mirror of
https://github.com/openharmony/ark_js_runtime.git
synced 2026-07-25 22:15:32 -04:00
hjzhangcm
110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ECMASCRIPT_MEM_C_STRING_H
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#define ECMASCRIPT_MEM_C_STRING_H
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#include <sstream>
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#include <string>
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#include <string_view>
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#include "ecmascript/common.h"
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#include "ecmascript/mem/caddress_allocator.h"
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namespace panda::ecmascript {
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class EcmaString;
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class JSTaggedValue;
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using CString = std::basic_string<char, std::char_traits<char>, CAddressAllocator<char>>;
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using CStringStream = std::basic_stringstream<char, std::char_traits<char>, CAddressAllocator<char>>;
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struct CStringHash {
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using argument_type = panda::ecmascript::CString;
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using result_type = std::size_t;
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size_t operator()(const CString &str) const noexcept
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{
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return std::hash<std::string_view>()(std::string_view(str.data(), str.size()));
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}
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};
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constexpr int BASE = 10;
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// PRINT will skip '\0' in utf16 during conversion of utf8
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enum StringConvertedUsage { PRINT, LOGICOPERATION };
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long CStringToL(const CString &str);
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int64_t CStringToLL(const CString &str);
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uint64_t CStringToULL(const CString &str);
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float CStringToF(const CString &str);
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double CStringToD(const CString &str);
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CString ConvertToString(const std::string &str);
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std::string CstringConvertToStdString(const CString &str);
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// '\u0000' is skip according to holdZero
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CString ConvertToString(const ecmascript::EcmaString *s, StringConvertedUsage usage = StringConvertedUsage::PRINT);
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CString ConvertToString(ecmascript::JSTaggedValue key);
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template<class T>
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std::enable_if_t<std::is_floating_point_v<T>, CString> FloatToCString(T number)
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{
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CStringStream strStream;
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strStream << number;
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return strStream.str();
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}
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template<class T>
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std::enable_if_t<std::is_integral_v<T>, CString> ToCString(T number)
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{
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if (number == 0) {
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return CString("0");
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}
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bool IsNeg = false;
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if (number < 0) {
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number = -number;
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IsNeg = true;
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}
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static constexpr uint32_t BUFF_SIZE = std::numeric_limits<T>::digits10 + 3; // 3: Reserved for sign bit and '\0'.
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char buf[BUFF_SIZE];
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uint32_t position = BUFF_SIZE - 1;
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buf[position] = '\0';
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while (number > 0) {
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buf[--position] = static_cast<int8_t>(number % 10 + '0'); // 10 : decimal
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number /= 10; // 10 : decimal
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}
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if (IsNeg) {
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buf[--position] = '-';
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}
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return CString(&buf[position]);
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}
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} // namespace panda::ecmascript
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namespace std {
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template <>
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struct hash<panda::ecmascript::CString> {
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using argument_type = panda::ecmascript::CStringHash::argument_type;
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using result_type = panda::ecmascript::CStringHash::result_type;
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size_t operator()(const panda::ecmascript::CString &str) const noexcept
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{
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return panda::ecmascript::CStringHash()(str);
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}
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};
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} // namespace std
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#endif // ECMASCRIPT_MEM_C_STRING_H
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