict = mp_obj_new_dict(0);
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// TODO: support arbitrary seq as a pair
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mp_obj_t item;
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while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
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mp_obj_t *sub_items;
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mp_obj_get_array_fixed_n(item, 2, &sub_items);
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mp_obj_dict_store(dict, sub_items[0], sub_items[1]);
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}
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return dict;
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}
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default:
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "dict takes at most 1 argument"));
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}
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// add to the new dict any keyword args
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for (const mp_obj_t *a = args + n_args; n_kw > 0; n_kw--, a += 2) {
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mp_obj_dict_store(dict, a[0], a[1]);
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}
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return dict;
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}
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STATIC mp_obj_t dict_unary_op(int op, mp_obj_t self_in) {
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mp_obj_dict_t *self = self_in;
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switch (op) {
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case MP_UNARY_OP_BOOL: return MP_BOOL(self->map.used != 0);
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case MP_UNARY_OP_LEN: return MP_OBJ_NEW_SMALL_INT((machine_int_t)self->map.used);
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default: return MP_OBJ_NOT_SUPPORTED;
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}
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}
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STATIC mp_obj_t dict_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
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mp_obj_dict_t *o = lhs_in;
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switch (op) {
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case MP_BINARY_OP_IN: {
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mp_map_elem_t *elem = mp_map_lookup(&o->map, rhs_in, MP_MAP_LOOKUP);
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return MP_BOOL(elem != NULL);
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}
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case MP_BINARY_OP_EQUAL: {
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if (MP_OBJ_IS_TYPE(rhs_in, &mp_type_dict)) {
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mp_obj_dict_t *rhs = rhs_in;
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if (o->map.used != rhs->map.used) {
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return mp_const_false;
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}
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machine_uint_t size = o->map.alloc;
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mp_map_t *map = &o->map;
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for (machine_uint_t i = 0; i < size; i++) {
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if (MP_MAP_SLOT_IS_FILLED(map, i)) {
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mp_map_elem_t *elem = mp_map_lookup(&rhs->map, map->table[i].key, MP_MAP_LOOKUP);
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if (elem == NULL || !mp_obj_equal(map->table[i].value, elem->value)) {
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return mp_const_false;
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}
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}
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}
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return mp_const_true;
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} else {
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// dict is not equal to instance of any other type
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return mp_const_false;
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}
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}
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default:
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// op not supported
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return MP_OBJ_NOT_SUPPORTED;
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}
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}
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STATIC mp_obj_t dict_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
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if (value == MP_OBJ_NULL) {
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// delete
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mp_obj_dict_delete(self_in, index);
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return mp_const_none;
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} else if (value == MP_OBJ_SENTINEL) {
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// load
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mp_obj_dict_t *self = self_in;
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mp_map_elem_t *elem = mp_map_lookup(&self->map, index, MP_MAP_LOOKUP);
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if (elem == NULL) {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_KeyError, "<value>"));
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} else {
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return elem->value;
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}
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} else {
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// store
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mp_obj_dict_store(self_in, index, value);
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return mp_const_none;
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}
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}
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/******************************************************************************/
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/* dict iterator */
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typedef struct _mp_obj_dict_it_t {
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mp_obj_base_t base;
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mp_obj_dict_t *dict;
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machine_uint_t cur;
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} mp_obj_dict_it_t;
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STATIC mp_map_elem_t *dict_it_iternext_elem(mp_obj_t self_in) {
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mp_obj_dict_it_t *self = self_in;
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machine_uint_t max = self->dict->map.alloc;
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mp_map_t *map = &self->dict->map;
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for (int i = self->cur; i < max; i++) {
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if (MP_MAP_SLOT_IS_FILLED(map, i)) {
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self->cur = i + 1;
