1/*
2 * This file is part of the MicroPython project, http://micropython.org/
3 *
4 * The MIT License (MIT)
5 *
6 * Copyright (c) 2013, 2014 Damien P. George
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 */
26
27#include "py/obj.h"
28
29typedef struct _mp_obj_cell_t {
30 mp_obj_base_t base;
31 mp_obj_t obj;
32} mp_obj_cell_t;
33
34mp_obj_t mp_obj_cell_get(mp_obj_t self_in) {
35 mp_obj_cell_t *self = MP_OBJ_TO_PTR(self_in);
36 return self->obj;
37}
38
39void mp_obj_cell_set(mp_obj_t self_in, mp_obj_t obj) {
40 mp_obj_cell_t *self = MP_OBJ_TO_PTR(self_in);
41 self->obj = obj;
42}
43
44#if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_DETAILED
45STATIC void cell_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
46 (void)kind;
47 mp_obj_cell_t *o = MP_OBJ_TO_PTR(o_in);
48 mp_printf(print, "<cell %p ", o->obj);
49 if (o->obj == MP_OBJ_NULL) {
50 mp_print_str(print, "(nil)");
51 } else {
52 mp_obj_print_helper(print, o->obj, PRINT_REPR);
53 }
54 mp_print_str(print, ">");
55}
56#endif
57
58STATIC const mp_obj_type_t mp_type_cell = {
59 { &mp_type_type },
60 .name = MP_QSTR_, // cell representation is just value in < >
61 #if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_DETAILED
62 .print = cell_print,
63 #endif
64};
65
66mp_obj_t mp_obj_new_cell(mp_obj_t obj) {
67 mp_obj_cell_t *o = m_new_obj(mp_obj_cell_t);
68 o->base.type = &mp_type_cell;
69 o->obj = obj;
70 return MP_OBJ_FROM_PTR(o);
71}
72