Enhance CMake configuration and add nlohmann/json library files. Updated CMakeLists.txt to include the nlohmann JSON library directory. Added multiple header files for JSON serialization, deserialization, and utility functions, ensuring compatibility with the latest version 3.11.2. This update improves JSON handling capabilities in the project.
This commit is contained in:
497
include/nlohmann/detail/conversions/from_json.hpp
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497
include/nlohmann/detail/conversions/from_json.hpp
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// __ _____ _____ _____
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// __| | __| | | | JSON for Modern C++
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// | | |__ | | | | | | version 3.11.2
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// |_____|_____|_____|_|___| https://github.com/nlohmann/json
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//
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// SPDX-FileCopyrightText: 2013-2022 Niels Lohmann <https://nlohmann.me>
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// SPDX-License-Identifier: MIT
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#pragma once
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#include <algorithm> // transform
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#include <array> // array
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#include <forward_list> // forward_list
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#include <iterator> // inserter, front_inserter, end
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#include <map> // map
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#include <string> // string
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#include <tuple> // tuple, make_tuple
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#include <type_traits> // is_arithmetic, is_same, is_enum, underlying_type, is_convertible
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#include <unordered_map> // unordered_map
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#include <utility> // pair, declval
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#include <valarray> // valarray
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#include <nlohmann/detail/exceptions.hpp>
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#include <nlohmann/detail/macro_scope.hpp>
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#include <nlohmann/detail/meta/cpp_future.hpp>
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#include <nlohmann/detail/meta/identity_tag.hpp>
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#include <nlohmann/detail/meta/std_fs.hpp>
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#include <nlohmann/detail/meta/type_traits.hpp>
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#include <nlohmann/detail/string_concat.hpp>
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#include <nlohmann/detail/value_t.hpp>
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NLOHMANN_JSON_NAMESPACE_BEGIN
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namespace detail
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{
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template<typename BasicJsonType>
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inline void from_json(const BasicJsonType& j, typename std::nullptr_t& n)
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_null()))
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{
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JSON_THROW(type_error::create(302, concat("type must be null, but is ", j.type_name()), &j));
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}
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n = nullptr;
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}
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// overloads for basic_json template parameters
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template < typename BasicJsonType, typename ArithmeticType,
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enable_if_t < std::is_arithmetic<ArithmeticType>::value&&
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!std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value,
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int > = 0 >
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void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val)
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{
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switch (static_cast<value_t>(j))
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{
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case value_t::number_unsigned:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_unsigned_t*>());
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break;
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}
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case value_t::number_integer:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_integer_t*>());
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break;
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}
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case value_t::number_float:
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_float_t*>());
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break;
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}
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case value_t::null:
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case value_t::object:
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case value_t::array:
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case value_t::string:
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case value_t::boolean:
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case value_t::binary:
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case value_t::discarded:
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default:
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JSON_THROW(type_error::create(302, concat("type must be number, but is ", j.type_name()), &j));
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}
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}
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template<typename BasicJsonType>
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inline void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b)
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_boolean()))
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{
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JSON_THROW(type_error::create(302, concat("type must be boolean, but is ", j.type_name()), &j));
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}
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b = *j.template get_ptr<const typename BasicJsonType::boolean_t*>();
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}
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template<typename BasicJsonType>
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inline void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s)
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_string()))
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{
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JSON_THROW(type_error::create(302, concat("type must be string, but is ", j.type_name()), &j));
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}
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s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
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}
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template <
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typename BasicJsonType, typename StringType,
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enable_if_t <
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std::is_assignable<StringType&, const typename BasicJsonType::string_t>::value
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&& is_detected_exact<typename BasicJsonType::string_t::value_type, value_type_t, StringType>::value
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&& !std::is_same<typename BasicJsonType::string_t, StringType>::value
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&& !is_json_ref<StringType>::value, int > = 0 >
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inline void from_json(const BasicJsonType& j, StringType& s)
