89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
|
#include <stdlib.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include "nlr.h"
|
||
|
|
#include "misc.h"
|
||
|
|
#include "mpconfig.h"
|
||
|
|
#include "obj.h"
|
||
|
|
|
||
|
|
/******************************************************************************/
|
||
|
|
/* range */
|
||
|
|
|
||
|
|
typedef struct _mp_obj_range_t {
|
||
|
|
mp_obj_base_t base;
|
||
|
|
// TODO make these values generic objects or something
|
||
|
|
machine_int_t start;
|
||
|
|
machine_int_t stop;
|
||
|
|
machine_int_t step;
|
||
|
|
} mp_obj_range_t;
|
||
|
|
|
||
|
|
mp_obj_t range_getiter(mp_obj_t o_in) {
|
||
|
|
mp_obj_range_t *o = o_in;
|
||
|
|
return mp_obj_new_range_iterator(o->start, o->stop, o->step);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const mp_obj_type_t range_type = {
|
||
|
|
{ &mp_const_type} ,
|
||
|
|
"range",
|
||
|
|
NULL, // print
|
||
|
|
NULL, // call_n
|
||
|
|
NULL, // unary_op
|
||
|
|
NULL, // binary_op
|
||
|
|
range_getiter,
|
||
|
|
NULL, // iternext
|
||
|
|
{{NULL, NULL},}, // method list
|
||
|
|
};
|
||
|
|
|
||
|
|
// range is a class and instances are immutable sequence objects
|
||
|
|
mp_obj_t mp_obj_new_range(int start, int stop, int step) {
|
||
|
|
mp_obj_range_t *o = m_new_obj(mp_obj_range_t);
|
||
|
|
o->base.type = &range_type;
|
||
|
|
o->start = start;
|
||
|
|
o->stop = stop;
|
||
|
|
o->step = step;
|
||
|
|
return o;
|
||
|
|
}
|
||
|
|
|
||
|
|
/******************************************************************************/
|
||
|
|
/* range iterator */
|
||
|
|
|
||
|
|
typedef struct _mp_obj_range_it_t {
|
||
|
|
mp_obj_base_t base;
|
||
|
|
// TODO make these values generic objects or something
|
||
|
|
machine_int_t cur;
|
||
|
|
machine_int_t stop;
|
||
|
|
machine_int_t step;
|
||
|
|
} mp_obj_range_it_t;
|
||
|
|
|
||
|
|
mp_obj_t range_it_iternext(mp_obj_t o_in) {
|
||
|
|
mp_obj_range_it_t *o = o_in;
|
||
|
|
if ((o->step > 0 && o->cur < o->stop) || (o->step < 0 && o->cur > o->stop)) {
|
||
|
|
mp_obj_t o_out = MP_OBJ_NEW_SMALL_INT(o->cur);
|
||
|
|
o->cur += o->step;
|
||
|
|
return o_out;
|
||
|
|
} else {
|
||
|
|
return mp_const_stop_iteration;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static const mp_obj_type_t range_it_type = {
|
||
|
|
{ &mp_const_type },
|
||
|
|
"range_iterator",
|
||
|
|
NULL, // print
|
||
|
|
NULL, // call_n
|
||
|
|
NULL, // unary_op
|
||
|
|
NULL, // binary_op
|
||
|
|
NULL, // getiter
|
||
|
|
range_it_iternext,
|
||
|
|
{{NULL, NULL},}, // method list
|
||
|
|
};
|
||
|
|
|
||
|
|
mp_obj_t mp_obj_new_range_iterator(int cur, int stop, int step) {
|
||
|
|
mp_obj_range_it_t *o = m_new_obj(mp_obj_range_it_t);
|
||
|
|
o->base.type = &range_it_type;
|
||
|
|
o->cur = cur;
|
||
|
|
o->stop = stop;
|
||
|
|
o->step = step;
|
||
|
|
return o;
|
||
|
|
}
|