141 lines
3.7 KiB
C
141 lines
3.7 KiB
C
#include <stdlib.h>
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#include <stdint.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 "runtime.h"
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#include "map.h"
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typedef struct _mp_obj_set_t {
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mp_obj_base_t base;
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mp_set_t set;
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} mp_obj_set_t;
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typedef struct _mp_obj_set_it_t {
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mp_obj_base_t base;
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mp_obj_set_t *set;
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machine_uint_t cur;
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} mp_obj_set_it_t;
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static mp_obj_t set_it_iternext(mp_obj_t self_in);
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void set_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in) {
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mp_obj_set_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->set.alloc; i++) {
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if (self->set.table[i] != MP_OBJ_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->set.table[i]);
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}
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}
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print(env, "}");
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}
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static mp_obj_t set_make_new(mp_obj_t type_in, int n_args, const mp_obj_t *args) {
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switch (n_args) {
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case 0:
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// return a new, empty set
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return mp_obj_new_set(0, NULL);
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case 1:
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{
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// 1 argument, an iterable from which we make a new set
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mp_obj_t set = mp_obj_new_set(0, NULL);
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mp_obj_t iterable = rt_getiter(args[0]);
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mp_obj_t item;
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while ((item = rt_iternext(iterable)) != mp_const_stop_iteration) {
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mp_obj_set_store(set, item);
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}
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return set;
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}
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default:
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nlr_jump(mp_obj_new_exception_msg_1_arg(MP_QSTR_TypeError, "set takes at most 1 argument, %d given", (void*)(machine_int_t)n_args));
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}
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}
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const mp_obj_type_t set_it_type = {
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{ &mp_const_type },
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"set_iterator",
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.iternext = set_it_iternext,
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};
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static mp_obj_t set_it_iternext(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &set_it_type));
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mp_obj_set_it_t *self = self_in;
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machine_uint_t max = self->set->set.alloc;
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mp_obj_t *table = self->set->set.table;
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for (machine_uint_t i = self->cur; i < max; i++) {
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if (table[i] != NULL) {
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self->cur = i + 1;
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return table[i];
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}
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}
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return mp_const_stop_iteration;
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}
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static mp_obj_t set_getiter(mp_obj_t set_in) {
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mp_obj_set_it_t *o = m_new_obj(mp_obj_set_it_t);
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o->base.type = &set_it_type;
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o->set = (mp_obj_set_t *)set_in;
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o->cur = 0;
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return o;
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}
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/******************************************************************************/
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/* set methods */
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static mp_obj_t set_add(mp_obj_t self_in, mp_obj_t item) {
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assert(MP_OBJ_IS_TYPE(self_in, &set_type));
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mp_obj_set_t *self = self_in;
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mp_set_lookup(&self->set, item, true);
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return mp_const_none;
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}
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static MP_DEFINE_CONST_FUN_OBJ_2(set_add_obj, set_add);
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/******************************************************************************/
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/* set constructors & public C API */
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static const mp_method_t set_type_methods[] = {
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{ "add", &set_add_obj },
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{ NULL, NULL }, // end-of-list sentinel
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};
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const mp_obj_type_t set_type = {
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{ &mp_const_type },
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"set",
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.print = set_print,
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.make_new = set_make_new,
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.getiter = set_getiter,
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.methods = set_type_methods,
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};
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mp_obj_t mp_obj_new_set(int n_args, mp_obj_t *items) {
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mp_obj_set_t *o = m_new_obj(mp_obj_set_t);
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o->base.type = &set_type;
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mp_set_init(&o->set, n_args);
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for (int i = 0; i < n_args; i++) {
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mp_set_lookup(&o->set, items[i], true);
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}
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return o;
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}
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void mp_obj_set_store(mp_obj_t self_in, mp_obj_t item) {
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assert(MP_OBJ_IS_TYPE(self_in, &set_type));
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mp_obj_set_t *self = self_in;
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mp_set_lookup(&self->set, item, true);
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}
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