From 06d42b14b7c95dd9997eed2c5803516670b844c8 Mon Sep 17 00:00:00 2001 From: Rajat Singhal Date: Wed, 30 Jun 2021 00:18:27 +0530 Subject: [PATCH 01/84] Fix some old bugs in GeodeticConverter --- AirLib/include/common/GeodeticConverter.hpp | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/AirLib/include/common/GeodeticConverter.hpp b/AirLib/include/common/GeodeticConverter.hpp index cffd886625..cbeb223931 100644 --- a/AirLib/include/common/GeodeticConverter.hpp +++ b/AirLib/include/common/GeodeticConverter.hpp @@ -39,10 +39,8 @@ namespace airlib geodetic2Ecef(home_latitude_, home_longitude_, home_altitude_, &home_ecef_x_, &home_ecef_y_, &home_ecef_z_); // Compute ECEF to NED and NED to ECEF matrices - double phiP = atan2(home_ecef_z_, sqrt(pow(home_ecef_x_, 2) + pow(home_ecef_y_, 2))); - - ecef_to_ned_matrix_ = nRe(phiP, home_longitude_rad_); - ned_to_ecef_matrix_ = nRe(home_latitude_rad_, home_longitude_rad_).transpose(); + ecef_to_ned_matrix_ = nRe(home_latitude_rad_, home_longitude_rad_); + ned_to_ecef_matrix_ = ecef_to_ned_matrix_.inverse(); } void setHome(const GeoPoint& home_geopoint) @@ -143,10 +141,6 @@ namespace airlib double x, y, z; ned2Ecef(north, east, down, &x, &y, &z); ecef2Geodetic(x, y, z, latitude, longitude, altitude); - - //TODO: above returns wrong altitude if down was positive. This is because sqrt return value would be -ve - //but normal sqrt only return +ve. For now we just override it. - *altitude = home_altitude_ - down; } void ned2Geodetic(const Vector3r& ned_pos, GeoPoint& geopoint) From 4accf0a4907aa228b0f76fd3958e7eb3a6a3be3f Mon Sep 17 00:00:00 2001 From: Rajat Singhal Date: Wed, 30 Jun 2021 00:47:42 +0530 Subject: [PATCH 02/84] Use GeodeticConverter for NED to GPS conversion --- AirLib/include/physics/Environment.hpp | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/AirLib/include/physics/Environment.hpp b/AirLib/include/physics/Environment.hpp index f3e7837ccf..9649ea0a8f 100644 --- a/AirLib/include/physics/Environment.hpp +++ b/AirLib/include/physics/Environment.hpp @@ -8,6 +8,7 @@ #include "common/UpdatableObject.hpp" #include "common/CommonStructs.hpp" #include "common/EarthUtils.hpp" +#include "common/GeodeticConverter.hpp" namespace msr { @@ -53,12 +54,13 @@ namespace airlib setHomeGeoPoint(initial_.geo_point); - updateState(initial_, home_geo_point_); + updateState(initial_); } void setHomeGeoPoint(const GeoPoint& home_geo_point) { home_geo_point_ = HomeGeoPoint(home_geo_point); + geodetic_converter_.setHome(home_geo_point); } GeoPoint getHomeGeoPoint() const @@ -87,7 +89,7 @@ namespace airlib virtual void update() override { - updateState(current_, home_geo_point_); + updateState(current_); } protected: @@ -106,9 +108,9 @@ namespace airlib } private: - static void updateState(State& state, const HomeGeoPoint& home_geo_point) + void updateState(State& state) { - state.geo_point = EarthUtils::nedToGeodetic(state.position, home_geo_point); + geodetic_converter_.ned2Geodetic(state.position, state.geo_point); real_T geo_pot = EarthUtils::getGeopotential(state.geo_point.altitude / 1000.0f); state.temperature = EarthUtils::getStandardTemperature(geo_pot); @@ -122,6 +124,7 @@ namespace airlib private: State initial_, current_; HomeGeoPoint home_geo_point_; + GeodeticConverter geodetic_converter_; }; } } //namespace From 1e1caa281b68d53eecb993ef7100b4c02542a359 Mon Sep 17 00:00:00 2001 From: jmackay2 Date: Wed, 9 Mar 2022 23:04:58 -0500 Subject: [PATCH 03/84] Update some deprecated functionality in UE 4.27 and 5 with backward compatibility --- .../Plugins/AirSim/Source/AirBlueprintLib.cpp | 20 +++++++++++++++---- .../AirSim/Source/DetectionComponent.cpp | 4 ++-- .../AirSim/Source/Recording/RecordingFile.cpp | 6 +++++- 3 files changed, 23 insertions(+), 7 deletions(-) diff --git a/Unreal/Plugins/AirSim/Source/AirBlueprintLib.cpp b/Unreal/Plugins/AirSim/Source/AirBlueprintLib.cpp index e7289d6998..751e191a00 100644 --- a/Unreal/Plugins/AirSim/Source/AirBlueprintLib.cpp +++ b/Unreal/Plugins/AirSim/Source/AirBlueprintLib.cpp @@ -455,8 +455,12 @@ std::vector UAirBlueprintLib::Ge //Various checks if there is even a valid mesh if (!comp->GetStaticMesh()) continue; - if (!comp->GetStaticMesh()->RenderData) continue; - if (comp->GetStaticMesh()->RenderData->LODResources.Num() == 0) continue; + if (!comp->GetStaticMesh()->HasValidRenderData()) continue; + #if (ENGINE_MAJOR_VERSION >= 4 && ENGINE_MINOR_VERSION > 26) + if (comp->GetStaticMesh()->GetRenderData()->LODResources.Num() == 0) continue; + #else + if (comp->GetStaticMesh()->RenderData->LODResources.Num() == 0) continue; + #endif msr::airlib::MeshPositionVertexBuffersResponse mesh; mesh.name = name; @@ -471,7 +475,11 @@ std::vector UAirBlueprintLib::Ge mesh.orientation.y() = att.Y; mesh.orientation.z() = att.Z; - FPositionVertexBuffer* vertex_buffer = &comp->GetStaticMesh()->RenderData->LODResources[0].VertexBuffers.PositionVertexBuffer; + #if (ENGINE_MAJOR_VERSION >= 4 && ENGINE_MINOR_VERSION > 26) + FPositionVertexBuffer* vertex_buffer = &comp->GetStaticMesh()->GetRenderData()->LODResources[0].VertexBuffers.PositionVertexBuffer; + #else + FPositionVertexBuffer* vertex_buffer = &comp->GetStaticMesh()->RenderData->LODResources[0].VertexBuffers.PositionVertexBuffer; + #endif if (vertex_buffer) { const int32 vertex_count = vertex_buffer->VertexBufferRHI->GetSize(); TArray vertices; @@ -486,7 +494,11 @@ std::vector UAirBlueprintLib::Ge RHIUnlockVertexBuffer(vertex_buffer->VertexBufferRHI); }); - FStaticMeshLODResources& lod = comp->GetStaticMesh()->RenderData->LODResources[0]; + #if (ENGINE_MAJOR_VERSION >= 4 && ENGINE_MINOR_VERSION > 26) + FStaticMeshLODResources& lod = comp->GetStaticMesh()->GetRenderData()->LODResources[0]; + #else + FStaticMeshLODResources& lod = comp->GetStaticMesh()->RenderData->LODResources[0]; + #endif FRawStaticIndexBuffer* IndexBuffer = &lod.IndexBuffer; int num_indices = IndexBuffer->IndexBufferRHI->GetSize() / IndexBuffer->IndexBufferRHI->GetStride(); diff --git a/Unreal/Plugins/AirSim/Source/DetectionComponent.cpp b/Unreal/Plugins/AirSim/Source/DetectionComponent.cpp index a72a9929e5..a1fc1281fa 100644 --- a/Unreal/Plugins/AirSim/Source/DetectionComponent.cpp +++ b/Unreal/Plugins/AirSim/Source/DetectionComponent.cpp @@ -142,7 +142,7 @@ bool UDetectionComponent::calcBoundingFromViewInfo(AActor* actor, FBox2D& box_ou for (FVector& point : points) { is_world_hit = GetWorld()->LineTraceSingleByChannel(result, GetComponentLocation(), point, ECC_WorldStatic); if (is_world_hit) { - if (result.Actor == actor) { + if (result.GetActor() == actor) { is_visible = true; break; } @@ -156,7 +156,7 @@ bool UDetectionComponent::calcBoundingFromViewInfo(AActor* actor, FBox2D& box_ou FVector point = UKismetMathLibrary::RandomPointInBoundingBox(origin, extend); is_world_hit = GetWorld()->LineTraceSingleByChannel(result, GetComponentLocation(), point, ECC_WorldStatic); if (is_world_hit) { - if (result.Actor == actor) { + if (result.GetActor() == actor) { is_visible = true; break; } diff --git a/Unreal/Plugins/AirSim/Source/Recording/RecordingFile.cpp b/Unreal/Plugins/AirSim/Source/Recording/RecordingFile.cpp index 533ffcca32..17e094b046 100644 --- a/Unreal/Plugins/AirSim/Source/Recording/RecordingFile.cpp +++ b/Unreal/Plugins/AirSim/Source/Recording/RecordingFile.cpp @@ -1,5 +1,9 @@ #include "RecordingFile.h" -#include "HAL/PlatformFilemanager.h" +#if ENGINE_MAJOR_VERSION > 4 + #include "HAL/PlatformFileManager.h" +#elif + #include "HAL/PlatformFilemanager.h" +#endif #include "Misc/FileHelper.h" #include #include "ImageUtils.h" From 7989dcc50302946089d7c9005f8111b6c5ab86d8 Mon Sep 17 00:00:00 2001 From: jmackay2 Date: Tue, 15 Mar 2022 22:25:35 -0400 Subject: [PATCH 04/84] Update json.hpp to latest version --- AirLib/include/common/common_utils/json.hpp | 29645 ++++++++++++------ 1 file changed, 19273 insertions(+), 10372 deletions(-) diff --git a/AirLib/include/common/common_utils/json.hpp b/AirLib/include/common/common_utils/json.hpp index d48eafaef0..ddf9b50d85 100644 --- a/AirLib/include/common/common_utils/json.hpp +++ b/AirLib/include/common/common_utils/json.hpp @@ -1,22 +1,19 @@ /* __ _____ _____ _____ __| | __| | | | JSON for Modern C++ -| | |__ | | | | | | version 2.1.1 +| | |__ | | | | | | version 3.10.5 |_____|_____|_____|_|___| https://github.com/nlohmann/json - Licensed under the MIT License . -Copyright (c) 2013-2017 Niels Lohmann . - +SPDX-License-Identifier: MIT +Copyright (c) 2013-2022 Niels Lohmann . Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: - The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE @@ -26,96 +23,75 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -#ifndef NLOHMANN_JSON_HPP -#define NLOHMANN_JSON_HPP -// clang-format off -#include // all_of, copy, fill, find, for_each, none_of, remove, reverse, transform -#include // array -#include // assert -#include // isdigit -#include // and, not, or -#include // isfinite, labs, ldexp, signbit +/****************************************************************************\ + * Note on documentation: The source files contain links to the online * + * documentation of the public API at https://json.nlohmann.me. This URL * + * contains the most recent documentation and should also be applicable to * + * previous versions; documentation for deprecated functions is not * + * removed, but marked deprecated. See "Generate documentation" section in * + * file doc/README.md. * +\****************************************************************************/ + +#ifndef INCLUDE_NLOHMANN_JSON_HPP_ +#define INCLUDE_NLOHMANN_JSON_HPP_ + +#define NLOHMANN_JSON_VERSION_MAJOR 3 +#define NLOHMANN_JSON_VERSION_MINOR 10 +#define NLOHMANN_JSON_VERSION_PATCH 5 + +#include // all_of, find, for_each #include // nullptr_t, ptrdiff_t, size_t -#include // int64_t, uint64_t -#include // abort, strtod, strtof, strtold, strtoul, strtoll, strtoull -#include // strlen -#include // forward_list -#include // function, hash, less +#include // hash, less #include // initializer_list -#include // setw -#include // istream, ostream -#include // advance, begin, back_inserter, bidirectional_iterator_tag, distance, end, inserter, iterator, iterator_traits, next, random_access_iterator_tag, reverse_iterator -#include // numeric_limits -#include // locale -#include // map -#include // addressof, allocator, allocator_traits, unique_ptr +#ifndef JSON_NO_IO + #include // istream, ostream +#endif // JSON_NO_IO +#include // random_access_iterator_tag +#include // unique_ptr #include // accumulate -#include // stringstream -#include // domain_error, invalid_argument, out_of_range -#include // getline, stoi, string, to_string -#include // add_pointer, conditional, decay, enable_if, false_type, integral_constant, is_arithmetic, is_base_of, is_const, is_constructible, is_convertible, is_default_constructible, is_enum, is_floating_point, is_integral, is_nothrow_move_assignable, is_nothrow_move_constructible, is_pointer, is_reference, is_same, is_scalar, is_signed, remove_const, remove_cv, remove_pointer, remove_reference, true_type, underlying_type -#include // declval, forward, make_pair, move, pair, swap +#include // string, stoi, to_string +#include // declval, forward, move, pair, swap #include // vector -// exclude unsupported compilers -#if defined(__clang__) - #if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400 - #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers" - #endif -#elif defined(__GNUC__) - #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40900 - #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers" - #endif -#endif +// #include -// disable float-equal warnings on GCC/clang -#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__) - #pragma GCC diagnostic push - #pragma GCC diagnostic ignored "-Wfloat-equal" -#endif -// disable documentation warnings on clang -#if defined(__clang__) - #pragma GCC diagnostic push - #pragma GCC diagnostic ignored "-Wdocumentation" -#endif +#include +#include -// allow for portable deprecation warnings -#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__) - #define JSON_DEPRECATED __attribute__((deprecated)) -#elif defined(_MSC_VER) - #define JSON_DEPRECATED __declspec(deprecated) -#else - #define JSON_DEPRECATED -#endif +// #include -// allow to disable exceptions -#if not defined(JSON_NOEXCEPTION) || defined(__EXCEPTIONS) - #define JSON_THROW(exception) throw exception - #define JSON_TRY try - #define JSON_CATCH(exception) catch(exception) -#else - #define JSON_THROW(exception) std::abort() - #define JSON_TRY if(true) - #define JSON_CATCH(exception) if(false) -#endif -/*! -@brief namespace for Niels Lohmann -@see https://github.com/nlohmann -@since version 1.0.0 -*/ -namespace nlohmann -{ +#include // transform +#include // array +#include // forward_list +#include // inserter, front_inserter, end +#include // map +#include // string +#include // tuple, make_tuple +#include // is_arithmetic, is_same, is_enum, underlying_type, is_convertible +#include // unordered_map +#include // pair, declval +#include // valarray -/*! -@brief unnamed namespace with internal helper functions +// #include -This namespace collects some functions that could not be defined inside the -@ref basic_json class. -@since version 2.1.0 -*/ +#include // exception +#include // runtime_error +#include // to_string +#include // vector + +// #include + + +#include // array +#include // size_t +#include // uint8_t +#include // string + +namespace nlohmann +{ namespace detail { /////////////////////////// @@ -124,7 +100,6 @@ namespace detail /*! @brief the JSON type enumeration - This enumeration collects the different JSON types. It is internally used to distinguish the stored values, and the functions @ref basic_json::is_null(), @ref basic_json::is_object(), @ref basic_json::is_array(), @@ -133,12113 +108,21033 @@ distinguish the stored values, and the functions @ref basic_json::is_null(), @ref basic_json::is_number_unsigned(), and @ref basic_json::is_number_float()), @ref basic_json::is_discarded(), @ref basic_json::is_primitive(), and @ref basic_json::is_structured() rely on it. - @note There are three enumeration entries (number_integer, number_unsigned, and number_float), because the library distinguishes these three types for numbers: @ref basic_json::number_unsigned_t is used for unsigned integers, @ref basic_json::number_integer_t is used for signed integers, and @ref basic_json::number_float_t is used for floating-point numbers or to approximate integers which do not fit in the limits of their respective type. - -@sa @ref basic_json::basic_json(const value_t value_type) -- create a JSON +@sa see @ref basic_json::basic_json(const value_t value_type) -- create a JSON value with the default value for a given type - @since version 1.0.0 */ -enum class value_t : uint8_t -{ - null, ///< null value - object, ///< object (unordered set of name/value pairs) - array, ///< array (ordered collection of values) - string, ///< string value - boolean, ///< boolean value - number_integer, ///< number value (signed integer) - number_unsigned, ///< number value (unsigned integer) - number_float, ///< number value (floating-point) - discarded ///< discarded by the the parser callback function +enum class value_t : std::uint8_t +{ + null, ///< null value + object, ///< object (unordered set of name/value pairs) + array, ///< array (ordered collection of values) + string, ///< string value + boolean, ///< boolean value + number_integer, ///< number value (signed integer) + number_unsigned, ///< number value (unsigned integer) + number_float, ///< number value (floating-point) + binary, ///< binary array (ordered collection of bytes) + discarded ///< discarded by the parser callback function }; /*! @brief comparison operator for JSON types - Returns an ordering that is similar to Python: -- order: null < boolean < number < object < array < string +- order: null < boolean < number < object < array < string < binary - furthermore, each type is not smaller than itself - +- discarded values are not comparable +- binary is represented as a b"" string in python and directly comparable to a + string; however, making a binary array directly comparable with a string would + be surprising behavior in a JSON file. @since version 1.0.0 */ inline bool operator<(const value_t lhs, const value_t rhs) noexcept { - static constexpr std::array order = {{ - 0, // null - 3, // object - 4, // array - 5, // string - 1, // boolean - 2, // integer - 2, // unsigned - 2, // float + static constexpr std::array order = {{ + 0 /* null */, 3 /* object */, 4 /* array */, 5 /* string */, + 1 /* boolean */, 2 /* integer */, 2 /* unsigned */, 2 /* float */, + 6 /* binary */ } }; - // discarded values are not comparable - if (lhs == value_t::discarded or rhs == value_t::discarded) - { - return false; - } - - return order[static_cast(lhs)] < - order[static_cast(rhs)]; + const auto l_index = static_cast(lhs); + const auto r_index = static_cast(rhs); + return l_index < order.size() && r_index < order.size() && order[l_index] < order[r_index]; } +} // namespace detail +} // namespace nlohmann +// #include -///////////// -// helpers // -///////////// - -// alias templates to reduce boilerplate -template -using enable_if_t = typename std::enable_if::type; -template -using uncvref_t = typename std::remove_cv::type>::type; +#include +// #include -// taken from http://stackoverflow.com/a/26936864/266378 -template -using is_unscoped_enum = - std::integral_constant::value and - std::is_enum::value>; -/* -Implementation of two C++17 constructs: conjunction, negation. This is needed -to avoid evaluating all the traits in a condition +#include // declval, pair +// #include -For example: not std::is_same::value and has_value_type::value -will not compile when T = void (on MSVC at least). Whereas -conjunction>, has_value_type>::value will -stop evaluating if negation<...>::value == false -Please note that those constructs must be used with caution, since symbols can -become very long quickly (which can slow down compilation and cause MSVC -internal compiler errors). Only use it when you have to (see example ahead). -*/ -template struct conjunction : std::true_type {}; -template struct conjunction : B1 {}; -template -struct conjunction : std::conditional, B1>::type {}; +/* Hedley - https://nemequ.github.io/hedley + * Created by Evan Nemerson + * + * To the extent possible under law, the author(s) have dedicated all + * copyright and related and neighboring rights to this software to + * the public domain worldwide. This software is distributed without + * any warranty. + * + * For details, see . + * SPDX-License-Identifier: CC0-1.0 + */ -template struct negation : std::integral_constant < bool, !B::value > {}; +#if !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < 15) +#if defined(JSON_HEDLEY_VERSION) + #undef JSON_HEDLEY_VERSION +#endif +#define JSON_HEDLEY_VERSION 15 -// dispatch utility (taken from ranges-v3) -template struct priority_tag : priority_tag < N - 1 > {}; -template<> struct priority_tag<0> {}; +#if defined(JSON_HEDLEY_STRINGIFY_EX) + #undef JSON_HEDLEY_STRINGIFY_EX +#endif +#define JSON_HEDLEY_STRINGIFY_EX(x) #x +#if defined(JSON_HEDLEY_STRINGIFY) + #undef JSON_HEDLEY_STRINGIFY +#endif +#define JSON_HEDLEY_STRINGIFY(x) JSON_HEDLEY_STRINGIFY_EX(x) -////////////////// -// constructors // -////////////////// +#if defined(JSON_HEDLEY_CONCAT_EX) + #undef JSON_HEDLEY_CONCAT_EX +#endif +#define JSON_HEDLEY_CONCAT_EX(a,b) a##b -template struct external_constructor; +#if defined(JSON_HEDLEY_CONCAT) + #undef JSON_HEDLEY_CONCAT +#endif +#define JSON_HEDLEY_CONCAT(a,b) JSON_HEDLEY_CONCAT_EX(a,b) -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept - { - j.m_type = value_t::boolean; - j.m_value = b; - j.assert_invariant(); - } -}; +#if defined(JSON_HEDLEY_CONCAT3_EX) + #undef JSON_HEDLEY_CONCAT3_EX +#endif +#define JSON_HEDLEY_CONCAT3_EX(a,b,c) a##b##c -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, const typename BasicJsonType::string_t& s) - { - j.m_type = value_t::string; - j.m_value = s; - j.assert_invariant(); - } -}; +#if defined(JSON_HEDLEY_CONCAT3) + #undef JSON_HEDLEY_CONCAT3 +#endif +#define JSON_HEDLEY_CONCAT3(a,b,c) JSON_HEDLEY_CONCAT3_EX(a,b,c) -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept - { - // replace infinity and NAN by null - if (not std::isfinite(val)) - { - j = BasicJsonType{}; - } - else - { - j.m_type = value_t::number_float; - j.m_value = val; - } - j.assert_invariant(); - } -}; +#if defined(JSON_HEDLEY_VERSION_ENCODE) + #undef JSON_HEDLEY_VERSION_ENCODE +#endif +#define JSON_HEDLEY_VERSION_ENCODE(major,minor,revision) (((major) * 1000000) + ((minor) * 1000) + (revision)) -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, typename BasicJsonType::number_unsigned_t val) noexcept - { - j.m_type = value_t::number_unsigned; - j.m_value = val; - j.assert_invariant(); - } -}; +#if defined(JSON_HEDLEY_VERSION_DECODE_MAJOR) + #undef JSON_HEDLEY_VERSION_DECODE_MAJOR +#endif +#define JSON_HEDLEY_VERSION_DECODE_MAJOR(version) ((version) / 1000000) -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, typename BasicJsonType::number_integer_t val) noexcept - { - j.m_type = value_t::number_integer; - j.m_value = val; - j.assert_invariant(); - } -}; +#if defined(JSON_HEDLEY_VERSION_DECODE_MINOR) + #undef JSON_HEDLEY_VERSION_DECODE_MINOR +#endif +#define JSON_HEDLEY_VERSION_DECODE_MINOR(version) (((version) % 1000000) / 1000) -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, const typename BasicJsonType::array_t& arr) - { - j.m_type = value_t::array; - j.m_value = arr; - j.assert_invariant(); - } +#if defined(JSON_HEDLEY_VERSION_DECODE_REVISION) + #undef JSON_HEDLEY_VERSION_DECODE_REVISION +#endif +#define JSON_HEDLEY_VERSION_DECODE_REVISION(version) ((version) % 1000) - template::value, - int> = 0> - static void construct(BasicJsonType& j, const CompatibleArrayType& arr) - { - using std::begin; - using std::end; - j.m_type = value_t::array; - j.m_value.array = j.template create(begin(arr), end(arr)); - j.assert_invariant(); - } -}; +#if defined(JSON_HEDLEY_GNUC_VERSION) + #undef JSON_HEDLEY_GNUC_VERSION +#endif +#if defined(__GNUC__) && defined(__GNUC_PATCHLEVEL__) + #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) +#elif defined(__GNUC__) + #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, 0) +#endif -template<> -struct external_constructor -{ - template - static void construct(BasicJsonType& j, const typename BasicJsonType::object_t& obj) - { - j.m_type = value_t::object; - j.m_value = obj; - j.assert_invariant(); - } +#if defined(JSON_HEDLEY_GNUC_VERSION_CHECK) + #undef JSON_HEDLEY_GNUC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_GNUC_VERSION) + #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GNUC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (0) +#endif - template::value, - int> = 0> - static void construct(BasicJsonType& j, const CompatibleObjectType& obj) - { - using std::begin; - using std::end; +#if defined(JSON_HEDLEY_MSVC_VERSION) + #undef JSON_HEDLEY_MSVC_VERSION +#endif +#if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 140000000) && !defined(__ICL) + #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 10000000, (_MSC_FULL_VER % 10000000) / 100000, (_MSC_FULL_VER % 100000) / 100) +#elif defined(_MSC_FULL_VER) && !defined(__ICL) + #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 1000000, (_MSC_FULL_VER % 1000000) / 10000, (_MSC_FULL_VER % 10000) / 10) +#elif defined(_MSC_VER) && !defined(__ICL) + #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_VER / 100, _MSC_VER % 100, 0) +#endif - j.m_type = value_t::object; - j.m_value.object = j.template create(begin(obj), end(obj)); - j.assert_invariant(); - } -}; +#if defined(JSON_HEDLEY_MSVC_VERSION_CHECK) + #undef JSON_HEDLEY_MSVC_VERSION_CHECK +#endif +#if !defined(JSON_HEDLEY_MSVC_VERSION) + #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (0) +#elif defined(_MSC_VER) && (_MSC_VER >= 1400) + #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 10000000) + (minor * 100000) + (patch))) +#elif defined(_MSC_VER) && (_MSC_VER >= 1200) + #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch))) +#else + #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_VER >= ((major * 100) + (minor))) +#endif +#if defined(JSON_HEDLEY_INTEL_VERSION) + #undef JSON_HEDLEY_INTEL_VERSION +#endif +#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && !defined(__ICL) + #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, __INTEL_COMPILER_UPDATE) +#elif defined(__INTEL_COMPILER) && !defined(__ICL) + #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, 0) +#endif -//////////////////////// -// has_/is_ functions // -//////////////////////// +#if defined(JSON_HEDLEY_INTEL_VERSION_CHECK) + #undef JSON_HEDLEY_INTEL_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_INTEL_VERSION) + #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (0) +#endif -/*! -@brief Helper to determine whether there's a key_type for T. +#if defined(JSON_HEDLEY_INTEL_CL_VERSION) + #undef JSON_HEDLEY_INTEL_CL_VERSION +#endif +#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && defined(__ICL) + #define JSON_HEDLEY_INTEL_CL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER, __INTEL_COMPILER_UPDATE, 0) +#endif -This helper is used to tell associative containers apart from other containers -such as sequence containers. For instance, `std::map` passes the test as it -contains a `mapped_type`, whereas `std::vector` fails the test. +#if defined(JSON_HEDLEY_INTEL_CL_VERSION_CHECK) + #undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_INTEL_CL_VERSION) + #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_CL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (0) +#endif -@sa http://stackoverflow.com/a/7728728/266378 -@since version 1.0.0, overworked in version 2.0.6 -*/ -#define NLOHMANN_JSON_HAS_HELPER(type) \ - template struct has_##type { \ - private: \ - template \ - static int detect(U &&); \ - static void detect(...); \ - public: \ - static constexpr bool value = \ - std::is_integral()))>::value; \ - } +#if defined(JSON_HEDLEY_PGI_VERSION) + #undef JSON_HEDLEY_PGI_VERSION +#endif +#if defined(__PGI) && defined(__PGIC__) && defined(__PGIC_MINOR__) && defined(__PGIC_PATCHLEVEL__) + #define JSON_HEDLEY_PGI_VERSION JSON_HEDLEY_VERSION_ENCODE(__PGIC__, __PGIC_MINOR__, __PGIC_PATCHLEVEL__) +#endif -NLOHMANN_JSON_HAS_HELPER(mapped_type); -NLOHMANN_JSON_HAS_HELPER(key_type); -NLOHMANN_JSON_HAS_HELPER(value_type); -NLOHMANN_JSON_HAS_HELPER(iterator); +#if defined(JSON_HEDLEY_PGI_VERSION_CHECK) + #undef JSON_HEDLEY_PGI_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_PGI_VERSION) + #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PGI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (0) +#endif -#undef NLOHMANN_JSON_HAS_HELPER +#if defined(JSON_HEDLEY_SUNPRO_VERSION) + #undef JSON_HEDLEY_SUNPRO_VERSION +#endif +#if defined(__SUNPRO_C) && (__SUNPRO_C > 0x1000) + #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_C >> 16) & 0xf) * 10) + ((__SUNPRO_C >> 12) & 0xf), (((__SUNPRO_C >> 8) & 0xf) * 10) + ((__SUNPRO_C >> 4) & 0xf), (__SUNPRO_C & 0xf) * 10) +#elif defined(__SUNPRO_C) + #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_C >> 8) & 0xf, (__SUNPRO_C >> 4) & 0xf, (__SUNPRO_C) & 0xf) +#elif defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x1000) + #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_CC >> 16) & 0xf) * 10) + ((__SUNPRO_CC >> 12) & 0xf), (((__SUNPRO_CC >> 8) & 0xf) * 10) + ((__SUNPRO_CC >> 4) & 0xf), (__SUNPRO_CC & 0xf) * 10) +#elif defined(__SUNPRO_CC) + #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_CC >> 8) & 0xf, (__SUNPRO_CC >> 4) & 0xf, (__SUNPRO_CC) & 0xf) +#endif +#if defined(JSON_HEDLEY_SUNPRO_VERSION_CHECK) + #undef JSON_HEDLEY_SUNPRO_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_SUNPRO_VERSION) + #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_SUNPRO_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (0) +#endif -template -struct is_compatible_object_type_impl : std::false_type {}; +#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION) + #undef JSON_HEDLEY_EMSCRIPTEN_VERSION +#endif +#if defined(__EMSCRIPTEN__) + #define JSON_HEDLEY_EMSCRIPTEN_VERSION JSON_HEDLEY_VERSION_ENCODE(__EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__) +#endif -template -struct is_compatible_object_type_impl -{ - static constexpr auto value = - std::is_constructible::value and - std::is_constructible::value; -}; +#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK) + #undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION) + #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_EMSCRIPTEN_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (0) +#endif -template -struct is_compatible_object_type -{ - static auto constexpr value = is_compatible_object_type_impl < - conjunction>, - has_mapped_type, - has_key_type>::value, - typename BasicJsonType::object_t, CompatibleObjectType >::value; -}; +#if defined(JSON_HEDLEY_ARM_VERSION) + #undef JSON_HEDLEY_ARM_VERSION +#endif +#if defined(__CC_ARM) && defined(__ARMCOMPILER_VERSION) + #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCOMPILER_VERSION / 1000000, (__ARMCOMPILER_VERSION % 1000000) / 10000, (__ARMCOMPILER_VERSION % 10000) / 100) +#elif defined(__CC_ARM) && defined(__ARMCC_VERSION) + #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCC_VERSION / 1000000, (__ARMCC_VERSION % 1000000) / 10000, (__ARMCC_VERSION % 10000) / 100) +#endif -template -struct is_basic_json_nested_type -{ - static auto constexpr value = std::is_same::value or - std::is_same::value or - std::is_same::value or - std::is_same::value or - std::is_same::value; -}; +#if defined(JSON_HEDLEY_ARM_VERSION_CHECK) + #undef JSON_HEDLEY_ARM_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_ARM_VERSION) + #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_ARM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (0) +#endif -template -struct is_compatible_array_type -{ - static auto constexpr value = - conjunction>, - negation>, - negation>, - negation>, - has_value_type, - has_iterator>::value; -}; +#if defined(JSON_HEDLEY_IBM_VERSION) + #undef JSON_HEDLEY_IBM_VERSION +#endif +#if defined(__ibmxl__) + #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ibmxl_version__, __ibmxl_release__, __ibmxl_modification__) +#elif defined(__xlC__) && defined(__xlC_ver__) + #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, (__xlC_ver__ >> 8) & 0xff) +#elif defined(__xlC__) + #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, 0) +#endif -template -struct is_compatible_integer_type_impl : std::false_type {}; +#if defined(JSON_HEDLEY_IBM_VERSION_CHECK) + #undef JSON_HEDLEY_IBM_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_IBM_VERSION) + #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IBM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (0) +#endif -template -struct is_compatible_integer_type_impl -{ - // is there an assert somewhere on overflows? - using RealLimits = std::numeric_limits; - using CompatibleLimits = std::numeric_limits; +#if defined(JSON_HEDLEY_TI_VERSION) + #undef JSON_HEDLEY_TI_VERSION +#endif +#if \ + defined(__TI_COMPILER_VERSION__) && \ + ( \ + defined(__TMS470__) || defined(__TI_ARM__) || \ + defined(__MSP430__) || \ + defined(__TMS320C2000__) \ + ) +#if (__TI_COMPILER_VERSION__ >= 16000000) + #define JSON_HEDLEY_TI_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif +#endif - static constexpr auto value = - std::is_constructible::value and - CompatibleLimits::is_integer and - RealLimits::is_signed == CompatibleLimits::is_signed; -}; +#if defined(JSON_HEDLEY_TI_VERSION_CHECK) + #undef JSON_HEDLEY_TI_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_VERSION) + #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (0) +#endif -template -struct is_compatible_integer_type -{ - static constexpr auto value = - is_compatible_integer_type_impl < - std::is_integral::value and - not std::is_same::value, - RealIntegerType, CompatibleNumberIntegerType > ::value; -}; +#if defined(JSON_HEDLEY_TI_CL2000_VERSION) + #undef JSON_HEDLEY_TI_CL2000_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C2000__) + #define JSON_HEDLEY_TI_CL2000_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif +#if defined(JSON_HEDLEY_TI_CL2000_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CL2000_VERSION) + #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL2000_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (0) +#endif -// trait checking if JSONSerializer::from_json(json const&, udt&) exists -template -struct has_from_json -{ - private: - // also check the return type of from_json - template::from_json( - std::declval(), std::declval()))>::value>> - static int detect(U&&); - static void detect(...); +#if defined(JSON_HEDLEY_TI_CL430_VERSION) + #undef JSON_HEDLEY_TI_CL430_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__MSP430__) + #define JSON_HEDLEY_TI_CL430_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif - public: - static constexpr bool value = std::is_integral>()))>::value; -}; +#if defined(JSON_HEDLEY_TI_CL430_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CL430_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CL430_VERSION) + #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL430_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (0) +#endif -// This trait checks if JSONSerializer::from_json(json const&) exists -// this overload is used for non-default-constructible user-defined-types -template -struct has_non_default_from_json -{ - private: - template < - typename U, - typename = enable_if_t::from_json(std::declval()))>::value >> - static int detect(U&&); - static void detect(...); +#if defined(JSON_HEDLEY_TI_ARMCL_VERSION) + #undef JSON_HEDLEY_TI_ARMCL_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && (defined(__TMS470__) || defined(__TI_ARM__)) + #define JSON_HEDLEY_TI_ARMCL_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif - public: - static constexpr bool value = std::is_integral>()))>::value; -}; +#if defined(JSON_HEDLEY_TI_ARMCL_VERSION_CHECK) + #undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_ARMCL_VERSION) + #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_ARMCL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (0) +#endif -// This trait checks if BasicJsonType::json_serializer::to_json exists -template -struct has_to_json -{ - private: - template::to_json( - std::declval(), std::declval()))> - static int detect(U&&); - static void detect(...); +#if defined(JSON_HEDLEY_TI_CL6X_VERSION) + #undef JSON_HEDLEY_TI_CL6X_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C6X__) + #define JSON_HEDLEY_TI_CL6X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif - public: - static constexpr bool value = std::is_integral>()))>::value; -}; +#if defined(JSON_HEDLEY_TI_CL6X_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CL6X_VERSION) + #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL6X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (0) +#endif +#if defined(JSON_HEDLEY_TI_CL7X_VERSION) + #undef JSON_HEDLEY_TI_CL7X_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__C7000__) + #define JSON_HEDLEY_TI_CL7X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif -///////////// -// to_json // -///////////// +#if defined(JSON_HEDLEY_TI_CL7X_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CL7X_VERSION) + #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL7X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (0) +#endif -template::value, int> = 0> -void to_json(BasicJsonType& j, T b) noexcept -{ - external_constructor::construct(j, b); -} +#if defined(JSON_HEDLEY_TI_CLPRU_VERSION) + #undef JSON_HEDLEY_TI_CLPRU_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__PRU__) + #define JSON_HEDLEY_TI_CLPRU_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif -template::value, int> = 0> -void to_json(BasicJsonType& j, const CompatibleString& s) -{ - external_constructor::construct(j, s); -} +#if defined(JSON_HEDLEY_TI_CLPRU_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CLPRU_VERSION) + #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CLPRU_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (0) +#endif -template::value, int> = 0> -void to_json(BasicJsonType& j, FloatType val) noexcept -{ - external_constructor::construct(j, static_cast(val)); -} +#if defined(JSON_HEDLEY_CRAY_VERSION) + #undef JSON_HEDLEY_CRAY_VERSION +#endif +#if defined(_CRAYC) + #if defined(_RELEASE_PATCHLEVEL) + #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, _RELEASE_PATCHLEVEL) + #else + #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, 0) + #endif +#endif -template < - typename BasicJsonType, typename CompatibleNumberUnsignedType, - enable_if_t::value, int> = 0 > -void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept -{ - external_constructor::construct(j, static_cast(val)); -} +#if defined(JSON_HEDLEY_CRAY_VERSION_CHECK) + #undef JSON_HEDLEY_CRAY_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_CRAY_VERSION) + #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_CRAY_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (0) +#endif -template < - typename BasicJsonType, typename CompatibleNumberIntegerType, - enable_if_t::value, int> = 0 > -void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept -{ - external_constructor::construct(j, static_cast(val)); -} +#if defined(JSON_HEDLEY_IAR_VERSION) + #undef JSON_HEDLEY_IAR_VERSION +#endif +#if defined(__IAR_SYSTEMS_ICC__) + #if __VER__ > 1000 + #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE((__VER__ / 1000000), ((__VER__ / 1000) % 1000), (__VER__ % 1000)) + #else + #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE(__VER__ / 100, __VER__ % 100, 0) + #endif +#endif -template::value, int> = 0> -void to_json(BasicJsonType& j, UnscopedEnumType e) noexcept -{ - external_constructor::construct(j, e); -} +#if defined(JSON_HEDLEY_IAR_VERSION_CHECK) + #undef JSON_HEDLEY_IAR_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_IAR_VERSION) + #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IAR_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (0) +#endif -template < - typename BasicJsonType, typename CompatibleArrayType, - enable_if_t < - is_compatible_array_type::value or - std::is_same::value, - int > = 0 > -void to_json(BasicJsonType& j, const CompatibleArrayType& arr) -{ - external_constructor::construct(j, arr); -} +#if defined(JSON_HEDLEY_TINYC_VERSION) + #undef JSON_HEDLEY_TINYC_VERSION +#endif +#if defined(__TINYC__) + #define JSON_HEDLEY_TINYC_VERSION JSON_HEDLEY_VERSION_ENCODE(__TINYC__ / 1000, (__TINYC__ / 100) % 10, __TINYC__ % 100) +#endif -template < - typename BasicJsonType, typename CompatibleObjectType, - enable_if_t::value, - int> = 0 > -void to_json(BasicJsonType& j, const CompatibleObjectType& arr) -{ - external_constructor::construct(j, arr); -} +#if defined(JSON_HEDLEY_TINYC_VERSION_CHECK) + #undef JSON_HEDLEY_TINYC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TINYC_VERSION) + #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TINYC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (0) +#endif +#if defined(JSON_HEDLEY_DMC_VERSION) + #undef JSON_HEDLEY_DMC_VERSION +#endif +#if defined(__DMC__) + #define JSON_HEDLEY_DMC_VERSION JSON_HEDLEY_VERSION_ENCODE(__DMC__ >> 8, (__DMC__ >> 4) & 0xf, __DMC__ & 0xf) +#endif -/////////////// -// from_json // -/////////////// +#if defined(JSON_HEDLEY_DMC_VERSION_CHECK) + #undef JSON_HEDLEY_DMC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_DMC_VERSION) + #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_DMC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (0) +#endif -// overloads for basic_json template parameters -template::value and - not std::is_same::value, - int> = 0> -void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val) -{ - switch (static_cast(j)) - { - case value_t::number_unsigned: - { - val = static_cast( - *j.template get_ptr()); - break; - } - case value_t::number_integer: - { - val = static_cast( - *j.template get_ptr()); - break; - } - case value_t::number_float: - { - val = static_cast( - *j.template get_ptr()); - break; - } - default: - { - JSON_THROW( - std::domain_error("type must be number, but is " + j.type_name())); - } - } -} +#if defined(JSON_HEDLEY_COMPCERT_VERSION) + #undef JSON_HEDLEY_COMPCERT_VERSION +#endif +#if defined(__COMPCERT_VERSION__) + #define JSON_HEDLEY_COMPCERT_VERSION JSON_HEDLEY_VERSION_ENCODE(__COMPCERT_VERSION__ / 10000, (__COMPCERT_VERSION__ / 100) % 100, __COMPCERT_VERSION__ % 100) +#endif -template -void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b) -{ - if (not j.is_boolean()) - { - JSON_THROW(std::domain_error("type must be boolean, but is " + j.type_name())); - } - b = *j.template get_ptr(); -} +#if defined(JSON_HEDLEY_COMPCERT_VERSION_CHECK) + #undef JSON_HEDLEY_COMPCERT_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_COMPCERT_VERSION) + #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_COMPCERT_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (0) +#endif -template -void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s) -{ - if (not j.is_string()) - { - JSON_THROW(std::domain_error("type must be string, but is " + j.type_name())); - } - s = *j.template get_ptr(); -} +#if defined(JSON_HEDLEY_PELLES_VERSION) + #undef JSON_HEDLEY_PELLES_VERSION +#endif +#if defined(__POCC__) + #define JSON_HEDLEY_PELLES_VERSION JSON_HEDLEY_VERSION_ENCODE(__POCC__ / 100, __POCC__ % 100, 0) +#endif -template -void from_json(const BasicJsonType& j, typename BasicJsonType::number_float_t& val) -{ - get_arithmetic_value(j, val); -} +#if defined(JSON_HEDLEY_PELLES_VERSION_CHECK) + #undef JSON_HEDLEY_PELLES_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_PELLES_VERSION) + #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PELLES_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (0) +#endif -template -void from_json(const BasicJsonType& j, typename BasicJsonType::number_unsigned_t& val) -{ - get_arithmetic_value(j, val); -} +#if defined(JSON_HEDLEY_MCST_LCC_VERSION) + #undef JSON_HEDLEY_MCST_LCC_VERSION +#endif +#if defined(__LCC__) && defined(__LCC_MINOR__) + #define JSON_HEDLEY_MCST_LCC_VERSION JSON_HEDLEY_VERSION_ENCODE(__LCC__ / 100, __LCC__ % 100, __LCC_MINOR__) +#endif -template -void from_json(const BasicJsonType& j, typename BasicJsonType::number_integer_t& val) -{ - get_arithmetic_value(j, val); -} +#if defined(JSON_HEDLEY_MCST_LCC_VERSION_CHECK) + #undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_MCST_LCC_VERSION) + #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_MCST_LCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (0) +#endif -template::value, int> = 0> -void from_json(const BasicJsonType& j, UnscopedEnumType& e) -{ - typename std::underlying_type::type val; - get_arithmetic_value(j, val); - e = static_cast(val); -} +#if defined(JSON_HEDLEY_GCC_VERSION) + #undef JSON_HEDLEY_GCC_VERSION +#endif +#if \ + defined(JSON_HEDLEY_GNUC_VERSION) && \ + !defined(__clang__) && \ + !defined(JSON_HEDLEY_INTEL_VERSION) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_ARM_VERSION) && \ + !defined(JSON_HEDLEY_CRAY_VERSION) && \ + !defined(JSON_HEDLEY_TI_VERSION) && \ + !defined(JSON_HEDLEY_TI_ARMCL_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL430_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL2000_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL6X_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL7X_VERSION) && \ + !defined(JSON_HEDLEY_TI_CLPRU_VERSION) && \ + !defined(__COMPCERT__) && \ + !defined(JSON_HEDLEY_MCST_LCC_VERSION) + #define JSON_HEDLEY_GCC_VERSION JSON_HEDLEY_GNUC_VERSION +#endif -template -void from_json(const BasicJsonType& j, typename BasicJsonType::array_t& arr) -{ - if (not j.is_array()) - { - JSON_THROW(std::domain_error("type must be array, but is " + j.type_name())); - } - arr = *j.template get_ptr(); -} +#if defined(JSON_HEDLEY_GCC_VERSION_CHECK) + #undef JSON_HEDLEY_GCC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_GCC_VERSION) + #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (0) +#endif -// forward_list doesn't have an insert method -template -void from_json(const BasicJsonType& j, std::forward_list& l) -{ - // do not perform the check when user wants to retrieve jsons - // (except when it's null.. ?) - if (j.is_null()) - { - JSON_THROW(std::domain_error("type must be array, but is " + j.type_name())); - } - if (not std::is_same::value) - { - if (not j.is_array()) - { - JSON_THROW(std::domain_error("type must be array, but is " + j.type_name())); - } - } - for (auto it = j.rbegin(), end = j.rend(); it != end; ++it) - { - l.push_front(it->template get()); - } -} +#if defined(JSON_HEDLEY_HAS_ATTRIBUTE) + #undef JSON_HEDLEY_HAS_ATTRIBUTE +#endif +#if \ + defined(__has_attribute) && \ + ( \ + (!defined(JSON_HEDLEY_IAR_VERSION) || JSON_HEDLEY_IAR_VERSION_CHECK(8,5,9)) \ + ) +# define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) __has_attribute(attribute) +#else +# define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) (0) +#endif -template -void from_json_array_impl(const BasicJsonType& j, CompatibleArrayType& arr, priority_tag<0>) -{ - using std::begin; - using std::end; +#if defined(JSON_HEDLEY_GNUC_HAS_ATTRIBUTE) + #undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE +#endif +#if defined(__has_attribute) + #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) +#else + #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif - std::transform(j.begin(), j.end(), - std::inserter(arr, end(arr)), [](const BasicJsonType & i) - { - // get() returns *this, this won't call a from_json - // method when value_type is BasicJsonType - return i.template get(); - }); -} +#if defined(JSON_HEDLEY_GCC_HAS_ATTRIBUTE) + #undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE +#endif +#if defined(__has_attribute) + #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) +#else + #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif -template -auto from_json_array_impl(const BasicJsonType& j, CompatibleArrayType& arr, priority_tag<1>) --> decltype( - arr.reserve(std::declval()), - void()) -{ - using std::begin; - using std::end; +#if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE) + #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE +#endif +#if \ + defined(__has_cpp_attribute) && \ + defined(__cplusplus) && \ + (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) __has_cpp_attribute(attribute) +#else + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) (0) +#endif - arr.reserve(j.size()); - std::transform( - j.begin(), j.end(), std::inserter(arr, end(arr)), [](const BasicJsonType & i) - { - // get() returns *this, this won't call a from_json - // method when value_type is BasicJsonType - return i.template get(); - }); -} - -template::value and - not std::is_same::value, int> = 0> -void from_json(const BasicJsonType& j, CompatibleArrayType& arr) -{ - if (j.is_null()) - { - JSON_THROW(std::domain_error("type must be array, but is " + j.type_name())); - } +#if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS) + #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS +#endif +#if !defined(__cplusplus) || !defined(__has_cpp_attribute) + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0) +#elif \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_IAR_VERSION) && \ + (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) && \ + (!defined(JSON_HEDLEY_MSVC_VERSION) || JSON_HEDLEY_MSVC_VERSION_CHECK(19,20,0)) + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(ns::attribute) +#else + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0) +#endif - // when T == BasicJsonType, do not check if value_t is correct - if (not std::is_same::value) - { - if (not j.is_array()) - { - JSON_THROW(std::domain_error("type must be array, but is " + j.type_name())); - } - } - from_json_array_impl(j, arr, priority_tag<1> {}); -} +#if defined(JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE) + #undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE +#endif +#if defined(__has_cpp_attribute) && defined(__cplusplus) + #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute) +#else + #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif -template::value, int> = 0> -void from_json(const BasicJsonType& j, CompatibleObjectType& obj) -{ - if (not j.is_object()) - { - JSON_THROW(std::domain_error("type must be object, but is " + j.type_name())); - } +#if defined(JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE) + #undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE +#endif +#if defined(__has_cpp_attribute) && defined(__cplusplus) + #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute) +#else + #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif - auto inner_object = j.template get_ptr(); - using std::begin; - using std::end; - // we could avoid the assignment, but this might require a for loop, which - // might be less efficient than the container constructor for some - // containers (would it?) - obj = CompatibleObjectType(begin(*inner_object), end(*inner_object)); -} +#if defined(JSON_HEDLEY_HAS_BUILTIN) + #undef JSON_HEDLEY_HAS_BUILTIN +#endif +#if defined(__has_builtin) + #define JSON_HEDLEY_HAS_BUILTIN(builtin) __has_builtin(builtin) +#else + #define JSON_HEDLEY_HAS_BUILTIN(builtin) (0) +#endif -// overload for arithmetic types, not chosen for basic_json template arguments -// (BooleanType, etc..); note: Is it really necessary to provide explicit -// overloads for boolean_t etc. in case of a custom BooleanType which is not -// an arithmetic type? -template::value and - not std::is_same::value and - not std::is_same::value and - not std::is_same::value and - not std::is_same::value, - int> = 0> -void from_json(const BasicJsonType& j, ArithmeticType& val) -{ - switch (static_cast(j)) - { - case value_t::number_unsigned: - { - val = static_cast(*j.template get_ptr()); - break; - } - case value_t::number_integer: - { - val = static_cast(*j.template get_ptr()); - break; - } - case value_t::number_float: - { - val = static_cast(*j.template get_ptr()); - break; - } - case value_t::boolean: - { - val = static_cast(*j.template get_ptr()); - break; - } - default: - { - JSON_THROW(std::domain_error("type must be number, but is " + j.type_name())); - } - } -} +#if defined(JSON_HEDLEY_GNUC_HAS_BUILTIN) + #undef JSON_HEDLEY_GNUC_HAS_BUILTIN +#endif +#if defined(__has_builtin) + #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin) +#else + #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif -struct to_json_fn -{ - private: - template - auto call(BasicJsonType& j, T&& val, priority_tag<1>) const noexcept(noexcept(to_json(j, std::forward(val)))) - -> decltype(to_json(j, std::forward(val)), void()) - { - return to_json(j, std::forward(val)); - } +#if defined(JSON_HEDLEY_GCC_HAS_BUILTIN) + #undef JSON_HEDLEY_GCC_HAS_BUILTIN +#endif +#if defined(__has_builtin) + #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin) +#else + #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif - template - void call(BasicJsonType&, T&&, priority_tag<0>) const noexcept - { - static_assert(sizeof(BasicJsonType) == 0, - "could not find to_json() method in T's namespace"); - } +#if defined(JSON_HEDLEY_HAS_FEATURE) + #undef JSON_HEDLEY_HAS_FEATURE +#endif +#if defined(__has_feature) + #define JSON_HEDLEY_HAS_FEATURE(feature) __has_feature(feature) +#else + #define JSON_HEDLEY_HAS_FEATURE(feature) (0) +#endif - public: - template - void operator()(BasicJsonType& j, T&& val) const - noexcept(noexcept(std::declval().call(j, std::forward(val), priority_tag<1> {}))) - { - return call(j, std::forward(val), priority_tag<1> {}); - } -}; +#if defined(JSON_HEDLEY_GNUC_HAS_FEATURE) + #undef JSON_HEDLEY_GNUC_HAS_FEATURE +#endif +#if defined(__has_feature) + #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature) +#else + #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif -struct from_json_fn -{ - private: - template - auto call(const BasicJsonType& j, T& val, priority_tag<1>) const - noexcept(noexcept(from_json(j, val))) - -> decltype(from_json(j, val), void()) - { - return from_json(j, val); - } +#if defined(JSON_HEDLEY_GCC_HAS_FEATURE) + #undef JSON_HEDLEY_GCC_HAS_FEATURE +#endif +#if defined(__has_feature) + #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature) +#else + #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif - template - void call(const BasicJsonType&, T&, priority_tag<0>) const noexcept - { - static_assert(sizeof(BasicJsonType) == 0, - "could not find from_json() method in T's namespace"); - } +#if defined(JSON_HEDLEY_HAS_EXTENSION) + #undef JSON_HEDLEY_HAS_EXTENSION +#endif +#if defined(__has_extension) + #define JSON_HEDLEY_HAS_EXTENSION(extension) __has_extension(extension) +#else + #define JSON_HEDLEY_HAS_EXTENSION(extension) (0) +#endif - public: - template - void operator()(const BasicJsonType& j, T& val) const - noexcept(noexcept(std::declval().call(j, val, priority_tag<1> {}))) - { - return call(j, val, priority_tag<1> {}); - } -}; +#if defined(JSON_HEDLEY_GNUC_HAS_EXTENSION) + #undef JSON_HEDLEY_GNUC_HAS_EXTENSION +#endif +#if defined(__has_extension) + #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension) +#else + #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif -// taken from ranges-v3 -template -struct static_const -{ - static constexpr T value{}; -}; +#if defined(JSON_HEDLEY_GCC_HAS_EXTENSION) + #undef JSON_HEDLEY_GCC_HAS_EXTENSION +#endif +#if defined(__has_extension) + #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension) +#else + #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif -template -constexpr T static_const::value; -} // namespace detail +#if defined(JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE) + #undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE +#endif +#if defined(__has_declspec_attribute) + #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) __has_declspec_attribute(attribute) +#else + #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) (0) +#endif +#if defined(JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE) + #undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE +#endif +#if defined(__has_declspec_attribute) + #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute) +#else + #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif -/// namespace to hold default `to_json` / `from_json` functions -namespace -{ -constexpr const auto& to_json = detail::static_const::value; -constexpr const auto& from_json = detail::static_const::value; -} +#if defined(JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE) + #undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE +#endif +#if defined(__has_declspec_attribute) + #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute) +#else + #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif +#if defined(JSON_HEDLEY_HAS_WARNING) + #undef JSON_HEDLEY_HAS_WARNING +#endif +#if defined(__has_warning) + #define JSON_HEDLEY_HAS_WARNING(warning) __has_warning(warning) +#else + #define JSON_HEDLEY_HAS_WARNING(warning) (0) +#endif -/*! -@brief default JSONSerializer template argument +#if defined(JSON_HEDLEY_GNUC_HAS_WARNING) + #undef JSON_HEDLEY_GNUC_HAS_WARNING +#endif +#if defined(__has_warning) + #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning) +#else + #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif -This serializer ignores the template arguments and uses ADL -([argument-dependent lookup](http://en.cppreference.com/w/cpp/language/adl)) -for serialization. -*/ -template -struct adl_serializer -{ - /*! - @brief convert a JSON value to any value type +#if defined(JSON_HEDLEY_GCC_HAS_WARNING) + #undef JSON_HEDLEY_GCC_HAS_WARNING +#endif +#if defined(__has_warning) + #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning) +#else + #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif - This function is usually called by the `get()` function of the - @ref basic_json class (either explicit or via conversion operators). +#if \ + (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ + defined(__clang__) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,0,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,17) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(8,0,0) || \ + (JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) && defined(__C99_PRAGMA_OPERATOR)) + #define JSON_HEDLEY_PRAGMA(value) _Pragma(#value) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) + #define JSON_HEDLEY_PRAGMA(value) __pragma(value) +#else + #define JSON_HEDLEY_PRAGMA(value) +#endif - @param[in] j JSON value to read from - @param[in,out] val value to write to - */ - template - static void from_json(BasicJsonType&& j, ValueType& val) noexcept( - noexcept(::nlohmann::from_json(std::forward(j), val))) - { - ::nlohmann::from_json(std::forward(j), val); - } +#if defined(JSON_HEDLEY_DIAGNOSTIC_PUSH) + #undef JSON_HEDLEY_DIAGNOSTIC_PUSH +#endif +#if defined(JSON_HEDLEY_DIAGNOSTIC_POP) + #undef JSON_HEDLEY_DIAGNOSTIC_POP +#endif +#if defined(__clang__) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("clang diagnostic pop") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop") +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH __pragma(warning(push)) + #define JSON_HEDLEY_DIAGNOSTIC_POP __pragma(warning(pop)) +#elif JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("push") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("pop") +#elif \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,4,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("diag_push") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("diag_pop") +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") +#else + #define JSON_HEDLEY_DIAGNOSTIC_PUSH + #define JSON_HEDLEY_DIAGNOSTIC_POP +#endif - /*! - @brief convert any value type to a JSON value +/* JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ is for + HEDLEY INTERNAL USE ONLY. API subject to change without notice. */ +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ +#endif +#if defined(__cplusplus) +# if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat") +# if JSON_HEDLEY_HAS_WARNING("-Wc++17-extensions") +# if JSON_HEDLEY_HAS_WARNING("-Wc++1z-extensions") +# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ + _Pragma("clang diagnostic ignored \"-Wc++1z-extensions\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +# else +# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +# endif +# else +# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +# endif +# endif +#endif +#if !defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(x) x +#endif - This function is usually called by the constructors of the @ref basic_json - class. +#if defined(JSON_HEDLEY_CONST_CAST) + #undef JSON_HEDLEY_CONST_CAST +#endif +#if defined(__cplusplus) +# define JSON_HEDLEY_CONST_CAST(T, expr) (const_cast(expr)) +#elif \ + JSON_HEDLEY_HAS_WARNING("-Wcast-qual") || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) +# define JSON_HEDLEY_CONST_CAST(T, expr) (__extension__ ({ \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL \ + ((T) (expr)); \ + JSON_HEDLEY_DIAGNOSTIC_POP \ + })) +#else +# define JSON_HEDLEY_CONST_CAST(T, expr) ((T) (expr)) +#endif - @param[in,out] j JSON value to write to - @param[in] val value to read from - */ - template - static void to_json(BasicJsonType& j, ValueType&& val) noexcept( - noexcept(::nlohmann::to_json(j, std::forward(val)))) - { - ::nlohmann::to_json(j, std::forward(val)); - } -}; +#if defined(JSON_HEDLEY_REINTERPRET_CAST) + #undef JSON_HEDLEY_REINTERPRET_CAST +#endif +#if defined(__cplusplus) + #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) (reinterpret_cast(expr)) +#else + #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) ((T) (expr)) +#endif +#if defined(JSON_HEDLEY_STATIC_CAST) + #undef JSON_HEDLEY_STATIC_CAST +#endif +#if defined(__cplusplus) + #define JSON_HEDLEY_STATIC_CAST(T, expr) (static_cast(expr)) +#else + #define JSON_HEDLEY_STATIC_CAST(T, expr) ((T) (expr)) +#endif -/*! -@brief a class to store JSON values +#if defined(JSON_HEDLEY_CPP_CAST) + #undef JSON_HEDLEY_CPP_CAST +#endif +#if defined(__cplusplus) +# if JSON_HEDLEY_HAS_WARNING("-Wold-style-cast") +# define JSON_HEDLEY_CPP_CAST(T, expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wold-style-cast\"") \ + ((T) (expr)) \ + JSON_HEDLEY_DIAGNOSTIC_POP +# elif JSON_HEDLEY_IAR_VERSION_CHECK(8,3,0) +# define JSON_HEDLEY_CPP_CAST(T, expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("diag_suppress=Pe137") \ + JSON_HEDLEY_DIAGNOSTIC_POP +# else +# define JSON_HEDLEY_CPP_CAST(T, expr) ((T) (expr)) +# endif +#else +# define JSON_HEDLEY_CPP_CAST(T, expr) (expr) +#endif -@tparam ObjectType type for JSON objects (`std::map` by default; will be used -in @ref object_t) -@tparam ArrayType type for JSON arrays (`std::vector` by default; will be used -in @ref array_t) -@tparam StringType type for JSON strings and object keys (`std::string` by -default; will be used in @ref string_t) -@tparam BooleanType type for JSON booleans (`bool` by default; will be used -in @ref boolean_t) -@tparam NumberIntegerType type for JSON integer numbers (`int64_t` by -default; will be used in @ref number_integer_t) -@tparam NumberUnsignedType type for JSON unsigned integer numbers (@c -`uint64_t` by default; will be used in @ref number_unsigned_t) -@tparam NumberFloatType type for JSON floating-point numbers (`double` by -default; will be used in @ref number_float_t) -@tparam AllocatorType type of the allocator to use (`std::allocator` by -default) -@tparam JSONSerializer the serializer to resolve internal calls to `to_json()` -and `from_json()` (@ref adl_serializer by default) +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wdeprecated-declarations") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warning(disable:1478 1786)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:1478 1786)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1216,1444,1445") +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:4996)) +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") +#elif \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1291,1718") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && !defined(__cplusplus) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,E_DEPRECATED_ATT,E_DEPRECATED_ATT_MESS)") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && defined(__cplusplus) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,symdeprecated,symdeprecated2)") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress=Pe1444,Pe1215") +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warn(disable:2241)") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED +#endif -@requirement The class satisfies the following concept requirements: -- Basic - - [DefaultConstructible](http://en.cppreference.com/w/cpp/concept/DefaultConstructible): - JSON values can be default constructed. The result will be a JSON null - value. - - [MoveConstructible](http://en.cppreference.com/w/cpp/concept/MoveConstructible): - A JSON value can be constructed from an rvalue argument. - - [CopyConstructible](http://en.cppreference.com/w/cpp/concept/CopyConstructible): - A JSON value can be copy-constructed from an lvalue expression. - - [MoveAssignable](http://en.cppreference.com/w/cpp/concept/MoveAssignable): - A JSON value van be assigned from an rvalue argument. - - [CopyAssignable](http://en.cppreference.com/w/cpp/concept/CopyAssignable): - A JSON value can be copy-assigned from an lvalue expression. - - [Destructible](http://en.cppreference.com/w/cpp/concept/Destructible): - JSON values can be destructed. -- Layout - - [StandardLayoutType](http://en.cppreference.com/w/cpp/concept/StandardLayoutType): - JSON values have - [standard layout](http://en.cppreference.com/w/cpp/language/data_members#Standard_layout): - All non-static data members are private and standard layout types, the - class has no virtual functions or (virtual) base classes. -- Library-wide - - [EqualityComparable](http://en.cppreference.com/w/cpp/concept/EqualityComparable): - JSON values can be compared with `==`, see @ref - operator==(const_reference,const_reference). - - [LessThanComparable](http://en.cppreference.com/w/cpp/concept/LessThanComparable): - JSON values can be compared with `<`, see @ref - operator<(const_reference,const_reference). - - [Swappable](http://en.cppreference.com/w/cpp/concept/Swappable): - Any JSON lvalue or rvalue of can be swapped with any lvalue or rvalue of - other compatible types, using unqualified function call @ref swap(). - - [NullablePointer](http://en.cppreference.com/w/cpp/concept/NullablePointer): - JSON values can be compared against `std::nullptr_t` objects which are used - to model the `null` value. -- Container - - [Container](http://en.cppreference.com/w/cpp/concept/Container): - JSON values can be used like STL containers and provide iterator access. - - [ReversibleContainer](http://en.cppreference.com/w/cpp/concept/ReversibleContainer); - JSON values can be used like STL containers and provide reverse iterator - access. +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("clang diagnostic ignored \"-Wunknown-pragmas\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("warning(disable:161)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:161)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 1675") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("GCC diagnostic ignored \"-Wunknown-pragmas\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:4068)) +#elif \ + JSON_HEDLEY_TI_VERSION_CHECK(16,9,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress=Pe161") +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 161") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS +#endif -@invariant The member variables @a m_value and @a m_type have the following -relationship: -- If `m_type == value_t::object`, then `m_value.object != nullptr`. -- If `m_type == value_t::array`, then `m_value.array != nullptr`. -- If `m_type == value_t::string`, then `m_value.string != nullptr`. -The invariants are checked by member function assert_invariant(). +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunknown-attributes") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("clang diagnostic ignored \"-Wunknown-attributes\"") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("warning(disable:1292)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:1292)) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:5030)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097,1098") +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("error_messages(off,attrskipunsup)") +#elif \ + JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1173") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress=Pe1097") +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES +#endif -@internal -@note ObjectType trick from http://stackoverflow.com/a/9860911 -@endinternal +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wcast-qual") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("clang diagnostic ignored \"-Wcast-qual\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("warning(disable:2203 2331)") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("GCC diagnostic ignored \"-Wcast-qual\"") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL +#endif -@see [RFC 7159: The JavaScript Object Notation (JSON) Data Interchange -Format](http://rfc7159.net/rfc7159) +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunused-function") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("clang diagnostic ignored \"-Wunused-function\"") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("GCC diagnostic ignored \"-Wunused-function\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(1,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION __pragma(warning(disable:4505)) +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("diag_suppress 3142") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION +#endif -@since version 1.0.0 +#if defined(JSON_HEDLEY_DEPRECATED) + #undef JSON_HEDLEY_DEPRECATED +#endif +#if defined(JSON_HEDLEY_DEPRECATED_FOR) + #undef JSON_HEDLEY_DEPRECATED_FOR +#endif +#if \ + JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated("Since " # since)) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated("Since " #since "; use " #replacement)) +#elif \ + (JSON_HEDLEY_HAS_EXTENSION(attribute_deprecated_with_message) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(18,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__("Since " #since))) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__("Since " #since "; use " #replacement))) +#elif defined(__cplusplus) && (__cplusplus >= 201402L) + #define JSON_HEDLEY_DEPRECATED(since) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since)]]) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since "; use " #replacement)]]) +#elif \ + JSON_HEDLEY_HAS_ATTRIBUTE(deprecated) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) + #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__)) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__)) +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ + JSON_HEDLEY_PELLES_VERSION_CHECK(6,50,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated) +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DEPRECATED(since) _Pragma("deprecated") + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) _Pragma("deprecated") +#else + #define JSON_HEDLEY_DEPRECATED(since) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) +#endif -@nosubgrouping -*/ -template < - template class ObjectType = std::map, - template class ArrayType = std::vector, - class StringType = std::string, - class BooleanType = bool, - class NumberIntegerType = std::int64_t, - class NumberUnsignedType = std::uint64_t, - class NumberFloatType = double, - template class AllocatorType = std::allocator, - template class JSONSerializer = adl_serializer - > -class basic_json -{ - private: - template friend struct detail::external_constructor; - /// workaround type for MSVC - using basic_json_t = basic_json; +#if defined(JSON_HEDLEY_UNAVAILABLE) + #undef JSON_HEDLEY_UNAVAILABLE +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(warning) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_UNAVAILABLE(available_since) __attribute__((__warning__("Not available until " #available_since))) +#else + #define JSON_HEDLEY_UNAVAILABLE(available_since) +#endif - public: - using value_t = detail::value_t; - // forward declarations - template class iter_impl; - template class json_reverse_iterator; - class json_pointer; - template - using json_serializer = JSONSerializer; +#if defined(JSON_HEDLEY_WARN_UNUSED_RESULT) + #undef JSON_HEDLEY_WARN_UNUSED_RESULT +#endif +#if defined(JSON_HEDLEY_WARN_UNUSED_RESULT_MSG) + #undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(warn_unused_result) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__)) + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) __attribute__((__warn_unused_result__)) +#elif (JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) >= 201907L) + #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard(msg)]]) +#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) + #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) +#elif defined(_Check_return_) /* SAL */ + #define JSON_HEDLEY_WARN_UNUSED_RESULT _Check_return_ + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) _Check_return_ +#else + #define JSON_HEDLEY_WARN_UNUSED_RESULT + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) +#endif - ///////////////////// - // container types // - ///////////////////// +#if defined(JSON_HEDLEY_SENTINEL) + #undef JSON_HEDLEY_SENTINEL +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(sentinel) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_SENTINEL(position) __attribute__((__sentinel__(position))) +#else + #define JSON_HEDLEY_SENTINEL(position) +#endif - /// @name container types - /// The canonic container types to use @ref basic_json like any other STL - /// container. - /// @{ +#if defined(JSON_HEDLEY_NO_RETURN) + #undef JSON_HEDLEY_NO_RETURN +#endif +#if JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_NO_RETURN __noreturn +#elif \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) +#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L + #define JSON_HEDLEY_NO_RETURN _Noreturn +#elif defined(__cplusplus) && (__cplusplus >= 201103L) + #define JSON_HEDLEY_NO_RETURN JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[noreturn]]) +#elif \ + JSON_HEDLEY_HAS_ATTRIBUTE(noreturn) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,2,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) + #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) + #define JSON_HEDLEY_NO_RETURN _Pragma("does_not_return") +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_NO_RETURN __declspec(noreturn) +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus) + #define JSON_HEDLEY_NO_RETURN _Pragma("FUNC_NEVER_RETURNS;") +#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0) + #define JSON_HEDLEY_NO_RETURN __attribute((noreturn)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0) + #define JSON_HEDLEY_NO_RETURN __declspec(noreturn) +#else + #define JSON_HEDLEY_NO_RETURN +#endif - /// the type of elements in a basic_json container - using value_type = basic_json; +#if defined(JSON_HEDLEY_NO_ESCAPE) + #undef JSON_HEDLEY_NO_ESCAPE +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(noescape) + #define JSON_HEDLEY_NO_ESCAPE __attribute__((__noescape__)) +#else + #define JSON_HEDLEY_NO_ESCAPE +#endif - /// the type of an element reference - using reference = value_type&; - /// the type of an element const reference - using const_reference = const value_type&; +#if defined(JSON_HEDLEY_UNREACHABLE) + #undef JSON_HEDLEY_UNREACHABLE +#endif +#if defined(JSON_HEDLEY_UNREACHABLE_RETURN) + #undef JSON_HEDLEY_UNREACHABLE_RETURN +#endif +#if defined(JSON_HEDLEY_ASSUME) + #undef JSON_HEDLEY_ASSUME +#endif +#if \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_ASSUME(expr) __assume(expr) +#elif JSON_HEDLEY_HAS_BUILTIN(__builtin_assume) + #define JSON_HEDLEY_ASSUME(expr) __builtin_assume(expr) +#elif \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) + #if defined(__cplusplus) + #define JSON_HEDLEY_ASSUME(expr) std::_nassert(expr) + #else + #define JSON_HEDLEY_ASSUME(expr) _nassert(expr) + #endif +#endif +#if \ + (JSON_HEDLEY_HAS_BUILTIN(__builtin_unreachable) && (!defined(JSON_HEDLEY_ARM_VERSION))) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18,10,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13,1,5) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(10,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_UNREACHABLE() __builtin_unreachable() +#elif defined(JSON_HEDLEY_ASSUME) + #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) +#endif +#if !defined(JSON_HEDLEY_ASSUME) + #if defined(JSON_HEDLEY_UNREACHABLE) + #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, ((expr) ? 1 : (JSON_HEDLEY_UNREACHABLE(), 1))) + #else + #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, expr) + #endif +#endif +#if defined(JSON_HEDLEY_UNREACHABLE) + #if \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) + #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (JSON_HEDLEY_STATIC_CAST(void, JSON_HEDLEY_ASSUME(0)), (value)) + #else + #define JSON_HEDLEY_UNREACHABLE_RETURN(value) JSON_HEDLEY_UNREACHABLE() + #endif +#else + #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (value) +#endif +#if !defined(JSON_HEDLEY_UNREACHABLE) + #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) +#endif - /// a type to represent differences between iterators - using difference_type = std::ptrdiff_t; - /// a type to represent container sizes - using size_type = std::size_t; +JSON_HEDLEY_DIAGNOSTIC_PUSH +#if JSON_HEDLEY_HAS_WARNING("-Wpedantic") + #pragma clang diagnostic ignored "-Wpedantic" +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat-pedantic") && defined(__cplusplus) + #pragma clang diagnostic ignored "-Wc++98-compat-pedantic" +#endif +#if JSON_HEDLEY_GCC_HAS_WARNING("-Wvariadic-macros",4,0,0) + #if defined(__clang__) + #pragma clang diagnostic ignored "-Wvariadic-macros" + #elif defined(JSON_HEDLEY_GCC_VERSION) + #pragma GCC diagnostic ignored "-Wvariadic-macros" + #endif +#endif +#if defined(JSON_HEDLEY_NON_NULL) + #undef JSON_HEDLEY_NON_NULL +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(nonnull) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) + #define JSON_HEDLEY_NON_NULL(...) __attribute__((__nonnull__(__VA_ARGS__))) +#else + #define JSON_HEDLEY_NON_NULL(...) +#endif +JSON_HEDLEY_DIAGNOSTIC_POP - /// the allocator type - using allocator_type = AllocatorType; +#if defined(JSON_HEDLEY_PRINTF_FORMAT) + #undef JSON_HEDLEY_PRINTF_FORMAT +#endif +#if defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && !defined(__USE_MINGW_ANSI_STDIO) + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(ms_printf, string_idx, first_to_check))) +#elif defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && defined(__USE_MINGW_ANSI_STDIO) + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(gnu_printf, string_idx, first_to_check))) +#elif \ + JSON_HEDLEY_HAS_ATTRIBUTE(format) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(__printf__, string_idx, first_to_check))) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(6,0,0) + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __declspec(vaformat(printf,string_idx,first_to_check)) +#else + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) +#endif - /// the type of an element pointer - using pointer = typename std::allocator_traits::pointer; - /// the type of an element const pointer - using const_pointer = typename std::allocator_traits::const_pointer; +#if defined(JSON_HEDLEY_CONSTEXPR) + #undef JSON_HEDLEY_CONSTEXPR +#endif +#if defined(__cplusplus) + #if __cplusplus >= 201103L + #define JSON_HEDLEY_CONSTEXPR JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(constexpr) + #endif +#endif +#if !defined(JSON_HEDLEY_CONSTEXPR) + #define JSON_HEDLEY_CONSTEXPR +#endif - /// an iterator for a basic_json container - using iterator = iter_impl; - /// a const iterator for a basic_json container - using const_iterator = iter_impl; - /// a reverse iterator for a basic_json container - using reverse_iterator = json_reverse_iterator; - /// a const reverse iterator for a basic_json container - using const_reverse_iterator = json_reverse_iterator; +#if defined(JSON_HEDLEY_PREDICT) + #undef JSON_HEDLEY_PREDICT +#endif +#if defined(JSON_HEDLEY_LIKELY) + #undef JSON_HEDLEY_LIKELY +#endif +#if defined(JSON_HEDLEY_UNLIKELY) + #undef JSON_HEDLEY_UNLIKELY +#endif +#if defined(JSON_HEDLEY_UNPREDICTABLE) + #undef JSON_HEDLEY_UNPREDICTABLE +#endif +#if JSON_HEDLEY_HAS_BUILTIN(__builtin_unpredictable) + #define JSON_HEDLEY_UNPREDICTABLE(expr) __builtin_unpredictable((expr)) +#endif +#if \ + (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect_with_probability) && !defined(JSON_HEDLEY_PGI_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(9,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) +# define JSON_HEDLEY_PREDICT(expr, value, probability) __builtin_expect_with_probability( (expr), (value), (probability)) +# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) __builtin_expect_with_probability(!!(expr), 1 , (probability)) +# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) __builtin_expect_with_probability(!!(expr), 0 , (probability)) +# define JSON_HEDLEY_LIKELY(expr) __builtin_expect (!!(expr), 1 ) +# define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect (!!(expr), 0 ) +#elif \ + (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,27) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) +# define JSON_HEDLEY_PREDICT(expr, expected, probability) \ + (((probability) >= 0.9) ? __builtin_expect((expr), (expected)) : (JSON_HEDLEY_STATIC_CAST(void, expected), (expr))) +# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) \ + (__extension__ ({ \ + double hedley_probability_ = (probability); \ + ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 1) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 0) : !!(expr))); \ + })) +# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) \ + (__extension__ ({ \ + double hedley_probability_ = (probability); \ + ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 0) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 1) : !!(expr))); \ + })) +# define JSON_HEDLEY_LIKELY(expr) __builtin_expect(!!(expr), 1) +# define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0) +#else +# define JSON_HEDLEY_PREDICT(expr, expected, probability) (JSON_HEDLEY_STATIC_CAST(void, expected), (expr)) +# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) (!!(expr)) +# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) (!!(expr)) +# define JSON_HEDLEY_LIKELY(expr) (!!(expr)) +# define JSON_HEDLEY_UNLIKELY(expr) (!!