kopia lustrzana https://github.com/micropython/micropython
60 wiersze
1.4 KiB
C
60 wiersze
1.4 KiB
C
#include <stdlib.h>
|
|
#include <assert.h>
|
|
|
|
#include "misc.h"
|
|
#include "mpconfig.h"
|
|
#include "qstr.h"
|
|
#include "obj.h"
|
|
#include "runtime.h"
|
|
|
|
typedef struct _mp_obj_zip_t {
|
|
mp_obj_base_t base;
|
|
int n_iters;
|
|
mp_obj_t iters[];
|
|
} mp_obj_zip_t;
|
|
|
|
STATIC mp_obj_t zip_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
|
|
// TODO check n_kw == 0
|
|
|
|
mp_obj_zip_t *o = m_new_obj_var(mp_obj_zip_t, mp_obj_t, n_args);
|
|
o->base.type = &zip_type;
|
|
o->n_iters = n_args;
|
|
for (int i = 0; i < n_args; i++) {
|
|
o->iters[i] = rt_getiter(args[i]);
|
|
}
|
|
return o;
|
|
}
|
|
|
|
STATIC mp_obj_t zip_getiter(mp_obj_t self_in) {
|
|
return self_in;
|
|
}
|
|
|
|
STATIC mp_obj_t zip_iternext(mp_obj_t self_in) {
|
|
assert(MP_OBJ_IS_TYPE(self_in, &zip_type));
|
|
mp_obj_zip_t *self = self_in;
|
|
mp_obj_t *items;
|
|
if (self->n_iters == 0) {
|
|
return mp_const_stop_iteration;
|
|
}
|
|
mp_obj_t o = mp_obj_new_tuple(self->n_iters, NULL);
|
|
mp_obj_tuple_get(o, NULL, &items);
|
|
|
|
for (int i = 0; i < self->n_iters; i++) {
|
|
mp_obj_t next = rt_iternext(self->iters[i]);
|
|
if (next == mp_const_stop_iteration) {
|
|
mp_obj_tuple_del(o);
|
|
return mp_const_stop_iteration;
|
|
}
|
|
items[i] = next;
|
|
}
|
|
return o;
|
|
}
|
|
|
|
const mp_obj_type_t zip_type = {
|
|
{ &mp_const_type },
|
|
"zip",
|
|
.make_new = zip_make_new,
|
|
.getiter = zip_getiter,
|
|
.iternext = zip_iternext,
|
|
};
|