60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdlib.h>
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#include "py/nlr.h"
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#include "py/obj.h"
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#include "py/runtime0.h"
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typedef struct _mp_obj_none_t {
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mp_obj_base_t base;
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} mp_obj_none_t;
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STATIC void none_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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if (MICROPY_PY_UJSON && kind == PRINT_JSON) {
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print(env, "null");
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} else {
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print(env, "None");
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}
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}
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STATIC mp_obj_t none_unary_op(mp_uint_t op, mp_obj_t o_in) {
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switch (op) {
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case MP_UNARY_OP_BOOL: return mp_const_false;
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default: return MP_OBJ_NULL; // op not supported
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}
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}
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const mp_obj_type_t mp_type_NoneType = {
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{ &mp_type_type },
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.name = MP_QSTR_NoneType,
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.print = none_print,
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.unary_op = none_unary_op,
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};
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const mp_obj_none_t mp_const_none_obj = {{&mp_type_NoneType}};
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