1/*
2 * Copyright (c) 2021 - 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include "number.h"
17#include "lexer/lexer.h"
18
19#include <cstdint>
20#include <cstdlib>
21#include <cerrno>
22#include <limits>
23
24namespace ark::es2panda::lexer {
25// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init,bugprone-exception-escape)
26Number::Number(util::StringView str, const std::string &utf8, NumberFlags flags) noexcept : str_(str), flags_(flags)
27{
28    Lexer::ConversionResult res;
29    if ((flags & (NumberFlags::DECIMAL_POINT | NumberFlags::EXPONENT)) == 0) {
30        const int64_t temp = Lexer::StrToNumeric(&std::strtoll, utf8.c_str(), res, 10);
31
32        if (res == Lexer::ConversionResult::SUCCESS) {
33            if (temp <= std::numeric_limits<int32_t>::max() && temp >= std::numeric_limits<int32_t>::min()) {
34                num_ = static_cast<int32_t>(temp);
35                return;
36            }
37
38            num_ = temp;
39            return;
40        }
41        if (res == Lexer::ConversionResult::INVALID_ARGUMENT) {
42            flags_ |= NumberFlags::ERROR;
43        }
44    }
45
46    const double temp = Lexer::StrToNumeric(&std::strtod, utf8.c_str(), res);
47    if (res == Lexer::ConversionResult::SUCCESS) {
48        num_ = temp;
49    } else if (res == Lexer::ConversionResult::INVALID_ARGUMENT) {
50        flags_ |= NumberFlags::ERROR;
51    } else if (res == Lexer::ConversionResult::OUT_OF_RANGE) {
52        num_ = std::numeric_limits<double>::infinity();
53    }
54}
55}  // namespace ark::es2panda::lexer
56