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return &(map->table[i]);
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}
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}
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return MP_OBJ_STOP_ITERATION;
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}
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mp_obj_t dict_it_iternext(mp_obj_t self_in) {
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mp_map_elem_t *next = dict_it_iternext_elem(self_in);
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if (next != MP_OBJ_STOP_ITERATION) {
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return next->key;
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} else {
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return MP_OBJ_STOP_ITERATION;
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}
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}
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STATIC const mp_obj_type_t mp_type_dict_it = {
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{ &mp_type_type },
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.name = MP_QSTR_iterator,
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.getiter = mp_identity,
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.iternext = dict_it_iternext,
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};
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STATIC mp_obj_t mp_obj_new_dict_iterator(mp_obj_dict_t *dict, int cur) {
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mp_obj_dict_it_t *o = m_new_obj(mp_obj_dict_it_t);
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o->base.type = &mp_type_dict_it;
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o->dict = dict;
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o->cur = cur;
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return o;
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}
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STATIC mp_obj_t dict_getiter(mp_obj_t o_in) {
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return mp_obj_new_dict_iterator(o_in, 0);
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}
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/******************************************************************************/
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/* dict methods */
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STATIC mp_obj_t dict_clear(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
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mp_obj_dict_t *self = self_in;
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mp_map_clear(&self->map);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_clear_obj, dict_clear);
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STATIC mp_obj_t dict_copy(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
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mp_obj_dict_t *self = self_in;
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mp_obj_dict_t *other = mp_obj_new_dict(self->map.alloc);
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other->map.used = self->map.used;
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other->map.all_keys_are_qstrs = self->map.all_keys_are_qstrs;
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other->map.table_is_fixed_array = 0;
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memcpy(other->map.table, self->map.table, self->map.alloc * sizeof(mp_map_elem_t));
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return other;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_copy_obj, dict_copy);
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// this is a classmethod
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STATIC mp_obj_t dict_fromkeys(uint n_args, const mp_obj_t *args) {
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assert(2 <= n_args && n_args <= 3);
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mp_obj_t iter = mp_getiter(args[1]);
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mp_obj_t len = mp_obj_len_maybe(iter);
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mp_obj_t value = mp_const_none;
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mp_obj_t next = NULL;
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mp_obj_dict_t *self = NULL;
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if (n_args > 2) {
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value = args[2];
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}
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if (len == MP_OBJ_NULL) {
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/* object's type doesn't have a __len__ slot */
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self = mp_obj_new_dict(0);
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} else {
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self = mp_obj_new_dict(MP_OBJ_SMALL_INT_VALUE(len));
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}
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while ((next = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
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mp_map_lookup(&self->map, next, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
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}
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return self;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_fromkeys_fun_obj, 2, 3, dict_fromkeys);
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STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(dict_fromkeys_obj, (const mp_obj_t)&dict_fromkeys_fun_obj);
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STATIC mp_obj_t dict_get_helper(mp_map_t *self, mp_obj_t key, mp_obj_t deflt, mp_map_lookup_kind_t lookup_kind) {
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mp_map_elem_t *elem = mp_map_lookup(self, key, lookup_kind);
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mp_obj_t value;
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if (elem == NULL || elem->value == NULL) {
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if (deflt == NULL) {
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if (lookup_kind == MP_MAP_LOOKUP_REMOVE_IF_FOUND) {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_KeyError, "<value>"));
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} else {
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value = mp_const_none;
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}
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} else {
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value = deflt;
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}
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} else {
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value = elem->value;
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}
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if (lookup_kind == MP_MAP_LOOKUP_ADD_IF_NOT_FOUND) {
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elem->value = value;
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}
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return value;
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}
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STATIC mp_obj_t dict_get(uint n_args, const mp_obj_t *args) {
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assert(2 <= n_args && n_args <= 3);
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assert(MP_OBJ_IS_TYPE(args[0], &mp_type_dict));