(expr)) +#endif +#if !defined(JSON_HEDLEY_UNPREDICTABLE) + #define JSON_HEDLEY_UNPREDICTABLE(expr) JSON_HEDLEY_PREDICT(expr, 1, 0.5) +#endif - /// @} +#if defined(JSON_HEDLEY_MALLOC) + #undef JSON_HEDLEY_MALLOC +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(malloc) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_MALLOC __attribute__((__malloc__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) + #define JSON_HEDLEY_MALLOC _Pragma("returns_new_memory") +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_MALLOC __declspec(restrict) +#else + #define JSON_HEDLEY_MALLOC +#endif +#if defined(JSON_HEDLEY_PURE) + #undef JSON_HEDLEY_PURE +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(pure) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(2,96,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) +# define JSON_HEDLEY_PURE __attribute__((__pure__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) +# define JSON_HEDLEY_PURE _Pragma("does_not_write_global_data") +#elif defined(__cplusplus) && \ + ( \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) \ + ) +# define JSON_HEDLEY_PURE _Pragma("FUNC_IS_PURE;") +#else +# define JSON_HEDLEY_PURE +#endif - /*! - @brief returns the allocator associated with the container - */ - static allocator_type get_allocator() - { - return allocator_type(); - } +#if defined(JSON_HEDLEY_CONST) + #undef JSON_HEDLEY_CONST +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(const) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(2,5,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_CONST __attribute__((__const__)) +#elif \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) + #define JSON_HEDLEY_CONST _Pragma("no_side_effect") +#else + #define JSON_HEDLEY_CONST JSON_HEDLEY_PURE +#endif - /*! - @brief returns version information on the library +#if defined(JSON_HEDLEY_RESTRICT) + #undef JSON_HEDLEY_RESTRICT +#endif +#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && !defined(__cplusplus) + #define JSON_HEDLEY_RESTRICT restrict +#elif \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,4) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus)) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \ + defined(__clang__) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_RESTRICT __restrict +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,3,0) && !defined(__cplusplus) + #define JSON_HEDLEY_RESTRICT _Restrict +#else + #define JSON_HEDLEY_RESTRICT +#endif - This function returns a JSON object with information about the library, - including the version number and information on the platform and compiler. +#if defined(JSON_HEDLEY_INLINE) + #undef JSON_HEDLEY_INLINE +#endif +#if \ + (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ + (defined(__cplusplus) && (__cplusplus >= 199711L)) + #define JSON_HEDLEY_INLINE inline +#elif \ + defined(JSON_HEDLEY_GCC_VERSION) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(6,2,0) + #define JSON_HEDLEY_INLINE __inline__ +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,1,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_INLINE __inline +#else + #define JSON_HEDLEY_INLINE +#endif - @return JSON object holding version information - key | description - ----------- | --------------- - `compiler` | Information on the used compiler. It is an object with the following keys: `c++` (the used C++ standard), `family` (the compiler family; possible values are `clang`, `icc`, `gcc`, `ilecpp`, `msvc`, `pgcpp`, `sunpro`, and `unknown`), and `version` (the compiler version). - `copyright` | The copyright line for the library as string. - `name` | The name of the library as string. - `platform` | The used platform as string. Possible values are `win32`, `linux`, `apple`, `unix`, and `unknown`. - `url` | The URL of the project as string. - `version` | The version of the library. It is an object with the following keys: `major`, `minor`, and `patch` as defined by [Semantic Versioning](http://semver.org), and `string` (the version string). +#if defined(JSON_HEDLEY_ALWAYS_INLINE) + #undef JSON_HEDLEY_ALWAYS_INLINE +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(always_inline) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) +# define JSON_HEDLEY_ALWAYS_INLINE __attribute__((__always_inline__)) JSON_HEDLEY_INLINE +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) +# define JSON_HEDLEY_ALWAYS_INLINE __forceinline +#elif defined(__cplusplus) && \ + ( \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) \ + ) +# define JSON_HEDLEY_ALWAYS_INLINE _Pragma("FUNC_ALWAYS_INLINE;") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) +# define JSON_HEDLEY_ALWAYS_INLINE _Pragma("inline=forced") +#else +# define JSON_HEDLEY_ALWAYS_INLINE JSON_HEDLEY_INLINE +#endif - @liveexample{The following code shows an example output of the `meta()` - function.,meta} +#if defined(JSON_HEDLEY_NEVER_INLINE) + #undef JSON_HEDLEY_NEVER_INLINE +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(noinline) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) + #define JSON_HEDLEY_NEVER_INLINE __attribute__((__noinline__)) +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(10,2,0) + #define JSON_HEDLEY_NEVER_INLINE _Pragma("noinline") +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus) + #define JSON_HEDLEY_NEVER_INLINE _Pragma("FUNC_CANNOT_INLINE;") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_NEVER_INLINE _Pragma("inline=never") +#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0) + #define JSON_HEDLEY_NEVER_INLINE __attribute((noinline)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0) + #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) +#else + #define JSON_HEDLEY_NEVER_INLINE +#endif - @complexity Constant. +#if defined(JSON_HEDLEY_PRIVATE) + #undef JSON_HEDLEY_PRIVATE +#endif +#if defined(JSON_HEDLEY_PUBLIC) + #undef JSON_HEDLEY_PUBLIC +#endif +#if defined(JSON_HEDLEY_IMPORT) + #undef JSON_HEDLEY_IMPORT +#endif +#if defined(_WIN32) || defined(__CYGWIN__) +# define JSON_HEDLEY_PRIVATE +# define JSON_HEDLEY_PUBLIC __declspec(dllexport) +# define JSON_HEDLEY_IMPORT __declspec(dllimport) +#else +# if \ + JSON_HEDLEY_HAS_ATTRIBUTE(visibility) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ + ( \ + defined(__TI_EABI__) && \ + ( \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) \ + ) \ + ) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) +# define JSON_HEDLEY_PRIVATE __attribute__((__visibility__("hidden"))) +# define JSON_HEDLEY_PUBLIC __attribute__((__visibility__("default"))) +# else +# define JSON_HEDLEY_PRIVATE +# define JSON_HEDLEY_PUBLIC +# endif +# define JSON_HEDLEY_IMPORT extern +#endif - @since 2.1.0 - */ - static basic_json meta() - { - basic_json result; +#if defined(JSON_HEDLEY_NO_THROW) + #undef JSON_HEDLEY_NO_THROW +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(nothrow) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_NO_THROW __attribute__((__nothrow__)) +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,1,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) + #define JSON_HEDLEY_NO_THROW __declspec(nothrow) +#else + #define JSON_HEDLEY_NO_THROW +#endif - result["copyright"] = "(C) 2013-2017 Niels Lohmann"; - result["name"] = "JSON for Modern C++"; - result["url"] = "https://github.com/nlohmann/json"; - result["version"] = - { - {"string", "2.1.1"}, - {"major", 2}, - {"minor", 1}, - {"patch", 1} - }; +#if defined(JSON_HEDLEY_FALL_THROUGH) + #undef JSON_HEDLEY_FALL_THROUGH +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(fallthrough) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(7,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_FALL_THROUGH __attribute__((__fallthrough__)) +#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(clang,fallthrough) + #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[clang::fallthrough]]) +#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(fallthrough) + #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[fallthrough]]) +#elif defined(__fallthrough) /* SAL */ + #define JSON_HEDLEY_FALL_THROUGH __fallthrough +#else + #define JSON_HEDLEY_FALL_THROUGH +#endif -#ifdef _WIN32 - result["platform"] = "win32"; -#elif defined __linux__ - result["platform"] = "linux"; -#elif defined __APPLE__ - result["platform"] = "apple"; -#elif defined __unix__ - result["platform"] = "unix"; +#if defined(JSON_HEDLEY_RETURNS_NON_NULL) + #undef JSON_HEDLEY_RETURNS_NON_NULL +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(returns_nonnull) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_RETURNS_NON_NULL __attribute__((__returns_nonnull__)) +#elif defined(_Ret_notnull_) /* SAL */ + #define JSON_HEDLEY_RETURNS_NON_NULL _Ret_notnull_ #else - result["platform"] = "unknown"; + #define JSON_HEDLEY_RETURNS_NON_NULL #endif -#if defined(__clang__) - result["compiler"] = {{"family", "clang"}, {"version", __clang_version__}}; -#elif defined(__ICC) || defined(__INTEL_COMPILER) - result["compiler"] = {{"family", "icc"}, {"version", __INTEL_COMPILER}}; -#elif defined(__GNUC__) || defined(__GNUG__) - result["compiler"] = {{"family", "gcc"}, {"version", std::to_string(__GNUC__) + "." + std::to_string(__GNUC_MINOR__) + "." + std::to_string(__GNUC_PATCHLEVEL__)}}; -#elif defined(__HP_cc) || defined(__HP_aCC) - result["compiler"] = "hp" -#elif defined(__IBMCPP__) - result["compiler"] = {{"family", "ilecpp"}, {"version", __IBMCPP__}}; -#elif defined(_MSC_VER) - result["compiler"] = {{"family", "msvc"}, {"version", _MSC_VER}}; -#elif defined(__PGI) - result["compiler"] = {{"family", "pgcpp"}, {"version", __PGI}}; -#elif defined(__SUNPRO_CC) - result["compiler"] = {{"family", "sunpro"}, {"version", __SUNPRO_CC}}; +#if defined(JSON_HEDLEY_ARRAY_PARAM) + #undef JSON_HEDLEY_ARRAY_PARAM +#endif +#if \ + defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ + !defined(__STDC_NO_VLA__) && \ + !defined(__cplusplus) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_TINYC_VERSION) + #define JSON_HEDLEY_ARRAY_PARAM(name) (name) #else - result["compiler"] = {{"family", "unknown"}, {"version", "unknown"}}; + #define JSON_HEDLEY_ARRAY_PARAM(name) #endif -#ifdef __cplusplus - result["compiler"]["c++"] = std::to_string(__cplusplus); +#if defined(JSON_HEDLEY_IS_CONSTANT) + #undef JSON_HEDLEY_IS_CONSTANT +#endif +#if defined(JSON_HEDLEY_REQUIRE_CONSTEXPR) + #undef JSON_HEDLEY_REQUIRE_CONSTEXPR +#endif +/* JSON_HEDLEY_IS_CONSTEXPR_ is for + HEDLEY INTERNAL USE ONLY. API subject to change without notice. */ +#if defined(JSON_HEDLEY_IS_CONSTEXPR_) + #undef JSON_HEDLEY_IS_CONSTEXPR_ +#endif +#if \ + JSON_HEDLEY_HAS_BUILTIN(__builtin_constant_p) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,19) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) && !defined(__cplusplus)) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_IS_CONSTANT(expr) __builtin_constant_p(expr) +#endif +#if !defined(__cplusplus) +# if \ + JSON_HEDLEY_HAS_BUILTIN(__builtin_types_compatible_p) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,24) +#if defined(__INTPTR_TYPE__) + #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0)), int*) #else - result["compiler"]["c++"] = "unknown"; + #include + #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((intptr_t) ((expr) * 0)) : (int*) 0)), int*) +#endif +# elif \ + ( \ + defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && \ + !defined(JSON_HEDLEY_SUNPRO_VERSION) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_IAR_VERSION)) || \ + (JSON_HEDLEY_HAS_EXTENSION(c_generic_selections) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,3,0) +#if defined(__INTPTR_TYPE__) + #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0), int*: 1, void*: 0) +#else + #include + #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((intptr_t) * 0) : (int*) 0), int*: 1, void*: 0) +#endif +# elif \ + defined(JSON_HEDLEY_GCC_VERSION) || \ + defined(JSON_HEDLEY_INTEL_VERSION) || \ + defined(JSON_HEDLEY_TINYC_VERSION) || \ + defined(JSON_HEDLEY_TI_ARMCL_VERSION) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(18,12,0) || \ + defined(JSON_HEDLEY_TI_CL2000_VERSION) || \ + defined(JSON_HEDLEY_TI_CL6X_VERSION) || \ + defined(JSON_HEDLEY_TI_CL7X_VERSION) || \ + defined(JSON_HEDLEY_TI_CLPRU_VERSION) || \ + defined(__clang__) +# define JSON_HEDLEY_IS_CONSTEXPR_(expr) ( \ + sizeof(void) != \ + sizeof(*( \ + 1 ? \ + ((void*) ((expr) * 0L) ) : \ +((struct { char v[sizeof(void) * 2]; } *) 1) \ + ) \ + ) \ + ) +# endif +#endif +#if defined(JSON_HEDLEY_IS_CONSTEXPR_) + #if !defined(JSON_HEDLEY_IS_CONSTANT) + #define JSON_HEDLEY_IS_CONSTANT(expr) JSON_HEDLEY_IS_CONSTEXPR_(expr) + #endif + #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (JSON_HEDLEY_IS_CONSTEXPR_(expr) ? (expr) : (-1)) +#else + #if !defined(JSON_HEDLEY_IS_CONSTANT) + #define JSON_HEDLEY_IS_CONSTANT(expr) (0) + #endif + #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (expr) #endif - return result; - } +#if defined(JSON_HEDLEY_BEGIN_C_DECLS) + #undef JSON_HEDLEY_BEGIN_C_DECLS +#endif +#if defined(JSON_HEDLEY_END_C_DECLS) + #undef JSON_HEDLEY_END_C_DECLS +#endif +#if defined(JSON_HEDLEY_C_DECL) + #undef JSON_HEDLEY_C_DECL +#endif +#if defined(__cplusplus) + #define JSON_HEDLEY_BEGIN_C_DECLS extern "C" { + #define JSON_HEDLEY_END_C_DECLS } + #define JSON_HEDLEY_C_DECL extern "C" +#else + #define JSON_HEDLEY_BEGIN_C_DECLS + #define JSON_HEDLEY_END_C_DECLS + #define JSON_HEDLEY_C_DECL +#endif - /////////////////////////// - // JSON value data types // - /////////////////////////// +#if defined(JSON_HEDLEY_STATIC_ASSERT) + #undef JSON_HEDLEY_STATIC_ASSERT +#endif +#if \ + !defined(__cplusplus) && ( \ + (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)) || \ + (JSON_HEDLEY_HAS_FEATURE(c_static_assert) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(6,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + defined(_Static_assert) \ + ) +# define JSON_HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message) +#elif \ + (defined(__cplusplus) && (__cplusplus >= 201103L)) || \ + JSON_HEDLEY_MSVC_VERSION_CHECK(16,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) +# define JSON_HEDLEY_STATIC_ASSERT(expr, message) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(static_assert(expr, message)) +#else +# define JSON_HEDLEY_STATIC_ASSERT(expr, message) +#endif - /// @name JSON value data types - /// The data types to store a JSON value. These types are derived from - /// the template arguments passed to class @ref basic_json. - /// @{ +#if defined(JSON_HEDLEY_NULL) + #undef JSON_HEDLEY_NULL +#endif +#if defined(__cplusplus) + #if __cplusplus >= 201103L + #define JSON_HEDLEY_NULL JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(nullptr) + #elif defined(NULL) + #define JSON_HEDLEY_NULL NULL + #else + #define JSON_HEDLEY_NULL JSON_HEDLEY_STATIC_CAST(void*, 0) + #endif +#elif defined(NULL) + #define JSON_HEDLEY_NULL NULL +#else + #define JSON_HEDLEY_NULL ((void*) 0) +#endif - /*! - @brief a type for an object +#if defined(JSON_HEDLEY_MESSAGE) + #undef JSON_HEDLEY_MESSAGE +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") +# define JSON_HEDLEY_MESSAGE(msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \ + JSON_HEDLEY_PRAGMA(message msg) \ + JSON_HEDLEY_DIAGNOSTIC_POP +#elif \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) +# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message msg) +#elif JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) +# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(_CRI message msg) +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) +# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,0,0) +# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#else +# define JSON_HEDLEY_MESSAGE(msg) +#endif - [RFC 7159](http://rfc7159.net/rfc7159) describes JSON objects as follows: - > An object is an unordered collection of zero or more name/value pairs, - > where a name is a string and a value is a string, number, boolean, null, - > object, or array. +#if defined(JSON_HEDLEY_WARNING) + #undef JSON_HEDLEY_WARNING +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") +# define JSON_HEDLEY_WARNING(msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \ + JSON_HEDLEY_PRAGMA(clang warning msg) \ + JSON_HEDLEY_DIAGNOSTIC_POP +#elif \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,8,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) +# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(GCC warning msg) +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) +# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#else +# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_MESSAGE(msg) +#endif - To store objects in C++, a type is defined by the template parameters - described below. +#if defined(JSON_HEDLEY_REQUIRE) + #undef JSON_HEDLEY_REQUIRE +#endif +#if defined(JSON_HEDLEY_REQUIRE_MSG) + #undef JSON_HEDLEY_REQUIRE_MSG +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(diagnose_if) +# if JSON_HEDLEY_HAS_WARNING("-Wgcc-compat") +# define JSON_HEDLEY_REQUIRE(expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ + __attribute__((diagnose_if(!(expr), #expr, "error"))) \ + JSON_HEDLEY_DIAGNOSTIC_POP +# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ + __attribute__((diagnose_if(!(expr), msg, "error"))) \ + JSON_HEDLEY_DIAGNOSTIC_POP +# else +# define JSON_HEDLEY_REQUIRE(expr) __attribute__((diagnose_if(!(expr), #expr, "error"))) +# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) __attribute__((diagnose_if(!(expr), msg, "error"))) +# endif +#else +# define JSON_HEDLEY_REQUIRE(expr) +# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) +#endif - @tparam ObjectType the container to store objects (e.g., `std::map` or - `std::unordered_map`) - @tparam StringType the type of the keys or names (e.g., `std::string`). - The comparison function `std::less` is used to order elements - inside the container. - @tparam AllocatorType the allocator to use for objects (e.g., - `std::allocator`) +#if defined(JSON_HEDLEY_FLAGS) + #undef JSON_HEDLEY_FLAGS +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(flag_enum) && (!defined(__cplusplus) || JSON_HEDLEY_HAS_WARNING("-Wbitfield-enum-conversion")) + #define JSON_HEDLEY_FLAGS __attribute__((__flag_enum__)) +#else + #define JSON_HEDLEY_FLAGS +#endif - #### Default type +#if defined(JSON_HEDLEY_FLAGS_CAST) + #undef JSON_HEDLEY_FLAGS_CAST +#endif +#if JSON_HEDLEY_INTEL_VERSION_CHECK(19,0,0) +# define JSON_HEDLEY_FLAGS_CAST(T, expr) (__extension__ ({ \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("warning(disable:188)") \ + ((T) (expr)); \ + JSON_HEDLEY_DIAGNOSTIC_POP \ + })) +#else +# define JSON_HEDLEY_FLAGS_CAST(T, expr) JSON_HEDLEY_STATIC_CAST(T, expr) +#endif - With the default values for @a ObjectType (`std::map`), @a StringType - (`std::string`), and @a AllocatorType (`std::allocator`), the default - value for @a object_t is: +#if defined(JSON_HEDLEY_EMPTY_BASES) + #undef JSON_HEDLEY_EMPTY_BASES +#endif +#if \ + (JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,23918) && !JSON_HEDLEY_MSVC_VERSION_CHECK(20,0,0)) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_EMPTY_BASES __declspec(empty_bases) +#else + #define JSON_HEDLEY_EMPTY_BASES +#endif - @code {.cpp} - std::map< - std::string, // key_type - basic_json, // value_type - std::less, // key_compare - std::allocator> // allocator_type - > - @endcode +/* Remaining macros are deprecated. */ - #### Behavior +#if defined(JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK) + #undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK +#endif +#if defined(__clang__) + #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) (0) +#else + #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif - The choice of @a object_t influences the behavior of the JSON class. With - the default type, objects have the following behavior: +#if defined(JSON_HEDLEY_CLANG_HAS_ATTRIBUTE) + #undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE +#endif +#define JSON_HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) - - When all names are unique, objects will be interoperable in the sense - that all software implementations receiving that object will agree on - the name-value mappings. - - When the names within an object are not unique, later stored name/value - pairs overwrite previously stored name/value pairs, leaving the used - names unique. For instance, `{"key": 1}` and `{"key": 2, "key": 1}` will - be treated as equal and both stored as `{"key": 1}`. - - Internally, name/value pairs are stored in lexicographical order of the - names. Objects will also be serialized (see @ref dump) in this order. - For instance, `{"b": 1, "a": 2}` and `{"a": 2, "b": 1}` will be stored - and serialized as `{"a": 2, "b": 1}`. - - When comparing objects, the order of the name/value pairs is irrelevant. - This makes objects interoperable in the sense that they will not be - affected by these differences. For instance, `{"b": 1, "a": 2}` and - `{"a": 2, "b": 1}` will be treated as equal. +#if defined(JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE) + #undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE +#endif +#define JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) - #### Limits +#if defined(JSON_HEDLEY_CLANG_HAS_BUILTIN) + #undef JSON_HEDLEY_CLANG_HAS_BUILTIN +#endif +#define JSON_HEDLEY_CLANG_HAS_BUILTIN(builtin) JSON_HEDLEY_HAS_BUILTIN(builtin) - [RFC 7159](http://rfc7159.net/rfc7159) specifies: - > An implementation may set limits on the maximum depth of nesting. +#if defined(JSON_HEDLEY_CLANG_HAS_FEATURE) + #undef JSON_HEDLEY_CLANG_HAS_FEATURE +#endif +#define JSON_HEDLEY_CLANG_HAS_FEATURE(feature) JSON_HEDLEY_HAS_FEATURE(feature) - In this class, the object's limit of nesting is not constraint explicitly. - However, a maximum depth of nesting may be introduced by the compiler or - runtime environment. A theoretical limit can be queried by calling the - @ref max_size function of a JSON object. +#if defined(JSON_HEDLEY_CLANG_HAS_EXTENSION) + #undef JSON_HEDLEY_CLANG_HAS_EXTENSION +#endif +#define JSON_HEDLEY_CLANG_HAS_EXTENSION(extension) JSON_HEDLEY_HAS_EXTENSION(extension) - #### Storage +#if defined(JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE) + #undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE +#endif +#define JSON_HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) - Objects are stored as pointers in a @ref basic_json type. That is, for any - access to object values, a pointer of type `object_t*` must be - dereferenced. +#if defined(JSON_HEDLEY_CLANG_HAS_WARNING) + #undef JSON_HEDLEY_CLANG_HAS_WARNING +#endif +#define JSON_HEDLEY_CLANG_HAS_WARNING(warning) JSON_HEDLEY_HAS_WARNING(warning) - @sa @ref array_t -- type for an array value +#endif /* !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < X) */ - @since version 1.0.0 +// #include - @note The order name/value pairs are added to the object is *not* - preserved by the library. Therefore, iterating an object may return - name/value pairs in a different order than they were originally stored. In - fact, keys will be traversed in alphabetical order as `std::map` with - `std::less` is used by default. Please note this behavior conforms to [RFC - 7159](http://rfc7159.net/rfc7159), because any order implements the - specified "unordered" nature of JSON objects. - */ - using object_t = ObjectType, - AllocatorType>>; - /*! - @brief a type for an array +#include - [RFC 7159](http://rfc7159.net/rfc7159) describes JSON arrays as follows: - > An array is an ordered sequence of zero or more values. +// #include - To store objects in C++, a type is defined by the template parameters - explained below. - @tparam ArrayType container type to store arrays (e.g., `std::vector` or - `std::list`) - @tparam AllocatorType allocator to use for arrays (e.g., `std::allocator`) +namespace nlohmann +{ +namespace detail +{ +template struct make_void +{ + using type = void; +}; +template using void_t = typename make_void::type; +} // namespace detail +} // namespace nlohmann - #### Default type - With the default values for @a ArrayType (`std::vector`) and @a - AllocatorType (`std::allocator`), the default value for @a array_t is: +// https://en.cppreference.com/w/cpp/experimental/is_detected +namespace nlohmann +{ +namespace detail +{ +struct nonesuch +{ + nonesuch() = delete; + ~nonesuch() = delete; + nonesuch(nonesuch const&) = delete; + nonesuch(nonesuch const&&) = delete; + void operator=(nonesuch const&) = delete; + void operator=(nonesuch&&) = delete; +}; - @code {.cpp} - std::vector< - basic_json, // value_type - std::allocator // allocator_type - > - @endcode +template class Op, + class... Args> +struct detector +{ + using value_t = std::false_type; + using type = Default; +}; - #### Limits +template class Op, class... Args> +struct detector>, Op, Args...> +{ + using value_t = std::true_type; + using type = Op; +}; - [RFC 7159](http://rfc7159.net/rfc7159) specifies: - > An implementation may set limits on the maximum depth of nesting. +template class Op, class... Args> +using is_detected = typename detector::value_t; - In this class, the array's limit of nesting is not constraint explicitly. - However, a maximum depth of nesting may be introduced by the compiler or - runtime environment. A theoretical limit can be queried by calling the - @ref max_size function of a JSON array. +template class Op, class... Args> +struct is_detected_lazy : is_detected { }; - #### Storage +template class Op, class... Args> +using detected_t = typename detector::type; - Arrays are stored as pointers in a @ref basic_json type. That is, for any - access to array values, a pointer of type `array_t*` must be dereferenced. +template class Op, class... Args> +using detected_or = detector; - @sa @ref object_t -- type for an object value +template class Op, class... Args> +using detected_or_t = typename detected_or::type; - @since version 1.0.0 - */ - using array_t = ArrayType>; +template class Op, class... Args> +using is_detected_exact = std::is_same>; - /*! - @brief a type for a string +template class Op, class... Args> +using is_detected_convertible = + std::is_convertible, To>; +} // namespace detail +} // namespace nlohmann - [RFC 7159](http://rfc7159.net/rfc7159) describes JSON strings as follows: - > A string is a sequence of zero or more Unicode characters. - To store objects in C++, a type is defined by the template parameter - described below. Unicode values are split by the JSON class into - byte-sized characters during deserialization. +// This file contains all internal macro definitions +// You MUST include macro_unscope.hpp at the end of json.hpp to undef all of them - @tparam StringType the container to store strings (e.g., `std::string`). - Note this container is used for keys/names in objects, see @ref object_t. +// exclude unsupported compilers +#if !defined(JSON_SKIP_UNSUPPORTED_COMPILER_CHECK) + #if defined(__clang__) + #if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400 + #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers" + #endif + #elif defined(__GNUC__) && !(defined(__ICC) || defined(__INTEL_COMPILER)) + #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40800 + #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers" + #endif + #endif +#endif - #### Default type +// C++ language standard detection +// if the user manually specified the used c++ version this is skipped +#if !defined(JSON_HAS_CPP_20) && !defined(JSON_HAS_CPP_17) && !defined(JSON_HAS_CPP_14) && !defined(JSON_HAS_CPP_11) + #if (defined(__cplusplus) && __cplusplus >= 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L) + #define JSON_HAS_CPP_20 + #define JSON_HAS_CPP_17 + #define JSON_HAS_CPP_14 + #elif (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464 + #define JSON_HAS_CPP_17 + #define JSON_HAS_CPP_14 + #elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1) + #define JSON_HAS_CPP_14 + #endif + // the cpp 11 flag is always specified because it is the minimal required version + #define JSON_HAS_CPP_11 +#endif - With the default values for @a StringType (`std::string`), the default - value for @a string_t is: +#if !defined(JSON_HAS_FILESYSTEM) && !defined(JSON_HAS_EXPERIMENTAL_FILESYSTEM) + #ifdef JSON_HAS_CPP_17 + #if defined(__cpp_lib_filesystem) + #define JSON_HAS_FILESYSTEM 1 + #elif defined(__cpp_lib_experimental_filesystem) + #define JSON_HAS_EXPERIMENTAL_FILESYSTEM 1 + #elif !defined(__has_include) + #define JSON_HAS_EXPERIMENTAL_FILESYSTEM 1 + #elif __has_include() + #define JSON_HAS_FILESYSTEM 1 + #elif __has_include() + #define JSON_HAS_EXPERIMENTAL_FILESYSTEM 1 + #endif + + // std::filesystem does not work on MinGW GCC 8: https://sourceforge.net/p/mingw-w64/bugs/737/ + #if defined(__MINGW32__) && defined(__GNUC__) && __GNUC__ == 8 + #undef JSON_HAS_FILESYSTEM + #undef JSON_HAS_EXPERIMENTAL_FILESYSTEM + #endif + + // no filesystem support before GCC 8: https://en.cppreference.com/w/cpp/compiler_support + #if defined(__GNUC__) && !defined(__clang__) && __GNUC__ < 8 + #undef JSON_HAS_FILESYSTEM + #undef JSON_HAS_EXPERIMENTAL_FILESYSTEM + #endif + + // no filesystem support before Clang 7: https://en.cppreference.com/w/cpp/compiler_support + #if defined(__clang_major__) && __clang_major__ < 7 + #undef JSON_HAS_FILESYSTEM + #undef JSON_HAS_EXPERIMENTAL_FILESYSTEM + #endif + + // no filesystem support before MSVC 19.14: https://en.cppreference.com/w/cpp/compiler_support + #if defined(_MSC_VER) && _MSC_VER < 1914 + #undef JSON_HAS_FILESYSTEM + #undef JSON_HAS_EXPERIMENTAL_FILESYSTEM + #endif + + // no filesystem support before iOS 13 + #if defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED < 130000 + #undef JSON_HAS_FILESYSTEM + #undef JSON_HAS_EXPERIMENTAL_FILESYSTEM + #endif + + // no filesystem support before macOS Catalina + #if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < 101500 + #undef JSON_HAS_FILESYSTEM + #undef JSON_HAS_EXPERIMENTAL_FILESYSTEM + #endif + #endif +#endif - @code {.cpp} - std::string - @endcode +#ifndef JSON_HAS_EXPERIMENTAL_FILESYSTEM + #define JSON_HAS_EXPERIMENTAL_FILESYSTEM 0 +#endif - #### Encoding +#ifndef JSON_HAS_FILESYSTEM + #define JSON_HAS_FILESYSTEM 0 +#endif - Strings are stored in UTF-8 encoding. Therefore, functions like - `std::string::size()` or `std::string::length()` return the number of - bytes in the string rather than the number of characters or glyphs. +// disable documentation warnings on clang +#if defined(__clang__) + #pragma clang diagnostic push + #pragma clang diagnostic ignored "-Wdocumentation" + #pragma clang diagnostic ignored "-Wdocumentation-unknown-command" +#endif - #### String comparison +// allow disabling exceptions +#if (defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)) && !defined(JSON_NOEXCEPTION) + #define JSON_THROW(exception) throw exception + #define JSON_TRY try + #define JSON_CATCH(exception) catch(exception) + #define JSON_INTERNAL_CATCH(exception) catch(exception) +#else + #include + #define JSON_THROW(exception) std::abort() + #define JSON_TRY if(true) + #define JSON_CATCH(exception) if(false) + #define JSON_INTERNAL_CATCH(exception) if(false) +#endif - [RFC 7159](http://rfc7159.net/rfc7159) states: - > Software implementations are typically required to test names of object - > members for equality. Implementations that transform the textual - > representation into sequences of Unicode code units and then perform the - > comparison numerically, code unit by code unit, are interoperable in the - > sense that implementations will agree in all cases on equality or - > inequality of two strings. For example, implementations that compare - > strings with escaped characters unconverted may incorrectly find that - > `"a\\b"` and `"a\u005Cb"` are not equal. +// override exception macros +#if defined(JSON_THROW_USER) + #undef JSON_THROW + #define JSON_THROW JSON_THROW_USER +#endif +#if defined(JSON_TRY_USER) + #undef JSON_TRY + #define JSON_TRY JSON_TRY_USER +#endif +#if defined(JSON_CATCH_USER) + #undef JSON_CATCH + #define JSON_CATCH JSON_CATCH_USER + #undef JSON_INTERNAL_CATCH + #define JSON_INTERNAL_CATCH JSON_CATCH_USER +#endif +#if defined(JSON_INTERNAL_CATCH_USER) + #undef JSON_INTERNAL_CATCH + #define JSON_INTERNAL_CATCH JSON_INTERNAL_CATCH_USER +#endif - This implementation is interoperable as it does compare strings code unit - by code unit. +// allow overriding assert +#if !defined(JSON_ASSERT) + #include // assert + #define JSON_ASSERT(x) assert(x) +#endif - #### Storage +// allow to access some private functions (needed by the test suite) +#if defined(JSON_TESTS_PRIVATE) + #define JSON_PRIVATE_UNLESS_TESTED public +#else + #define JSON_PRIVATE_UNLESS_TESTED private +#endif - String values are stored as pointers in a @ref basic_json type. That is, - for any access to string values, a pointer of type `string_t*` must be - dereferenced. +/*! +@brief macro to briefly define a mapping between an enum and JSON +@def NLOHMANN_JSON_SERIALIZE_ENUM +@since version 3.4.0 +*/ +#define NLOHMANN_JSON_SERIALIZE_ENUM(ENUM_TYPE, ...) \ + template \ + inline void to_json(BasicJsonType& j, const ENUM_TYPE& e) \ + { \ + static_assert(std::is_enum::value, #ENUM_TYPE " must be an enum!"); \ + static const std::pair m[] = __VA_ARGS__; \ + auto it = std::find_if(std::begin(m), std::end(m), \ + [e](const std::pair& ej_pair) -> bool \ + { \ + return ej_pair.first == e; \ + }); \ + j = ((it != std::end(m)) ? it : std::begin(m))->second; \ + } \ + template \ + inline void from_json(const BasicJsonType& j, ENUM_TYPE& e) \ + { \ + static_assert(std::is_enum::value, #ENUM_TYPE " must be an enum!"); \ + static const std::pair m[] = __VA_ARGS__; \ + auto it = std::find_if(std::begin(m), std::end(m), \ + [&j](const std::pair& ej_pair) -> bool \ + { \ + return ej_pair.second == j; \ + }); \ + e = ((it != std::end(m)) ? it : std::begin(m))->first; \ + } - @since version 1.0.0 - */ - using string_t = StringType; +// Ugly macros to avoid uglier copy-paste when specializing basic_json. They +// may be removed in the future once the class is split. + +#define NLOHMANN_BASIC_JSON_TPL_DECLARATION \ + template class ObjectType, \ + template class ArrayType, \ + class StringType, class BooleanType, class NumberIntegerType, \ + class NumberUnsignedType, class NumberFloatType, \ + template class AllocatorType, \ + template class JSONSerializer, \ + class BinaryType> + +#define NLOHMANN_BASIC_JSON_TPL \ + basic_json + +// Macros to simplify conversion from/to types + +#define NLOHMANN_JSON_EXPAND( x ) x +#define NLOHMANN_JSON_GET_MACRO(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, NAME,...) NAME +#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \ + NLOHMANN_JSON_PASTE64, \ + NLOHMANN_JSON_PASTE63, \ + NLOHMANN_JSON_PASTE62, \ + NLOHMANN_JSON_PASTE61, \ + NLOHMANN_JSON_PASTE60, \ + NLOHMANN_JSON_PASTE59, \ + NLOHMANN_JSON_PASTE58, \ + NLOHMANN_JSON_PASTE57, \ + NLOHMANN_JSON_PASTE56, \ + NLOHMANN_JSON_PASTE55, \ + NLOHMANN_JSON_PASTE54, \ + NLOHMANN_JSON_PASTE53, \ + NLOHMANN_JSON_PASTE52, \ + NLOHMANN_JSON_PASTE51, \ + NLOHMANN_JSON_PASTE50, \ + NLOHMANN_JSON_PASTE49, \ + NLOHMANN_JSON_PASTE48, \ + NLOHMANN_JSON_PASTE47, \ + NLOHMANN_JSON_PASTE46, \ + NLOHMANN_JSON_PASTE45, \ + NLOHMANN_JSON_PASTE44, \ + NLOHMANN_JSON_PASTE43, \ + NLOHMANN_JSON_PASTE42, \ + NLOHMANN_JSON_PASTE41, \ + NLOHMANN_JSON_PASTE40, \ + NLOHMANN_JSON_PASTE39, \ + NLOHMANN_JSON_PASTE38, \ + NLOHMANN_JSON_PASTE37, \ + NLOHMANN_JSON_PASTE36, \ + NLOHMANN_JSON_PASTE35, \ + NLOHMANN_JSON_PASTE34, \ + NLOHMANN_JSON_PASTE33, \ + NLOHMANN_JSON_PASTE32, \ + NLOHMANN_JSON_PASTE31, \ + NLOHMANN_JSON_PASTE30, \ + NLOHMANN_JSON_PASTE29, \ + NLOHMANN_JSON_PASTE28, \ + NLOHMANN_JSON_PASTE27, \ + NLOHMANN_JSON_PASTE26, \ + NLOHMANN_JSON_PASTE25, \ + NLOHMANN_JSON_PASTE24, \ + NLOHMANN_JSON_PASTE23, \ + NLOHMANN_JSON_PASTE22, \ + NLOHMANN_JSON_PASTE21, \ + NLOHMANN_JSON_PASTE20, \ + NLOHMANN_JSON_PASTE19, \ + NLOHMANN_JSON_PASTE18, \ + NLOHMANN_JSON_PASTE17, \ + NLOHMANN_JSON_PASTE16, \ + NLOHMANN_JSON_PASTE15, \ + NLOHMANN_JSON_PASTE14, \ + NLOHMANN_JSON_PASTE13, \ + NLOHMANN_JSON_PASTE12, \ + NLOHMANN_JSON_PASTE11, \ + NLOHMANN_JSON_PASTE10, \ + NLOHMANN_JSON_PASTE9, \ + NLOHMANN_JSON_PASTE8, \ + NLOHMANN_JSON_PASTE7, \ + NLOHMANN_JSON_PASTE6, \ + NLOHMANN_JSON_PASTE5, \ + NLOHMANN_JSON_PASTE4, \ + NLOHMANN_JSON_PASTE3, \ + NLOHMANN_JSON_PASTE2, \ + NLOHMANN_JSON_PASTE1)(__VA_ARGS__)) +#define NLOHMANN_JSON_PASTE2(func, v1) func(v1) +#define NLOHMANN_JSON_PASTE3(func, v1, v2) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE2(func, v2) +#define NLOHMANN_JSON_PASTE4(func, v1, v2, v3) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE3(func, v2, v3) +#define NLOHMANN_JSON_PASTE5(func, v1, v2, v3, v4) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE4(func, v2, v3, v4) +#define NLOHMANN_JSON_PASTE6(func, v1, v2, v3, v4, v5) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE5(func, v2, v3, v4, v5) +#define NLOHMANN_JSON_PASTE7(func, v1, v2, v3, v4, v5, v6) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE6(func, v2, v3, v4, v5, v6) +#define NLOHMANN_JSON_PASTE8(func, v1, v2, v3, v4, v5, v6, v7) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE7(func, v2, v3, v4, v5, v6, v7) +#define NLOHMANN_JSON_PASTE9(func, v1, v2, v3, v4, v5, v6, v7, v8) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE8(func, v2, v3, v4, v5, v6, v7, v8) +#define NLOHMANN_JSON_PASTE10(func, v1, v2, v3, v4, v5, v6, v7, v8, v9) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE9(func, v2, v3, v4, v5, v6, v7, v8, v9) +#define NLOHMANN_JSON_PASTE11(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE10(func, v2, v3, v4, v5, v6, v7, v8, v9, v10) +#define NLOHMANN_JSON_PASTE12(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE11(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) +#define NLOHMANN_JSON_PASTE13(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE12(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12) +#define NLOHMANN_JSON_PASTE14(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE13(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13) +#define NLOHMANN_JSON_PASTE15(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE14(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14) +#define NLOHMANN_JSON_PASTE16(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE15(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) +#define NLOHMANN_JSON_PASTE17(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE16(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) +#define NLOHMANN_JSON_PASTE18(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE17(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17) +#define NLOHMANN_JSON_PASTE19(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE18(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18) +#define NLOHMANN_JSON_PASTE20(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE19(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19) +#define NLOHMANN_JSON_PASTE21(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE20(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20) +#define NLOHMANN_JSON_PASTE22(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE21(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21) +#define NLOHMANN_JSON_PASTE23(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE22(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22) +#define NLOHMANN_JSON_PASTE24(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE23(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23) +#define NLOHMANN_JSON_PASTE25(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE24(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24) +#define NLOHMANN_JSON_PASTE26(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE25(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25) +#define NLOHMANN_JSON_PASTE27(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE26(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26) +#define NLOHMANN_JSON_PASTE28(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE27(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) +#define NLOHMANN_JSON_PASTE29(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE28(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28) +#define NLOHMANN_JSON_PASTE30(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE29(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29) +#define NLOHMANN_JSON_PASTE31(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE30(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30) +#define NLOHMANN_JSON_PASTE32(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE31(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31) +#define NLOHMANN_JSON_PASTE33(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE32(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32) +#define NLOHMANN_JSON_PASTE34(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE33(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33) +#define NLOHMANN_JSON_PASTE35(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE34(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34) +#define NLOHMANN_JSON_PASTE36(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE35(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35) +#define NLOHMANN_JSON_PASTE37(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE36(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36) +#define NLOHMANN_JSON_PASTE38(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE37(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37) +#define NLOHMANN_JSON_PASTE39(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE38(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38) +#define NLOHMANN_JSON_PASTE40(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE39(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39) +#define NLOHMANN_JSON_PASTE41(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE40(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40) +#define NLOHMANN_JSON_PASTE42(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE41(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41) +#define NLOHMANN_JSON_PASTE43(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE42(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42) +#define NLOHMANN_JSON_PASTE44(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE43(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43) +#define NLOHMANN_JSON_PASTE45(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE44(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44) +#define NLOHMANN_JSON_PASTE46(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE45(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45) +#define NLOHMANN_JSON_PASTE47(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE46(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46) +#define NLOHMANN_JSON_PASTE48(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE47(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47) +#define NLOHMANN_JSON_PASTE49(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE48(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48) +#define NLOHMANN_JSON_PASTE50(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE49(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49) +#define NLOHMANN_JSON_PASTE51(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE50(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50) +#define NLOHMANN_JSON_PASTE52(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE51(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51) +#define NLOHMANN_JSON_PASTE53(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE52(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52) +#define NLOHMANN_JSON_PASTE54(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE53(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53) +#define NLOHMANN_JSON_PASTE55(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE54(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54) +#define NLOHMANN_JSON_PASTE56(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE55(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55) +#define NLOHMANN_JSON_PASTE57(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE56(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56) +#define NLOHMANN_JSON_PASTE58(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE57(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57) +#define NLOHMANN_JSON_PASTE59(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE58(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58) +#define NLOHMANN_JSON_PASTE60(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE59(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59) +#define NLOHMANN_JSON_PASTE61(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE60(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60) +#define NLOHMANN_JSON_PASTE62(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE61(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61) +#define NLOHMANN_JSON_PASTE63(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE62(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62) +#define NLOHMANN_JSON_PASTE64(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62, v63) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE63(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62, v63) + +#define NLOHMANN_JSON_TO(v1) nlohmann_json_j[#v1] = nlohmann_json_t.v1; +#define NLOHMANN_JSON_FROM(v1) nlohmann_json_j.at(#v1).get_to(nlohmann_json_t.v1); +#define NLOHMANN_JSON_FROM_WITH_DEFAULT(v1) nlohmann_json_t.v1 = nlohmann_json_j.value(#v1, nlohmann_json_default_obj.v1); - /*! - @brief a type for a boolean +/*! +@brief macro +@def NLOHMANN_DEFINE_TYPE_INTRUSIVE +@since version 3.9.0 +*/ +#define NLOHMANN_DEFINE_TYPE_INTRUSIVE(Type, ...) \ + friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \ + friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) } - [RFC 7159](http://rfc7159.net/rfc7159) implicitly describes a boolean as a - type which differentiates the two literals `true` and `false`. +#define NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT(Type, ...) \ + friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \ + friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { Type nlohmann_json_default_obj; NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM_WITH_DEFAULT, __VA_ARGS__)) } - To store objects in C++, a type is defined by the template parameter @a - BooleanType which chooses the type to use. +/*! +@brief macro +@def NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE +@since version 3.9.0 +*/ +#define NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(Type, ...) \ + inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \ + inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) } + +#define NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT(Type, ...) \ + inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \ + inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { Type nlohmann_json_default_obj; NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM_WITH_DEFAULT, __VA_ARGS__)) } + + +// inspired from https://stackoverflow.com/a/26745591 +// allows to call any std function as if (e.g. with begin): +// using std::begin; begin(x); +// +// it allows using the detected idiom to retrieve the return type +// of such an expression +#define NLOHMANN_CAN_CALL_STD_FUNC_IMPL(std_name) \ + namespace detail { \ + using std::std_name; \ + \ + template \ + using result_of_##std_name = decltype(std_name(std::declval()...)); \ + } \ + \ + namespace detail2 { \ + struct std_name##_tag \ + { \ + }; \ + \ + template \ + std_name##_tag std_name(T&&...); \ + \ + template \ + using result_of_##std_name = decltype(std_name(std::declval()...)); \ + \ + template \ + struct would_call_std_##std_name \ + { \ + static constexpr auto const value = ::nlohmann::detail:: \ + is_detected_exact::value; \ + }; \ + } /* namespace detail2 */ \ + \ + template \ + struct would_call_std_##std_name : detail2::would_call_std_##std_name \ + { \ + } - #### Default type +#ifndef JSON_USE_IMPLICIT_CONVERSIONS + #define JSON_USE_IMPLICIT_CONVERSIONS 1 +#endif - With the default values for @a BooleanType (`bool`), the default value for - @a boolean_t is: +#if JSON_USE_IMPLICIT_CONVERSIONS + #define JSON_EXPLICIT +#else + #define JSON_EXPLICIT explicit +#endif - @code {.cpp} - bool - @endcode +#ifndef JSON_DIAGNOSTICS + #define JSON_DIAGNOSTICS 0 +#endif - #### Storage - Boolean values are stored directly inside a @ref basic_json type. +namespace nlohmann +{ +namespace detail +{ - @since version 1.0.0 - */ - using boolean_t = BooleanType; +/*! +@brief replace all occurrences of a substring by another string +@param[in,out] s the string to manipulate; changed so that all + occurrences of @a f are replaced with @a t +@param[in] f the substring to replace with @a t +@param[in] t the string to replace @a f +@pre The search string @a f must not be empty. **This precondition is +enforced with an assertion.