74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
/* SPDX-License-Identifier: BSL-1.0 OR BSD-3-Clause */
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#ifndef MPT_JSON_JSON_HPP
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#define MPT_JSON_JSON_HPP
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#include "mpt/base/detect.hpp"
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#include "mpt/detect/nlohmann_json.hpp"
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#if MPT_DETECTED_NLOHMANN_JSON
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#include "mpt/string/types.hpp"
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#include "mpt/string_transcode/transcode.hpp"
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#endif // MPT_DETECTED_NLOHMANN_JSON
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#if MPT_DETECTED_NLOHMANN_JSON
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#include <optional>
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#endif // MPT_DETECTED_NLOHMANN_JSON
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#if MPT_DETECTED_NLOHMANN_JSON
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#include <nlohmann/json.hpp>
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#endif // MPT_DETECTED_NLOHMANN_JSON
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namespace nlohmann {
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template <>
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struct adl_serializer<mpt::ustring> {
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static void to_json(json & j, const mpt::ustring & val) {
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j = mpt::transcode<std::string>(mpt::common_encoding::utf8, val);
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}
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static void from_json(const json & j, mpt::ustring & val) {
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val = mpt::transcode<mpt::ustring>(mpt::common_encoding::utf8, j.get<std::string>());
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}
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};
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template <typename Tvalue>
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struct adl_serializer<std::map<mpt::ustring, Tvalue>> {
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static void to_json(json & j, const std::map<mpt::ustring, Tvalue> & val) {
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std::map<std::string, Tvalue> utf8map;
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for (const auto & value : val)
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{
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utf8map[mpt::transcode<std::string>(mpt::common_encoding::utf8, value.first)] = value.second;
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}
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j = std::move(utf8map);
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}
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static void from_json(const json & j, std::map<mpt::ustring, Tvalue> & val) {
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std::map<std::string, Tvalue> utf8map = j.get<std::map<std::string, Tvalue>>();
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std::map<mpt::ustring, Tvalue> result;
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for (const auto & value : utf8map)
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{
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result[mpt::transcode<mpt::ustring>(mpt::common_encoding::utf8, value.first)] = value.second;
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}
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val = std::move(result);
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}
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};
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template <typename Tvalue>
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struct adl_serializer<std::optional<Tvalue>> {
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static void to_json(json & j, const std::optional<Tvalue> & val) {
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j = (val ? json{*val} : json{nullptr});
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}
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static void from_json(const json & j, std::optional<Tvalue> & val) {
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if (!j.is_null())
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{
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val = j.get<Tvalue>();
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} else
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{
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val = std::nullopt;
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}
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}
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};
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} // namespace nlohmann
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#endif // MPT_JSON_JSON_HPP
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