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       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                 :        697 : static void none_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
      38                 :        697 :     (void)self_in;
      39         [ +  + ]:        697 :     if (MICROPY_PY_JSON && kind == PRINT_JSON) {
      40                 :         64 :         mp_print_str(print, "null");
      41                 :            :     } else {
      42                 :        633 :         mp_print_str(print, "None");
      43                 :            :     }
      44                 :        697 : }
      45                 :            : 
      46                 :            : MP_DEFINE_CONST_OBJ_TYPE(
      47                 :            :     mp_type_NoneType,
      48                 :            :     MP_QSTR_NoneType,
      49                 :            :     MP_TYPE_FLAG_NONE,
      50                 :            :     print, none_print
      51                 :            :     );
      52                 :            : 
      53                 :            : #if !MICROPY_OBJ_IMMEDIATE_OBJS
      54                 :            : const mp_obj_none_t mp_const_none_obj = {{&mp_type_NoneType}};
      55                 :            : #endif