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_string()))
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{
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JSON_THROW(type_error::create(302, concat("type must be string, but is ", j.type_name()), &j));
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}
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s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
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}
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template<typename BasicJsonType>
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inline void from_json(const BasicJsonType& j, typename BasicJsonType::number_float_t& val)
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{
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get_arithmetic_value(j, val);
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}
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template<typename BasicJsonType>
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inline void from_json(const BasicJsonType& j, typename BasicJsonType::number_unsigned_t& val)
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{
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get_arithmetic_value(j, val);
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}
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template<typename BasicJsonType>
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inline void from_json(const BasicJsonType& j, typename BasicJsonType::number_integer_t& val)
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{
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get_arithmetic_value(j, val);
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}
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#if !JSON_DISABLE_ENUM_SERIALIZATION
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template<typename BasicJsonType, typename EnumType,
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enable_if_t<std::is_enum<EnumType>::value, int> = 0>
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inline void from_json(const BasicJsonType& j, EnumType& e)
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{
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typename std::underlying_type<EnumType>::type val;
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get_arithmetic_value(j, val);
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e = static_cast<EnumType>(val);
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}
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#endif // JSON_DISABLE_ENUM_SERIALIZATION
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// forward_list doesn't have an insert method
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template<typename BasicJsonType, typename T, typename Allocator,
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enable_if_t<is_getable<BasicJsonType, T>::value, int> = 0>
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inline void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
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{
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JSON_THROW(type_error::create(302, concat("type must be array, but is ", j.type_name()), &j));
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}
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l.clear();
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std::transform(j.rbegin(), j.rend(),
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std::front_inserter(l), [](const BasicJsonType & i)
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{
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return i.template get<T>();
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});
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}
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// valarray doesn't have an insert method
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template<typename BasicJsonType, typename T,
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enable_if_t<is_getable<BasicJsonType, T>::value, int> = 0>
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inline void from_json(const BasicJsonType& j, std::valarray<T>& l)
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
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{
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JSON_THROW(type_error::create(302, concat("type must be array, but is ", j.type_name()), &j));
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}
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l.resize(j.size());
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std::transform(j.begin(), j.end(), std::begin(l),
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[](const BasicJsonType & elem)
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{
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return elem.template get<T>();
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});
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}
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template<typename BasicJsonType, typename T, std::size_t N>
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auto from_json(const BasicJsonType& j, T (&arr)[N]) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
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-> decltype(j.template get<T>(), void())
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{
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for (std::size_t i = 0; i < N; ++i)
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{
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arr[i] = j.at(i).template get<T>();
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}
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}
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template<typename BasicJsonType>
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inline void from_json_array_impl(const BasicJsonType& j, typename BasicJsonType::array_t& arr, priority_tag<3> /*unused*/)
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{
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arr = *j.template get_ptr<const typename BasicJsonType::array_t*>();
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}
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template<typename BasicJsonType, typename T, std::size_t N>
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auto from_json_array_impl(const BasicJsonType& j, std::array<T, N>& arr,
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priority_tag<2> /*unused*/)
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-> decltype(j.template get<T>(), void())
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{
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for (std::size_t i = 0; i < N; ++i)
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{
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arr[i] = j.at(i).template get<T>();
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}
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}
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template<typename BasicJsonType, typename ConstructibleArrayType,
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enable_if_t<
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std::is_assignable<ConstructibleArrayType&, ConstructibleArrayType>::value,
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int> = 0>
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auto from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, priority_tag<1> /*unused*/)
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-> decltype(
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arr.reserve(std::declval<typename ConstructibleArrayType::size_type>()),
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j.template get<typename ConstructibleArrayType::value_type>(),
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void())
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{
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using std::end;
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ConstructibleArrayType ret;
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ret.reserve(j.size());
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std::transform(j.begin(), j.end(),
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std::inserter(ret, end(ret)), [](const BasicJsonType & i)