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return dict_get_helper(&((mp_obj_dict_t *)args[0])->map,
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args[1],
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n_args == 3 ? args[2] : NULL,
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MP_MAP_LOOKUP);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_get_obj, 2, 3, dict_get);
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STATIC mp_obj_t dict_pop(uint n_args, const mp_obj_t *args) {
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assert(2 <= n_args && n_args <= 3);
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assert(MP_OBJ_IS_TYPE(args[0], &mp_type_dict));
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return dict_get_helper(&((mp_obj_dict_t *)args[0])->map,
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args[1],
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n_args == 3 ? args[2] : NULL,
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MP_MAP_LOOKUP_REMOVE_IF_FOUND);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_pop_obj, 2, 3, dict_pop);
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STATIC mp_obj_t dict_setdefault(uint n_args, const mp_obj_t *args) {
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assert(2 <= n_args && n_args <= 3);
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assert(MP_OBJ_IS_TYPE(args[0], &mp_type_dict));
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return dict_get_helper(&((mp_obj_dict_t *)args[0])->map,
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args[1],
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n_args == 3 ? args[2] : NULL,
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MP_MAP_LOOKUP_ADD_IF_NOT_FOUND);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(dict_setdefault_obj, 2, 3, dict_setdefault);
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STATIC mp_obj_t dict_popitem(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
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mp_obj_dict_t *self = self_in;
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if (self->map.used == 0) {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_KeyError, "popitem(): dictionary is empty"));
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}
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mp_obj_dict_it_t *iter = mp_obj_new_dict_iterator(self, 0);
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mp_map_elem_t *next = dict_it_iternext_elem(iter);
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self->map.used--;
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mp_obj_t items[] = {next->key, next->value};
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next->key = NULL;
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next->value = NULL;
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mp_obj_t tuple = mp_obj_new_tuple(2, items);
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return tuple;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(dict_popitem_obj, dict_popitem);
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STATIC mp_obj_t dict_update(mp_obj_t self_in, mp_obj_t iterable) {
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assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
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mp_obj_dict_t *self = self_in;
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/* TODO: check for the "keys" method */
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mp_obj_t iter = mp_getiter(iterable);
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mp_obj_t next = NULL;
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while ((next = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
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mp_obj_t inneriter = mp_getiter(next);
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mp_obj_t key = mp_iternext(inneriter);
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mp_obj_t value = mp_iternext(inneriter);
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mp_obj_t stop = mp_iternext(inneriter);
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if (key == MP_OBJ_STOP_ITERATION
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|| value == MP_OBJ_STOP_ITERATION
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|| stop != MP_OBJ_STOP_ITERATION) {
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nlr_raise(mp_obj_new_exception_msg(
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&mp_type_ValueError,
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"dictionary update sequence has the wrong length"));
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} else {
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mp_map_lookup(&self->map, key, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
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}
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(dict_update_obj, dict_update);
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/******************************************************************************/
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/* dict views */
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STATIC const mp_obj_type_t dict_view_type;
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STATIC const mp_obj_type_t dict_view_it_type;
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typedef enum _mp_dict_view_kind_t {
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MP_DICT_VIEW_ITEMS,
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MP_DICT_VIEW_KEYS,
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MP_DICT_VIEW_VALUES,
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} mp_dict_view_kind_t;
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STATIC char *mp_dict_view_names[] = {"dict_items", "dict_keys", "dict_values"};
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typedef struct _mp_obj_dict_view_it_t {
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mp_obj_base_t base;
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mp_dict_view_kind_t kind;
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mp_obj_dict_it_t *iter;
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machine_uint_t cur;
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} mp_obj_dict_view_it_t;
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typedef struct _mp_obj_dict_view_t {
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mp_obj_base_t base;
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mp_obj_dict_t *dict;
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mp_dict_view_kind_t kind;
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} mp_obj_dict_view_t;
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STATIC mp_obj_t dict_view_it_iternext(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &dict_view_it_type));
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mp_obj_dict_view_it_t *self = self_in;
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mp_map_elem_t *next = dict_it_iternext_elem(self->iter);
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if (next != MP_OBJ_STOP_ITERATION) {
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switch (self->kind) {
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case MP_DICT_VIEW_ITEMS:
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{
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mp_obj_t items[] = {next->key, next->value};
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return mp_obj_new_tuple(2, items);
