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 <stdlib.h>
28
29#include "py/runtime.h"
30
31#if MICROPY_OBJ_IMMEDIATE_OBJS
32
33#define BOOL_VALUE(o) ((o) == mp_const_false ? 0 : 1)
34
35#else
36
37#define BOOL_VALUE(o) (((mp_obj_bool_t *)MP_OBJ_TO_PTR(o))->value)
38
39typedef struct _mp_obj_bool_t {
40 mp_obj_base_t base;
41 bool value;
42} mp_obj_bool_t;
43
44#endif
45
46STATIC void bool_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
47 bool value = BOOL_VALUE(self_in);
48 if (MICROPY_PY_UJSON && kind == PRINT_JSON) {
49 if (value) {
50 mp_print_str(print, "true");
51 } else {
52 mp_print_str(print, "false");
53 }
54 } else {
55 if (value) {
56 mp_print_str(print, "True");
57 } else {
58 mp_print_str(print, "False");
59 }
60 }
61}
62
63STATIC mp_obj_t bool_make_new(const mp_obj_type_t *type_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
64 (void)type_in;
65 mp_arg_check_num(n_args, n_kw, 0, 1, false);
66
67 if (n_args == 0) {
68 return mp_const_false;
69 } else {
70 return mp_obj_new_bool(mp_obj_is_true(args[0]));
71 }
72}
73
74STATIC mp_obj_t bool_unary_op(mp_unary_op_t op, mp_obj_t o_in) {
75 if (op == MP_UNARY_OP_LEN) {
76 return MP_OBJ_NULL;
77 }
78 bool value = BOOL_VALUE(o_in);
79 return mp_unary_op(op, MP_OBJ_NEW_SMALL_INT(value));
80}
81
82STATIC mp_obj_t bool_binary_op(mp_binary_op_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
83 bool value = BOOL_VALUE(lhs_in);
84 return mp_binary_op(op, MP_OBJ_NEW_SMALL_INT(value), rhs_in);
85}
86
87const mp_obj_type_t mp_type_bool = {
88 { &mp_type_type },
89 .flags = MP_TYPE_FLAG_EQ_CHECKS_OTHER_TYPE, // can match all numeric types
90 .name = MP_QSTR_bool,
91 .print = bool_print,
92 .make_new = bool_make_new,
93 .unary_op = bool_unary_op,
94 .binary_op = bool_binary_op,
95};
96
97#if !MICROPY_OBJ_IMMEDIATE_OBJS
98const mp_obj_bool_t mp_const_false_obj = {{&mp_type_bool}, false};
99const mp_obj_bool_t mp_const_true_obj = {{&mp_type_bool}, true};
100#endif
101