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-rw-r--r--thirdparty/rapidjson/istreamwrapper.h115
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diff --git a/thirdparty/rapidjson/istreamwrapper.h b/thirdparty/rapidjson/istreamwrapper.h
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-// Tencent is pleased to support the open source community by making RapidJSON available.
-//
-// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
-//
-// Licensed under the MIT License (the "License"); you may not use this file except
-// in compliance with the License. You may obtain a copy of the License at
-//
-// http://opensource.org/licenses/MIT
-//
-// Unless required by applicable law or agreed to in writing, software distributed
-// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the
-// specific language governing permissions and limitations under the License.
-
-#ifndef RAPIDJSON_ISTREAMWRAPPER_H_
-#define RAPIDJSON_ISTREAMWRAPPER_H_
-
-#include "stream.h"
-#include <iosfwd>
-
-#ifdef __clang__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(padded)
-#endif
-
-#ifdef _MSC_VER
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(4351) // new behavior: elements of array 'array' will be default initialized
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Wrapper of \c std::basic_istream into RapidJSON's Stream concept.
-/*!
- The classes can be wrapped including but not limited to:
-
- - \c std::istringstream
- - \c std::stringstream
- - \c std::wistringstream
- - \c std::wstringstream
- - \c std::ifstream
- - \c std::fstream
- - \c std::wifstream
- - \c std::wfstream
-
- \tparam StreamType Class derived from \c std::basic_istream.
-*/
-
-template <typename StreamType>
-class BasicIStreamWrapper {
-public:
- typedef typename StreamType::char_type Ch;
- BasicIStreamWrapper(StreamType& stream) : stream_(stream), count_(), peekBuffer_() {}
-
- Ch Peek() const {
- typename StreamType::int_type c = stream_.peek();
- return RAPIDJSON_LIKELY(c != StreamType::traits_type::eof()) ? static_cast<Ch>(c) : '\0';
- }
-
- Ch Take() {
- typename StreamType::int_type c = stream_.get();
- if (RAPIDJSON_LIKELY(c != StreamType::traits_type::eof())) {
- count_++;
- return static_cast<Ch>(c);
- }
- else
- return '\0';
- }
-
- // tellg() may return -1 when failed. So we count by ourself.
- size_t Tell() const { return count_; }
-
- Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
- void Put(Ch) { RAPIDJSON_ASSERT(false); }
- void Flush() { RAPIDJSON_ASSERT(false); }
- size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
- // For encoding detection only.
- const Ch* Peek4() const {
- RAPIDJSON_ASSERT(sizeof(Ch) == 1); // Only usable for byte stream.
- int i;
- bool hasError = false;
- for (i = 0; i < 4; ++i) {
- typename StreamType::int_type c = stream_.get();
- if (c == StreamType::traits_type::eof()) {
- hasError = true;
- stream_.clear();
- break;
- }
- peekBuffer_[i] = static_cast<Ch>(c);
- }
- for (--i; i >= 0; --i)
- stream_.putback(peekBuffer_[i]);
- return !hasError ? peekBuffer_ : 0;
- }
-
-private:
- BasicIStreamWrapper(const BasicIStreamWrapper&);
- BasicIStreamWrapper& operator=(const BasicIStreamWrapper&);
-
- StreamType& stream_;
- size_t count_; //!< Number of characters read. Note:
- mutable Ch peekBuffer_[4];
-};
-
-typedef BasicIStreamWrapper<std::istream> IStreamWrapper;
-typedef BasicIStreamWrapper<std::wistream> WIStreamWrapper;
-
-#if defined(__clang__) || defined(_MSC_VER)
-RAPIDJSON_DIAG_POP
-#endif
-
-RAPIDJSON_NAMESPACE_END
-
-#endif // RAPIDJSON_ISTREAMWRAPPER_H_