0b7a66ab97
This optimises (in speed and code size) for the common case where the binary op for the bool object is supported. Unsupported binary ops still behave the same.
106 lines
3.6 KiB
C
106 lines
3.6 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/obj.h"
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#include "py/runtime0.h"
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#include "py/runtime.h"
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typedef struct _mp_obj_bool_t {
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mp_obj_base_t base;
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bool value;
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} mp_obj_bool_t;
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STATIC void bool_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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mp_obj_bool_t *self = self_in;
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if (MICROPY_PY_UJSON && kind == PRINT_JSON) {
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if (self->value) {
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mp_print_str(print, "true");
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} else {
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mp_print_str(print, "false");
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}
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} else {
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if (self->value) {
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mp_print_str(print, "True");
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} else {
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mp_print_str(print, "False");
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}
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}
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}
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STATIC mp_obj_t bool_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
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(void)type_in;
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mp_arg_check_num(n_args, n_kw, 0, 1, false);
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switch (n_args) {
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case 0:
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return mp_const_false;
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case 1:
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default: // must be 0 or 1
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if (mp_obj_is_true(args[0])) { return mp_const_true; } else { return mp_const_false; }
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}
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}
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STATIC mp_obj_t bool_unary_op(mp_uint_t op, mp_obj_t o_in) {
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mp_int_t value = ((mp_obj_bool_t*)o_in)->value;
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switch (op) {
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case MP_UNARY_OP_BOOL: return o_in;
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// needs to hash to the same value as if converting to an integer
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case MP_UNARY_OP_HASH: return MP_OBJ_NEW_SMALL_INT(value);
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case MP_UNARY_OP_POSITIVE: return MP_OBJ_NEW_SMALL_INT(value);
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case MP_UNARY_OP_NEGATIVE: return MP_OBJ_NEW_SMALL_INT(-value);
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case MP_UNARY_OP_INVERT: return MP_OBJ_NEW_SMALL_INT(~value);
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// only bool needs to implement MP_UNARY_OP_NOT
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case MP_UNARY_OP_NOT:
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if (value) {
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return mp_const_false;
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} else {
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return mp_const_true;
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}
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default: return MP_OBJ_NULL; // op not supported
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}
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}
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STATIC mp_obj_t bool_binary_op(mp_uint_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
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mp_obj_bool_t *self = lhs_in;
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return mp_binary_op(op, MP_OBJ_NEW_SMALL_INT(self->value), rhs_in);
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}
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const mp_obj_type_t mp_type_bool = {
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{ &mp_type_type },
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.name = MP_QSTR_bool,
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.print = bool_print,
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.make_new = bool_make_new,
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.unary_op = bool_unary_op,
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.binary_op = bool_binary_op,
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};
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const mp_obj_bool_t mp_const_false_obj = {{&mp_type_bool}, false};
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const mp_obj_bool_t mp_const_true_obj = {{&mp_type_bool}, true};
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