87 lines
3.3 KiB
C
87 lines
3.3 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2015 Paul Sokolovsky
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "py/runtime.h"
|
|
|
|
// This is universal iterator type which calls "iternext" method stored in
|
|
// particular object instance. (So, each instance of this time can have its
|
|
// own iteration behavior.) Having this type saves to define type objects
|
|
// for various internal iterator objects.
|
|
|
|
// Any instance should have these 2 fields at the beginning
|
|
typedef struct _mp_obj_polymorph_iter_t {
|
|
mp_obj_base_t base;
|
|
mp_fun_1_t iternext;
|
|
} mp_obj_polymorph_iter_t;
|
|
|
|
STATIC mp_obj_t polymorph_it_iternext(mp_obj_t self_in) {
|
|
mp_obj_polymorph_iter_t *self = MP_OBJ_TO_PTR(self_in);
|
|
// Redirect call to object instance's iternext method
|
|
return self->iternext(self_in);
|
|
}
|
|
|
|
MP_DEFINE_CONST_OBJ_TYPE(
|
|
mp_type_polymorph_iter,
|
|
MP_QSTR_iterator,
|
|
MP_TYPE_FLAG_ITER_IS_ITERNEXT,
|
|
iter, polymorph_it_iternext
|
|
);
|
|
|
|
#if MICROPY_ENABLE_FINALISER
|
|
// mp_type_polymorph_iter_with_finaliser is a variant of the universal iterator
|
|
// above which has a finaliser function attached. This function will be run when
|
|
// the GC collects the iter object and can be used to close file handles etc.
|
|
|
|
// Any instance should have these 3 fields at the beginning
|
|
typedef struct _mp_obj_polymorph_iter_with_finaliser_t {
|
|
mp_obj_base_t base;
|
|
mp_fun_1_t iternext;
|
|
mp_fun_1_t finaliser;
|
|
} mp_obj_polymorph_with_finaliser_iter_t;
|
|
|
|
STATIC mp_obj_t mp_obj_polymorph_iter_del(mp_obj_t self_in) {
|
|
mp_obj_polymorph_with_finaliser_iter_t *self = MP_OBJ_TO_PTR(self_in);
|
|
// Redirect call to object instance's finaliser method
|
|
return self->finaliser(self_in);
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_obj_polymorph_iter_del_obj, mp_obj_polymorph_iter_del);
|
|
|
|
STATIC const mp_rom_map_elem_t mp_obj_polymorph_iter_locals_dict_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&mp_obj_polymorph_iter_del_obj) },
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(mp_obj_polymorph_iter_locals_dict, mp_obj_polymorph_iter_locals_dict_table);
|
|
|
|
MP_DEFINE_CONST_OBJ_TYPE(
|
|
mp_type_polymorph_iter_with_finaliser,
|
|
MP_QSTR_iterator,
|
|
MP_TYPE_FLAG_ITER_IS_ITERNEXT,
|
|
iter, polymorph_it_iternext,
|
|
locals_dict, &mp_obj_polymorph_iter_locals_dict
|
|
);
|
|
#endif
|