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https://github.com/licsber/micropython.git
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c5966128c7
Each built-in exception is now a type, with base type BaseException. C exceptions are created by passing a pointer to the exception type to make an instance of. When raising an exception from the VM, an instance is created automatically if an exception type is raised (as opposed to an exception instance). Exception matching (RT_BINARY_OP_EXCEPTION_MATCH) is now proper. Handling of parse error changed to match new exceptions. mp_const_type renamed to mp_type_type for consistency.
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
#include <stdlib.h>
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#include <stdint.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 "qstr.h"
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#include "obj.h"
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/******************************************************************************/
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/* range */
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typedef struct _mp_obj_range_t {
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mp_obj_base_t base;
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// TODO make these values generic objects or something
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machine_int_t start;
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machine_int_t stop;
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machine_int_t step;
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} mp_obj_range_t;
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STATIC mp_obj_t range_getiter(mp_obj_t o_in) {
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mp_obj_range_t *o = o_in;
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return mp_obj_new_range_iterator(o->start, o->stop, o->step);
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}
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STATIC const mp_obj_type_t range_type = {
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{ &mp_type_type} ,
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.name = MP_QSTR_range,
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.getiter = range_getiter,
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};
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// range is a class and instances are immutable sequence objects
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mp_obj_t mp_obj_new_range(int start, int stop, int step) {
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mp_obj_range_t *o = m_new_obj(mp_obj_range_t);
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o->base.type = &range_type;
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o->start = start;
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o->stop = stop;
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o->step = step;
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return o;
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}
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/******************************************************************************/
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/* range iterator */
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typedef struct _mp_obj_range_it_t {
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mp_obj_base_t base;
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// TODO make these values generic objects or something
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machine_int_t cur;
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machine_int_t stop;
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machine_int_t step;
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} mp_obj_range_it_t;
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STATIC mp_obj_t range_it_iternext(mp_obj_t o_in) {
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mp_obj_range_it_t *o = o_in;
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if ((o->step > 0 && o->cur < o->stop) || (o->step < 0 && o->cur > o->stop)) {
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mp_obj_t o_out = MP_OBJ_NEW_SMALL_INT(o->cur);
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o->cur += o->step;
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return o_out;
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} else {
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return mp_const_stop_iteration;
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}
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}
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STATIC const mp_obj_type_t range_it_type = {
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{ &mp_type_type },
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.name = MP_QSTR_iterator,
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.iternext = range_it_iternext,
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};
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mp_obj_t mp_obj_new_range_iterator(int cur, int stop, int step) {
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mp_obj_range_it_t *o = m_new_obj(mp_obj_range_it_t);
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o->base.type = &range_it_type;
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o->cur = cur;
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o->stop = stop;
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o->step = step;
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return o;
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}
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