** +@since version 2.0.0 +*/ +inline void replace_substring(std::string& s, const std::string& f, + const std::string& t) +{ + JSON_ASSERT(!f.empty()); + for (auto pos = s.find(f); // find first occurrence of f + pos != std::string::npos; // make sure f was found + s.replace(pos, f.size(), t), // replace with t, and + pos = s.find(f, pos + t.size())) // find next occurrence of f + {} +} - /*! - @brief a type for a number (integer) +/*! + * @brief string escaping as described in RFC 6901 (Sect. 4) + * @param[in] s string to escape + * @return escaped string + * + * Note the order of escaping "~" to "~0" and "/" to "~1" is important. + */ +inline std::string escape(std::string s) +{ + replace_substring(s, "~", "~0"); + replace_substring(s, "/", "~1"); + return s; +} - [RFC 7159](http://rfc7159.net/rfc7159) describes numbers as follows: - > The representation of numbers is similar to that used in most - > programming languages. A number is represented in base 10 using decimal - > digits. It contains an integer component that may be prefixed with an - > optional minus sign, which may be followed by a fraction part and/or an - > exponent part. Leading zeros are not allowed. (...) Numeric values that - > cannot be represented in the grammar below (such as Infinity and NaN) - > are not permitted. +/*! + * @brief string unescaping as described in RFC 6901 (Sect. 4) + * @param[in] s string to unescape + * @return unescaped string + * + * Note the order of escaping "~1" to "/" and "~0" to "~" is important. + */ +static void unescape(std::string& s) +{ + replace_substring(s, "~1", "/"); + replace_substring(s, "~0", "~"); +} - This description includes both integer and floating-point numbers. - However, C++ allows more precise storage if it is known whether the number - is a signed integer, an unsigned integer or a floating-point number. - Therefore, three different types, @ref number_integer_t, @ref - number_unsigned_t and @ref number_float_t are used. +} // namespace detail +} // namespace nlohmann - To store integer numbers in C++, a type is defined by the template - parameter @a NumberIntegerType which chooses the type to use. +// #include - #### Default type - With the default values for @a NumberIntegerType (`int64_t`), the default - value for @a number_integer_t is: +#include // size_t - @code {.cpp} - int64_t - @endcode +namespace nlohmann +{ +namespace detail +{ +/// struct to capture the start position of the current token +struct position_t +{ + /// the total number of characters read + std::size_t chars_read_total = 0; + /// the number of characters read in the current line + std::size_t chars_read_current_line = 0; + /// the number of lines read + std::size_t lines_read = 0; + + /// conversion to size_t to preserve SAX interface + constexpr operator size_t() const + { + return chars_read_total; + } +}; + +} // namespace detail +} // namespace nlohmann + +// #include - #### Default behavior - - The restrictions about leading zeros is not enforced in C++. Instead, - leading zeros in integer literals lead to an interpretation as octal - number. Internally, the value will be stored as decimal number. For - instance, the C++ integer literal `010` will be serialized to `8`. - During deserialization, leading zeros yield an error. - - Not-a-number (NaN) values will be serialized to `null`. +namespace nlohmann +{ +namespace detail +{ +//////////////// +// exceptions // +//////////////// + +/// @brief general exception of the @ref basic_json class +/// @sa https://json.nlohmann.me/api/basic_json/exception/ +class exception : public std::exception +{ + public: + /// returns the explanatory string + const char* what() const noexcept override + { + return m.what(); + } - #### Limits + /// the id of the exception + const int id; // NOLINT(cppcoreguidelines-non-private-member-variables-in-classes) - [RFC 7159](http://rfc7159.net/rfc7159) specifies: - > An implementation may set limits on the range and precision of numbers. + protected: + JSON_HEDLEY_NON_NULL(3) + exception(int id_, const char* what_arg) : id(id_), m(what_arg) {} // NOLINT(bugprone-throw-keyword-missing) - When the default type is used, the maximal integer number that can be - stored is `9223372036854775807` (INT64_MAX) and the minimal integer number - that can be stored is `-9223372036854775808` (INT64_MIN). Integer numbers - that are out of range will yield over/underflow when used in a - constructor. During deserialization, too large or small integer numbers - will be automatically be stored as @ref number_unsigned_t or @ref - number_float_t. + static std::string name(const std::string& ename, int id_) + { + return "[json.exception." + ename + "." + std::to_string(id_) + "] "; + } - [RFC 7159](http://rfc7159.net/rfc7159) further states: - > Note that when such software is used, numbers that are integers and are - > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense - > that implementations will agree exactly on their numeric values. + template + static std::string diagnostics(const BasicJsonType& leaf_element) + { +#if JSON_DIAGNOSTICS + std::vector tokens; + for (const auto* current = &leaf_element; current->m_parent != nullptr; current = current->m_parent) + { + switch (current->m_parent->type()) + { + case value_t::array: + { + for (std::size_t i = 0; i < current->m_parent->m_value.array->size(); ++i) + { + if (¤t->m_parent->m_value.array->operator[](i) == current) + { + tokens.emplace_back(std::to_string(i)); + break; + } + } + break; + } - As this range is a subrange of the exactly supported range [INT64_MIN, - INT64_MAX], this class's integer type is interoperable. + case value_t::object: + { + for (const auto& element : *current->m_parent->m_value.object) + { + if (&element.second == current) + { + tokens.emplace_back(element.first.c_str()); + break; + } + } + break; + } - #### Storage + case value_t::null: // LCOV_EXCL_LINE + case value_t::string: // LCOV_EXCL_LINE + case value_t::boolean: // LCOV_EXCL_LINE + case value_t::number_integer: // LCOV_EXCL_LINE + case value_t::number_unsigned: // LCOV_EXCL_LINE + case value_t::number_float: // LCOV_EXCL_LINE + case value_t::binary: // LCOV_EXCL_LINE + case value_t::discarded: // LCOV_EXCL_LINE + default: // LCOV_EXCL_LINE + break; // LCOV_EXCL_LINE + } + } - Integer number values are stored directly inside a @ref basic_json type. + if (tokens.empty()) + { + return ""; + } - @sa @ref number_float_t -- type for number values (floating-point) + return "(" + std::accumulate(tokens.rbegin(), tokens.rend(), std::string{}, + [](const std::string & a, const std::string & b) + { + return a + "/" + detail::escape(b); + }) + ") "; +#else + static_cast(leaf_element); + return ""; +#endif + } - @sa @ref number_unsigned_t -- type for number values (unsigned integer) + private: + /// an exception object as storage for error messages + std::runtime_error m; +}; - @since version 1.0.0 +/// @brief exception indicating a parse error +/// @sa https://json.nlohmann.me/api/basic_json/parse_error/ +class parse_error : public exception +{ + public: + /*! + @brief create a parse error exception + @param[in] id_ the id of the exception + @param[in] pos the position where the error occurred (or with + chars_read_total=0 if the position cannot be + determined) + @param[in] what_arg the explanatory string + @return parse_error object */ - using number_integer_t = NumberIntegerType; + template + static parse_error create(int id_, const position_t& pos, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("parse_error", id_) + "parse error" + + position_string(pos) + ": " + exception::diagnostics(context) + what_arg; + return {id_, pos.chars_read_total, w.c_str()}; + } + + template + static parse_error create(int id_, std::size_t byte_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("parse_error", id_) + "parse error" + + (byte_ != 0 ? (" at byte " + std::to_string(byte_)) : "") + + ": " + exception::diagnostics(context) + what_arg; + return {id_, byte_, w.c_str()}; + } /*! - @brief a type for a number (unsigned) + @brief byte index of the parse error + The byte index of the last read character in the input file. + @note For an input with n bytes, 1 is the index of the first character and + n+1 is the index of the terminating null byte or the end of file. + This also holds true when reading a byte vector (CBOR or MessagePack). + */ + const std::size_t byte; - [RFC 7159](http://rfc7159.net/rfc7159) describes numbers as follows: - > The representation of numbers is similar to that used in most - > programming languages. A number is represented in base 10 using decimal - > digits. It contains an integer component that may be prefixed with an - > optional minus sign, which may be followed by a fraction part and/or an - > exponent part. Leading zeros are not allowed. (...) Numeric values that - > cannot be represented in the grammar below (such as Infinity and NaN) - > are not permitted. + private: + parse_error(int id_, std::size_t byte_, const char* what_arg) + : exception(id_, what_arg), byte(byte_) {} - This description includes both integer and floating-point numbers. - However, C++ allows more precise storage if it is known whether the number - is a signed integer, an unsigned integer or a floating-point number. - Therefore, three different types, @ref number_integer_t, @ref - number_unsigned_t and @ref number_float_t are used. + static std::string position_string(const position_t& pos) + { + return " at line " + std::to_string(pos.lines_read + 1) + + ", column " + std::to_string(pos.chars_read_current_line); + } +}; - To store unsigned integer numbers in C++, a type is defined by the - template parameter @a NumberUnsignedType which chooses the type to use. +/// @brief exception indicating errors with iterators +/// @sa https://json.nlohmann.me/api/basic_json/invalid_iterator/ +class invalid_iterator : public exception +{ + public: + template + static invalid_iterator create(int id_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("invalid_iterator", id_) + exception::diagnostics(context) + what_arg; + return {id_, w.c_str()}; + } - #### Default type + private: + JSON_HEDLEY_NON_NULL(3) + invalid_iterator(int id_, const char* what_arg) + : exception(id_, what_arg) {} +}; - With the default values for @a NumberUnsignedType (`uint64_t`), the - default value for @a number_unsigned_t is: +/// @brief exception indicating executing a member function with a wrong type +/// @sa https://json.nlohmann.me/api/basic_json/type_error/ +class type_error : public exception +{ + public: + template + static type_error create(int id_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("type_error", id_) + exception::diagnostics(context) + what_arg; + return {id_, w.c_str()}; + } - @code {.cpp} - uint64_t - @endcode + private: + JSON_HEDLEY_NON_NULL(3) + type_error(int id_, const char* what_arg) : exception(id_, what_arg) {} +}; - #### Default behavior +/// @brief exception indicating access out of the defined range +/// @sa https://json.nlohmann.me/api/basic_json/out_of_range/ +class out_of_range : public exception +{ + public: + template + static out_of_range create(int id_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("out_of_range", id_) + exception::diagnostics(context) + what_arg; + return {id_, w.c_str()}; + } - - The restrictions about leading zeros is not enforced in C++. Instead, - leading zeros in integer literals lead to an interpretation as octal - number. Internally, the value will be stored as decimal number. For - instance, the C++ integer literal `010` will be serialized to `8`. - During deserialization, leading zeros yield an error. - - Not-a-number (NaN) values will be serialized to `null`. + private: + JSON_HEDLEY_NON_NULL(3) + out_of_range(int id_, const char* what_arg) : exception(id_, what_arg) {} +}; - #### Limits +/// @brief exception indicating other library errors +/// @sa https://json.nlohmann.me/api/basic_json/other_error/ +class other_error : public exception +{ + public: + template + static other_error create(int id_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("other_error", id_) + exception::diagnostics(context) + what_arg; + return {id_, w.c_str()}; + } - [RFC 7159](http://rfc7159.net/rfc7159) specifies: - > An implementation may set limits on the range and precision of numbers. + private: + JSON_HEDLEY_NON_NULL(3) + other_error(int id_, const char* what_arg) : exception(id_, what_arg) {} +}; - When the default type is used, the maximal integer number that can be - stored is `18446744073709551615` (UINT64_MAX) and the minimal integer - number that can be stored is `0`. Integer numbers that are out of range - will yield over/underflow when used in a constructor. During - deserialization, too large or small integer numbers will be automatically - be stored as @ref number_integer_t or @ref number_float_t. +} // namespace detail +} // namespace nlohmann - [RFC 7159](http://rfc7159.net/rfc7159) further states: - > Note that when such software is used, numbers that are integers and are - > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense - > that implementations will agree exactly on their numeric values. +// #include - As this range is a subrange (when considered in conjunction with the - number_integer_t type) of the exactly supported range [0, UINT64_MAX], - this class's integer type is interoperable. +// #include - #### Storage - Integer number values are stored directly inside a @ref basic_json type. +#include // size_t +#include // conditional, enable_if, false_type, integral_constant, is_constructible, is_integral, is_same, remove_cv, remove_reference, true_type +#include // index_sequence, make_index_sequence, index_sequence_for - @sa @ref number_float_t -- type for number values (floating-point) - @sa @ref number_integer_t -- type for number values (integer) +// #include - @since version 2.0.0 - */ - using number_unsigned_t = NumberUnsignedType; - /*! - @brief a type for a number (floating-point) +namespace nlohmann +{ +namespace detail +{ - [RFC 7159](http://rfc7159.net/rfc7159) describes numbers as follows: - > The representation of numbers is similar to that used in most - > programming languages. A number is represented in base 10 using decimal - > digits. It contains an integer component that may be prefixed with an - > optional minus sign, which may be followed by a fraction part and/or an - > exponent part. Leading zeros are not allowed. (...) Numeric values that - > cannot be represented in the grammar below (such as Infinity and NaN) - > are not permitted. +template +using uncvref_t = typename std::remove_cv::type>::type; - This description includes both integer and floating-point numbers. - However, C++ allows more precise storage if it is known whether the number - is a signed integer, an unsigned integer or a floating-point number. - Therefore, three different types, @ref number_integer_t, @ref - number_unsigned_t and @ref number_float_t are used. +#ifdef JSON_HAS_CPP_14 - To store floating-point numbers in C++, a type is defined by the template - parameter @a NumberFloatType which chooses the type to use. +// the following utilities are natively available in C++14 +using std::enable_if_t; +using std::index_sequence; +using std::make_index_sequence; +using std::index_sequence_for; - #### Default type +#else - With the default values for @a NumberFloatType (`double`), the default - value for @a number_float_t is: +// alias templates to reduce boilerplate +template +using enable_if_t = typename std::enable_if::type; - @code {.cpp} - double - @endcode +// The following code is taken from https://github.com/abseil/abseil-cpp/blob/10cb35e459f5ecca5b2ff107635da0bfa41011b4/absl/utility/utility.h +// which is part of Google Abseil (https://github.com/abseil/abseil-cpp), licensed under the Apache License 2.0. + +//// START OF CODE FROM GOOGLE ABSEIL + +// integer_sequence +// +// Class template representing a compile-time integer sequence. An instantiation +// of `integer_sequence` has a sequence of integers encoded in its +// type through its template arguments (which is a common need when +// working with C++11 variadic templates). `absl::integer_sequence` is designed +// to be a drop-in replacement for C++14's `std::integer_sequence`. +// +// Example: +// +// template< class T, T... Ints > +// void user_function(integer_sequence); +// +// int main() +// { +// // user_function's `T` will be deduced to `int` and `Ints...` +// // will be deduced to `0, 1, 2, 3, 4`. +// user_function(make_integer_sequence()); +// } +template +struct integer_sequence +{ + using value_type = T; + static constexpr std::size_t size() noexcept + { + return sizeof...(Ints); + } +}; - #### Default behavior +// index_sequence +// +// A helper template for an `integer_sequence` of `size_t`, +// `absl::index_sequence` is designed to be a drop-in replacement for C++14's +// `std::index_sequence`. +template +using index_sequence = integer_sequence; - - The restrictions about leading zeros is not enforced in C++. Instead, - leading zeros in floating-point literals will be ignored. Internally, - the value will be stored as decimal number. For instance, the C++ - floating-point literal `01.2` will be serialized to `1.2`. During - deserialization, leading zeros yield an error. - - Not-a-number (NaN) values will be serialized to `null`. +namespace utility_internal +{ - #### Limits +template +struct Extend; - [RFC 7159](http://rfc7159.net/rfc7159) states: - > This specification allows implementations to set limits on the range and - > precision of numbers accepted. Since software that implements IEEE - > 754-2008 binary64 (double precision) numbers is generally available and - > widely used, good interoperability can be achieved by implementations - > that expect no more precision or range than these provide, in the sense - > that implementations will approximate JSON numbers within the expected - > precision. +// Note that SeqSize == sizeof...(Ints). It's passed explicitly for efficiency. +template +struct Extend, SeqSize, 0> +{ + using type = integer_sequence < T, Ints..., (Ints + SeqSize)... >; +}; - This implementation does exactly follow this approach, as it uses double - precision floating-point numbers. Note values smaller than - `-1.79769313486232e+308` and values greater than `1.79769313486232e+308` - will be stored as NaN internally and be serialized to `null`. +template +struct Extend, SeqSize, 1> +{ + using type = integer_sequence < T, Ints..., (Ints + SeqSize)..., 2 * SeqSize >; +}; - #### Storage +// Recursion helper for 'make_integer_sequence'. +// 'Gen::type' is an alias for 'integer_sequence'. +template +struct Gen +{ + using type = + typename Extend < typename Gen < T, N / 2 >::type, N / 2, N % 2 >::type; +}; - Floating-point number values are stored directly inside a @ref basic_json - type. +template +struct Gen +{ + using type = integer_sequence; +}; - @sa @ref number_integer_t -- type for number values (integer) +} // namespace utility_internal - @sa @ref number_unsigned_t -- type for number values (unsigned integer) +// Compile-time sequences of integers - @since version 1.0.0 - */ - using number_float_t = NumberFloatType; +// make_integer_sequence +// +// This template alias is equivalent to +// `integer_sequence`, and is designed to be a drop-in +// replacement for C++14's `std::make_integer_sequence`. +template +using make_integer_sequence = typename utility_internal::Gen::type; - /// @} +// make_index_sequence +// +// This template alias is equivalent to `index_sequence<0, 1, ..., N-1>`, +// and is designed to be a drop-in replacement for C++14's +// `std::make_index_sequence`. +template +using make_index_sequence = make_integer_sequence; - private: +// index_sequence_for +// +// Converts a typename pack into an index sequence of the same length, and +// is designed to be a drop-in replacement for C++14's +// `std::index_sequence_for()` +template +using index_sequence_for = make_index_sequence; - /// helper for exception-safe object creation - template - static T* create(Args&& ... args) - { - AllocatorType alloc; - auto deleter = [&](T * object) - { - alloc.deallocate(object, 1); - }; - std::unique_ptr object(alloc.allocate(1), deleter); - alloc.construct(object.get(), std::forward(args)...); - assert(object != nullptr); - return object.release(); - } +//// END OF CODE FROM GOOGLE ABSEIL - //////////////////////// - // JSON value storage // - //////////////////////// +#endif - /*! - @brief a JSON value +// dispatch utility (taken from ranges-v3) +template struct priority_tag : priority_tag < N - 1 > {}; +template<> struct priority_tag<0> {}; - The actual storage for a JSON value of the @ref basic_json class. This - union combines the different storage types for the JSON value types - defined in @ref value_t. +// taken from ranges-v3 +template +struct static_const +{ + static constexpr T value{}; +}; - JSON type | value_t type | used type - --------- | --------------- | ------------------------ - object | object | pointer to @ref object_t - array | array | pointer to @ref array_t - string | string | pointer to @ref string_t - boolean | boolean | @ref boolean_t - number | number_integer | @ref number_integer_t - number | number_unsigned | @ref number_unsigned_t - number | number_float | @ref number_float_t - null | null | *no value is stored* +template +constexpr T static_const::value; // NOLINT(readability-redundant-declaration) - @note Variable-length types (objects, arrays, and strings) are stored as - pointers. The size of the union should not exceed 64 bits if the default - value types are used. +} // namespace detail +} // namespace nlohmann - @since version 1.0.0 - */ - union json_value - { - /// object (stored with pointer to save storage) - object_t* object; - /// array (stored with pointer to save storage) - array_t* array; - /// string (stored with pointer to save storage) - string_t* string; - /// boolean - boolean_t boolean; - /// number (integer) - number_integer_t number_integer; - /// number (unsigned integer) - number_unsigned_t number_unsigned; - /// number (floating-point) - number_float_t number_float; +// #include - /// default constructor (for null values) - json_value() = default; - /// constructor for booleans - json_value(boolean_t v) noexcept : boolean(v) {} - /// constructor for numbers (integer) - json_value(number_integer_t v) noexcept : number_integer(v) {} - /// constructor for numbers (unsigned) - json_value(number_unsigned_t v) noexcept : number_unsigned(v) {} - /// constructor for numbers (floating-point) - json_value(number_float_t v) noexcept : number_float(v) {} - /// constructor for empty values of a given type - json_value(value_t t) - { - switch (t) - { - case value_t::object: - { - object = create(); - break; - } - case value_t::array: - { - array = create(); - break; - } +namespace nlohmann +{ +namespace detail +{ +// dispatching helper struct +template struct identity_tag {}; +} // namespace detail +} // namespace nlohmann - case value_t::string: - { - string = create(""); - break; - } +// #include - case value_t::boolean: - { - boolean = boolean_t(false); - break; - } - case value_t::number_integer: - { - number_integer = number_integer_t(0); - break; - } +#include // numeric_limits +#include // false_type, is_constructible, is_integral, is_same, true_type +#include // declval +#include // tuple - case value_t::number_unsigned: - { - number_unsigned = number_unsigned_t(0); - break; - } +// #include - case value_t::number_float: - { - number_float = number_float_t(0.0); - break; - } - case value_t::null: - { - break; - } +// #include - default: - { - if (t == value_t::null) - { - JSON_THROW(std::domain_error("961c151d2e87f2686a955a9be24d316f1362bf21 2.1.1")); // LCOV_EXCL_LINE - } - break; - } - } - } - /// constructor for strings - json_value(const string_t& value) - { - string = create(value); - } +#include // random_access_iterator_tag - /// constructor for objects - json_value(const object_t& value) - { - object = create(value); - } +// #include - /// constructor for arrays - json_value(const array_t& value) - { - array = create(value); - } - }; +// #include - /*! - @brief checks the class invariants - This function asserts the class invariants. It needs to be called at the - end of every constructor to make sure that created objects respect the - invariant. Furthermore, it has to be called each time the type of a JSON - value is changed, because the invariant expresses a relationship between - @a m_type and @a m_value. - */ - void assert_invariant() const - { - assert(m_type != value_t::object or m_value.object != nullptr); - assert(m_type != value_t::array or m_value.array != nullptr); - assert(m_type != value_t::string or m_value.string != nullptr); - } +namespace nlohmann +{ +namespace detail +{ +template +struct iterator_types {}; + +template +struct iterator_types < + It, + void_t> +{ + using difference_type = typename It::difference_type; + using value_type = typename It::value_type; + using pointer = typename It::pointer; + using reference = typename It::reference; + using iterator_category = typename It::iterator_category; +}; - public: - ////////////////////////// - // JSON parser callback // - ////////////////////////// +// This is required as some compilers implement std::iterator_traits in a way that +// doesn't work with SFINAE. See https://github.com/nlohmann/json/issues/1341. +template +struct iterator_traits +{ +}; - /*! - @brief JSON callback events +template +struct iterator_traits < T, enable_if_t < !std::is_pointer::value >> + : iterator_types +{ +}; - This enumeration lists the parser events that can trigger calling a - callback function of type @ref parser_callback_t during parsing. +template +struct iterator_traits::value>> +{ + using iterator_category = std::random_access_iterator_tag; + using value_type = T; + using difference_type = ptrdiff_t; + using pointer = T*; + using reference = T&; +}; +} // namespace detail +} // namespace nlohmann - @image html callback_events.png "Example when certain parse events are triggered" +// #include - @since version 1.0.0 - */ - enum class parse_event_t : uint8_t - { - /// the parser read `{` and started to process a JSON object - object_start, - /// the parser read `}` and finished processing a JSON object - object_end, - /// the parser read `[` and started to process a JSON array - array_start, - /// the parser read `]` and finished processing a JSON array - array_end, - /// the parser read a key of a value in an object - key, - /// the parser finished reading a JSON value - value - }; - /*! - @brief per-element parser callback type +// #include - With a parser callback function, the result of parsing a JSON text can be - influenced. When passed to @ref parse(std::istream&, const - parser_callback_t) or @ref parse(const CharT, const parser_callback_t), - it is called on certain events (passed as @ref parse_event_t via parameter - @a event) with a set recursion depth @a depth and context JSON value - @a parsed. The return value of the callback function is a boolean - indicating whether the element that emitted the callback shall be kept or - not. - We distinguish six scenarios (determined by the event type) in which the - callback function can be called. The following table describes the values - of the parameters @a depth, @a event, and @a parsed. +namespace nlohmann +{ +NLOHMANN_CAN_CALL_STD_FUNC_IMPL(begin); +} // namespace nlohmann - parameter @a event | description | parameter @a depth | parameter @a parsed - ------------------ | ----------- | ------------------ | ------------------- - parse_event_t::object_start | the parser read `{` and started to process a JSON object | depth of the parent of the JSON object | a JSON value with type discarded - parse_event_t::key | the parser read a key of a value in an object | depth of the currently parsed JSON object | a JSON string containing the key - parse_event_t::object_end | the parser read `}` and finished processing a JSON object | depth of the parent of the JSON object | the parsed JSON object - parse_event_t::array_start | the parser read `[` and started to process a JSON array | depth of the parent of the JSON array | a JSON value with type discarded - parse_event_t::array_end | the parser read `]` and finished processing a JSON array | depth of the parent of the JSON array | the parsed JSON array - parse_event_t::value | the parser finished reading a JSON value | depth of the value | the parsed JSON value +// #include - @image html callback_events.png "Example when certain parse events are triggered" - Discarding a value (i.e., returning `false`) has different effects - depending on the context in which function was called: +// #include - - Discarded values in structured types are skipped. That is, the parser - will behave as if the discarded value was never read. - - In case a value outside a structured type is skipped, it is replaced - with `null`. This case happens if the top-level element is skipped. - @param[in] depth the depth of the recursion during parsing +namespace nlohmann +{ +NLOHMANN_CAN_CALL_STD_FUNC_IMPL(end); +} // namespace nlohmann - @param[in] event an event of type parse_event_t indicating the context in - the callback function has been called +// #include - @param[in,out] parsed the current intermediate parse result; note that - writing to this value has no effect for parse_event_t::key events +// #include - @return Whether the JSON value which called the function during parsing - should be kept (`true`) or not (`false`). In the latter case, it is either - skipped completely or replaced by an empty discarded object. +// #include +#ifndef INCLUDE_NLOHMANN_JSON_FWD_HPP_ +#define INCLUDE_NLOHMANN_JSON_FWD_HPP_ - @sa @ref parse(std::istream&, parser_callback_t) or - @ref parse(const CharT, const parser_callback_t) for examples +#include // int64_t, uint64_t +#include // map +#include // allocator +#include // string +#include // vector - @since version 1.0.0 - */ - using parser_callback_t = std::function; +/*! +@brief namespace for Niels Lohmann +@see https://github.com/nlohmann +@since version 1.0.0 +*/ +namespace nlohmann +{ +/*! +@brief default JSONSerializer template argument +This serializer ignores the template arguments and uses ADL +([argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl)) +for serialization. +*/ +template +struct adl_serializer; + +/// a class to store JSON values +/// @sa https://json.nlohmann.me/api/basic_json/ +template class ObjectType = + std::map, + template class ArrayType = std::vector, + class StringType = std::string, class BooleanType = bool, + class NumberIntegerType = std::int64_t, + class NumberUnsignedType = std::uint64_t, + class NumberFloatType = double, + template class AllocatorType = std::allocator, + template class JSONSerializer = + adl_serializer, + class BinaryType = std::vector> +class basic_json; + +/// @brief JSON Pointer defines a string syntax for identifying a specific value within a JSON document +/// @sa https://json.nlohmann.me/api/json_pointer/ +template +class json_pointer; +/*! +@brief default specialization +@sa https://json.nlohmann.me/api/json/ +*/ +using json = basic_json<>; - ////////////////// - // constructors // - ////////////////// +/// @brief a minimal map-like container that preserves insertion order +/// @sa https://json.nlohmann.me/api/ordered_map/ +template +struct ordered_map; - /// @name constructors and destructors - /// Constructors of class @ref basic_json, copy/move constructor, copy - /// assignment, static functions creating objects, and the destructor. - /// @{ +/// @brief specialization that maintains the insertion order of object keys +/// @sa https://json.nlohmann.me/api/ordered_json/ +using ordered_json = basic_json; - /*! - @brief create an empty value with a given type +} // namespace nlohmann - Create an empty JSON value with a given type. The value will be default - initialized with an empty value which depends on the type: +#endif // INCLUDE_NLOHMANN_JSON_FWD_HPP_ - Value type | initial value - ----------- | ------------- - null | `null` - boolean | `false` - string | `""` - number | `0` - object | `{}` - array | `[]` - @param[in] value_type the type of the value to create +namespace nlohmann +{ +/*! +@brief detail namespace with internal helper functions +This namespace collects functions that should not be exposed, +implementations of some @ref basic_json methods, and meta-programming helpers. +@since version 2.1.0 +*/ +namespace detail +{ +///////////// +// helpers // +///////////// - @complexity Constant. +// Note to maintainers: +// +// Every trait in this file expects a non CV-qualified type. +// The only exceptions are in the 'aliases for detected' section +// (i.e. those of the form: decltype(T::member_function(std::declval()))) +// +// In this case, T has to be properly CV-qualified to constraint the function arguments +// (e.g. to_json(BasicJsonType&, const T&)) - @throw std::bad_alloc if allocation for object, array, or string value - fails +template struct is_basic_json : std::false_type {}; - @liveexample{The following code shows the constructor for different @ref - value_t values,basic_json__value_t} +NLOHMANN_BASIC_JSON_TPL_DECLARATION +struct is_basic_json : std::true_type {}; - @since version 1.0.0 - */ - basic_json(const value_t value_type) - : m_type(value_type), m_value(value_type) - { - assert_invariant(); - } +////////////////////// +// json_ref helpers // +////////////////////// - /*! - @brief create a null object +template +class json_ref; - Create a `null` JSON value. It either takes a null pointer as parameter - (explicitly creating `null`) or no parameter (implicitly creating `null`). - The passed null pointer itself is not read -- it is only used to choose - the right constructor. +template +struct is_json_ref : std::false_type {}; - @complexity Constant. +template +struct is_json_ref> : std::true_type {}; - @exceptionsafety No-throw guarantee: this constructor never throws - exceptions. +////////////////////////// +// aliases for detected // +////////////////////////// - @liveexample{The following code shows the constructor with and without a - null pointer parameter.,basic_json__nullptr_t} +template +using mapped_type_t = typename T::mapped_type; - @since version 1.0.0 - */ - basic_json(std::nullptr_t = nullptr) noexcept - : basic_json(value_t::null) - { - assert_invariant(); - } +template +using key_type_t = typename T::key_type; - /*! - @brief create a JSON value - - This is a "catch all" constructor for all compatible JSON types; that is, - types for which a `to_json()` method exsits. The constructor forwards the - parameter @a val to that method (to `json_serializer::to_json` method - with `U = uncvref_t`, to be exact). - - Template type @a CompatibleType includes, but is not limited to, the - following types: - - **arrays**: @ref array_t and all kinds of compatible containers such as - `std::vector`, `std::deque`, `std::list`, `std::forward_list`, - `std::array`, `std::set`, `std::unordered_set`, `std::multiset`, and - `unordered_multiset` with a `value_type` from which a @ref basic_json - value can be constructed. - - **objects**: @ref object_t and all kinds of compatible associative - containers such as `std::map`, `std::unordered_map`, `std::multimap`, - and `std::unordered_multimap` with a `key_type` compatible to - @ref string_t and a `value_type` from which a @ref basic_json value can - be constructed. - - **strings**: @ref string_t, string literals, and all compatible string - containers can be used. - - **numbers**: @ref number_integer_t, @ref number_unsigned_t, - @ref number_float_t, and all convertible number types such as `int`, - `size_t`, `int64_t`, `float` or `double` can be used. - - **boolean**: @ref boolean_t / `bool` can be used. - - See the examples below. - - @tparam CompatibleType a type such that: - - @a CompatibleType is not derived from `std::istream`, - - @a CompatibleType is not @ref basic_json (to avoid hijacking copy/move - constructors), - - @a CompatibleType is not a @ref basic_json nested type (e.g., - @ref json_pointer, @ref iterator, etc ...) - - @ref @ref json_serializer has a - `to_json(basic_json_t&, CompatibleType&&)` method - - @tparam U = `uncvref_t` - - @param[in] val the value to be forwarded - - @complexity Usually linear in the size of the passed @a val, also - depending on the implementation of the called `to_json()` - method. +template +using value_type_t = typename T::value_type; - @throw what `json_serializer::to_json()` throws +template +using difference_type_t = typename T::difference_type; - @liveexample{The following code shows the constructor with several - compatible types.,basic_json__CompatibleType} +template +using pointer_t = typename T::pointer; - @since version 2.1.0 - */ - template, - detail::enable_if_t::value and - not std::is_same::value and - not detail::is_basic_json_nested_type< - basic_json_t, U>::value and - detail::has_to_json::value, - int> = 0> - basic_json(CompatibleType && val) noexcept(noexcept(JSONSerializer::to_json( - std::declval(), std::forward(val)))) - { - JSONSerializer::to_json(*this, std::forward(val)); - assert_invariant(); - } +template +using reference_t = typename T::reference; - /*! - @brief create a container (array or object) from an initializer list +template +using iterator_category_t = typename T::iterator_category; - Creates a JSON value of type array or object from the passed initializer - list @a init. In case @a type_deduction is `true` (default), the type of - the JSON value to be created is deducted from the initializer list @a init - according to the following rules: +template +using to_json_function = decltype(T::to_json(std::declval()...)); - 1. If the list is empty, an empty JSON object value `{}` is created. - 2. If the list consists of pairs whose first element is a string, a JSON - object value is created where the first elements of the pairs are - treated as keys and the second elements are as values. - 3. In all other cases, an array is created. +template +using from_json_function = decltype(T::from_json(std::declval()...)); - The rules aim to create the best fit between a C++ initializer list and - JSON values. The rationale is as follows: +template +using get_template_function = decltype(std::declval().template get()); - 1. The empty initializer list is written as `{}` which is exactly an empty - JSON object. - 2. C++ has now way of describing mapped types other than to list a list of - pairs. As JSON requires that keys must be of type string, rule 2 is the - weakest constraint one can pose on initializer lists to interpret them - as an object. - 3. In all other cases, the initializer list could not be interpreted as - JSON object type, so interpreting it as JSON array type is safe. +// trait checking if JSONSerializer::from_json(json const&, udt&) exists +template +struct has_from_json : std::false_type {}; + +// trait checking if j.get is valid +// use this trait instead of std::is_constructible or std::is_convertible, +// both rely on, or make use of implicit conversions, and thus fail when T +// has several constructors/operator= (see https://github.com/nlohmann/json/issues/958) +template +struct is_getable +{ + static constexpr bool value = is_detected::value; +}; - With the rules described above, the following JSON values cannot be - expressed by an initializer list: +template +struct has_from_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> +{ + using serializer = typename BasicJsonType::template json_serializer; - - the empty array (`[]`): use @ref array(std::initializer_list) - with an empty initializer list in this case - - arrays whose elements satisfy rule 2: use @ref - array(std::initializer_list) with the same initializer list - in this case + static constexpr bool value = + is_detected_exact::value; +}; - @note When used without parentheses around an empty initializer list, @ref - basic_json() is called instead of this function, yielding the JSON null - value. +// This trait checks if JSONSerializer::from_json(json const&) exists +// this overload is used for non-default-constructible user-defined-types +template +struct has_non_default_from_json : std::false_type {}; - @param[in] init initializer list with JSON values +template +struct has_non_default_from_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> +{ + using serializer = typename BasicJsonType::template json_serializer; - @param[in] type_deduction internal parameter; when set to `true`, the type - of the JSON value is deducted from the initializer list @a init; when set - to `false`, the type provided via @a manual_type is forced. This mode is - used by the functions @ref array(std::initializer_list) and - @ref object(std::initializer_list). + static constexpr bool value = + is_detected_exact::value; +}; - @param[in] manual_type internal parameter; when @a type_deduction is set - to `false`, the created JSON value will use the provided type (only @ref - value_t::array and @ref value_t::object are valid); when @a type_deduction - is set to `true`, this parameter has no effect +// This trait checks if BasicJsonType::json_serializer::to_json exists +// Do not evaluate the trait when T is a basic_json type, to avoid template instantiation infinite recursion. +template +struct has_to_json : std::false_type {}; - @throw std::domain_error if @a type_deduction is `false`, @a manual_type - is `value_t::object`, but @a init contains an element which is not a pair - whose first element is a string; example: `"cannot create object from - initializer list"` +template +struct has_to_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> +{ + using serializer = typename BasicJsonType::template json_serializer; - @complexity Linear in the size of the initializer list @a init. + static constexpr bool value = + is_detected_exact::value; +}; - @liveexample{The example below shows how JSON values are created from - initializer lists.,basic_json__list_init_t} - @sa @ref array(std::initializer_list) -- create a JSON array - value from an initializer list - @sa @ref object(std::initializer_list) -- create a JSON object - value from an initializer list +/////////////////// +// is_ functions // +/////////////////// - @since version 1.0.0 - */ - basic_json(std::initializer_list init, - bool type_deduction = true, - value_t manual_type = value_t::array) - { - // check if each element is an array with two elements whose first - // element is a string - bool is_an_object = std::all_of(init.begin(), init.end(), - [](const basic_json & element) - { - return element.is_array() and element.size() == 2 and element[0].is_string(); - }); +// https://en.cppreference.com/w/cpp/types/conjunction +template struct conjunction : std::true_type { }; +template struct conjunction : B1 { }; +template +struct conjunction +: std::conditional, B1>::type {}; - // adjust type if type deduction is not wanted - if (not type_deduction) - { - // if array is wanted, do not create an object though possible - if (manual_type == value_t::array) - { - is_an_object = false; - } +// https://en.cppreference.com/w/cpp/types/negation +template struct negation : std::integral_constant < bool, !B::value > { }; - // if object is wanted but impossible, throw an exception - if (manual_type == value_t::object and not is_an_object) - { - JSON_THROW(std::domain_error("cannot create object from initializer list")); - } - } +// Reimplementation of is_constructible and is_default_constructible, due to them being broken for +// std::pair and std::tuple until LWG 2367 fix (see https://cplusplus.github.io/LWG/lwg-defects.html#2367). +// This causes compile errors in e.g. clang 3.5 or gcc 4.9. +template +struct is_default_constructible : std::is_default_constructible {}; - if (is_an_object) - { - // the initializer list is a list of pairs -> create object - m_type = value_t::object; - m_value = value_t::object; +template +struct is_default_constructible> + : conjunction, is_default_constructible> {}; - std::for_each(init.begin(), init.end(), [this](const basic_json & element) - { - m_value.object->emplace(*(element[0].m_value.string), element[1]); - }); - } - else - { - // the initializer list describes an array -> create array - m_type = value_t::array; - m_value.array = create(init); - } +template +struct is_default_constructible> + : conjunction, is_default_constructible> {}; - assert_invariant(); - } +template +struct is_default_constructible> + : conjunction...