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/obj.h" |
30 | |
31 | #if !MICROPY_OBJ_IMMEDIATE_OBJS |
32 | typedef struct _mp_obj_none_t { |
33 | mp_obj_base_t base; |
34 | } mp_obj_none_t; |
35 | #endif |
36 | |
37 | STATIC void none_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { |
38 | (void)self_in; |
39 | if (MICROPY_PY_UJSON && kind == PRINT_JSON) { |
40 | mp_print_str(print, "null" ); |
41 | } else { |
42 | mp_print_str(print, "None" ); |
43 | } |
44 | } |
45 | |
46 | const mp_obj_type_t mp_type_NoneType = { |
47 | { &mp_type_type }, |
48 | .name = MP_QSTR_NoneType, |
49 | .print = none_print, |
50 | .unary_op = mp_generic_unary_op, |
51 | }; |
52 | |
53 | #if !MICROPY_OBJ_IMMEDIATE_OBJS |
54 | const mp_obj_none_t mp_const_none_obj = {{&mp_type_NoneType}}; |
55 | #endif |
56 | |