mirror of
https://github.com/licsber/micropython.git
synced 2024-09-20 00:50:24 +08:00
c2a4e4effc
Hashing is now done using mp_unary_op function with MP_UNARY_OP_HASH as the operator argument. Hashing for int, str and bytes still go via fast-path in mp_unary_op since they are the most common objects which need to be hashed. This lead to quite a bit of code cleanup, and should be more efficient if anything. It saves 176 bytes code space on Thumb2, and 360 bytes on x86. The only loss is that the error message "unhashable type" is now the more generic "unsupported type for __hash__".
63 lines
2.1 KiB
C
63 lines
2.1 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(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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(void)self_in;
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if (MICROPY_PY_UJSON && kind == PRINT_JSON) {
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mp_print_str(print, "null");
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} else {
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mp_print_str(print, "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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(void)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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case MP_UNARY_OP_HASH: return MP_OBJ_NEW_SMALL_INT((mp_uint_t)o_in);
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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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