> {}; - /*! - @brief explicitly create an array from an initializer list +template +struct is_default_constructible> + : conjunction...> {}; - Creates a JSON array value from a given initializer list. That is, given a - list of values `a, b, c`, creates the JSON value `[a, b, c]`. If the - initializer list is empty, the empty array `[]` is created. - @note This function is only needed to express two edge cases that cannot - be realized with the initializer list constructor (@ref - basic_json(std::initializer_list, bool, value_t)). These cases - are: - 1. creating an array whose elements are all pairs whose first element is a - string -- in this case, the initializer list constructor would create an - object, taking the first elements as keys - 2. creating an empty array -- passing the empty initializer list to the - initializer list constructor yields an empty object +template +struct is_constructible : std::is_constructible {}; - @param[in] init initializer list with JSON values to create an array from - (optional) +template +struct is_constructible> : is_default_constructible> {}; - @return JSON array value +template +struct is_constructible> : is_default_constructible> {}; - @complexity Linear in the size of @a init. +template +struct is_constructible> : is_default_constructible> {}; - @liveexample{The following code shows an example for the `array` - function.,array} +template +struct is_constructible> : is_default_constructible> {}; - @sa @ref basic_json(std::initializer_list, bool, value_t) -- - create a JSON value from an initializer list - @sa @ref object(std::initializer_list) -- create a JSON object - value from an initializer list - @since version 1.0.0 - */ - static basic_json array(std::initializer_list init = - std::initializer_list()) - { - return basic_json(init, false, value_t::array); - } +template +struct is_iterator_traits : std::false_type {}; - /*! - @brief explicitly create an object from an initializer list +template +struct is_iterator_traits> +{ + private: + using traits = iterator_traits; - Creates a JSON object value from a given initializer list. The initializer - lists elements must be pairs, and their first elements must be strings. If - the initializer list is empty, the empty object `{}` is created. + public: + static constexpr auto value = + is_detected::value && + is_detected::value && + is_detected::value && + is_detected::value && + is_detected::value; +}; - @note This function is only added for symmetry reasons. In contrast to the - related function @ref array(std::initializer_list), there are - no cases which can only be expressed by this function. That is, any - initializer list @a init can also be passed to the initializer list - constructor @ref basic_json(std::initializer_list, bool, - value_t). +template +struct is_range +{ + private: + using t_ref = typename std::add_lvalue_reference::type; - @param[in] init initializer list to create an object from (optional) + using iterator = detected_t; + using sentinel = detected_t; - @return JSON object value + // to be 100% correct, it should use https://en.cppreference.com/w/cpp/iterator/input_or_output_iterator + // and https://en.cppreference.com/w/cpp/iterator/sentinel_for + // but reimplementing these would be too much work, as a lot of other concepts are used underneath + static constexpr auto is_iterator_begin = + is_iterator_traits>::value; - @throw std::domain_error if @a init is not a pair whose first elements are - strings; thrown by - @ref basic_json(std::initializer_list, bool, value_t) + public: + static constexpr bool value = !std::is_same::value && !std::is_same::value && is_iterator_begin; +}; - @complexity Linear in the size of @a init. +template +using iterator_t = enable_if_t::value, result_of_begin())>>; - @liveexample{The following code shows an example for the `object` - function.,object} +template +using range_value_t = value_type_t>>; - @sa @ref basic_json(std::initializer_list, bool, value_t) -- - create a JSON value from an initializer list - @sa @ref array(std::initializer_list) -- create a JSON array - value from an initializer list +// The following implementation of is_complete_type is taken from +// https://blogs.msdn.microsoft.com/vcblog/2015/12/02/partial-support-for-expression-sfinae-in-vs-2015-update-1/ +// and is written by Xiang Fan who agreed to using it in this library. - @since version 1.0.0 - */ - static basic_json object(std::initializer_list init = - std::initializer_list()) - { - return basic_json(init, false, value_t::object); - } +template +struct is_complete_type : std::false_type {}; - /*! - @brief construct an array with count copies of given value +template +struct is_complete_type : std::true_type {}; - Constructs a JSON array value by creating @a cnt copies of a passed value. - In case @a cnt is `0`, an empty array is created. As postcondition, - `std::distance(begin(),end()) == cnt` holds. +template +struct is_compatible_object_type_impl : std::false_type {}; - @param[in] cnt the number of JSON copies of @a val to create - @param[in] val the JSON value to copy +template +struct is_compatible_object_type_impl < + BasicJsonType, CompatibleObjectType, + enable_if_t < is_detected::value&& + is_detected::value >> +{ + using object_t = typename BasicJsonType::object_t; - @complexity Linear in @a cnt. + // macOS's is_constructible does not play well with nonesuch... + static constexpr bool value = + is_constructible::value && + is_constructible::value; +}; - @liveexample{The following code shows examples for the @ref - basic_json(size_type\, const basic_json&) - constructor.,basic_json__size_type_basic_json} +template +struct is_compatible_object_type + : is_compatible_object_type_impl {}; - @since version 1.0.0 - */ - basic_json(size_type cnt, const basic_json& val) - : m_type(value_t::array) - { - m_value.array = create(cnt, val); - assert_invariant(); - } +template +struct is_constructible_object_type_impl : std::false_type {}; - /*! - @brief construct a JSON container given an iterator range +template +struct is_constructible_object_type_impl < + BasicJsonType, ConstructibleObjectType, + enable_if_t < is_detected::value&& + is_detected::value >> +{ + using object_t = typename BasicJsonType::object_t; + + static constexpr bool value = + (is_default_constructible::value && + (std::is_move_assignable::value || + std::is_copy_assignable::value) && + (is_constructible::value && + std::is_same < + typename object_t::mapped_type, + typename ConstructibleObjectType::mapped_type >::value)) || + (has_from_json::value || + has_non_default_from_json < + BasicJsonType, + typename ConstructibleObjectType::mapped_type >::value); +}; - Constructs the JSON value with the contents of the range `[first, last)`. - The semantics depends on the different types a JSON value can have: - - In case of primitive types (number, boolean, or string), @a first must - be `begin()` and @a last must be `end()`. In this case, the value is - copied. Otherwise, std::out_of_range is thrown. - - In case of structured types (array, object), the constructor behaves as - similar versions for `std::vector`. - - In case of a null type, std::domain_error is thrown. +template +struct is_constructible_object_type + : is_constructible_object_type_impl {}; - @tparam InputIT an input iterator type (@ref iterator or @ref - const_iterator) +template +struct is_compatible_string_type +{ + static constexpr auto value = + is_constructible::value; +}; - @param[in] first begin of the range to copy from (included) - @param[in] last end of the range to copy from (excluded) +template +struct is_constructible_string_type +{ + static constexpr auto value = + is_constructible::value; +}; - @pre Iterators @a first and @a last must be initialized. **This - precondition is enforced with an assertion.** +template +struct is_compatible_array_type_impl : std::false_type {}; - @throw std::domain_error if iterators are not compatible; that is, do not - belong to the same JSON value; example: `"iterators are not compatible"` - @throw std::out_of_range if iterators are for a primitive type (number, - boolean, or string) where an out of range error can be detected easily; - example: `"iterators out of range"` - @throw std::bad_alloc if allocation for object, array, or string fails - @throw std::domain_error if called with a null value; example: `"cannot - use construct with iterators from null"` +template +struct is_compatible_array_type_impl < + BasicJsonType, CompatibleArrayType, + enable_if_t < + is_detected::value&& + is_iterator_traits>>::value&& +// special case for types like std::filesystem::path whose iterator's value_type are themselves +// c.f. https://github.com/nlohmann/json/pull/3073 + !std::is_same>::value >> +{ + static constexpr bool value = + is_constructible>::value; +}; - @complexity Linear in distance between @a first and @a last. +template +struct is_compatible_array_type + : is_compatible_array_type_impl {}; + +template +struct is_constructible_array_type_impl : std::false_type {}; + +template +struct is_constructible_array_type_impl < + BasicJsonType, ConstructibleArrayType, + enable_if_t::value >> + : std::true_type {}; + +template +struct is_constructible_array_type_impl < + BasicJsonType, ConstructibleArrayType, + enable_if_t < !std::is_same::value&& + !is_compatible_string_type::value&& + is_default_constructible::value&& +(std::is_move_assignable::value || + std::is_copy_assignable::value)&& +is_detected::value&& +is_iterator_traits>>::value&& +is_detected::value&& +// special case for types like std::filesystem::path whose iterator's value_type are themselves +// c.f. https://github.com/nlohmann/json/pull/3073 +!std::is_same>::value&& + is_complete_type < + detected_t>::value >> +{ + using value_type = range_value_t; + + static constexpr bool value = + std::is_same::value || + has_from_json::value || + has_non_default_from_json < + BasicJsonType, + value_type >::value; +}; - @liveexample{The example below shows several ways to create JSON values by - specifying a subrange with iterators.,basic_json__InputIt_InputIt} +template +struct is_constructible_array_type + : is_constructible_array_type_impl {}; - @since version 1.0.0 - */ - template::value or - std::is_same::value, int>::type = 0> - basic_json(InputIT first, InputIT last) - { - assert(first.m_object != nullptr); - assert(last.m_object != nullptr); +template +struct is_compatible_integer_type_impl : std::false_type {}; - // make sure iterator fits the current value - if (first.m_object != last.m_object) - { - JSON_THROW(std::domain_error("iterators are not compatible")); - } +template +struct is_compatible_integer_type_impl < + RealIntegerType, CompatibleNumberIntegerType, + enable_if_t < std::is_integral::value&& + std::is_integral::value&& + !std::is_same::value >> +{ + // is there an assert somewhere on overflows? + using RealLimits = std::numeric_limits; + using CompatibleLimits = std::numeric_limits; - // copy type from first iterator - m_type = first.m_object->m_type; + static constexpr auto value = + is_constructible::value && + CompatibleLimits::is_integer && + RealLimits::is_signed == CompatibleLimits::is_signed; +}; - // check if iterator range is complete for primitive values - switch (m_type) - { - case value_t::boolean: - case value_t::number_float: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::string: - { - if (not first.m_it.primitive_iterator.is_begin() or not last.m_it.primitive_iterator.is_end()) - { - JSON_THROW(std::out_of_range("iterators out of range")); - } - break; - } +template +struct is_compatible_integer_type + : is_compatible_integer_type_impl {}; - default: - { - break; - } - } +template +struct is_compatible_type_impl: std::false_type {}; - switch (m_type) - { - case value_t::number_integer: - { - m_value.number_integer = first.m_object->m_value.number_integer; - break; - } +template +struct is_compatible_type_impl < + BasicJsonType, CompatibleType, + enable_if_t::value >> +{ + static constexpr bool value = + has_to_json::value; +}; - case value_t::number_unsigned: - { - m_value.number_unsigned = first.m_object->m_value.number_unsigned; - break; - } +template +struct is_compatible_type + : is_compatible_type_impl {}; - case value_t::number_float: - { - m_value.number_float = first.m_object->m_value.number_float; - break; - } +template +struct is_constructible_tuple : std::false_type {}; - case value_t::boolean: - { - m_value.boolean = first.m_object->m_value.boolean; - break; - } +template +struct is_constructible_tuple> : conjunction...> {}; - case value_t::string: - { - m_value = *first.m_object->m_value.string; - break; - } +// a naive helper to check if a type is an ordered_map (exploits the fact that +// ordered_map inherits capacity() from std::vector) +template +struct is_ordered_map +{ + using one = char; - case value_t::object: - { - m_value.object = create(first.m_it.object_iterator, - last.m_it.object_iterator); - break; - } + struct two + { + char x[2]; // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) + }; - case value_t::array: - { - m_value.array = create(first.m_it.array_iterator, - last.m_it.array_iterator); - break; - } + template static one test( decltype(&C::capacity) ) ; + template static two test(...); - default: - { - JSON_THROW(std::domain_error("cannot use construct with iterators from " + first.m_object->type_name())); - } - } + enum { value = sizeof(test(nullptr)) == sizeof(char) }; // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) +}; - assert_invariant(); - } +// to avoid useless casts (see https://github.com/nlohmann/json/issues/2893#issuecomment-889152324) +template < typename T, typename U, enable_if_t < !std::is_same::value, int > = 0 > +T conditional_static_cast(U value) +{ + return static_cast(value); +} - /*! - @brief construct a JSON value given an input stream +template::value, int> = 0> +T conditional_static_cast(U value) +{ + return value; +} - @param[in,out] i stream to read a serialized JSON value from - @param[in] cb a parser callback function of type @ref parser_callback_t - which is used to control the deserialization by filtering unwanted values - (optional) +} // namespace detail +} // namespace nlohmann - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. The complexity can be higher if the parser callback function - @a cb has a super-linear complexity. +// #include - @note A UTF-8 byte order mark is silently ignored. - @deprecated This constructor is deprecated and will be removed in version - 3.0.0 to unify the interface of the library. Deserialization will be - done by stream operators or by calling one of the `parse` functions, - e.g. @ref parse(std::istream&, const parser_callback_t). That is, calls - like `json j(i);` for an input stream @a i need to be replaced by - `json j = json::parse(i);`. See the example below. +#if JSON_HAS_EXPERIMENTAL_FILESYSTEM +#include +namespace nlohmann::detail +{ +namespace std_fs = std::experimental::filesystem; +} // namespace nlohmann::detail +#elif JSON_HAS_FILESYSTEM +#include +namespace nlohmann::detail +{ +namespace std_fs = std::filesystem; +} // namespace nlohmann::detail +#endif - @liveexample{The example below demonstrates constructing a JSON value from - a `std::stringstream` with and without callback - function.,basic_json__istream} +namespace nlohmann +{ +namespace detail +{ +template +void from_json(const BasicJsonType& j, typename std::nullptr_t& n) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_null())) + { + JSON_THROW(type_error::create(302, "type must be null, but is " + std::string(j.type_name()), j)); + } + n = nullptr; +} - @since version 2.0.0, deprecated in version 2.0.3, to be removed in - version 3.0.0 - */ - JSON_DEPRECATED - explicit basic_json(std::istream& i, const parser_callback_t cb = nullptr) +// overloads for basic_json template parameters +template < typename BasicJsonType, typename ArithmeticType, + enable_if_t < std::is_arithmetic::value&& + !std::is_same::value, + int > = 0 > +void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val) +{ + switch (static_cast(j)) { - *this = parser(i, cb).parse(); - assert_invariant(); + case value_t::number_unsigned: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::number_integer: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::number_float: + { + val = static_cast(*j.template get_ptr()); + break; + } + + case value_t::null: + case value_t::object: + case value_t::array: + case value_t::string: + case value_t::boolean: + case value_t::binary: + case value_t::discarded: + default: + JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name()), j)); } +} - /////////////////////////////////////// - // other constructors and destructor // - /////////////////////////////////////// +template +void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_boolean())) + { + JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(j.type_name()), j)); + } + b = *j.template get_ptr(); +} - /*! - @brief copy constructor +template +void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_string())) + { + JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j)); + } + s = *j.template get_ptr(); +} - Creates a copy of a given JSON value. +template < + typename BasicJsonType, typename ConstructibleStringType, + enable_if_t < + is_constructible_string_type::value&& + !std::is_same::value, + int > = 0 > +void from_json(const BasicJsonType& j, ConstructibleStringType& s) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_string())) + { + JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j)); + } - @param[in] other the JSON value to copy + s = *j.template get_ptr(); +} - @complexity Linear in the size of @a other. +template +void from_json(const BasicJsonType& j, typename BasicJsonType::number_float_t& val) +{ + get_arithmetic_value(j, val); +} - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is linear. - - As postcondition, it holds: `other == basic_json(other)`. +template +void from_json(const BasicJsonType& j, typename BasicJsonType::number_unsigned_t& val) +{ + get_arithmetic_value(j, val); +} - @throw std::bad_alloc if allocation for object, array, or string fails. +template +void from_json(const BasicJsonType& j, typename BasicJsonType::number_integer_t& val) +{ + get_arithmetic_value(j, val); +} - @liveexample{The following code shows an example for the copy - constructor.,basic_json__basic_json} +template::value, int> = 0> +void from_json(const BasicJsonType& j, EnumType& e) +{ + typename std::underlying_type::type val; + get_arithmetic_value(j, val); + e = static_cast(val); +} - @since version 1.0.0 - */ - basic_json(const basic_json& other) - : m_type(other.m_type) +// forward_list doesn't have an insert method +template::value, int> = 0> +void from_json(const BasicJsonType& j, std::forward_list& l) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) { - // check of passed value is valid - other.assert_invariant(); + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + l.clear(); + std::transform(j.rbegin(), j.rend(), + std::front_inserter(l), [](const BasicJsonType & i) + { + return i.template get(); + }); +} - switch (m_type) - { - case value_t::object: - { - m_value = *other.m_value.object; - break; - } +// valarray doesn't have an insert method +template::value, int> = 0> +void from_json(const BasicJsonType& j, std::valarray& l) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + l.resize(j.size()); + std::transform(j.begin(), j.end(), std::begin(l), + [](const BasicJsonType & elem) + { + return elem.template get(); + }); +} - case value_t::array: - { - m_value = *other.m_value.array; - break; - } +template +auto from_json(const BasicJsonType& j, T (&arr)[N]) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) +-> decltype(j.template get(), void()) +{ + for (std::size_t i = 0; i < N; ++i) + { + arr[i] = j.at(i).template get(); + } +} - case value_t::string: - { - m_value = *other.m_value.string; - break; - } +template +void from_json_array_impl(const BasicJsonType& j, typename BasicJsonType::array_t& arr, priority_tag<3> /*unused*/) +{ + arr = *j.template get_ptr(); +} - case value_t::boolean: - { - m_value = other.m_value.boolean; - break; - } +template +auto from_json_array_impl(const BasicJsonType& j, std::array& arr, + priority_tag<2> /*unused*/) +-> decltype(j.template get(), void()) +{ + for (std::size_t i = 0; i < N; ++i) + { + arr[i] = j.at(i).template get(); + } +} - case value_t::number_integer: - { - m_value = other.m_value.number_integer; - break; - } +template::value, + int> = 0> +auto from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, priority_tag<1> /*unused*/) +-> decltype( + arr.reserve(std::declval()), + j.template get(), + void()) +{ + using std::end; - case value_t::number_unsigned: - { - m_value = other.m_value.number_unsigned; - break; - } + ConstructibleArrayType ret; + ret.reserve(j.size()); + std::transform(j.begin(), j.end(), + std::inserter(ret, end(ret)), [](const BasicJsonType & i) + { + // get() returns *this, this won't call a from_json + // method when value_type is BasicJsonType + return i.template get(); + }); + arr = std::move(ret); +} - case value_t::number_float: - { - m_value = other.m_value.number_float; - break; - } +template::value, + int> = 0> +void from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, + priority_tag<0> /*unused*/) +{ + using std::end; - default: - { - break; - } - } + ConstructibleArrayType ret; + std::transform( + j.begin(), j.end(), std::inserter(ret, end(ret)), + [](const BasicJsonType & i) + { + // get() returns *this, this won't call a from_json + // method when value_type is BasicJsonType + return i.template get(); + }); + arr = std::move(ret); +} - assert_invariant(); +template < typename BasicJsonType, typename ConstructibleArrayType, + enable_if_t < + is_constructible_array_type::value&& + !is_constructible_object_type::value&& + !is_constructible_string_type::value&& + !std::is_same::value&& + !is_basic_json::value, + int > = 0 > +auto from_json(const BasicJsonType& j, ConstructibleArrayType& arr) +-> decltype(from_json_array_impl(j, arr, priority_tag<3> {}), +j.template get(), +void()) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); } - /*! - @brief move constructor - - Move constructor. Constructs a JSON value with the contents of the given - value @a other using move semantics. It "steals" the resources from @a - other and leaves it as JSON null value. - - @param[in,out] other value to move to this object - - @post @a other is a JSON null value - - @complexity Constant. + from_json_array_impl(j, arr, priority_tag<3> {}); +} - @liveexample{The code below shows the move constructor explicitly called - via std::move.,basic_json__moveconstructor} +template < typename BasicJsonType, typename T, std::size_t... Idx > +std::array from_json_inplace_array_impl(BasicJsonType&& j, + identity_tag> /*unused*/, index_sequence /*unused*/) +{ + return { { std::forward(j).at(Idx).template get()... } }; +} - @since version 1.0.0 - */ - basic_json(basic_json&& other) noexcept - : m_type(std::move(other.m_type)), - m_value(std::move(other.m_value)) +template < typename BasicJsonType, typename T, std::size_t N > +auto from_json(BasicJsonType&& j, identity_tag> tag) +-> decltype(from_json_inplace_array_impl(std::forward(j), tag, make_index_sequence {})) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) { - // check that passed value is valid - other.assert_invariant(); - - // invalidate payload - other.m_type = value_t::null; - other.m_value = {}; - - assert_invariant(); + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); } - /*! - @brief copy assignment - - Copy assignment operator. Copies a JSON value via the "copy and swap" - strategy: It is expressed in terms of the copy constructor, destructor, - and the swap() member function. - - @param[in] other value to copy from - - @complexity Linear. - - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is linear. - - @liveexample{The code below shows and example for the copy assignment. It - creates a copy of value `a` which is then swapped with `b`. Finally\, the - copy of `a` (which is the null value after the swap) is - destroyed.,basic_json__copyassignment} + return from_json_inplace_array_impl(std::forward(j), tag, make_index_sequence {}); +} - @since version 1.0.0 - */ - reference& operator=(basic_json other) noexcept ( - std::is_nothrow_move_constructible::value and - std::is_nothrow_move_assignable::value and - std::is_nothrow_move_constructible::value and - std::is_nothrow_move_assignable::value - ) +template +void from_json(const BasicJsonType& j, typename BasicJsonType::binary_t& bin) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_binary())) { - // check that passed value is valid - other.assert_invariant(); - - using std::swap; - swap(m_type, other.m_type); - swap(m_value, other.m_value); - - assert_invariant(); - return *this; + JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(j.type_name()), j)); } - /*! - @brief destructor - - Destroys the JSON value and frees all allocated memory. - - @complexity Linear. + bin = *j.template get_ptr(); +} - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is linear. - - All stored elements are destroyed and all memory is freed. +template::value, int> = 0> +void from_json(const BasicJsonType& j, ConstructibleObjectType& obj) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_object())) + { + JSON_THROW(type_error::create(302, "type must be object, but is " + std::string(j.type_name()), j)); + } - @since version 1.0.0 - */ - ~basic_json() + ConstructibleObjectType ret; + const auto* inner_object = j.template get_ptr(); + using value_type = typename ConstructibleObjectType::value_type; + std::transform( + inner_object->begin(), inner_object->end(), + std::inserter(ret, ret.begin()), + [](typename BasicJsonType::object_t::value_type const & p) { - assert_invariant(); + return value_type(p.first, p.second.template get()); + }); + obj = std::move(ret); +} - switch (m_type) +// overload for arithmetic types, not chosen for basic_json template arguments +// (BooleanType, etc..); note: Is it really necessary to provide explicit +// overloads for boolean_t etc. in case of a custom BooleanType which is not +// an arithmetic type? +template < typename BasicJsonType, typename ArithmeticType, + enable_if_t < + std::is_arithmetic::value&& + !std::is_same::value&& + !std::is_same::value&& + !std::is_same::value&& + !std::is_same::value, + int > = 0 > +void from_json(const BasicJsonType& j, ArithmeticType& val) +{ + switch (static_cast(j)) + { + case value_t::number_unsigned: { - case value_t::object: - { - AllocatorType alloc; - alloc.destroy(m_value.object); - alloc.deallocate(m_value.object, 1); - break; - } - - case value_t::array: - { - AllocatorType alloc; - alloc.destroy(m_value.array); - alloc.deallocate(m_value.array, 1); - break; - } - - case value_t::string: - { - AllocatorType alloc; - alloc.destroy(m_value.string); - alloc.deallocate(m_value.string, 1); - break; - } - - default: - { - // all other types need no specific destructor - break; - } + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::number_integer: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::number_float: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::boolean: + { + val = static_cast(*j.template get_ptr()); + break; } - } - - /// @} - - public: - /////////////////////// - // object inspection // - /////////////////////// - /// @name object inspection - /// Functions to inspect the type of a JSON value. - /// @{ + 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, "type must be number, but is " + std::string(j.type_name()), j)); + } +} - /*! - @brief serialization +template +std::tuple from_json_tuple_impl_base(BasicJsonType&& j, index_sequence /*unused*/) +{ + return std::make_tuple(std::forward(j).at(Idx).template get()...); +} - Serialization function for JSON values. The function tries to mimic - Python's `json.dumps()` function, and currently supports its @a indent - parameter. +template < typename BasicJsonType, class A1, class A2 > +std::pair from_json_tuple_impl(BasicJsonType&& j, identity_tag> /*unused*/, priority_tag<0> /*unused*/) +{ + return {std::forward(j).at(0).template get(), + std::forward(j).at(1).template get()}; +} - @param[in] indent If indent is nonnegative, then array elements and object - members will be pretty-printed with that indent level. An indent level of - `0` will only insert newlines. `-1` (the default) selects the most compact - representation. +template +void from_json_tuple_impl(BasicJsonType&& j, std::pair& p, priority_tag<1> /*unused*/) +{ + p = from_json_tuple_impl(std::forward(j), identity_tag> {}, priority_tag<0> {}); +} - @return string containing the serialization of the JSON value +template +std::tuple from_json_tuple_impl(BasicJsonType&& j, identity_tag> /*unused*/, priority_tag<2> /*unused*/) +{ + return from_json_tuple_impl_base(std::forward(j), index_sequence_for {}); +} - @complexity Linear. +template +void from_json_tuple_impl(BasicJsonType&& j, std::tuple& t, priority_tag<3> /*unused*/) +{ + t = from_json_tuple_impl_base(std::forward(j), index_sequence_for {}); +} - @liveexample{The following example shows the effect of different @a indent - parameters to the result of the serialization.,dump} +template +auto from_json(BasicJsonType&& j, TupleRelated&& t) +-> decltype(from_json_tuple_impl(std::forward(j), std::forward(t), priority_tag<3> {})) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } - @see https://docs.python.org/2/library/json.html#json.dump + return from_json_tuple_impl(std::forward(j), std::forward(t), priority_tag<3> {}); +} - @since version 1.0.0 - */ - string_t dump(const int indent = -1) const +template < typename BasicJsonType, typename Key, typename Value, typename Compare, typename Allocator, + typename = enable_if_t < !std::is_constructible < + typename BasicJsonType::string_t, Key >::value >> +void from_json(const BasicJsonType& j, std::map& m) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) { - std::stringstream ss; - - if (indent >= 0) + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + m.clear(); + for (const auto& p : j) + { + if (JSON_HEDLEY_UNLIKELY(!p.is_array())) { - dump(ss, true, static_cast(indent)); + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name()), j)); } - else + m.emplace(p.at(0).template get(), p.at(1).template get()); + } +} + +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 >> +void from_json(const BasicJsonType& j, std::unordered_map& m) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + m.clear(); + for (const auto& p : j) + { + if (JSON_HEDLEY_UNLIKELY(!p.is_array())) { - dump(ss, false, 0); + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name()), j)); } - - return ss.str(); + m.emplace(p.at(0).template get(), p.at(1).template get()); } +} - /*! - @brief return the type of the JSON value (explicit) - - Return the type of the JSON value as a value from the @ref value_t - enumeration. - - @return the type of the JSON value - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `type()` for all JSON - types.,type} - - @since version 1.0.0 - */ - constexpr value_t type() const noexcept +#if JSON_HAS_FILESYSTEM || JSON_HAS_EXPERIMENTAL_FILESYSTEM +template +void from_json(const BasicJsonType& j, std_fs::path& p) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_string())) { - return m_type; + JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j)); } + p = *j.template get_ptr(); +} +#endif - /*! - @brief return whether type is primitive +struct from_json_fn +{ + template + auto operator()(const BasicJsonType& j, T&& val) const + noexcept(noexcept(from_json(j, std::forward(val)))) + -> decltype(from_json(j, std::forward(val))) + { + return from_json(j, std::forward(val)); + } +}; +} // namespace detail - This function returns true iff the JSON type is primitive (string, number, - boolean, or null). +/// 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) +{ +constexpr const auto& from_json = detail::static_const::value; // NOLINT(misc-definitions-in-headers) +} // namespace +} // namespace nlohmann - @return `true` if type is primitive (string, number, boolean, or null), - `false` otherwise. +// #include - @complexity Constant. - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. +#include // copy +#include // begin, end +#include // string +#include // tuple, get +#include // is_same, is_constructible, is_floating_point, is_enum, underlying_type +#include // move, forward, declval, pair +#include // valarray +#include // vector - @liveexample{The following code exemplifies `is_primitive()` for all JSON - types.,is_primitive} +// #include - @sa @ref is_structured() -- returns whether JSON value is structured - @sa @ref is_null() -- returns whether JSON value is `null` - @sa @ref is_string() -- returns whether JSON value is a string - @sa @ref is_boolean() -- returns whether JSON value is a boolean - @sa @ref is_number() -- returns whether JSON value is a number +// #include - @since version 1.0.0 - */ - constexpr bool is_primitive() const noexcept - { - return is_null() or is_string() or is_boolean() or is_number(); - } - /*! - @brief return whether type is structured +#include // size_t +#include // input_iterator_tag +#include // string, to_string +#include // tuple_size, get, tuple_element +#include // move - This function returns true iff the JSON type is structured (array or - object). +// #include - @return `true` if type is structured (array or object), `false` otherwise. +// #include - @complexity Constant. - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. +namespace nlohmann +{ +namespace detail +{ +template +void int_to_string( string_type& target, std::size_t value ) +{ + // For ADL + using std::to_string; + target = to_string(value); +} +template class iteration_proxy_value +{ + public: + using difference_type = std::ptrdiff_t; + using value_type = iteration_proxy_value; + using pointer = value_type * ; + using reference = value_type & ; + using iterator_category = std::input_iterator_tag; + using string_type = typename std::remove_cv< typename std::remove_reference().key() ) >::type >::type; - @liveexample{The following code exemplifies `is_structured()` for all JSON - types.,is_structured} + private: + /// the iterator + IteratorType anchor; + /// an index for arrays (used to create key names) + std::size_t array_index = 0; + /// last stringified array index + mutable std::size_t array_index_last = 0; + /// a string representation of the array index + mutable string_type array_index_str = "0"; + /// an empty string (to return a reference for primitive values) + const string_type empty_str{}; - @sa @ref is_primitive() -- returns whether value is primitive - @sa @ref is_array() -- returns whether value is an array - @sa @ref is_object() -- returns whether value is an object + public: + explicit iteration_proxy_value(IteratorType it) noexcept + : anchor(std::move(it)) + {} - @since version 1.0.0 - */ - constexpr bool is_structured() const noexcept + /// dereference operator (needed for range-based for) + iteration_proxy_value& operator*() { - return is_array() or is_object(); + return *this; } - /*! - @brief return whether value is null - - This function returns true iff the JSON value is null. - - @return `true` if type is null, `false` otherwise. - - @complexity Constant. + /// increment operator (needed for range-based for) + iteration_proxy_value& operator++() + { + ++anchor; + ++array_index; - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. + return *this; + } - @liveexample{The following code exemplifies `is_null()` for all JSON - types.,is_null} + /// equality operator (needed for InputIterator) + bool operator==(const iteration_proxy_value& o) const + { + return anchor == o.anchor; + } - @since version 1.0.0 - */ - constexpr bool is_null() const noexcept + /// inequality operator (needed for range-based for) + bool operator!