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{
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// get<BasicJsonType>() returns *this, this won't call a from_json
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// method when value_type is BasicJsonType
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return i.template get<typename ConstructibleArrayType::value_type>();
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});
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arr = std::move(ret);
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}
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template<typename BasicJsonType, typename ConstructibleArrayType,
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enable_if_t<
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std::is_assignable<ConstructibleArrayType&, ConstructibleArrayType>::value,
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int> = 0>
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inline void from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr,
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priority_tag<0> /*unused*/)
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{
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using std::end;
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ConstructibleArrayType ret;
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std::transform(
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j.begin(), j.end(), std::inserter(ret, end(ret)),
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[](const BasicJsonType & i)
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{
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// get<BasicJsonType>() returns *this, this won't call a from_json
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// method when value_type is BasicJsonType
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return i.template get<typename ConstructibleArrayType::value_type>();
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});
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arr = std::move(ret);
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}
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template < typename BasicJsonType, typename ConstructibleArrayType,
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enable_if_t <
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is_constructible_array_type<BasicJsonType, ConstructibleArrayType>::value&&
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!is_constructible_object_type<BasicJsonType, ConstructibleArrayType>::value&&
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!is_constructible_string_type<BasicJsonType, ConstructibleArrayType>::value&&
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!std::is_same<ConstructibleArrayType, typename BasicJsonType::binary_t>::value&&
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!is_basic_json<ConstructibleArrayType>::value,
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int > = 0 >
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auto from_json(const BasicJsonType& j, ConstructibleArrayType& arr)
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-> decltype(from_json_array_impl(j, arr, priority_tag<3> {}),
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j.template get<typename ConstructibleArrayType::value_type>(),
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void())
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
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{
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JSON_THROW(type_error::create(302, concat("type must be array, but is ", j.type_name()), &j));
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}
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from_json_array_impl(j, arr, priority_tag<3> {});
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}
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template < typename BasicJsonType, typename T, std::size_t... Idx >
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std::array<T, sizeof...(Idx)> from_json_inplace_array_impl(BasicJsonType&& j,
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identity_tag<std::array<T, sizeof...(Idx)>> /*unused*/, index_sequence<Idx...> /*unused*/)
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{
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return { { std::forward<BasicJsonType>(j).at(Idx).template get<T>()... } };
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}
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template < typename BasicJsonType, typename T, std::size_t N >
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auto from_json(BasicJsonType&& j, identity_tag<std::array<T, N>> tag)
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-> decltype(from_json_inplace_array_impl(std::forward<BasicJsonType>(j), tag, make_index_sequence<N> {}))
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
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{
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JSON_THROW(type_error::create(302, concat("type must be array, but is ", j.type_name()), &j));
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}
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return from_json_inplace_array_impl(std::forward<BasicJsonType>(j), tag, make_index_sequence<N> {});
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}
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template<typename BasicJsonType>
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inline void from_json(const BasicJsonType& j, typename BasicJsonType::binary_t& bin)
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_binary()))
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{
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JSON_THROW(type_error::create(302, concat("type must be binary, but is ", j.type_name()), &j));
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}
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bin = *j.template get_ptr<const typename BasicJsonType::binary_t*>();
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}
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template<typename BasicJsonType, typename ConstructibleObjectType,
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enable_if_t<is_constructible_object_type<BasicJsonType, ConstructibleObjectType>::value, int> = 0>
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inline void from_json(const BasicJsonType& j, ConstructibleObjectType& obj)
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{
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if (JSON_HEDLEY_UNLIKELY(!j.is_object()))
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{
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JSON_THROW(type_error::create(302, concat("type must be object, but is ", j.type_name()), &j));
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}
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ConstructibleObjectType ret;
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const auto* inner_object = j.template get_ptr<const typename BasicJsonType::object_t*>();
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using value_type = typename ConstructibleObjectType::value_type;
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std::transform(
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inner_object->begin(), inner_object->end(),
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std::inserter(ret, ret.begin()),
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[](typename BasicJsonType::object_t::value_type const & p)
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{
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return value_type(p.first, p.second.template get<typename ConstructibleObjectType::mapped_type>());
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});
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obj = std::move(ret);
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}
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// overload for arithmetic types, not chosen for basic_json template arguments
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// (BooleanType, etc..); note: Is it really necessary to provide explicit
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// overloads for boolean_t etc. in case of a custom BooleanType which is not
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// an arithmetic type?
