100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <assert.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.h"
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#include "mpqstr.h"
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#include "obj.h"
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#include "runtime0.h"
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#include "runtime.h"
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#include "map.h"
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typedef struct _mp_obj_dict_t {
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mp_obj_base_t base;
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mp_map_t map;
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} mp_obj_dict_t;
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static void dict_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in) {
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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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for (int i = 0; i < self->map.alloc; i++) {
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if (self->map.table[i].key != NULL) {
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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, self->map.table[i].key);
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print(env, ": ");
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mp_obj_print_helper(print, env, self->map.table[i].value);
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}
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}
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print(env, "}");
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}
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// args are reverse in the array
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static mp_obj_t dict_make_new(mp_obj_t type_in, int n_args, const mp_obj_t *args) {
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// TODO create from an iterable!
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return rt_build_map(0);
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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 RT_BINARY_OP_SUBSCR:
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{
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// dict load
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mp_map_elem_t *elem = mp_map_lookup_helper(&o->map, rhs_in, false);
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if (elem == NULL) {
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nlr_jump(mp_obj_new_exception_msg(MP_QSTR_KeyError, "<value>"));
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} else {
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return elem->value;
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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 NULL;
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}
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}
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const mp_obj_type_t dict_type = {
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{ &mp_const_type },
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"dict",
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dict_print, // print
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dict_make_new, // make_new
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NULL, // call_n
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NULL, // unary_op
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dict_binary_op, // binary_op
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NULL, // getiter
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NULL, // iternext
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{{NULL, NULL},}, // method list
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};
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mp_obj_t mp_obj_new_dict(int n_args) {
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mp_obj_dict_t *o = m_new_obj(mp_obj_dict_t);
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o->base.type = &dict_type;
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mp_map_init(&o->map, MP_MAP_OBJ, n_args);
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return o;
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}
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uint mp_obj_dict_len(mp_obj_t self_in) {
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mp_obj_dict_t *self = self_in;
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uint len = 0;
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for (int i = 0; i < self->map.alloc; i++) {
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if (self->map.table[i].key != NULL) {
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len += 1;
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}
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}
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return len;
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}
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mp_obj_t mp_obj_dict_store(mp_obj_t self_in, mp_obj_t key, mp_obj_t value) {
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assert(MP_OBJ_IS_TYPE(self_in, &dict_type));
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mp_obj_dict_t *self = self_in;
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mp_map_lookup_helper(&self->map, key, true)->value = value;
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return self_in;
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}
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