=(const iteration_proxy_value& o) const { - return m_type == value_t::null; + return anchor != o.anchor; } - /*! - @brief return whether value is a boolean + /// return key of the iterator + const string_type& key() const + { + JSON_ASSERT(anchor.m_object != nullptr); - This function returns true iff the JSON value is a boolean. + switch (anchor.m_object->type()) + { + // use integer array index as key + case value_t::array: + { + if (array_index != array_index_last) + { + int_to_string( array_index_str, array_index ); + array_index_last = array_index; + } + return array_index_str; + } - @return `true` if type is boolean, `false` otherwise. + // use key from the object + case value_t::object: + return anchor.key(); - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_boolean()` for all JSON - types.,is_boolean} - - @since version 1.0.0 - */ - constexpr bool is_boolean() const noexcept - { - return m_type == value_t::boolean; + // use an empty key for all primitive types + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + return empty_str; + } } - /*! - @brief return whether value is a number - - This function returns true iff the JSON value is a number. This includes - both integer and floating-point values. - - @return `true` if type is number (regardless whether integer, unsigned - integer or floating-type), `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_number()` for all JSON - types.,is_number} - - @sa @ref is_number_integer() -- check if value is an integer or unsigned - integer number - @sa @ref is_number_unsigned() -- check if value is an unsigned integer - number - @sa @ref is_number_float() -- check if value is a floating-point number - - @since version 1.0.0 - */ - constexpr bool is_number() const noexcept + /// return value of the iterator + typename IteratorType::reference value() const { - return is_number_integer() or is_number_float(); + return anchor.value(); } +}; - /*! - @brief return whether value is an integer number - - This function returns true iff the JSON value is an integer or unsigned - integer number. This excludes floating-point values. - - @return `true` if type is an integer or unsigned integer number, `false` - otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_number_integer()` for all - JSON types.,is_number_integer} +/// proxy class for the items() function +template class iteration_proxy +{ + private: + /// the container to iterate + typename IteratorType::reference container; - @sa @ref is_number() -- check if value is a number - @sa @ref is_number_unsigned() -- check if value is an unsigned integer - number - @sa @ref is_number_float() -- check if value is a floating-point number + public: + /// construct iteration proxy from a container + explicit iteration_proxy(typename IteratorType::reference cont) noexcept + : container(cont) {} - @since version 1.0.0 - */ - constexpr bool is_number_integer() const noexcept + /// return iterator begin (needed for range-based for) + iteration_proxy_value begin() noexcept { - return m_type == value_t::number_integer or m_type == value_t::number_unsigned; + return iteration_proxy_value(container.begin()); } - /*! - @brief return whether value is an unsigned integer number - - This function returns true iff the JSON value is an unsigned integer - number. This excludes floating-point and (signed) integer values. - - @return `true` if type is an unsigned integer number, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_number_unsigned()` for all - JSON types.,is_number_unsigned} - - @sa @ref is_number() -- check if value is a number - @sa @ref is_number_integer() -- check if value is an integer or unsigned - integer number - @sa @ref is_number_float() -- check if value is a floating-point number - - @since version 2.0.0 - */ - constexpr bool is_number_unsigned() const noexcept + /// return iterator end (needed for range-based for) + iteration_proxy_value end() noexcept { - return m_type == value_t::number_unsigned; + return iteration_proxy_value(container.end()); } +}; +// Structured Bindings Support +// For further reference see https://blog.tartanllama.xyz/structured-bindings/ +// And see https://github.com/nlohmann/json/pull/1391 +template = 0> +auto get(const nlohmann::detail::iteration_proxy_value& i) -> decltype(i.key()) +{ + return i.key(); +} +// Structured Bindings Support +// For further reference see https://blog.tartanllama.xyz/structured-bindings/ +// And see https://github.com/nlohmann/json/pull/1391 +template = 0> +auto get(const nlohmann::detail::iteration_proxy_value& i) -> decltype(i.value()) +{ + return i.value(); +} +} // namespace detail +} // namespace nlohmann - /*! - @brief return whether value is a floating-point number - - This function returns true iff the JSON value is a floating-point number. - This excludes integer and unsigned integer values. - - @return `true` if type is a floating-point number, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. +// The Addition to the STD Namespace is required to add +// Structured Bindings Support to the iteration_proxy_value class +// For further reference see https://blog.tartanllama.xyz/structured-bindings/ +// And see https://github.com/nlohmann/json/pull/1391 +namespace std +{ +#if defined(__clang__) + // Fix: https://github.com/nlohmann/json/issues/1401 + #pragma clang diagnostic push + #pragma clang diagnostic ignored "-Wmismatched-tags" +#endif +template +class tuple_size<::nlohmann::detail::iteration_proxy_value> + : public std::integral_constant {}; - @liveexample{The following code exemplifies `is_number_float()` for all - JSON types.,is_number_float} +template +class tuple_element> +{ + public: + using type = decltype( + get(std::declval < + ::nlohmann::detail::iteration_proxy_value> ())); +}; +#if defined(__clang__) + #pragma clang diagnostic pop +#endif +} // namespace std - @sa @ref is_number() -- check if value is number - @sa @ref is_number_integer() -- check if value is an integer number - @sa @ref is_number_unsigned() -- check if value is an unsigned integer - number +// #include - @since version 1.0.0 - */ - constexpr bool is_number_float() const noexcept - { - return m_type == value_t::number_float; - } +// #include - /*! - @brief return whether value is an object +// #include - This function returns true iff the JSON value is an object. - @return `true` if type is object, `false` otherwise. +#if JSON_HAS_EXPERIMENTAL_FILESYSTEM +#include +namespace nlohmann::detail +{ +namespace std_fs = std::experimental::filesystem; +} // namespace nlohmann::detail +#elif JSON_HAS_FILESYSTEM +#include +namespace nlohmann::detail +{ +namespace std_fs = std::filesystem; +} // namespace nlohmann::detail +#endif - @complexity Constant. +namespace nlohmann +{ +namespace detail +{ +////////////////// +// constructors // +////////////////// - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. +/* + * Note all external_constructor<>::construct functions need to call + * j.m_value.destroy(j.m_type) to avoid a memory leak in case j contains an + * allocated value (e.g., a string). See bug issue + * https://github.com/nlohmann/json/issues/2865 for more information. + */ - @liveexample{The following code exemplifies `is_object()` for all JSON - types.,is_object} +template struct external_constructor; - @since version 1.0.0 - */ - constexpr bool is_object() const noexcept +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept { - return m_type == value_t::object; + j.m_value.destroy(j.m_type); + j.m_type = value_t::boolean; + j.m_value = b; + j.assert_invariant(); } +}; - /*! - @brief return whether value is an array - - This function returns true iff the JSON value is an array. - - @return `true` if type is array, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_array()` for all JSON - types.,is_array} - - @since version 1.0.0 - */ - constexpr bool is_array() const noexcept +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, const typename BasicJsonType::string_t& s) { - return m_type == value_t::array; + j.m_value.destroy(j.m_type); + j.m_type = value_t::string; + j.m_value = s; + j.assert_invariant(); } - /*! - @brief return whether value is a string - - This function returns true iff the JSON value is a string. - - @return `true` if type is string, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_string()` for all JSON - types.,is_string} - - @since version 1.0.0 - */ - constexpr bool is_string() const noexcept + template + static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s) { - return m_type == value_t::string; + j.m_value.destroy(j.m_type); + j.m_type = value_t::string; + j.m_value = std::move(s); + j.assert_invariant(); } - /*! - @brief return whether value is discarded - - This function returns true iff the JSON value was discarded during parsing - with a callback function (see @ref parser_callback_t). - - @note This function will always be `false` for JSON values after parsing. - That is, discarded values can only occur during parsing, but will be - removed when inside a structured value or replaced by null in other cases. - - @return `true` if type is discarded, `false` otherwise. - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies `is_discarded()` for all JSON - types.,is_discarded} - - @since version 1.0.0 - */ - constexpr bool is_discarded() const noexcept + template < typename BasicJsonType, typename CompatibleStringType, + enable_if_t < !std::is_same::value, + int > = 0 > + static void construct(BasicJsonType& j, const CompatibleStringType& str) { - return m_type == value_t::discarded; + j.m_value.destroy(j.m_type); + j.m_type = value_t::string; + j.m_value.string = j.template create(str); + j.assert_invariant(); } +}; - /*! - @brief return the type of the JSON value (implicit) - - Implicitly return the type of the JSON value as a value from the @ref - value_t enumeration. - - @return the type of the JSON value - - @complexity Constant. - - @exceptionsafety No-throw guarantee: this member function never throws - exceptions. - - @liveexample{The following code exemplifies the @ref value_t operator for - all JSON types.,operator__value_t} - - @since version 1.0.0 - */ - constexpr operator value_t() const noexcept +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, const typename BasicJsonType::binary_t& b) { - return m_type; + j.m_value.destroy(j.m_type); + j.m_type = value_t::binary; + j.m_value = typename BasicJsonType::binary_t(b); + j.assert_invariant(); } - /// @} - - private: - ////////////////// - // value access // - ////////////////// - - /// get a boolean (explicit) - boolean_t get_impl(boolean_t* /*unused*/) const + template + static void construct(BasicJsonType& j, typename BasicJsonType::binary_t&& b) { - if (is_boolean()) - { - return m_value.boolean; - } - - JSON_THROW(std::domain_error("type must be boolean, but is " + type_name())); + j.m_value.destroy(j.m_type); + j.m_type = value_t::binary; + j.m_value = typename BasicJsonType::binary_t(std::move(b)); + j.assert_invariant(); } +}; - /// get a pointer to the value (object) - object_t* get_impl_ptr(object_t* /*unused*/) noexcept +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept { - return is_object() ? m_value.object : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::number_float; + j.m_value = val; + j.assert_invariant(); } +}; - /// get a pointer to the value (object) - constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, typename BasicJsonType::number_unsigned_t val) noexcept { - return is_object() ? m_value.object : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::number_unsigned; + j.m_value = val; + j.assert_invariant(); } +}; - /// get a pointer to the value (array) - array_t* get_impl_ptr(array_t* /*unused*/) noexcept +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, typename BasicJsonType::number_integer_t val) noexcept { - return is_array() ? m_value.array : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::number_integer; + j.m_value = val; + j.assert_invariant(); } +}; - /// get a pointer to the value (array) - constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, const typename BasicJsonType::array_t& arr) { - return is_array() ? m_value.array : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value = arr; + j.set_parents(); + j.assert_invariant(); } - /// get a pointer to the value (string) - string_t* get_impl_ptr(string_t* /*unused*/) noexcept + template + static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr) { - return is_string() ? m_value.string : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value = std::move(arr); + j.set_parents(); + j.assert_invariant(); } - /// get a pointer to the value (string) - constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept + template < typename BasicJsonType, typename CompatibleArrayType, + enable_if_t < !std::is_same::value, + int > = 0 > + static void construct(BasicJsonType& j, const CompatibleArrayType& arr) { - return is_string() ? m_value.string : nullptr; + using std::begin; + using std::end; + + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value.array = j.template create(begin(arr), end(arr)); + j.set_parents(); + j.assert_invariant(); } - /// get a pointer to the value (boolean) - boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept + template + static void construct(BasicJsonType& j, const std::vector& arr) { - return is_boolean() ? &m_value.boolean : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value = value_t::array; + j.m_value.array->reserve(arr.size()); + for (const bool x : arr) + { + j.m_value.array->push_back(x); + j.set_parent(j.m_value.array->back()); + } + j.assert_invariant(); } - /// get a pointer to the value (boolean) - constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept + template::value, int> = 0> + static void construct(BasicJsonType& j, const std::valarray& arr) { - return is_boolean() ? &m_value.boolean : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value = value_t::array; + j.m_value.array->resize(arr.size()); + if (arr.size() > 0) + { + std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin()); + } + j.set_parents(); + j.assert_invariant(); } +}; - /// get a pointer to the value (integer number) - number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, const typename BasicJsonType::object_t& obj) { - return is_number_integer() ? &m_value.number_integer : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::object; + j.m_value = obj; + j.set_parents(); + j.assert_invariant(); } - /// get a pointer to the value (integer number) - constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept + template + static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj) { - return is_number_integer() ? &m_value.number_integer : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::object; + j.m_value = std::move(obj); + j.set_parents(); + j.assert_invariant(); } - /// get a pointer to the value (unsigned number) - number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept + template < typename BasicJsonType, typename CompatibleObjectType, + enable_if_t < !std::is_same::value, int > = 0 > + static void construct(BasicJsonType& j, const CompatibleObjectType& obj) { - return is_number_unsigned() ? &m_value.number_unsigned : nullptr; - } + using std::begin; + using std::end; - /// get a pointer to the value (unsigned number) - constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept - { - return is_number_unsigned() ? &m_value.number_unsigned : nullptr; + j.m_value.destroy(j.m_type); + j.m_type = value_t::object; + j.m_value.object = j.template create(begin(obj), end(obj)); + j.set_parents(); + j.assert_invariant(); } +}; - /// get a pointer to the value (floating-point number) - number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept - { - return is_number_float() ? &m_value.number_float : nullptr; - } +///////////// +// to_json // +///////////// - /// get a pointer to the value (floating-point number) - constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept - { - return is_number_float() ? &m_value.number_float : nullptr; - } +template::value, int> = 0> +void to_json(BasicJsonType& j, T b) noexcept +{ + external_constructor::construct(j, b); +} - /*! - @brief helper function to implement get_ref() +template::value, int> = 0> +void to_json(BasicJsonType& j, const CompatibleString& s) +{ + external_constructor::construct(j, s); +} - This funcion helps to implement get_ref() without code duplication for - const and non-const overloads +template +void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s) +{ + external_constructor::construct(j, std::move(s)); +} - @tparam ThisType will be deduced as `basic_json` or `const basic_json` +template::value, int> = 0> +void to_json(BasicJsonType& j, FloatType val) noexcept +{ + external_constructor::construct(j, static_cast(val)); +} - @throw std::domain_error if ReferenceType does not match underlying value - type of the current JSON - */ - template - static ReferenceType get_ref_impl(ThisType& obj) - { - // helper type - using PointerType = typename std::add_pointer::type; +template::value, int> = 0> +void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept +{ + external_constructor::construct(j, static_cast(val)); +} - // delegate the call to get_ptr<>() - auto ptr = obj.template get_ptr(); +template::value, int> = 0> +void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept +{ + external_constructor::construct(j, static_cast(val)); +} - if (ptr != nullptr) - { - return *ptr; - } +template::value, int> = 0> +void to_json(BasicJsonType& j, EnumType e) noexcept +{ + using underlying_type = typename std::underlying_type::type; + external_constructor::construct(j, static_cast(e)); +} - JSON_THROW(std::domain_error("incompatible ReferenceType for get_ref, actual type is " + - obj.type_name())); - } +template +void to_json(BasicJsonType& j, const std::vector& e) +{ + external_constructor::construct(j, e); +} - public: - /// @name value access - /// Direct access to the stored value of a JSON value. - /// @{ +template < typename BasicJsonType, typename CompatibleArrayType, + enable_if_t < is_compatible_array_type::value&& + !is_compatible_object_type::value&& + !is_compatible_string_type::value&& + !std::is_same::value&& + !is_basic_json::value, + int > = 0 > +void to_json(BasicJsonType& j, const CompatibleArrayType& arr) +{ + external_constructor::construct(j, arr); +} - /*! - @brief get special-case overload +template +void to_json(BasicJsonType& j, const typename BasicJsonType::binary_t& bin) +{ + external_constructor::construct(j, bin); +} - This overloads avoids a lot of template boilerplate, it can be seen as the - identity method +template::value, int> = 0> +void to_json(BasicJsonType& j, const std::valarray& arr) +{ + external_constructor::construct(j, std::move(arr)); +} - @tparam BasicJsonType == @ref basic_json +template +void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr) +{ + external_constructor::construct(j, std::move(arr)); +} - @return a copy of *this +template < typename BasicJsonType, typename CompatibleObjectType, + enable_if_t < is_compatible_object_type::value&& !is_basic_json::value, int > = 0 > +void to_json(BasicJsonType& j, const CompatibleObjectType& obj) +{ + external_constructor::construct(j, obj); +} - @complexity Constant. +template +void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj) +{ + external_constructor::construct(j, std::move(obj)); +} - @since version 2.1.0 - */ - template < - typename BasicJsonType, - detail::enable_if_t::type, - basic_json_t>::value, - int> = 0 > - basic_json get() const - { - return *this; - } +template < + typename BasicJsonType, typename T, std::size_t N, + enable_if_t < !std::is_constructible::value, // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) + int > = 0 > +void to_json(BasicJsonType& j, const T(&arr)[N]) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) +{ + external_constructor::construct(j, arr); +} - /*! - @brief get a value (explicit) +template < typename BasicJsonType, typename T1, typename T2, enable_if_t < std::is_constructible::value&& std::is_constructible::value, int > = 0 > +void to_json(BasicJsonType& j, const std::pair& p) +{ + j = { p.first, p.second }; +} - Explicit type conversion between the JSON value and a compatible value - which is [CopyConstructible](http://en.cppreference.com/w/cpp/concept/CopyConstructible) - and [DefaultConstructible](http://en.cppreference.com/w/cpp/concept/DefaultConstructible). - The value is converted by calling the @ref json_serializer - `from_json()` method. +// for https://github.com/nlohmann/json/pull/1134 +template>::value, int> = 0> +void to_json(BasicJsonType& j, const T& b) +{ + j = { {b.key(), b.value()} }; +} - The function is equivalent to executing - @code {.cpp} - ValueType ret; - JSONSerializer::from_json(*this, ret); - return ret; - @endcode +template +void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence /*unused*/) +{ + j = { std::get(t)... }; +} - This overloads is chosen if: - - @a ValueType is not @ref basic_json, - - @ref json_serializer has a `from_json()` method of the form - `void from_json(const @ref basic_json&, ValueType&)`, and - - @ref json_serializer does not have a `from_json()` method of - the form `ValueType from_json(const @ref basic_json&)` +template::value, int > = 0> +void to_json(BasicJsonType& j, const T& t) +{ + to_json_tuple_impl(j, t, make_index_sequence::value> {}); +} - @tparam ValueTypeCV the provided value type - @tparam ValueType the returned value type +#if JSON_HAS_FILESYSTEM || JSON_HAS_EXPERIMENTAL_FILESYSTEM +template +void to_json(BasicJsonType& j, const std_fs::path& p) +{ + j = p.string(); +} +#endif - @return copy of the JSON value, converted to @a ValueType +struct to_json_fn +{ + template + auto operator()(BasicJsonType& j, T&& val) const noexcept(noexcept(to_json(j, std::forward(val)))) + -> decltype(to_json(j, std::forward(val)), void()) + { + return to_json(j, std::forward(val)); + } +}; +} // namespace detail - @throw what @ref json_serializer `from_json()` method throws +/// namespace to hold default `to_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) +{ +constexpr const auto& to_json = detail::static_const::value; // NOLINT(misc-definitions-in-headers) +} // namespace +} // namespace nlohmann - @liveexample{The example below shows several conversions from JSON values - to other types. There a few things to note: (1) Floating-point numbers can - be converted to integers\, (2) A JSON array can be converted to a standard - `std::vector`\, (3) A JSON object can be converted to C++ - associative containers such as `std::unordered_map`.,get__ValueType_const} +// #include - @since version 2.1.0 - */ - template < - typename ValueTypeCV, - typename ValueType = detail::uncvref_t, - detail::enable_if_t < - not std::is_same::value and - detail::has_from_json::value and - not detail::has_non_default_from_json::value, - int > = 0 > - ValueType get() const noexcept(noexcept( - JSONSerializer::from_json(std::declval(), std::declval()))) +// #include + + +namespace nlohmann +{ + +/// @sa https://json.nlohmann.me/api/adl_serializer/ +template +struct adl_serializer +{ + /// @brief convert a JSON value to any value type + /// @sa https://json.nlohmann.me/api/adl_serializer/from_json/ + template + static auto from_json(BasicJsonType && j, TargetType& val) noexcept( + noexcept(::nlohmann::from_json(std::forward(j), val))) + -> decltype(::nlohmann::from_json(std::forward(j), val), void()) { - // we cannot static_assert on ValueTypeCV being non-const, because - // there is support for get(), which is why we - // still need the uncvref - static_assert(not std::is_reference::value, - "get() cannot be used with reference types, you might want to use get_ref()"); - static_assert(std::is_default_constructible::value, - "types must be DefaultConstructible when used with get()"); + ::nlohmann::from_json(std::forward(j), val); + } - ValueType ret; - JSONSerializer::from_json(*this, ret); - return ret; + /// @brief convert a JSON value to any value type + /// @sa https://json.nlohmann.me/api/adl_serializer/from_json/ + template + static auto from_json(BasicJsonType && j) noexcept( + noexcept(::nlohmann::from_json(std::forward(j), detail::identity_tag {}))) + -> decltype(::nlohmann::from_json(std::forward(j), detail::identity_tag {})) + { + return ::nlohmann::from_json(std::forward(j), detail::identity_tag {}); } - /*! - @brief get a value (explicit); special case + /// @brief convert any value type to a JSON value + /// @sa https://json.nlohmann.me/api/adl_serializer/to_json/ + template + static auto to_json(BasicJsonType& j, TargetType && val) noexcept( + noexcept(::nlohmann::to_json(j, std::forward(val)))) + -> decltype(::nlohmann::to_json(j, std::forward(val)), void()) + { + ::nlohmann::to_json(j, std::forward(val)); + } +}; +} // namespace nlohmann - Explicit type conversion between the JSON value and a compatible value - which is **not** [CopyConstructible](http://en.cppreference.com/w/cpp/concept/CopyConstructible) - and **not** [DefaultConstructible](http://en.cppreference.com/w/cpp/concept/DefaultConstructible). - The value is converted by calling the @ref json_serializer - `from_json()` method. +// #include - The function is equivalent to executing - @code {.cpp} - return JSONSerializer::from_json(*this); - @endcode - This overloads is chosen if: - - @a ValueType is not @ref basic_json and - - @ref json_serializer has a `from_json()` method of the form - `ValueType from_json(const @ref basic_json&)` +#include // uint8_t, uint64_t +#include // tie +#include // move - @note If @ref json_serializer has both overloads of - `from_json()`, this one is chosen. +namespace nlohmann +{ - @tparam ValueTypeCV the provided value type - @tparam ValueType the returned value type +/// @brief an internal type for a backed binary type +/// @sa https://json.nlohmann.me/api/byte_container_with_subtype/ +template +class byte_container_with_subtype : public BinaryType +{ + public: + using container_type = BinaryType; + using subtype_type = std::uint64_t; + + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/byte_container_with_subtype/ + byte_container_with_subtype() noexcept(noexcept(container_type())) + : container_type() + {} + + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/byte_container_with_subtype/ + byte_container_with_subtype(const container_type& b) noexcept(noexcept(container_type(b))) + : container_type(b) + {} + + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/byte_container_with_subtype/ + byte_container_with_subtype(container_type&& b) noexcept(noexcept(container_type(std::move(b)))) + : container_type(std::move(b)) + {} + + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/byte_container_with_subtype/ + byte_container_with_subtype(const container_type& b, subtype_type subtype_) noexcept(noexcept(container_type(b))) + : container_type(b) + , m_subtype(subtype_) + , m_has_subtype(true) + {} + + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/byte_container_with_subtype/ + byte_container_with_subtype(container_type&& b, subtype_type subtype_) noexcept(noexcept(container_type(std::move(b)))) + : container_type(std::move(b)) + , m_subtype(subtype_) + , m_has_subtype(true) + {} + + bool operator==(const byte_container_with_subtype& rhs) const + { + return std::tie(static_cast(*this), m_subtype, m_has_subtype) == + std::tie(static_cast(rhs), rhs.m_subtype, rhs.m_has_subtype); + } - @return copy of the JSON value, converted to @a ValueType + bool operator!=(const byte_container_with_subtype& rhs) const + { + return !(rhs == *this); + } - @throw what @ref json_serializer `from_json()` method throws + /// @brief sets the binary subtype + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/set_subtype/ + void set_subtype(subtype_type subtype_) noexcept + { + m_subtype = subtype_; + m_has_subtype = true; + } - @since version 2.1.0 - */ - template < - typename ValueTypeCV, - typename ValueType = detail::uncvref_t, - detail::enable_if_t::value and - detail::has_non_default_from_json::value, int> = 0 > - ValueType get() const noexcept(noexcept( - JSONSerializer::from_json(std::declval()))) - { - static_assert(not std::is_reference::value, - "get() cannot be used with reference types, you might want to use get_ref()"); - return JSONSerializer::from_json(*this); + /// @brief return the binary subtype + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/subtype/ + constexpr subtype_type subtype() const noexcept + { + return m_has_subtype ? m_subtype : static_cast(-1); } - /*! - @brief get a pointer value (explicit) + /// @brief return whether the value has a subtype + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/has_subtype/ + constexpr bool has_subtype() const noexcept + { + return m_has_subtype; + } - Explicit pointer access to the internally stored JSON value. No copies are - made. + /// @brief clears the binary subtype + /// @sa https://json.nlohmann.me/api/byte_container_with_subtype/clear_subtype/ + void clear_subtype() noexcept + { + m_subtype = 0; + m_has_subtype = false; + } - @warning The pointer becomes invalid if the underlying JSON object - changes. + private: + subtype_type m_subtype = 0; + bool m_has_subtype = false; +}; - @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref - object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, - @ref number_unsigned_t, or @ref number_float_t. +} // namespace nlohmann - @return pointer to the internally stored JSON value if the requested - pointer type @a PointerType fits to the JSON value; `nullptr` otherwise +// #include - @complexity Constant. +// #include - @liveexample{The example below shows how pointers to internal values of a - JSON value can be requested. Note that no type conversions are made and a - `nullptr` is returned if the value and the requested pointer type does not - match.,get__PointerType} +// #include - @sa @ref get_ptr() for explicit pointer-member access +// #include - @since version 1.0.0 - */ - template::value, int>::type = 0> - PointerType get() noexcept - { - // delegate the call to get_ptr - return get_ptr(); - } - /*! - @brief get a pointer value (explicit) - @copydoc get() - */ - template::value, int>::type = 0> - constexpr const PointerType get() const noexcept - { - // delegate the call to get_ptr - return get_ptr(); - } +#include // uint8_t +#include // size_t +#include // hash - /*! - @brief get a pointer value (implicit) +// #include - Implicit pointer access to the internally stored JSON value. No copies are - made. +// #include - @warning Writing data to the pointee of the result yields an undefined - state. - @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref - object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, - @ref number_unsigned_t, or @ref number_float_t. Enforced by a static - assertion. +namespace nlohmann +{ +namespace detail +{ - @return pointer to the internally stored JSON value if the requested - pointer type @a PointerType fits to the JSON value; `nullptr` otherwise +// boost::hash_combine +inline std::size_t combine(std::size_t seed, std::size_t h) noexcept +{ + seed ^= h + 0x9e3779b9 + (seed << 6U) + (seed >> 2U); + return seed; +} - @complexity Constant. +/*! +@brief hash a JSON value +The hash function tries to rely on std::hash where possible. Furthermore, the +type of the JSON value is taken into account to have different hash values for +null, 0, 0U, and false, etc. +@tparam BasicJsonType basic_json specialization +@param j JSON value to hash +@return hash value of j +*/ +template +std::size_t hash(const BasicJsonType& j) +{ + using string_t = typename BasicJsonType::string_t; + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; - @liveexample{The example below shows how pointers to internal values of a - JSON value can be requested. Note that no type conversions are made and a - `nullptr` is returned if the value and the requested pointer type does not - match.,get_ptr} + const auto type = static_cast(j.type()); + switch (j.type()) + { + case BasicJsonType::value_t::null: + case BasicJsonType::value_t::discarded: + { + return combine(type, 0); + } - @since version 1.0.0 - */ - template::value, int>::type = 0> - PointerType get_ptr() noexcept - { - // get the type of the PointerType (remove pointer and const) - using pointee_t = typename std::remove_const::type>::type>::type; - // make sure the type matches the allowed types - static_assert( - std::is_same::value - or std::is_same::value - or std::is_same::value - or std::is_same::value - or std::is_same::value - or std::is_same::value - or std::is_same::value - , "incompatible pointer type"); + case BasicJsonType::value_t::object: + { + auto seed = combine(type, j.size()); + for (const auto& element : j.items()) + { + const auto h = std::hash {}(element.key()); + seed = combine(seed, h); + seed = combine(seed, hash(element.value())); + } + return seed; + } - // delegate the call to get_impl_ptr<>() - return get_impl_ptr(static_cast(nullptr)); - } + case BasicJsonType::value_t::array: + { + auto seed = combine(type, j.size()); + for (const auto& element : j) + { + seed = combine(seed, hash(element)); + } + return seed; + } - /*! - @brief get a pointer value (implicit) - @copydoc get_ptr() - */ - template::value and - std::is_const::type>::value, int>::type = 0> - constexpr const PointerType get_ptr() const noexcept - { - // get the type of the PointerType (remove pointer and const) - using pointee_t = typename std::remove_const::type>::type>::type; - // make sure the type matches the allowed types - static_assert( - std::is_same::value - or std::is_same::value - or std::is_same::value - or std::is_same::value - or std::is_same::value - or std::is_same::value - or std::is_same::value - , "incompatible pointer type"); + case BasicJsonType::value_t::string: + { + const auto h = std::hash {}(j.template get_ref()); + return combine(type, h); + } - // delegate the call to get_impl_ptr<>() const - return get_impl_ptr(static_cast(nullptr)); + case BasicJsonType::value_t::boolean: + { + const auto h = std::hash {}(j.template get()); + return combine(type, h); + } + + case BasicJsonType::value_t::number_integer: + { + const auto h = std::hash {}(j.template get()); + return combine(type, h); + } + + case BasicJsonType::value_t::number_unsigned: + { + const auto h = std::hash {}(j.template get()); + return combine(type, h); + } + + case BasicJsonType::value_t::number_float: + { + const auto h = std::hash {}(j.template get()); + return combine(type, h); + } + + case BasicJsonType::value_t::binary: + { + auto seed = combine(type, j.get_binary().size()); + const auto h = std::hash {}(j.get_binary().has_subtype()); + seed = combine(seed, h); + seed = combine(seed, static_cast(j.get_binary().subtype())); + for (const auto byte : j.get_binary()) + { + seed = combine(seed, std::hash {}(byte)); + } + return seed; + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + return 0; // LCOV_EXCL_LINE } +} - /*! - @brief get a reference value (implicit) +} // namespace detail +} // namespace nlohmann - Implicit reference access to the internally stored JSON value. No copies - are made. +// #include - @warning Writing data to the referee of the result yields an undefined - state. - @tparam ReferenceType reference type; must be a reference to @ref array_t, - @ref object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, or - @ref number_float_t. Enforced by static assertion. +#include // generate_n +#include // array +#include // ldexp +#include // size_t +#include // uint8_t, uint16_t, uint32_t, uint64_t +#include // snprintf +#include // memcpy +#include // back_inserter +#include // numeric_limits +#include // char_traits, string +#include // make_pair, move +#include // vector - @return reference to the internally stored JSON value if the requested - reference type @a ReferenceType fits to the JSON value; throws - std::domain_error otherwise +// #include - @throw std::domain_error in case passed type @a ReferenceType is - incompatible with the stored JSON value +// #include - @complexity Constant. - @liveexample{The example shows several calls to `get_ref()`.,get_ref} +#include // array +#include // size_t +#include // strlen +#include // begin, end, iterator_traits, random_access_iterator_tag, distance, next +#include // shared_ptr, make_shared, addressof +#include // accumulate +#include // string, char_traits +#include // enable_if, is_base_of, is_pointer, is_integral, remove_pointer +#include // pair, declval - @since version 1.1.0 - */ - template::value, int>::type = 0> - ReferenceType get_ref() - { - // delegate call to get_ref_impl - return get_ref_impl(*this); - } +#ifndef JSON_NO_IO + #include // FILE * + #include // istream +#endif // JSON_NO_IO - /*! - @brief get a reference value (implicit) - @copydoc get_ref() - */ - template::value and - std::is_const::type>::value, int>::type = 0> - ReferenceType get_ref() const - { - // delegate call to get_ref_impl - return get_ref_impl(*this); - } +// #include - /*! - @brief get a value (implicit) +// #include - Implicit type conversion between the JSON value and a compatible value. - The call is realized by calling @ref get() const. - @tparam ValueType non-pointer type compatible to the JSON value, for - instance `int` for JSON integer numbers, `bool` for JSON booleans, or - `std::vector` types for JSON arrays. The character type of @ref string_t - as well as an initializer list of this type is excluded to avoid - ambiguities as these types implicitly convert to `std::string`. +namespace nlohmann +{ +namespace detail +{ +/// the supported input formats +enum class input_format_t { json, cbor, msgpack, ubjson, bson }; - @return copy of the JSON value, converted to type @a ValueType +//////////////////// +// input adapters // +//////////////////// - @throw std::domain_error in case passed type @a ValueType is incompatible - to JSON, thrown by @ref get() const +#ifndef JSON_NO_IO +/*! +Input adapter for stdio file access. This adapter read only 1 byte and do not use any + buffer. This adapter is a very low level adapter. +*/ +class file_input_adapter +{ + public: + using char_type = char; - @complexity Linear in the size of the JSON value. + JSON_HEDLEY_NON_NULL(2) + explicit file_input_adapter(std::FILE* f) noexcept + : m_file(f) + {} - @liveexample{The example below shows several conversions from JSON values - to other types. There a few things to note: (1) Floating-point numbers can - be converted to integers\, (2) A JSON array can be converted to a standard - `std::vector`\, (3) A JSON object can be converted to C++ - associative containers such as `std::unordered_map`.,operator__ValueType} + // make class move-only + file_input_adapter(const file_input_adapter&) = delete; + file_input_adapter(file_input_adapter&&) noexcept = default; + file_input_adapter& operator=(const file_input_adapter&) = delete; + file_input_adapter& operator=(file_input_adapter&&) = delete; + ~file_input_adapter() = default; - @since version 1.0.0 - */ - template < typename ValueType, typename std::enable_if < - not std::is_pointer::value and - not std::is_same::value -#ifndef _MSC_VER // fix for issue #167 operator<< ambiguity under VS2015 - and not std::is_same>::value -#endif - , int >::type = 0 > - operator ValueType() const + std::char_traits::int_type get_character() noexcept { - // delegate the call to get<>() const - return get(); + return std::fgetc(m_file); } - /// @} + private: + /// the file pointer to read from + std::FILE* m_file; +}; - //////////////////// - // element access // - //////////////////// +/*! +Input adapter for a (caching) istream. Ignores a UFT Byte Order Mark at +beginning of input. Does not support changing the underlying std::streambuf +in mid-input. Maintains underlying std::istream and std::streambuf to support +subsequent use of standard std::istream operations to process any input +characters following those used in parsing the JSON input. Clears the +std::istream flags; any input errors (e.g., EOF) will be detected by the first +subsequent call for input from the std::istream. +*/ +class input_stream_adapter +{ + public: + using char_type = char; - /// @name element access - /// Access to the JSON value. - /// @{ + ~input_stream_adapter() + { + // clear stream flags; we use underlying streambuf I/O, do not + // maintain ifstream flags, except eof + if (is != nullptr) + { + is->clear(is->rdstate() & std::ios::eofbit); + } + } - /*! - @brief access specified array element with bounds checking + explicit input_stream_adapter(std::istream& i) + : is(&i), sb(i.rdbuf()) + {} - Returns a reference to the element at specified location @a idx, with - bounds checking. + // delete because of pointer members + input_stream_adapter(const input_stream_adapter&) = delete; + input_stream_adapter& operator=(input_stream_adapter&) = delete; + input_stream_adapter& operator=(input_stream_adapter&&) = delete; - @param[in] idx index of the element to access + input_stream_adapter(input_stream_adapter&& rhs) noexcept + : is(rhs.is), sb(rhs.sb) + { + rhs.is = nullptr; + rhs.sb = nullptr; + } - @return reference to the element at index @a idx + // std::istream/std::streambuf use std::char_traits::to_int_type, to + // ensure that std::char_traits::eof() and the character 0xFF do not + // end up as the same value, e.g. 0xFFFFFFFF. + std::char_traits::int_type get_character() + { + auto res = sb->sbumpc(); + // set eof manually, as we don't use the istream interface. + if (JSON_HEDLEY_UNLIKELY(res == std::char_traits::eof())) + { + is->clear(is->rdstate() | std::ios::eofbit); + } + return res; + } - @throw std::domain_error if the JSON value is not an array; example: - `"cannot use at() with string"` - @throw std::out_of_range if the index @a idx is out of range of the array; - that is, `idx >= size()`; example: `"array index 7 is out of range"` + private: + /// the associated input stream + std::istream* is = nullptr; + std::streambuf* sb = nullptr; +}; +#endif // JSON_NO_IO - @complexity Constant. +// General-purpose iterator-based adapter. It might not be as fast as +// theoretically possible for some containers, but it is extremely versatile. +template +class iterator_input_adapter +{ + public: + using char_type = typename std::iterator_traits::value_type; - @liveexample{The example below shows how array elements can be read and - written using `at()`.,at__size_type} + iterator_input_adapter(IteratorType first, IteratorType last) + : current(std::move(first)), end(std::move(last)) + {} - @since version 1.0.0 - */ - reference at(size_type idx) + typename std::char_traits::int_type get_character() { - // at only works for arrays - if (is_array()) - { - JSON_TRY - { - return m_value.array->at(idx); - } - JSON_CATCH (std::out_of_range&) - { - // create better exception explanation - JSON_THROW(std::out_of_range("array index " + std::to_string(idx) + " is out of range")); - } - } - else + if (JSON_HEDLEY_LIKELY(current != end)) { - JSON_THROW(std::domain_error("cannot use at() with " + type_name())); + auto result = std::char_traits::to_int_type(*current); + std::advance(current, 1); + return result; } - } - - /*! - @brief access specified array element with bounds checking - Returns a const reference to the element at specified location @a idx, - with bounds checking. + return std::char_traits::eof(); + } - @param[in] idx index of the element to access + private: + IteratorType current; + IteratorType end; - @return const reference to the element at index @a idx + template + friend struct wide_string_input_helper; - @throw std::domain_error if the JSON value is not an array; example: - `"cannot use at() with string"` - @throw std::out_of_range if the index @a idx is out of range of the array; - that is, `idx >= size()`; example: `"array index 7 is out of range"` + bool empty() const + { + return current == end; + } +}; - @complexity Constant. - @liveexample{The example below shows how array elements can be read using - `at()`.,at__size_type_const} +template +struct wide_string_input_helper; - @since version 1.0.0 - */ - const_reference at(size_type idx) const +template +struct wide_string_input_helper +{ + // UTF-32 + static void fill_buffer(BaseInputAdapter& input, + std::array::int_type, 4>& utf8_bytes, + size_t& utf8_bytes_index, + size_t& utf8_bytes_filled) { - // at only works for arrays - if (is_array()) + utf8_bytes_index = 0; + + if (JSON_HEDLEY_UNLIKELY(input.empty())) { - JSON_TRY + utf8_bytes[0] = std::char_traits::eof(); + utf8_bytes_filled = 1; + } + else + { + // get the current character + const auto wc = input.get_character(); + + // UTF-32 to UTF-8 encoding + if (wc < 0x80) { - return m_value.array->at(idx); + utf8_bytes[0] = static_cast::int_type>(wc); + utf8_bytes_filled = 1; } - JSON_CATCH (std::out_of_range&) + else if (wc <= 0x7FF) { - // create better exception explanation - JSON_THROW(std::out_of_range("array index " + std::to_string(idx) + " is out of range")); + utf8_bytes[0] = static_cast::int_type>(0xC0u | ((static_cast(wc) >> 6u) & 0x1Fu)); + utf8_bytes[1] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 2; + } + else if (wc <= 0xFFFF) + { + utf8_bytes[0] = static_cast::int_type>(0xE0u | ((static_cast(wc) >> 12u) & 0x0Fu)); + utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); + utf8_bytes[2] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 3; + } + else if (wc <= 0x10FFFF) + { + utf8_bytes[0] = static_cast::int_type>(0xF0u | ((static_cast(wc) >> 18u) & 0x07u)); + utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 12u) & 0x3Fu)); + utf8_bytes[2] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); + utf8_bytes[3] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 