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}
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case MP_DICT_VIEW_KEYS:
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return next->key;
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case MP_DICT_VIEW_VALUES:
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return next->value;
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default:
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assert(0); /* can't happen */
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return mp_const_none;
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}
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} else {
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return MP_OBJ_STOP_ITERATION;
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}
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}
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STATIC const mp_obj_type_t dict_view_it_type = {
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{ &mp_type_type },
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.name = MP_QSTR_iterator,
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.getiter = mp_identity,
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.iternext = dict_view_it_iternext,
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};
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STATIC mp_obj_t dict_view_getiter(mp_obj_t view_in) {
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assert(MP_OBJ_IS_TYPE(view_in, &dict_view_type));
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mp_obj_dict_view_t *view = view_in;
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mp_obj_dict_view_it_t *o = m_new_obj(mp_obj_dict_view_it_t);
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o->base.type = &dict_view_it_type;
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o->kind = view->kind;
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o->iter = mp_obj_new_dict_iterator(view->dict, 0);
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return o;
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}
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STATIC void dict_view_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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assert(MP_OBJ_IS_TYPE(self_in, &dict_view_type));
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mp_obj_dict_view_t *self = self_in;
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bool first = true;
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print(env, mp_dict_view_names[self->kind]);
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print(env, "([");
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mp_obj_t *self_iter = dict_view_getiter(self);
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mp_obj_t *next = NULL;
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while ((next = dict_view_it_iternext(self_iter)) != MP_OBJ_STOP_ITERATION) {
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if (!first) {
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print(env, ", ");
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}
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first = false;
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mp_obj_print_helper(print, env, next, PRINT_REPR);
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}
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print(env, "])");
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}
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STATIC mp_obj_t dict_view_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
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/* only supported for the 'keys' kind until sets and dicts are refactored */
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mp_obj_dict_view_t *o = lhs_in;
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if (o->kind != MP_DICT_VIEW_KEYS) return NULL;
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if (op != MP_BINARY_OP_IN) return NULL;
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return dict_binary_op(op, o->dict, rhs_in);
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}
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STATIC const mp_obj_type_t dict_view_type = {
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{ &mp_type_type },
|
|
.name = MP_QSTR_dict_view,
|
|
.print = dict_view_print,
|
|
.binary_op = dict_view_binary_op,
|
|
.getiter = dict_view_getiter,
|
|
};
|
|
|
|
mp_obj_t mp_obj_new_dict_view(mp_obj_dict_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 = &dict_view_type;
|
|
o->dict = dict;
|
|
o->kind = kind;
|
|
return o;
|
|
}
|
|
|
|
STATIC mp_obj_t dict_view(mp_obj_t self_in, mp_dict_view_kind_t kind) {
|
|
assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
|
|
mp_obj_dict_t *self = self_in;
|
|
return mp_obj_new_dict_view(self, 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 constructors & public C API */
|
|
|
|
STATIC const mp_map_elem_t dict_locals_dict_table[] = {
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_clear), (mp_obj_t)&dict_clear_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_copy), (mp_obj_t)&dict_copy_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_fromkeys), (mp_obj_t)&dict_fromkeys_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_get), (mp_obj_t)&dict_get_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_items), (mp_obj_t)&dict_items_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_keys), (mp_obj_t)&dict_keys_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_pop), (mp_obj_t)&dict_pop_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_popitem), (mp_obj_t)&dict_popitem_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_setdefault), (mp_obj_t)&dict_setdefault_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_update), (mp_obj_t)&dict_update_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_values), (mp_obj_t)&dict_values_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR___getitem__), (mp_obj_t)&mp_op_getitem_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR___setitem__), (mp_obj_t)&mp_op_setitem_obj },
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR___delitem__), (mp_obj_t)&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 },
|
|
.name = MP_QSTR_dict,
|
|
.print = dict_print,
|
|
.make_new = dict_make_new,
|
|
.unary_op = dict_unary_op,
|
|
.binary_op = dict_binary_op,
|
|
.subscr = dict_subscr,
|
|
.getiter = dict_getiter,
|
|
.locals_dict = (mp_obj_t)&dict_locals_dict,
|
|
};
|
|
|
|
void mp_obj_dict_init(mp_obj_dict_t *dict, int n_args) {
|
|
dict->base.type = &mp_type_dict;
|
|
mp_map_init(&dict->map, n_args);
|
|
}
|
|
|
|
mp_obj_t mp_obj_new_dict(int n_args) {
|
|
mp_obj_dict_t *o = m_new_obj(mp_obj_dict_t);
|
|
mp_obj_dict_init(o, n_args);
|
|
return o;
|
|
}
|
|
|
|
uint mp_obj_dict_len(mp_obj_t self_in) {
|
|
return ((mp_obj_dict_t *)self_in)->map.used;
|
|
}
|
|
|
|
mp_obj_t mp_obj_dict_store(mp_obj_t self_in, mp_obj_t key, mp_obj_t value) {
|
|
assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
|
|
mp_obj_dict_t *self = self_in;
|
|
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) {
|
|
assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
|
|
mp_obj_dict_t *self = self_in;
|
|
dict_get_helper(&self->map, key, NULL, MP_MAP_LOOKUP_REMOVE_IF_FOUND);
|
|
return self_in;
|
|
}
|
|
|
|
mp_map_t *mp_obj_dict_get_map(mp_obj_t self_in) {
|
|
assert(MP_OBJ_IS_TYPE(self_in, &mp_type_dict));
|
|
mp_obj_dict_t *self = self_in;
|
|
return &self->map;
|
|
}
|