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
24 namespace panda::es2panda::lexer {
25 // NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init,bugprone-exception-escape)
Number(util::StringView str,const std::string & utf8,NumberFlags flags)26 Number::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 panda::es2panda::lexer
56