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template < typename BasicJsonType, typename ArithmeticType,
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enable_if_t <
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std::is_arithmetic<ArithmeticType>::value&&
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!std::is_same<ArithmeticType, typename BasicJsonType::number_unsigned_t>::value&&
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!std::is_same<ArithmeticType, typename BasicJsonType::number_integer_t>::value&&
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!std::is_same<ArithmeticType, typename BasicJsonType::number_float_t>::value&&
|
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!std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value,
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int > = 0 >
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inline void from_json(const BasicJsonType& j, ArithmeticType& val)
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{
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switch (static_cast<value_t>(j))
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{
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case value_t::number_unsigned:
|
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_unsigned_t*>());
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break;
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}
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case value_t::number_integer:
|
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{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_integer_t*>());
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break;
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}
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case value_t::number_float:
|
||||
{
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_float_t*>());
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break;
|
||||
}
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case value_t::boolean:
|
||||
{
|
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val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::boolean_t*>());
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break;
|
||||
}
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||||
|
||||
case value_t::null:
|
||||
case value_t::object:
|
||||
case value_t::array:
|
||||
case value_t::string:
|
||||
case value_t::binary:
|
||||
case value_t::discarded:
|
||||
default:
|
||||
JSON_THROW(type_error::create(302, concat("type must be number, but is ", j.type_name()), &j));
|
||||
}
|
||||
}
|
||||
|
||||
template<typename BasicJsonType, typename... Args, std::size_t... Idx>
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std::tuple<Args...> from_json_tuple_impl_base(BasicJsonType&& j, index_sequence<Idx...> /*unused*/)
|
||||
{
|
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return std::make_tuple(std::forward<BasicJsonType>(j).at(Idx).template get<Args>()...);
|
||||
}
|
||||
|
||||
template < typename BasicJsonType, class A1, class A2 >
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std::pair<A1, A2> from_json_tuple_impl(BasicJsonType&& j, identity_tag<std::pair<A1, A2>> /*unused*/, priority_tag<0> /*unused*/)
|
||||
{
|
||||
return {std::forward<BasicJsonType>(j).at(0).template get<A1>(),
|
||||
std::forward<BasicJsonType>(j).at(1).template get<A2>()};
|
||||
}
|
||||
|
||||
template<typename BasicJsonType, typename A1, typename A2>
|
||||
inline void from_json_tuple_impl(BasicJsonType&& j, std::pair<A1, A2>& p, priority_tag<1> /*unused*/)
|
||||
{
|
||||
p = from_json_tuple_impl(std::forward<BasicJsonType>(j), identity_tag<std::pair<A1, A2>> {}, priority_tag<0> {});
|
||||
}
|
||||
|
||||
template<typename BasicJsonType, typename... Args>
|
||||
std::tuple<Args...> from_json_tuple_impl(BasicJsonType&& j, identity_tag<std::tuple<Args...>> /*unused*/, priority_tag<2> /*unused*/)
|
||||
{
|
||||
return from_json_tuple_impl_base<BasicJsonType, Args...>(std::forward<BasicJsonType>(j), index_sequence_for<Args...> {});
|
||||
}
|
||||
|
||||
template<typename BasicJsonType, typename... Args>
|
||||
inline void from_json_tuple_impl(BasicJsonType&& j, std::tuple<Args...>& t, priority_tag<3> /*unused*/)
|
||||
{
|
||||
t = from_json_tuple_impl_base<BasicJsonType, Args...>(std::forward<BasicJsonType>(j), index_sequence_for<Args...> {});
|
||||
}
|
||||
|
||||
template<typename BasicJsonType, typename TupleRelated>
|
||||
auto from_json(BasicJsonType&& j, TupleRelated&& t)
|
||||
-> decltype(from_json_tuple_impl(std::forward<BasicJsonType>(j), std::forward<TupleRelated>(t), priority_tag<3> {}))
|
||||
{
|
||||
if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
|
||||
{
|
||||
JSON_THROW(type_error::create(302, concat("type must be array, but is ", j.type_name()), &j));
|
||||
}
|
||||
|
||||
return from_json_tuple_impl(std::forward<BasicJsonType>(j), std::forward<TupleRelated>(t), priority_tag<3> {});
|
||||
}
|
||||
|
||||
template < typename BasicJsonType, typename Key, typename Value, typename Compare, typename Allocator,
|
||||
typename = enable_if_t < !std::is_constructible <
|
||||
typename BasicJsonType::string_t, Key >::value >>
|
||||
inline void from_json(const BasicJsonType& j, std::map<Key, Value, Compare, Allocator>& m)
|
||||
{
|
||||
if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
|
||||
{
|
||||
JSON_THROW(type_error::create(302, concat("type must be array, but is ", j.type_name()), &j));
|
||||
}
|
||||
m.clear();
|
||||
for (const auto& p : j)
|
||||
{
|
||||
if (JSON_HEDLEY_UNLIKELY(!p.is_array()))
|
||||
{
|
||||
JSON_THROW(type_error::create(302, concat("type must be array, but is ", p.type_name()), &j));
|
||||
}
|
||||
m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
|
||||
}
|
||||
}
|
||||
|
||||
template < typename BasicJsonType, typename Key, typename Value, typename Hash, typename KeyEqual, typename Allocator,
|
||||
typename = enable_if_t < !std::is_constructible <
|
||||
typename BasicJsonType::string_t, Key >::value >>
|
||||
inline void from_json(const BasicJsonType& j, std::unordered_map<Key, Value, Hash, KeyEqual, Allocator>& m)
|
||||
{
|
||||
if (JSON_HEDLEY_UNLIKELY(!j.is_array()))
|
||||
{
|
||||
JSON_THROW(type_error::create(302, concat("type must be array, but is ", j.type_name()), &j));
|
||||
}
|
||||
m.clear();
|
||||
for (const auto& p : j)
|
||||
{
|
||||
if (JSON_HEDLEY_UNLIKELY(!p.is_array()))
|
||||
{
|
||||
JSON_THROW(type_error::create(302, concat("type must be array, but is ", p.type_name()), &j));
|
||||
}
|
||||
m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
|
||||
}
|
||||
}
|
||||
|
||||
#if JSON_HAS_FILESYSTEM || JSON_HAS_EXPERIMENTAL_FILESYSTEM
|
||||
template<typename BasicJsonType>
|
||||
inline void from_json(const BasicJsonType& j, std_fs::path& p)
|
||||
{
|
||||
if (JSON_HEDLEY_UNLIKELY(!j.is_string()))
|
||||
{
|
||||
JSON_THROW(type_error::create(302, concat("type must be string, but is ", j.type_name()), &j));
|
||||
}
|
||||
p = *j.template get_ptr<const typename BasicJsonType::string_t*>();
|
||||
}
|
||||
#endif
|
||||
|
||||
struct from_json_fn
|
||||
{
|
||||
template<typename BasicJsonType, typename T>
|
||||
auto operator()(const BasicJsonType& j, T&& val) const
|
||||
noexcept(noexcept(from_json(j, std::forward<T>(val))))
|
||||
-> decltype(from_json(j, std::forward<T>(val)))
|
||||
{
|
||||
return from_json(j, std::forward<T>(val));
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
#ifndef JSON_HAS_CPP_17
|
||||
/// namespace to hold default `from_json` function
|
||||
/// to see why this is required:
|
||||
/// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4381.html
|
||||
namespace // NOLINT(cert-dcl59-cpp,fuchsia-header-anon-namespaces,google-build-namespaces)
|
||||
{
|
||||
#endif
|
||||
JSON_INLINE_VARIABLE constexpr const auto& from_json = // NOLINT(misc-definitions-in-headers)
|
||||
detail::static_const<detail::from_json_fn>::value;
|
||||
#ifndef JSON_HAS_CPP_17
|
||||
} // namespace
|
||||
#endif
|
||||
|
||||
NLOHMANN_JSON_NAMESPACE_END
|
||||
Reference in New Issue
Block a user