4; + } + else + { + // unknown character + utf8_bytes[0] = static_cast::int_type>(wc); + utf8_bytes_filled = 1; } } + } +}; + +template +struct wide_string_input_helper +{ + // UTF-16 + static void fill_buffer(BaseInputAdapter& input, + std::array::int_type, 4>& utf8_bytes, + size_t& utf8_bytes_index, + size_t& utf8_bytes_filled) + { + utf8_bytes_index = 0; + + if (JSON_HEDLEY_UNLIKELY(input.empty())) + { + utf8_bytes[0] = std::char_traits::eof(); + utf8_bytes_filled = 1; + } else { - JSON_THROW(std::domain_error("cannot use at() with " + type_name())); + // get the current character + const auto wc = input.get_character(); + + // UTF-16 to UTF-8 encoding + if (wc < 0x80) + { + utf8_bytes[0] = static_cast::int_type>(wc); + utf8_bytes_filled = 1; + } + else if (wc <= 0x7FF) + { + utf8_bytes[0] = static_cast::int_type>(0xC0u | ((static_cast(wc) >> 6u))); + utf8_bytes[1] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 2; + } + else if (0xD800 > wc || wc >= 0xE000) + { + utf8_bytes[0] = static_cast::int_type>(0xE0u | ((static_cast(wc) >> 12u))); + utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); + utf8_bytes[2] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 3; + } + else + { + if (JSON_HEDLEY_UNLIKELY(!input.empty())) + { + const auto wc2 = static_cast(input.get_character()); + const auto charcode = 0x10000u + (((static_cast(wc) & 0x3FFu) << 10u) | (wc2 & 0x3FFu)); + utf8_bytes[0] = static_cast::int_type>(0xF0u | (charcode >> 18u)); + utf8_bytes[1] = static_cast::int_type>(0x80u | ((charcode >> 12u) & 0x3Fu)); + utf8_bytes[2] = static_cast::int_type>(0x80u | ((charcode >> 6u) & 0x3Fu)); + utf8_bytes[3] = static_cast::int_type>(0x80u | (charcode & 0x3Fu)); + utf8_bytes_filled = 4; + } + else + { + utf8_bytes[0] = static_cast::int_type>(wc); + utf8_bytes_filled = 1; + } + } } } +}; - /*! - @brief access specified object element with bounds checking +// Wraps another input apdater to convert wide character types into individual bytes. +template +class wide_string_input_adapter +{ + public: + using char_type = char; - Returns a reference to the element at with specified key @a key, with - bounds checking. + wide_string_input_adapter(BaseInputAdapter base) + : base_adapter(base) {} - @param[in] key key of the element to access + typename std::char_traits::int_type get_character() noexcept + { + // check if buffer needs to be filled + if (utf8_bytes_index == utf8_bytes_filled) + { + fill_buffer(); - @return reference to the element at key @a key + JSON_ASSERT(utf8_bytes_filled > 0); + JSON_ASSERT(utf8_bytes_index == 0); + } - @throw std::domain_error if the JSON value is not an object; example: - `"cannot use at() with boolean"` - @throw std::out_of_range if the key @a key is is not stored in the object; - that is, `find(key) == end()`; example: `"key "the fast" not found"` + // use buffer + JSON_ASSERT(utf8_bytes_filled > 0); + JSON_ASSERT(utf8_bytes_index < utf8_bytes_filled); + return utf8_bytes[utf8_bytes_index++]; + } - @complexity Logarithmic in the size of the container. + private: + BaseInputAdapter base_adapter; - @liveexample{The example below shows how object elements can be read and - written using `at()`.,at__object_t_key_type} + template + void fill_buffer() + { + wide_string_input_helper::fill_buffer(base_adapter, utf8_bytes, utf8_bytes_index, utf8_bytes_filled); + } - @sa @ref operator[](const typename object_t::key_type&) for unchecked - access by reference - @sa @ref value() for access by value with a default value + /// a buffer for UTF-8 bytes + std::array::int_type, 4> utf8_bytes = {{0, 0, 0, 0}}; - @since version 1.0.0 - */ - reference at(const typename object_t::key_type& key) - { - // at only works for objects - if (is_object()) - { - JSON_TRY - { - return m_value.object->at(key); - } - JSON_CATCH (std::out_of_range&) - { - // create better exception explanation - JSON_THROW(std::out_of_range("key '" + key + "' not found")); - } - } - else - { - JSON_THROW(std::domain_error("cannot use at() with " + type_name())); - } - } - - /*! - @brief access specified object element with bounds checking - - Returns a const reference to the element at with specified key @a key, - with bounds checking. - - @param[in] key key of the element to access + /// index to the utf8_codes array for the next valid byte + std::size_t utf8_bytes_index = 0; + /// number of valid bytes in the utf8_codes array + std::size_t utf8_bytes_filled = 0; +}; - @return const reference to the element at key @a key - @throw std::domain_error if the JSON value is not an object; example: - `"cannot use at() with boolean"` - @throw std::out_of_range if the key @a key is is not stored in the object; - that is, `find(key) == end()`; example: `"key "the fast" not found"` +template +struct iterator_input_adapter_factory +{ + using iterator_type = IteratorType; + using char_type = typename std::iterator_traits::value_type; + using adapter_type = iterator_input_adapter; - @complexity Logarithmic in the size of the container. + static adapter_type create(IteratorType first, IteratorType last) + { + return adapter_type(std::move(first), std::move(last)); + } +}; - @liveexample{The example below shows how object elements can be read using - `at()`.,at__object_t_key_type_const} +template +struct is_iterator_of_multibyte +{ + using value_type = typename std::iterator_traits::value_type; + enum + { + value = sizeof(value_type) > 1 + }; +}; - @sa @ref operator[](const typename object_t::key_type&) for unchecked - access by reference - @sa @ref value() for access by value with a default value +template +struct iterator_input_adapter_factory::value>> +{ + using iterator_type = IteratorType; + using char_type = typename std::iterator_traits::value_type; + using base_adapter_type = iterator_input_adapter; + using adapter_type = wide_string_input_adapter; - @since version 1.0.0 - */ - const_reference at(const typename object_t::key_type& key) const + static adapter_type create(IteratorType first, IteratorType last) { - // at only works for objects - if (is_object()) - { - JSON_TRY - { - return m_value.object->at(key); - } - JSON_CATCH (std::out_of_range&) - { - // create better exception explanation - JSON_THROW(std::out_of_range("key '" + key + "' not found")); - } - } - else - { - JSON_THROW(std::domain_error("cannot use at() with " + type_name())); - } + return adapter_type(base_adapter_type(std::move(first), std::move(last))); } +}; - /*! - @brief access specified array element +// General purpose iterator-based input +template +typename iterator_input_adapter_factory::adapter_type input_adapter(IteratorType first, IteratorType last) +{ + using factory_type = iterator_input_adapter_factory; + return factory_type::create(first, last); +} - Returns a reference to the element at specified location @a idx. +// Convenience shorthand from container to iterator +// Enables ADL on begin(container) and end(container) +// Encloses the using declarations in namespace for not to leak them to outside scope - @note If @a idx is beyond the range of the array (i.e., `idx >= size()`), - then the array is silently filled up with `null` values to make `idx` a - valid reference to the last stored element. +namespace container_input_adapter_factory_impl +{ - @param[in] idx index of the element to access +using std::begin; +using std::end; - @return reference to the element at index @a idx +template +struct container_input_adapter_factory {}; - @throw std::domain_error if JSON is not an array or null; example: - `"cannot use operator[] with string"` +template +struct container_input_adapter_factory< ContainerType, + void_t()), end(std::declval()))>> + { + using adapter_type = decltype(input_adapter(begin(std::declval()), end(std::declval()))); - @complexity Constant if @a idx is in the range of the array. Otherwise - linear in `idx - size()`. + static adapter_type create(const ContainerType& container) +{ + return input_adapter(begin(container), end(container)); +} + }; - @liveexample{The example below shows how array elements can be read and - written using `[]` operator. Note the addition of `null` - values.,operatorarray__size_type} +} // namespace container_input_adapter_factory_impl - @since version 1.0.0 - */ - reference operator[](size_type idx) - { - // implicitly convert null value to an empty array - if (is_null()) - { - m_type = value_t::array; - m_value.array = create(); - assert_invariant(); - } +template +typename container_input_adapter_factory_impl::container_input_adapter_factory::adapter_type input_adapter(const ContainerType& container) +{ + return container_input_adapter_factory_impl::container_input_adapter_factory::create(container); +} - // operator[] only works for arrays - if (is_array()) - { - // fill up array with null values if given idx is outside range - if (idx >= m_value.array->size()) - { - m_value.array->insert(m_value.array->end(), - idx - m_value.array->size() + 1, - basic_json()); - } +#ifndef JSON_NO_IO +// Special cases with fast paths +inline file_input_adapter input_adapter(std::FILE* file) +{ + return file_input_adapter(file); +} - return m_value.array->operator[](idx); - } +inline input_stream_adapter input_adapter(std::istream& stream) +{ + return input_stream_adapter(stream); +} + +inline input_stream_adapter input_adapter(std::istream&& stream) +{ + return input_stream_adapter(stream); +} +#endif // JSON_NO_IO + +using contiguous_bytes_input_adapter = decltype(input_adapter(std::declval(), std::declval())); + +// Null-delimited strings, and the like. +template < typename CharT, + typename std::enable_if < + std::is_pointer::value&& + !std::is_array::value&& + std::is_integral::type>::value&& + sizeof(typename std::remove_pointer::type) == 1, + int >::type = 0 > +contiguous_bytes_input_adapter input_adapter(CharT b) +{ + auto length = std::strlen(reinterpret_cast(b)); + const auto* ptr = reinterpret_cast(b); + return input_adapter(ptr, ptr + length); +} - JSON_THROW(std::domain_error("cannot use operator[] with " + type_name())); +template +auto input_adapter(T (&array)[N]) -> decltype(input_adapter(array, array + N)) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) +{ + return input_adapter(array, array + N); +} + +// This class only handles inputs of input_buffer_adapter type. +// It's required so that expressions like {ptr, len} can be implicitly cast +// to the correct adapter. +class span_input_adapter +{ + public: + template < typename CharT, + typename std::enable_if < + std::is_pointer::value&& + std::is_integral::type>::value&& + sizeof(typename std::remove_pointer::type) == 1, + int >::type = 0 > + span_input_adapter(CharT b, std::size_t l) + : ia(reinterpret_cast(b), reinterpret_cast(b) + l) {} + + template::iterator_category, std::random_access_iterator_tag>::value, + int>::type = 0> + span_input_adapter(IteratorType first, IteratorType last) + : ia(input_adapter(first, last)) {} + + contiguous_bytes_input_adapter&& get() + { + return std::move(ia); // NOLINT(hicpp-move-const-arg,performance-move-const-arg) } - /*! - @brief access specified array element + private: + contiguous_bytes_input_adapter ia; +}; +} // namespace detail +} // namespace nlohmann - Returns a const reference to the element at specified location @a idx. +// #include - @param[in] idx index of the element to access - @return const reference to the element at index @a idx +#include +#include // string +#include // move +#include // vector - @throw std::domain_error if JSON is not an array; example: `"cannot use - operator[] with null"` +// #include - @complexity Constant. +// #include - @liveexample{The example below shows how array elements can be read using - the `[]` operator.,operatorarray__size_type_const} - @since version 1.0.0 - */ - const_reference operator[](size_type idx) const - { - // const operator[] only works for arrays - if (is_array()) - { - return m_value.array->operator[](idx); - } +namespace nlohmann +{ - JSON_THROW(std::domain_error("cannot use operator[] with " + type_name())); - } +/*! +@brief SAX interface +This class describes the SAX interface used by @ref nlohmann::json::sax_parse. +Each function is called in different situations while the input is parsed. The +boolean return value informs the parser whether to continue processing the +input. +*/ +template +struct json_sax +{ + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; /*! - @brief access specified object element + @brief a null value was read + @return whether parsing should proceed + */ + virtual bool null() = 0; - Returns a reference to the element at with specified key @a key. + /*! + @brief a boolean value was read + @param[in] val boolean value + @return whether parsing should proceed + */ + virtual bool boolean(bool val) = 0; - @note If @a key is not found in the object, then it is silently added to - the object and filled with a `null` value to make `key` a valid reference. - In case the value was `null` before, it is converted to an object. + /*! + @brief an integer number was read + @param[in] val integer value + @return whether parsing should proceed + */ + virtual bool number_integer(number_integer_t val) = 0; - @param[in] key key of the element to access + /*! + @brief an unsigned integer number was read + @param[in] val unsigned integer value + @return whether parsing should proceed + */ + virtual bool number_unsigned(number_unsigned_t val) = 0; - @return reference to the element at key @a key + /*! + @brief a floating-point number was read + @param[in] val floating-point value + @param[in] s raw token value + @return whether parsing should proceed + */ + virtual bool number_float(number_float_t val, const string_t& s) = 0; - @throw std::domain_error if JSON is not an object or null; example: - `"cannot use operator[] with string"` + /*! + @brief a string value was read + @param[in] val string value + @return whether parsing should proceed + @note It is safe to move the passed string value. + */ + virtual bool string(string_t& val) = 0; - @complexity Logarithmic in the size of the container. + /*! + @brief a binary value was read + @param[in] val binary value + @return whether parsing should proceed + @note It is safe to move the passed binary value. + */ + virtual bool binary(binary_t& val) = 0; - @liveexample{The example below shows how object elements can be read and - written using the `[]` operator.,operatorarray__key_type} + /*! + @brief the beginning of an object was read + @param[in] elements number of object elements or -1 if unknown + @return whether parsing should proceed + @note binary formats may report the number of elements + */ + virtual bool start_object(std::size_t elements) = 0; - @sa @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa @ref value() for access by value with a default value + /*! + @brief an object key was read + @param[in] val object key + @return whether parsing should proceed + @note It is safe to move the passed string. + */ + virtual bool key(string_t& val) = 0; - @since version 1.0.0 + /*! + @brief the end of an object was read + @return whether parsing should proceed */ - reference operator[](const typename object_t::key_type& key) - { - // implicitly convert null value to an empty object - if (is_null()) - { - m_type = value_t::object; - m_value.object = create(); - assert_invariant(); - } + virtual bool end_object() = 0; - // operator[] only works for objects - if (is_object()) - { - return m_value.object->operator[](key); - } + /*! + @brief the beginning of an array was read + @param[in] elements number of array elements or -1 if unknown + @return whether parsing should proceed + @note binary formats may report the number of elements + */ + virtual bool start_array(std::size_t elements) = 0; - JSON_THROW(std::domain_error("cannot use operator[] with " + type_name())); - } + /*! + @brief the end of an array was read + @return whether parsing should proceed + */ + virtual bool end_array() = 0; /*! - @brief read-only access specified object element + @brief a parse error occurred + @param[in] position the position in the input where the error occurs + @param[in] last_token the last read token + @param[in] ex an exception object describing the error + @return whether parsing should proceed (must return false) + */ + virtual bool parse_error(std::size_t position, + const std::string& last_token, + const detail::exception& ex) = 0; + + json_sax() = default; + json_sax(const json_sax&) = default; + json_sax(json_sax&&) noexcept = default; + json_sax& operator=(const json_sax&) = default; + json_sax& operator=(json_sax&&) noexcept = default; + virtual ~json_sax() = default; +}; - Returns a const reference to the element at with specified key @a key. No - bounds checking is performed. - @warning If the element with key @a key does not exist, the behavior is - undefined. +namespace detail +{ +/*! +@brief SAX implementation to create a JSON value from SAX events +This class implements the @ref json_sax interface and processes the SAX events +to create a JSON value which makes it basically a DOM parser. The structure or +hierarchy of the JSON value is managed by the stack `ref_stack` which contains +a pointer to the respective array or object for each recursion depth. +After successful parsing, the value that is passed by reference to the +constructor contains the parsed value. +@tparam BasicJsonType the JSON type +*/ +template +class json_sax_dom_parser +{ + public: + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; - @param[in] key key of the element to access + /*! + @param[in,out] r reference to a JSON value that is manipulated while + parsing + @param[in] allow_exceptions_ whether parse errors yield exceptions + */ + explicit json_sax_dom_parser(BasicJsonType& r, const bool allow_exceptions_ = true) + : root(r), allow_exceptions(allow_exceptions_) + {} + + // make class move-only + json_sax_dom_parser(const json_sax_dom_parser&) = delete; + json_sax_dom_parser(json_sax_dom_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + json_sax_dom_parser& operator=(const json_sax_dom_parser&) = delete; + json_sax_dom_parser& operator=(json_sax_dom_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + ~json_sax_dom_parser() = default; + + bool null() + { + handle_value(nullptr); + return true; + } - @return const reference to the element at key @a key + bool boolean(bool val) + { + handle_value(val); + return true; + } - @pre The element with key @a key must exist. **This precondition is - enforced with an assertion.** + bool number_integer(number_integer_t val) + { + handle_value(val); + return true; + } - @throw std::domain_error if JSON is not an object; example: `"cannot use - operator[] with null"` + bool number_unsigned(number_unsigned_t val) + { + handle_value(val); + return true; + } - @complexity Logarithmic in the size of the container. + bool number_float(number_float_t val, const string_t& /*unused*/) + { + handle_value(val); + return true; + } - @liveexample{The example below shows how object elements can be read using - the `[]` operator.,operatorarray__key_type_const} + bool string(string_t& val) + { + handle_value(val); + return true; + } - @sa @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa @ref value() for access by value with a default value + bool binary(binary_t& val) + { + handle_value(std::move(val)); + return true; + } - @since version 1.0.0 - */ - const_reference operator[](const typename object_t::key_type& key) const + bool start_object(std::size_t len) { - // const operator[] only works for objects - if (is_object()) + ref_stack.push_back(handle_value(BasicJsonType::value_t::object)); + + if (JSON_HEDLEY_UNLIKELY(len != static_cast(-1) && len > ref_stack.back()->max_size())) { - assert(m_value.object->find(key) != m_value.object->end()); - return m_value.object->find(key)->second; + JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len), *ref_stack.back())); } - JSON_THROW(std::domain_error("cannot use operator[] with " + type_name())); + return true; } - /*! - @brief access specified object element - - Returns a reference to the element at with specified key @a key. - - @note If @a key is not found in the object, then it is silently added to - the object and filled with a `null` value to make `key` a valid reference. - In case the value was `null` before, it is converted to an object. + bool key(string_t& val) + { + // add null at given key and store the reference for later + object_element = &(ref_stack.back()->m_value.object->operator[](val)); + return true; + } - @param[in] key key of the element to access + bool end_object() + { + ref_stack.back()->set_parents(); + ref_stack.pop_back(); + return true; + } - @return reference to the element at key @a key + bool start_array(std::size_t len) + { + ref_stack.push_back(handle_value(BasicJsonType::value_t::array)); - @throw std::domain_error if JSON is not an object or null; example: - `"cannot use operator[] with string"` + if (JSON_HEDLEY_UNLIKELY(len != static_cast(-1) && len > ref_stack.back()->max_size())) + { + JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len), *ref_stack.back())); + } - @complexity Logarithmic in the size of the container. + return true; + } - @liveexample{The example below shows how object elements can be read and - written using the `[]` operator.,operatorarray__key_type} + bool end_array() + { + ref_stack.back()->set_parents(); + ref_stack.pop_back(); + return true; + } - @sa @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa @ref value() for access by value with a default value + template + bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, + const Exception& ex) + { + errored = true; + static_cast(ex); + if (allow_exceptions) + { + JSON_THROW(ex); + } + return false; + } - @since version 1.0.0 - */ - template - reference operator[](T * (&key)[n]) + constexpr bool is_errored() const { - return operator[](static_cast(key)); + return errored; } + private: /*! - @brief read-only access specified object element + @invariant If the ref stack is empty, then the passed value will be the new + root. + @invariant If the ref stack contains a value, then it is an array or an + object to which we can add elements + */ + template + JSON_HEDLEY_RETURNS_NON_NULL + BasicJsonType* handle_value(Value&& v) + { + if (ref_stack.empty()) + { + root = BasicJsonType(std::forward(v)); + return &root; + } - Returns a const reference to the element at with specified key @a key. No - bounds checking is performed. + JSON_ASSERT(ref_stack.back()->is_array() || ref_stack.back()->is_object()); - @warning If the element with key @a key does not exist, the behavior is - undefined. + if (ref_stack.back()->is_array()) + { + ref_stack.back()->m_value.array->emplace_back(std::forward(v)); + return &(ref_stack.back()->m_value.array->back()); + } - @note This function is required for compatibility reasons with Clang. + JSON_ASSERT(ref_stack.back()->is_object()); + JSON_ASSERT(object_element); + *object_element = BasicJsonType(std::forward(v)); + return object_element; + } - @param[in] key key of the element to access + /// the parsed JSON value + BasicJsonType& root; + /// stack to model hierarchy of values + std::vector ref_stack {}; + /// helper to hold the reference for the next object element + BasicJsonType* object_element = nullptr; + /// whether a syntax error occurred + bool errored = false; + /// whether to throw exceptions in case of errors + const bool allow_exceptions = true; +}; - @return const reference to the element at key @a key +template +class json_sax_dom_callback_parser +{ + public: + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using parser_callback_t = typename BasicJsonType::parser_callback_t; + using parse_event_t = typename BasicJsonType::parse_event_t; + + json_sax_dom_callback_parser(BasicJsonType& r, + const parser_callback_t cb, + const bool allow_exceptions_ = true) + : root(r), callback(cb), allow_exceptions(allow_exceptions_) + { + keep_stack.push_back(true); + } - @throw std::domain_error if JSON is not an object; example: `"cannot use - operator[] with null"` + // make class move-only + json_sax_dom_callback_parser(const json_sax_dom_callback_parser&) = delete; + json_sax_dom_callback_parser(json_sax_dom_callback_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + json_sax_dom_callback_parser& operator=(const json_sax_dom_callback_parser&) = delete; + json_sax_dom_callback_parser& operator=(json_sax_dom_callback_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + ~json_sax_dom_callback_parser() = default; - @complexity Logarithmic in the size of the container. + bool null() + { + handle_value(nullptr); + return true; + } - @liveexample{The example below shows how object elements can be read using - the `[]` operator.,operatorarray__key_type_const} + bool boolean(bool val) + { + handle_value(val); + return true; + } - @sa @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa @ref value() for access by value with a default value + bool number_integer(number_integer_t val) + { + handle_value(val); + return true; + } - @since version 1.0.0 - */ - template - const_reference operator[](T * (&key)[n]) const + bool number_unsigned(number_unsigned_t val) { - return operator[](static_cast(key)); + handle_value(val); + return true; } - /*! - @brief access specified object element + bool number_float(number_float_t val, const string_t& /*unused*/) + { + handle_value(val); + return true; + } - Returns a reference to the element at with specified key @a key. + bool string(string_t& val) + { + handle_value(val); + return true; + } - @note If @a key is not found in the object, then it is silently added to - the object and filled with a `null` value to make `key` a valid reference. - In case the value was `null` before, it is converted to an object. + bool binary(binary_t& val) + { + handle_value(std::move(val)); + return true; + } - @param[in] key key of the element to access + bool start_object(std::size_t len) + { + // check callback for object start + const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::object_start, discarded); + keep_stack.push_back(keep); - @return reference to the element at key @a key + auto val = handle_value(BasicJsonType::value_t::object, true); + ref_stack.push_back(val.second); - @throw std::domain_error if JSON is not an object or null; example: - `"cannot use operator[] with string"` + // check object limit + if (ref_stack.back() && JSON_HEDLEY_UNLIKELY(len != static_cast(-1) && len > ref_stack.back()->max_size())) + { + JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len), *ref_stack.back())); + } - @complexity Logarithmic in the size of the container. + return true; + } - @liveexample{The example below shows how object elements can be read and - written using the `[]` operator.,operatorarray__key_type} + bool key(string_t& val) + { + BasicJsonType k = BasicJsonType(val); - @sa @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa @ref value() for access by value with a default value + // check callback for key + const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::key, k); + key_keep_stack.push_back(keep); - @since version 1.1.0 - */ - template - reference operator[](T* key) - { - // implicitly convert null to object - if (is_null()) + // add discarded value at given key and store the reference for later + if (keep && ref_stack.back()) { - m_type = value_t::object; - m_value = value_t::object; - assert_invariant(); + object_element = &(ref_stack.back()->m_value.object->operator[](val) = discarded); } - // at only works for objects - if (is_object()) + return true; + } + + bool end_object() + { + if (ref_stack.back()) { - return m_value.object->operator[](key); + if (!callback(static_cast(ref_stack.size()) - 1, parse_event_t::object_end, *ref_stack.back())) + { + // discard object + *ref_stack.back() = discarded; + } + else + { + ref_stack.back()->set_parents(); + } } - JSON_THROW(std::domain_error("cannot use operator[] with " + type_name())); - } - - /*! - @brief read-only access specified object element + JSON_ASSERT(!ref_stack.empty()); + JSON_ASSERT(!keep_stack.empty()); + ref_stack.pop_back(); + keep_stack.pop_back(); - Returns a const reference to the element at with specified key @a key. No - bounds checking is performed. + if (!ref_stack.empty() && ref_stack.back() && ref_stack.back()->is_structured()) + { + // remove discarded value + for (auto it = ref_stack.back()->begin(); it != ref_stack.back()->end(); ++it) + { + if (it->is_discarded()) + { + ref_stack.back()->erase(it); + break; + } + } + } - @warning If the element with key @a key does not exist, the behavior is - undefined. + return true; + } - @param[in] key key of the element to access + bool start_array(std::size_t len) + { + const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::array_start, discarded); + keep_stack.push_back(keep); - @return const reference to the element at key @a key + auto val = handle_value(BasicJsonType::value_t::array, true); + ref_stack.push_back(val.second); - @pre The element with key @a key must exist. **This precondition is - enforced with an assertion.** + // check array limit + if (ref_stack.back() && JSON_HEDLEY_UNLIKELY(len != static_cast(-1) && len > ref_stack.back()->max_size())) + { + JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len), *ref_stack.back())); + } - @throw std::domain_error if JSON is not an object; example: `"cannot use - operator[] with null"` + return true; + } - @complexity Logarithmic in the size of the container. + bool end_array() + { + bool keep = true; - @liveexample{The example below shows how object elements can be read using - the `[]` operator.,operatorarray__key_type_const} + if (ref_stack.back()) + { + keep = callback(static_cast(ref_stack.size()) - 1, parse_event_t::array_end, *ref_stack.back()); + if (keep) + { + ref_stack.back()->set_parents(); + } + else + { + // discard array + *ref_stack.back() = discarded; + } + } - @sa @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa @ref value() for access by value with a default value + JSON_ASSERT(!ref_stack.empty()); + JSON_ASSERT(!keep_stack.empty()); + ref_stack.pop_back(); + keep_stack.pop_back(); - @since version 1.1.0 - */ - template - const_reference operator[](T* key) const - { - // at only works for objects - if (is_object()) + // remove discarded value + if (!keep && !ref_stack.empty() && ref_stack.back()->is_array()) { - assert(m_value.object->find(key) != m_value.object->end()); - return m_value.object->find(key)->second; + ref_stack.back()->m_value.array->pop_back(); } - JSON_THROW(std::domain_error("cannot use operator[] with " + type_name())); + return true; } - /*! - @brief access specified object element with default value - - Returns either a copy of an object's element at the specified key @a key - or a given default value if no element with key @a key exists. - - The function is basically equivalent to executing - @code {.cpp} - try { - return at(key); - } catch(std::out_of_range) { - return default_value; + template + bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, + const Exception& ex) + { + errored = true; + static_cast(ex); + if (allow_exceptions) + { + JSON_THROW(ex); + } + return false; } - @endcode - - @note Unlike @ref at(const typename object_t::key_type&), this function - does not throw if the given key @a key was not found. - - @note Unlike @ref operator[](const typename object_t::key_type& key), this - function does not implicitly add an element to the position defined by @a - key. This function is furthermore also applicable to const objects. - - @param[in] key key of the element to access - @param[in] default_value the value to return if @a key is not found - - @tparam ValueType type compatible to JSON values, for instance `int` for - JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for - JSON arrays. Note the type of the expected value at @a key and the default - value @a default_value must be compatible. - - @return copy of the element at key @a key or @a default_value if @a key - is not found - - @throw std::domain_error if JSON is not an object; example: `"cannot use - value() with null"` - - @complexity Logarithmic in the size of the container. - - @liveexample{The example below shows how object elements can be queried - with a default value.,basic_json__value} - @sa @ref at(const typename object_t::key_type&) for access by reference - with range checking - @sa @ref operator[](const typename object_t::key_type&) for unchecked - access by reference + constexpr bool is_errored() const + { + return errored; + } - @since version 1.0.0 + private: + /*! + @param[in] v value to add to the JSON value we build during parsing + @param[in] skip_callback whether we should skip calling the callback + function; this is required after start_array() and + start_object() SAX events, because otherwise we would call the + callback function with an empty array or object, respectively. + @invariant If the ref stack is empty, then the passed value will be the new + root. + @invariant If the ref stack contains a value, then it is an array or an + object to which we can add elements + @return pair of boolean (whether value should be kept) and pointer (to the + passed value in the ref_stack hierarchy; nullptr if not kept) */ - template::value, int>::type = 0> - ValueType value(const typename object_t::key_type& key, ValueType default_value) const + template + std::pair handle_value(Value&& v, const bool skip_callback = false) { - // at only works for objects - if (is_object()) - { - // if key is found, return value and given default value otherwise - const auto it = find(key); - if (it != end()) - { - return *it; - } + JSON_ASSERT(!keep_stack.empty()); - return default_value; - } - else + // do not handle this value if we know it would be added to a discarded + // container + if (!keep_stack.back()) { - JSON_THROW(std::domain_error("cannot use value() with " + type_name())); + return {false, nullptr}; } - } - /*! - @brief overload for a default value of type const char* - @copydoc basic_json::value(const typename object_t::key_type&, ValueType) const - */ - string_t value(const typename object_t::key_type& key, const char* default_value) const - { - return value(key, string_t(default_value)); - } + // create value + auto value = BasicJsonType(std::forward(v)); - /*! - @brief access specified object element via JSON Pointer with default value + // check callback + const bool keep = skip_callback || callback(static_cast(ref_stack.size()), parse_event_t::value, value); - Returns either a copy of an object's element at the specified key @a key - or a given default value if no element with key @a key exists. + // do not handle this value if we just learnt it shall be discarded + if (!keep) + { + return {false, nullptr}; + } - The function is basically equivalent to executing - @code {.cpp} - try { - return at(ptr); - } catch(std::out_of_range) { - return default_value; - } - @endcode + if (ref_stack.empty()) + { + root = std::move(value); + return {true, &root}; + } - @note Unlike @ref at(const json_pointer&), this function does not throw - if the given key @a key was not found. + // skip this value if we already decided to skip the parent + // (https://github.com/nlohmann/json/issues/971#issuecomment-413678360) + if (!ref_stack.back()) + { + return {false, nullptr}; + } - @param[in] ptr a JSON pointer to the element to access - @param[in] default_value the value to return if @a ptr found no value + // we now only expect arrays and objects + JSON_ASSERT(ref_stack.back()->is_array() || ref_stack.back()->is_object()); - @tparam ValueType type compatible to JSON values, for instance `int` for - JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for - JSON arrays. Note the type of the expected value at @a key and the default - value @a default_value must be compatible. + // array + if (ref_stack.back()->is_array()) + { + ref_stack.back()->m_value.array->emplace_back(std::move(value)); + return {true, &(ref_stack.back()->m_value.array->back())}; + } - @return copy of the element at key @a key or @a default_value if @a key - is not found + // object + JSON_ASSERT(ref_stack.back()->is_object()); + // check if we should store an element for the current key + JSON_ASSERT(!key_keep_stack.empty()); + const bool store_element = key_keep_stack.back(); + key_keep_stack.pop_back(); - @throw std::domain_error if JSON is not an object; example: `"cannot use - value() with null"` + if (!store_element) + { + return {false, nullptr}; + } - @complexity Logarithmic in the size of the container. + JSON_ASSERT(object_element); + *object_element = std::move(value); + return {true, object_element}; + } - @liveexample{The example below shows how object elements can be queried - with a default value.,basic_json__value_ptr} + /// the parsed JSON value + BasicJsonType& root; + /// stack to model hierarchy of values + std::vector ref_stack {}; + /// stack to manage which values to keep + std::vector keep_stack {}; + /// stack to manage which object keys to keep + std::vector key_keep_stack {}; + /// helper to hold the reference for the next object element + BasicJsonType* object_element = nullptr; + /// whether a syntax error occurred + bool errored = false; + /// callback function + const parser_callback_t callback = nullptr; + /// whether to throw exceptions in case of errors + const bool allow_exceptions = true; + /// a discarded value for the callback + BasicJsonType discarded = BasicJsonType::value_t::discarded; +}; - @sa @ref operator[](const json_pointer&) for unchecked access by reference +template +class json_sax_acceptor +{ + public: + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; - @since version 2.0.2 - */ - template::value, int>::type = 0> - ValueType value(const json_pointer& ptr, ValueType default_value) const + bool null() { - // at only works for objects - if (is_object()) - { - // if pointer resolves a value, return it or use default value - JSON_TRY - { - return ptr.get_checked(this); - } - JSON_CATCH (std::out_of_range&) - { - return default_value; - } - } + return true; + } - JSON_THROW(std::domain_error("cannot use value() with " + type_name())); + bool boolean(bool /*unused*/) + { + return true; } - /*! - @brief overload for a default value of type const char* - @copydoc basic_json::value(const json_pointer&, ValueType) const - */ - string_t value(const json_pointer& ptr, const char* default_value) const + bool number_integer(number_integer_t /*unused*/) { - return value(ptr, string_t(default_value)); + return true; } - /*! - @brief access the first element + bool number_unsigned(number_unsigned_t /*unused*/) + { + return true; + } - Returns a reference to the first element in the container. For a JSON - container `c`, the expression `c.front()` is equivalent to `*c.begin()`. + bool number_float(number_float_t /*unused*/, const string_t& /*unused*/) + { + return true; + } - @return In case of a structured type (array or object), a reference to the - first element is returned. In case of number, string, or boolean values, a - reference to the value is returned. + bool string(string_t& /*unused*/) + { + return true; + } - @complexity Constant. + bool binary(binary_t& /*unused*/) + { + return true; + } - @pre The JSON value must not be `null` (would throw `std::out_of_range`) - or an empty array or object (undefined behavior, **guarded by - assertions**). - @post The JSON value remains unchanged. + bool start_object(std::size_t /*unused*/ = static_cast(-1)) + { + return true; + } - @throw std::out_of_range when called on `null` value + bool key(string_t& /*unused*/) + { + return true; + } - @liveexample{The following code shows an example for `front()`.,front} + bool end_object() + { + return true; + } - @sa @ref back() -- access the last element + bool start_array(std::size_t /*unused*/ = static_cast(-1)) + { + return true; + } - @since version 1.0.0 - */ - reference front() + bool end_array() { - return *begin(); + return true; } - /*! - @copydoc basic_json::front() - */ - const_reference front() const + bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, const detail::exception& /*unused*/) { - return *cbegin(); + return false; } +}; +} // namespace detail - /*! - @brief access the last element +} // namespace nlohmann - Returns a reference to the last element in the container. For a JSON - container `c`, the expression `c.back()` is equivalent to - @code {.cpp} - auto tmp = c.end(); - --tmp; - return *tmp; - @endcode +// #include - @return In case of a structured type (array or object), a reference to the - last element is returned. In case of number, string, or boolean values, a - reference to the value is returned. - @complexity Constant. +#include // array +#include // localeconv +#include // size_t +#include // snprintf +#include // strtof, strtod, strtold, strtoll, strtoull +#include // initializer_list +#include // char_traits, string +#include // move +#include // vector - @pre The JSON value must not be `null` (would throw `std::out_of_range`) - or an empty array or object (undefined behavior, **guarded by - assertions**). - @post The JSON value remains unchanged. +// #include - @throw std::out_of_range when called on `null` value. +// #include - @liveexample{The following code shows an example for `back()`.,back} +// #include - @sa @ref front() -- access the first element - @since version 1.0.0 - */ - reference back() +namespace nlohmann +{ +namespace detail +{ +/////////// +// lexer // +/////////// + +template +class lexer_base +{ + public: + /// token types for the parser + enum class token_type { - auto tmp = end(); - --tmp; - return *tmp; - } + uninitialized, ///< indicating the scanner is uninitialized + literal_true, ///< the `true` literal + literal_false, ///< the `false` literal + literal_null, ///< the `null` literal + value_string, ///< a string -- use get_string() for actual value + value_unsigned, ///< an unsigned integer -- use get_number_unsigned() for actual value + value_integer, ///< a signed integer -- use get_number_integer() for actual value + value_float, ///< an floating point number -- use get_number_float() for actual value + begin_array, ///< the character for array begin `[` + begin_object, ///< the character for object begin `{` + end_array, ///< the character for array end `]` + end_object, ///< the character for object end `}` + name_separator, ///< the name separator `:` + value_separator, ///< the value separator `,` + parse_error, ///< indicating a parse error + end_of_input, ///< indicating the end of the input buffer + literal_or_value ///< a literal or the begin of a value (only for diagnostics) + }; - /*! - @copydoc basic_json::back() - */ - const_reference back() const + /// return name of values of type token_type (only used for errors) + JSON_HEDLEY_RETURNS_NON_NULL + JSON_HEDLEY_CONST + static const char* token_type_name(const token_type t) noexcept { - auto tmp = cend(); - --tmp; - return *tmp; + switch (t) + { + case token_type::uninitialized: + return ""; + case token_type::literal_true: + return "true literal"; + case token_type::literal_false: + return "false literal"; + case token_type::literal_null: + return "null literal"; + case token_type::value_string: + return "string literal"; + case token_type::value_unsigned: + case token_type::value_integer: + case token_type::value_float: + return "number literal"; + case token_type::begin_array: + return "'['"; + case token_type::begin_object: + return "'{'"; + case token_type::end_array: + return "']'"; + case token_type::end_object: + return "'}'"; + case token_type::name_separator: + return "':'"; + case token_type::value_separator: + return "','"; + case token_type::parse_error: + return ""; + case token_type::end_of_input: + return "end of input"; + case token_type::literal_or_value: + return "'[', '{', or a literal"; + // LCOV_EXCL_START + default: // catch non-enum values + return "unknown token"; + // LCOV_EXCL_STOP + } } +}; +/*! +@brief lexical analysis +This class organizes the lexical analysis during JSON deserialization. +*/ +template +class lexer : public lexer_base +{ + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using char_type = typename InputAdapterType::char_type; + using char_int_type = typename std::char_traits::int_type; - /*! - @brief remove element given an iterator - - Removes the element specified by iterator @a pos. The iterator @a pos must - be valid and dereferenceable. Thus the `end()` iterator (which is valid, - but is not dereferenceable) cannot be used as a value for @a pos. - - If called on a primitive type other than `null`, the resulting JSON value - will be `null`. - - @param[in] pos iterator to the element to remove - @return Iterator following the last removed element. If the iterator @a - pos refers to the last element, the `end()` iterator is returned. - - @tparam IteratorType an @ref iterator or @ref const_iterator + public: + using token_type = typename lexer_base::token_type; - @post Invalidates iterators and references at or after the point of the - erase, including the `end()` iterator. + explicit lexer(InputAdapterType&& adapter, bool ignore_comments_ = false) noexcept + : ia(std::move(adapter)) + , ignore_comments(ignore_comments_) + , decimal_point_char(static_cast(get_decimal_point())) + {} - @throw std::domain_error if called on a `null` value; example: `"cannot - use erase() with null"` - @throw std::domain_error if called on an iterator which does not belong to - the current JSON value; example: `"iterator does not fit current value"` - @throw std::out_of_range if called on a primitive type with invalid - iterator (i.e., any iterator which is not `begin()`); example: `"iterator - out of range"` + // delete because of pointer members + lexer(const lexer&) = delete; + lexer(lexer&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + lexer& operator=(lexer&) = delete; + lexer& operator=(lexer&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + ~lexer() = default; - @complexity The complexity depends on the type: - - objects: amortized constant - - arrays: linear in distance between @a pos and the end of the container - - strings: linear in the length of the string - - other types: constant + private: + ///////////////////// + // locales + ///////////////////// - @liveexample{The example shows the result of `erase()` for different JSON - types.,erase__IteratorType} + /// return the locale-dependent decimal point + JSON_HEDLEY_PURE + static char get_decimal_point() noexcept + { + const auto* loc = localeconv(); + JSON_ASSERT(loc != nullptr); + return (loc->decimal_point == nullptr) ? '.' : *(loc->decimal_point); + } - @sa @ref erase(IteratorType, IteratorType) -- removes the elements in - the given range - @sa @ref erase(const typename object_t::key_type&) -- removes the element - from an object at the given key - @sa @ref erase(const size_type) -- removes the element from an array at - the given index + ///////////////////// + // scan functions + ///////////////////// - @since version 1.0.0 + /*! + @brief get codepoint from 4 hex characters following `\u` + For input "\u c1 c2 c3 c4" the codepoint is: + (c1 * 0x1000) + (c2 * 0x0100) + (c3 * 0x0010) + c4 + = (c1 << 12) + (c2 << 8) + (c3 << 4) + (c4 << 0) + Furthermore, the possible characters '0'..'9', 'A'..'F', and 'a'..'f' + must be converted to the integers 0x0..0x9, 0xA..0xF, 0xA..0xF, resp. The + conversion is done by subtracting the offset (0x30, 0x37, and 0x57) + between the ASCII value of the character and the desired integer value. + @return codepoint (0x0000..0xFFFF) or -1 in case of an error (e.g. EOF or + non-hex character) */ - template::value or - std::is_same::value, int>::type - = 0> - IteratorType erase(IteratorType pos) + int get_codepoint() { - // make sure iterator fits the current value - if (this != pos.m_object) - { - JSON_THROW(std::domain_error("iterator does not fit current value")); - } - - IteratorType result = end(); + // this function only makes sense after reading `\u` + JSON_ASSERT(current == 'u'); + int codepoint = 0; - switch (m_type) + const auto factors = { 12u, 8u, 4u, 0u }; + for (const auto factor : factors) { - case value_t::boolean: - case value_t::number_float: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::string: - { - if (not pos.m_it.primitive_iterator.is_begin()) - { - JSON_THROW(std::out_of_range("iterator out of range")); - } - - if (is_string()) - { - AllocatorType alloc; - alloc.destroy(m_value.string); - alloc.deallocate(m_value.string, 1); - m_value.string = nullptr; - } + get(); - m_type = value_t::null; - assert_invariant(); - break; + if (current >= '0' && current <= '9') + { + codepoint += static_cast((static_cast(current) - 0x30u) << factor); } - - case value_t::object: + else if (current >= 'A' && current <= 'F') { - result.m_it.object_iterator = m_value.object->erase(pos.m_it.object_iterator); - break; + codepoint += static_cast((static_cast(current) - 0x37u) << factor); } - - case value_t::array: + else if (current >= 'a' && current <= 'f') { - result.m_it.array_iterator = m_value.array->erase(pos.m_it.array_iterator); - break; + codepoint += static_cast((static_cast(current) - 0x57u) << factor); } - - default: + else { - JSON_THROW(std::domain_error("cannot use erase() with " + type_name())); + return -1; } } - return result; + JSON_ASSERT(0x0000 <= codepoint && codepoint <= 0xFFFF); + return codepoint; } /*! - @brief remove elements given an iterator range - - Removes the element specified by the range `[first; last)`. The iterator - @a first does not need to be dereferenceable if `first == last`: erasing - an empty range is a no-op. - - If called on a primitive type other than `null`, the resulting JSON value - will be `null`. - - @param[in] first iterator to the beginning of the range to remove - @param[in] last iterator past the end of the range to remove - @return Iterator following the last removed element. If the iterator @a - second refers to the last element, the `end()` iterator is returned. - - @tparam IteratorType an @ref iterator or @ref const_iterator - - @post Invalidates iterators and references at or after the point of the - erase, including the `end()` iterator. - - @throw std::domain_error if called on a `null` value; example: `"cannot - use erase() with null"` - @throw std::domain_error if called on iterators which does not belong to - the current JSON value; example: `"iterators do not fit current value"` - @throw std::out_of_range if called on a primitive type with invalid - iterators (i.e., if `first != begin()` and `last != end()`); example: - `"iterators out of range"` - - @complexity The complexity depends on the type: - - objects: `log(size()) + std::distance(first, last)` - - arrays: linear in the distance between @a first and @a last, plus linear - in the distance between @a last and end of the container - - strings: linear in the length of the string - - other types: constant + @brief check if the next byte(s) are inside a given range + Adds the current byte and, for each passed range, reads a new byte and + checks if it is inside the range. If a violation was detected, set up an + error message and return false. Otherwise, return true. + @param[in] ranges list of integers; interpreted as list of pairs of + inclusive lower and upper bound, respectively + @pre The passed list @a ranges must have 2, 4, or 6 elements; that is, + 1, 2, or 3 pairs. This precondition is enforced by an assertion. + @return true if and only if no range violation was detected + */ + bool next_byte_in_range(std::initializer_list ranges) + { + JSON_ASSERT(ranges.size() == 2 || ranges.size() == 4 || ranges.size() == 6); + add(current); - @liveexample{The example shows the result of `erase()` for different JSON - types.,erase__IteratorType_IteratorType} + for (auto range = ranges.begin(); range != ranges.end(); ++range) + { + get(); + if (JSON_HEDLEY_LIKELY(*range <= current && current <= *(++range))) + { + add(current); + } + else + { + error_message = "invalid string: ill-formed UTF-8 byte"; + return false; + } + } - @sa @ref erase(IteratorType) -- removes the element at a given position - @sa @ref erase(const typename object_t::key_type&) -- removes the element - from an object at the given key - @sa @ref erase(const size_type) -- removes the element from an array at - the given index + return true; + } - @since version 1.0.0 + /*! + @brief scan a string literal + This function scans a string according to Sect. 7 of RFC 8259. While + scanning, bytes are escaped and copied into buffer token_buffer. Then the + function returns successfully, token_buffer is *not* null-terminated (as it + may contain \0 bytes), and token_buffer.size() is the number of bytes in the + string. + @return token_type::value_string if string could be successfully scanned, + token_type::parse_error otherwise + @note In case of errors, variable error_message contains a textual + description. */ - template::value or - std::is_same::value, int>::type - = 0> - IteratorType erase(IteratorType first, IteratorType last) + token_type scan_string() { - // make sure iterator fits the current value - if (this != first.m_object or this != last.m_object) - { - JSON_THROW(std::domain_error("iterators do not fit current value")); - } + // reset token_buffer (ignore opening quote) + reset(); - IteratorType result = end(); + // we entered the function by reading an open quote + JSON_ASSERT(current == '\"'); - switch (m_type) + while (true) { - case value_t::boolean: - case value_t::number_float: - case value_t::number_integer: - case value_t::number_unsigned: - case value_t::string: + // get next character + switch (get()) { - if (not first.m_it.primitive_iterator.is_begin() or not last.m_it.primitive_iterator.is_end()) + // end of file while parsing string + case std::char_traits::eof(): { - JSON_THROW(std::out_of_range("iterators out of range")); + error_message = "invalid string: missing closing quote"; + return token_type::parse_error; } - if (is_string()) + // closing quote + case '\"': { - AllocatorType alloc; - alloc.destroy(m_value.string); - alloc.deallocate(m_value.string, 1); - m_value.string = nullptr; + return token_type::value_string; } - m_type = value_t::null; - assert_invariant(); - break; - } + // escapes + case '\\': + { + switch (get()) + { + // quotation mark + case '\"': + add('\"'); + break; + // reverse solidus + case '\\': + add('\\'); + break; + // solidus + case '/': + add('/'); + break; + // backspace + case 'b': + add('\b'); + break; + // form feed + case 'f': + add('\f'); + break; + // line feed + case 'n': + add('\n'); + break; + // carriage return + case 'r': + add('\r'); + break; + // tab + case 't': + add('\t'); + break; - case value_t::object: - { - result.m_it.object_iterator = m_value.object->erase(first.m_it.object_iterator, - last.m_it.object_iterator); - break; - } + // unicode escapes + case 'u': + { + const int codepoint1 = get_codepoint(); + int codepoint = codepoint1; // start with codepoint1 - case value_t::array: - { - result.m_it.array_iterator = m_value.array->erase(first.m_it.array_iterator, - last.m_it.array_iterator); - break; - } + if (JSON_HEDLEY_UNLIKELY(codepoint1 == -1)) + { + error_message = "invalid string: '\\u' must be followed by 4 hex digits"; + return token_type::parse_error; + } - default: - { - JSON_THROW(std::domain_error("cannot use erase() with " + type_name())); - } - } + // check if code point is a high surrogate + if (0xD800 <= codepoint1 && codepoint1 <= 0xDBFF) + { + // expect next \uxxxx entry + if (JSON_HEDLEY_LIKELY(get() == '\\' && get() == 'u')) + { + const int codepoint2 = get_codepoint(); + + if (JSON_HEDLEY_UNLIKELY(codepoint2 == -1)) + { + error_message = "invalid string: '\\u' must be followed by 4 hex digits"; + return token_type::parse_error; + } + + // check if codepoint2 is a low surrogate + if (JSON_HEDLEY_LIKELY(0xDC00 <= codepoint2 && codepoint2 <= 0xDFFF)) + { + // overwrite codepoint + codepoint = static_cast( + // high surrogate occupies the most significant 22 bits + (static_cast(codepoint1) << 10u) + // low surrogate occupies the least significant 15 bits + + static_cast(codepoint2) + // there is still the 0xD800, 0xDC00 and 0x10000 noise + // in the result, so we have to subtract with: + // (0xD800 << 10) + DC00 - 0x10000 = 0x35FDC00 + - 0x35FDC00u); + } + else + { + error_message = "invalid string: surrogate U+D800..U+DBFF must be followed by U+DC00..U+DFFF"; + return token_type::parse_error; + } + } + else + { + error_message = "invalid string: surrogate U+D800..U+DBFF must be followed by U+DC00..U+DFFF"; + return token_type::parse_error; + } + } + else + { + if (JSON_HEDLEY_UNLIKELY(0xDC00 <= codepoint1 && codepoint1 <= 0xDFFF)) + { + error_message = "invalid string: surrogate U+DC00..U+DFFF must follow U+D800..U+DBFF"; + return token_type::parse_error; + } + } - return result; - } + // result of the above calculation yields a proper codepoint + JSON_ASSERT(0x00 <= codepoint && codepoint <= 0x10FFFF); - /*! - @brief remove element from a JSON object given a key + // translate codepoint into bytes + if (codepoint < 0x80) + { + // 1-byte characters: 0xxxxxxx (ASCII) + add(static_cast(codepoint)); + } + else if (codepoint <= 0x7FF) + { + // 2-byte characters: 110xxxxx 10xxxxxx + add(static_cast(0xC0u | (static_cast(codepoint) >> 6u))); + add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); + } + else if (codepoint <= 0xFFFF) + { + // 3-byte characters: 1110xxxx 10xxxxxx 10xxxxxx + add(static_cast(0xE0u | (static_cast(codepoint) >> 12u))); + add(static_cast(0x80u | ((static_cast(codepoint) >> 6u) & 0x3Fu))); + add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); + } + else + { + // 4-byte characters: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + add(static_cast(0xF0u | (static_cast(codepoint) >> 18u))); + add(static_cast(0x80u | ((static_cast(codepoint) >> 12u) & 0x3Fu))); + add(static_cast(0x80u | ((static_cast(codepoint) >> 6u) & 0x3Fu))); + add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); + } - Removes elements from a JSON object with the key value @a key. + break; + } - @param[in] key value of the elements to remove + // other characters after escape + default: + error_message = "invalid string: forbidden character after backslash"; + return token_type::parse_error; + } - @return Number of elements removed. If @a ObjectType is the default - `std::map` type, the return value will always be `0` (@a key was not - found) or `1` (@a key was found). + break; + } - @post References and iterators to the erased elements are invalidated. - Other references and iterators are not affected. + // invalid control characters + case 0x00: + { + error_message = "invalid string: control character U+0000 (NUL) must be escaped to \\u0000"; + return token_type::parse_error; + } - @throw std::domain_error when called on a type other than JSON object; - example: `"cannot use erase() with null"` + case 0x01: + { + error_message = "invalid string: control character U+0001 (SOH) must be escaped to \\u0001"; + return token_type::parse_error; + } - @complexity `log(size()) + count(key)` + case 0x02: + { + error_message = "invalid string: control character U+0002 (STX) must be escaped to \\u0002"; + return token_type::parse_error; + } - @liveexample{The example shows the effect of `erase()`.,erase__key_type} + case 0x03: + { + error_message = "invalid string: control character U+0003 (ETX) must be escaped to \\u0003"; + return token_type::parse_error; + } - @sa @ref erase(IteratorType) -- removes the element at a given position - @sa @ref erase(IteratorType, IteratorType) -- removes the elements in - the given range - @sa @ref erase(const size_type) -- removes the element from an array at - the given index + case 0x04: + { + error_message = "invalid string: control character U+0004 (EOT) must be escaped to \\u0004"; + return token_type::parse_error; + } - @since version 1.0.0 - */ - size_type erase(const typename object_t::key_type& key) - { - // this erase only works for objects - if (is_object()) - { - return m_value.object->erase(key); - } + case 0x05: + { + error_message = "invalid string: control character U+0005 (ENQ) must be escaped to \\u0005"; + return token_type::parse_error; + } - JSON_THROW(std::domain_error("cannot use erase() with " + type_name())); - } + case 0x06: + { + error_message = "invalid string: control character U+0006 (ACK) must be escaped to \\u0006"; + return token_type::parse_error; + } - /*! - @brief remove element from a JSON array given an index + case 0x07: + { + error_message = "invalid string: control character U+0007 (BEL) must be escaped to \\u0007"; + return token_type::parse_error; + } - Removes element from a JSON array at the index @a idx. + case 0x08: + { + error_message = "invalid string: control character U+0008 (BS) must be escaped to \\u0008 or \\b"; + return token_type::parse_error; + } - @param[in] idx index of the element to remove + case 0x09: + { + error_message = "invalid string: control character U+0009 (HT) must be escaped to \\u0009 or \\t"; + return token_type::parse_error; + } - @throw std::domain_error when called on a type other than JSON array; - example: `"cannot use erase() with null"` - @throw std::out_of_range when `idx >= size()`; example: `"array index 17 - is out of range"` + case 0x0A: + { + error_message = "invalid string: control character U+000A (LF) must be escaped to \\u000A or \\n"; + return token_type::parse_error; + } - @complexity Linear in distance between @a idx and the end of the container. + case 0x0B: + { + error_message = "invalid string: control character U+000B (VT) must be escaped to \\u000B"; + return token_type::parse_error; + } - @liveexample{The example shows the effect of `erase()`.,erase__size_type} + case 0x0C: + { + error_message = "invalid string: control character U+000C (FF) must be escaped to \\u000C or \\f"; + return token_type::parse_error; + } - @sa @ref erase(IteratorType) -- removes the element at a given position - @sa @ref erase(IteratorType, IteratorType) -- removes the elements in - the given range - @sa @ref erase(const typename object_t::key_type&) -- removes the element - from an object at the given key + case 0x0D: + { + error_message = "invalid string: control character U+000D (CR) must be escaped to \\u000D or \\r"; + return token_type::parse_error; + } - @since version 1.0.0 - */ - void erase(const size_type idx) - { - // this erase only works for arrays - if (is_array()) - { - if (idx >= size()) - { - JSON_THROW(std::out_of_range("array index " + std::to_string(idx) + " is out of range")); - } + case 0x0E: + { + error_message = "invalid string: control character U+000E (SO) must be escaped to \\u000E"; + return token_type::parse_error; + } - m_value.array->erase(m_value.array->begin() + static_cast(idx)); - } - else - { - JSON_THROW(std::domain_error("cannot use erase() with " + type_name())); - } - } + case 0x0F: + { + error_message = "invalid string: control character U+000F (SI) must be escaped to \\u000F"; + return token_type::parse_error; + } - /// @} + case 0x10: + { + error_message = "invalid string: control character U+0010 (DLE) must be escaped to \\u0010"; + return token_type::parse_error; + } + case 0x11: + { + error_message = "invalid string: control character U+0011 (DC1) must be escaped to \\u0011"; + return token_type::parse_error; + } - //////////// - // lookup // - //////////// + case 0x12: + { + error_message = "invalid string: control character U+0012 (DC2) must be escaped to \\u0012"; + return token_type::parse_error; + } - /// @name lookup - /// @{ + case 0x13: + { + error_message = "invalid string: control character U+0013 (DC3) must be escaped to \\u0013"; + return token_type::parse_error; + } - /*! - @brief find an element in a JSON object + case 0x14: + { + error_message = "invalid string: control character U+0014 (DC4) must be escaped to \\u0014"; + return token_type::parse_error; + } - Finds an element in a JSON object with key equivalent to @a key. If the - element is not found or the JSON value is not an object, end() is - returned. + case 0x15: + { + error_message = "invalid string: control character U+0015 (NAK) must be escaped to \\u0015"; + return token_type::parse_error; + } - @note This method always returns @ref end() when executed on a JSON type - that is not an object. + case 0x16: + { + error_message = "invalid string: control character U+0016 (SYN) must be escaped to \\u0016"; + return token_type::parse_error; + } - @param[in] key key value of the element to search for + case 0x17: + { + error_message = "invalid string: control character U+0017 (ETB) must be escaped to \\u0017"; + return token_type::parse_error; + } - @return Iterator to an element with key equivalent to @a key. If no such - element is found or the JSON value is not an object, past-the-end (see - @ref end()) iterator is returned. + case 0x18: + { + error_message = "invalid string: control character U+0018 (CAN) must be escaped to \\u0018"; + return token_type::parse_error; + } - @complexity Logarithmic in the size of the JSON object. + case 0x19: + { + error_message = "invalid string: control character U+0019 (EM) must be escaped to \\u0019"; + return token_type::parse_error; + } - @liveexample{The example shows how `find()` is used.,find__key_type} + case 0x1A: + { + error_message = "invalid string: control character U+001A (SUB) must be escaped to \\u001A"; + return token_type::parse_error; + } - @since version 1.0.0 - */ - iterator find(typename object_t::key_type key) - { - auto result = end(); + case 0x1B: + { + error_message = "invalid string: control character U+001B (ESC) must be escaped to \\u001B"; + return token_type::parse_error; + } - if (is_object()) - { - result.m_it.object_iterator = m_value.object->find(key); - } + case 0x1C: + { + error_message = "invalid string: control character U+001C (FS) must be escaped to \\u001C"; + return token_type::parse_error; + } - return result; - } + case 0x1D: + { + error_message = "invalid string: control character U+001D (GS) must be escaped to \\u001D"; + return token_type::parse_error; + } - /*! - @brief find an element in a JSON object - @copydoc find(typename object_t::key_type) - */ - const_iterator find(typename object_t::key_type key) const - { - auto result = cend(); + case 0x1E: + { + error_message = "invalid string: control character U+001E (RS) must be escaped to \\u001E"; + return token_type::parse_error; + } - if (is_object()) - { - result.m_it.object_iterator = m_value.object->find(key); - } + case 0x1F: + { + error_message = "invalid string: control character U+001F (US) must be escaped to \\u001F"; + return token_type::parse_error; + } - return result; - } + // U+0020..U+007F (except U+0022 (quote) and U+005C (backspace)) + case 0x20: + case 0x21: + case 0x23: + case 0x24: + case 0x25: + case 0x26: + case 0x27: + case 0x28: + case 0x29: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: + case 0x30: + case 0x31: + case 0x32: + case 0x33: + case 0x34: + case 0x35: + case 0x36: + case 0x37: + case 0x38: + case 0x39: + case 0x3A: + case 0x3B: + case 0x3C: + case 0x3D: + case 0x3E: + case 0x3F: + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: + case 0x51: + case 0x52: + case 0x53: + case 0x54: + case 0x55: + case 0x56: + case 0x57: + case 0x58: + case 0x59: + case 0x5A: + case 0x5B: + case 0x5D: + case 0x5E: + case 0x5F: + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: + case 0x70: + case 0x71: + case 0x72: + case 0x73: + case 0x74: + case 0x75: + case 0x76: + case 0x77: + case 0x78: + case 0x79: + case 0x7A: + case 0x7B: + case 0x7C: + case 0x7D: + case 0x7E: + case 0x7F: + { + add(current); + break; + } - /*! - @brief returns the number of occurrences of a key in a JSON object + // U+0080..U+07FF: bytes C2..DF 80..BF + case 0xC2: + case 0xC3: + case 0xC4: + case 0xC5: + case 0xC6: + case 0xC7: + case 0xC8: + case 0xC9: + case 0xCA: + case 0xCB: + case 0xCC: + case 0xCD: + case 0xCE: + case 0xCF: + case 0xD0: + case 0xD1: + case 0xD2: + case 0xD3: + case 0xD4: + case 0xD5: + case 0xD6: + case 0xD7: + case 0xD8: + case 0xD9: + case 0xDA: + case 0xDB: + case 0xDC: + case 0xDD: + case 0xDE: + case 0xDF: + { + if (JSON_HEDLEY_UNLIKELY(!next_byte_in_range({0x80, 0xBF}))) + { + return token_type::parse_error; + } + break; + } - Returns the number of elements with key @a key. If ObjectType is the - default `std::map` type, the return value will always be `0` (@a key was - not found) or `1` (@a key was found). + // U+0800..U+0FFF: bytes E0 A0..BF 80..BF + case 0xE0: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0xA0, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } - @note This method always returns `0` when executed on a JSON type that is - not an object. + // U+1000..U+CFFF: bytes E1..EC 80..BF 80..BF + // U+E000..U+FFFF: bytes EE..EF 80..BF 80..BF + case 0xE1: + case 0xE2: + case 0xE3: + case 0xE4: + case 0xE5: + case 0xE6: + case 0xE7: + case 0xE8: + case 0xE9: + case 0xEA: + case 0xEB: + case 0xEC: + case 0xEE: + case 0xEF: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } - @param[in] key key value of the element to count + // U+D000..U+D7FF: bytes ED 80..9F 80..BF + case 0xED: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0x9F, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } - @return Number of elements with key @a key. If the JSON value is not an - object, the return value will be `0`. + // U+10000..U+3FFFF F0 90..BF 80..BF 80..BF + case 0xF0: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x90, 0xBF, 0x80, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } - @complexity Logarithmic in the size of the JSON object. + // U+40000..U+FFFFF F1..F3 80..BF 80..BF 80..BF + case 0xF1: + case 0xF2: + case 0xF3: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0xBF, 0x80, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } - @liveexample{The example shows how `count()` is used.,count} + // U+100000..U+10FFFF F4 80..8F 80..BF 80..BF + case 0xF4: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0x8F, 0x80, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } - @since version 1.0.0 - */ - size_type count(typename object_t::key_type key) const - { - // return 0 for all nonobject types - return is_object() ? m_value.object->count(key) : 0; + // remaining bytes (80..C1 and F5..FF) are ill-formed + default: + { + error_message = "invalid string: ill-formed UTF-8 byte"; + return token_type::parse_error; + } + } + } } - /// @} - - - /////////////// - // iterators // - /////////////// - - /// @name iterators - /// @{ - /*! - @brief returns an iterator to the first element + * @brief scan a comment + * @return whether comment could be scanned successfully + */ + bool scan_comment() + { + switch (get()) + { + // single-line comments skip input until a newline or EOF is read + case '/': + { + while (true) + { + switch (get()) + { + case '\n': + case '\r': + case std::char_traits::eof(): + case '\0': + return true; - Returns an iterator to the first element. + default: + break; + } + } + } - @image html range-begin-end.svg "Illustration from cppreference.com" + // multi-line comments skip input until */ is read + case '*': + { + while (true) + { + switch (get()) + { + case std::char_traits::eof(): + case '\0': + { + error_message = "invalid comment; missing closing '*/'"; + return false; + } - @return iterator to the first element + case '*': + { + switch (get()) + { + case '/': + return true; - @complexity Constant. + default: + { + unget(); + continue; + } + } + } - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is constant. + default: + continue; + } + } + } - @liveexample{The following code shows an example for `begin()`.,begin} + // unexpected character after reading '/' + default: + { + error_message = "invalid comment; expecting '/' or '*' after '/'"; + return false; + } + } + } - @sa @ref cbegin() -- returns a const iterator to the beginning - @sa @ref end() -- returns an iterator to the end - @sa @ref cend() -- returns a const iterator to the end + JSON_HEDLEY_NON_NULL(2) + static void strtof(float& f, const char* str, char** endptr) noexcept + { + f = std::strtof(str, endptr); + } - @since version 1.0.0 - */ - iterator begin() noexcept + JSON_HEDLEY_NON_NULL(2) + static void strtof(double& f, const char* str, char** endptr) noexcept { - iterator result(this); - result.set_begin(); - return result; + f = std::strtod(str, endptr); } - /*! - @copydoc basic_json::cbegin() - */ - const_iterator begin() const noexcept + JSON_HEDLEY_NON_NULL(2) + static void strtof(long double& f, const char* str, char** endptr) noexcept { - return cbegin(); + f = std::strtold(str, endptr); } /*! - @brief returns a const iterator to the first element + @brief scan a number literal + This function scans a string according to Sect. 6 of RFC 8259. + The function is realized with a deterministic finite state machine derived + from the grammar described in RFC 8259. Starting in state "init", the + input is read and used to determined the next state. Only state "done" + accepts the number. State "error" is a trap state to model errors. In the + table below, "anything" means any character but the ones listed before. + state | 0 | 1-9 | e E | + | - | . | anything + ---------|----------|----------|----------|---------|---------|----------|----------- + init | zero | any1 | [error] | [error] | minus | [error] | [error] + minus | zero | any1 | [error] | [error] | [error] | [error] | [error] + zero | done | done | exponent | done | done | decimal1 | done + any1 | any1 | any1 | exponent | done | done | decimal1 | done + decimal1 | decimal2 | decimal2 | [error] | [error] | [error] | [error] | [error] + decimal2 | decimal2 | decimal2 | exponent | done | done | done | done + exponent | any2 | any2 | [error] | sign | sign | [error] | [error] + sign | any2 | any2 | [error] | [error] | [error] | [error] | [error] + any2 | any2 | any2 | done | done | done | done | done + The state machine is realized with one label per state (prefixed with + "scan_number_") and `goto` statements between them. The state machine + contains cycles, but any cycle can be left when EOF is read. Therefore, + the function is guaranteed to terminate. + During scanning, the read bytes are stored in token_buffer. This string is + then converted to a signed integer, an unsigned integer, or a + floating-point number. + @return token_type::value_unsigned, token_type::value_integer, or + token_type::value_float if number could be successfully scanned, + token_type::parse_error otherwise + @note The scanner is independent of the current locale. Internally, the + locale's decimal point is used instead of `.` to work with the + locale-dependent converters. + */ + token_type scan_number() // lgtm [cpp/use-of-goto] + { + // reset token_buffer to store the number's bytes + reset(); - Returns a const iterator to the first element. + // the type of the parsed number; initially set to unsigned; will be + // changed if minus sign, decimal point or exponent is read + token_type number_type = token_type::value_unsigned; - @image html range-begin-end.svg "Illustration from cppreference.com" + // state (init): we just found out we need to scan a number + switch (current) + { + case '-': + { + add(current); + goto scan_number_minus; + } - @return const iterator to the first element + case '0': + { + add(current); + goto scan_number_zero; + } - @complexity Constant. + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any1; + } - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is constant. - - Has the semantics of `const_cast(*this).begin()`. + // all other characters are rejected outside scan_number() + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } - @liveexample{The following code shows an example for `cbegin()`.,cbegin} +scan_number_minus: + // state: we just parsed a leading minus sign + number_type = token_type::value_integer; + switch (get()) + { + case '0': + { + add(current); + goto scan_number_zero; + } - @sa @ref begin() -- returns an iterator to the beginning - @sa @ref end() -- returns an iterator to the end - @sa @ref cend() -- returns a const iterator to the end + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any1; + } - @since version 1.0.0 - */ - const_iterator cbegin() const noexcept - { - const_iterator result(this); - result.set_begin(); - return result; - } + default: + { + error_message = "invalid number; expected digit after '-'"; + return token_type::parse_error; + } + } - /*! - @brief returns an iterator to one past the last element +scan_number_zero: + // state: we just parse a zero (maybe with a leading minus sign) + switch (get()) + { + case '.': + { + add(decimal_point_char); + goto scan_number_decimal1; + } - Returns an iterator to one past the last element. + case 'e': + case 'E': + { + add(current); + goto scan_number_exponent; + } - @image html range-begin-end.svg "Illustration from cppreference.com" + default: + goto scan_number_done; + } - @return iterator one past the last element +scan_number_any1: + // state: we just parsed a number 0-9 (maybe with a leading minus sign) + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any1; + } - @complexity Constant. + case '.': + { + add(decimal_point_char); + goto scan_number_decimal1; + } - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is constant. + case 'e': + case 'E': + { + add(current); + goto scan_number_exponent; + } - @liveexample{The following code shows an example for `end()`.,end} + default: + goto scan_number_done; + } - @sa @ref cend() -- returns a const iterator to the end - @sa @ref begin() -- returns an iterator to the beginning - @sa @ref cbegin() -- returns a const iterator to the beginning +scan_number_decimal1: + // state: we just parsed a decimal point + number_type = token_type::value_float; + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_decimal2; + } - @since version 1.0.0 - */ - iterator end() noexcept - { - iterator result(this); - result.set_end(); - return result; - } + default: + { + error_message = "invalid number; expected digit after '.'"; + return token_type::parse_error; + } + } - /*! - @copydoc basic_json::cend() - */ - const_iterator end() const noexcept - { - return cend(); - } +scan_number_decimal2: + // we just parsed at least one number after a decimal point + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_decimal2; + } - /*! - @brief returns a const iterator to one past the last element + case 'e': + case 'E': + { + add(current); + goto scan_number_exponent; + } + + default: + goto scan_number_done; + } + +scan_number_exponent: + // we just parsed an exponent + number_type = token_type::value_float; + switch (get()) + { + case '+': + case '-': + { + add(current); + goto scan_number_sign; + } - Returns a const iterator to one past the last element. + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any2; + } - @image html range-begin-end.svg "Illustration from cppreference.com" + default: + { + error_message = + "invalid number; expected '+', '-', or digit after exponent"; + return token_type::parse_error; + } + } - @return const iterator one past the last element +scan_number_sign: + // we just parsed an exponent sign + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any2; + } - @complexity Constant. + default: + { + error_message = "invalid number; expected digit after exponent sign"; + return token_type::parse_error; + } + } - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is constant. - - Has the semantics of `const_cast(*this).end()`. +scan_number_any2: + // we just parsed a number after the exponent or exponent sign + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any2; + } - @liveexample{The following code shows an example for `cend()`.,cend} + default: + goto scan_number_done; + } - @sa @ref end() -- returns an iterator to the end - @sa @ref begin() -- returns an iterator to the beginning - @sa @ref cbegin() -- returns a const iterator to the beginning +scan_number_done: + // unget the character after the number (we only read it to know that + // we are done scanning a number) + unget(); - @since version 1.0.0 - */ - const_iterator cend() const noexcept - { - const_iterator result(this); - result.set_end(); - return result; - } + char* endptr = nullptr; // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + errno = 0; - /*! - @brief returns an iterator to the reverse-beginning + // try to parse integers first and fall back to floats + if (number_type == token_type::value_unsigned) + { + const auto x = std::strtoull(token_buffer.data(), &endptr, 10); - Returns an iterator to the reverse-beginning; that is, the last element. + // we checked the number format before + JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); - @image html range-rbegin-rend.svg "Illustration from cppreference.com" + if (errno == 0) + { + value_unsigned = static_cast(x); + if (value_unsigned == x) + { + return token_type::value_unsigned; + } + } + } + else if (number_type == token_type::value_integer) + { + const auto x = std::strtoll(token_buffer.data(), &endptr, 10); - @complexity Constant. + // we checked the number format before + JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); - @requirement This function helps `basic_json` satisfying the - [ReversibleContainer](http://en.cppreference.com/w/cpp/concept/ReversibleContainer) - requirements: - - The complexity is constant. - - Has the semantics of `reverse_iterator(end())`. + if (errno == 0) + { + value_integer = static_cast(x); + if (value_integer == x) + { + return token_type::value_integer; + } + } + } - @liveexample{The following code shows an example for `rbegin()`.,rbegin} + // this code is reached if we parse a floating-point number or if an + // integer conversion above failed + strtof(value_float, token_buffer.data(), &endptr); - @sa @ref crbegin() -- returns a const reverse iterator to the beginning - @sa @ref rend() -- returns a reverse iterator to the end - @sa @ref crend() -- returns a const reverse iterator to the end + // we checked the number format before + JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); - @since version 1.0.0 - */ - reverse_iterator rbegin() noexcept - { - return reverse_iterator(end()); + return token_type::value_float; } /*! - @copydoc basic_json::crbegin() + @param[in] literal_text the literal text to expect + @param[in] length the length of the passed literal text + @param[in] return_type the token type to return on success */ - const_reverse_iterator rbegin() const noexcept + JSON_HEDLEY_NON_NULL(2) + token_type scan_literal(const char_type* literal_text, const std::size_t length, + token_type return_type) { - return crbegin(); + JSON_ASSERT(std::char_traits::to_char_type(current) == literal_text[0]); + for (std::size_t i = 1; i < length; ++i) + { + if (JSON_HEDLEY_UNLIKELY(std::char_traits::to_char_type(get()) != literal_text[i])) + { + error_message = "invalid literal"; + return token_type::parse_error; + } + } + return return_type; } - /*! - @brief returns an iterator to the reverse-end - - Returns an iterator to the reverse-end; that is, one before the first - element. + ///////////////////// + // input management + ///////////////////// - @image html range-rbegin-rend.svg "Illustration from cppreference.com" + /// reset token_buffer; current character is beginning of token + void reset() noexcept + { + token_buffer.clear(); + token_string.clear(); + token_string.push_back(std::char_traits::to_char_type(current)); + } - @complexity Constant. + /* + @brief get next character from the input + This function provides the interface to the used input adapter. It does + not throw in case the input reached EOF, but returns a + `std::char_traits::eof()` in that case. Stores the scanned characters + for use in error messages. + @return character read from the input + */ + char_int_type get() + { + ++position.chars_read_total; + ++position.chars_read_current_line; - @requirement This function helps `basic_json` satisfying the - [ReversibleContainer](http://en.cppreference.com/w/cpp/concept/ReversibleContainer) - requirements: - - The complexity is constant. - - Has the semantics of `reverse_iterator(begin())`. + if (next_unget) + { + // just reset the next_unget variable and work with current + next_unget = false; + } + else + { + current = ia.get_character(); + } - @liveexample{The following code shows an example for `rend()`.,rend} + if (JSON_HEDLEY_LIKELY(current != std::char_traits::eof())) + { + token_string.push_back(std::char_traits::to_char_type(current)); + } - @sa @ref crend() -- returns a const reverse iterator to the end - @sa @ref rbegin() -- returns a reverse iterator to the beginning - @sa @ref crbegin() -- returns a const reverse iterator to the beginning + if (current == '\n') + { + ++position.lines_read; + position.chars_read_current_line = 0; + } - @since version 1.0.0 - */ - reverse_iterator rend() noexcept - { - return reverse_iterator(begin()); + return current; } /*! - @copydoc basic_json::crend() + @brief unget current character (read it again on next get) + We implement unget by setting variable next_unget to true. The input is not + changed - we just simulate ungetting by modifying chars_read_total, + chars_read_current_line, and token_string. The next call to get() will + behave as if the unget character is read again. */ - const_reverse_iterator rend() const noexcept + void unget() { - return crend(); - } + next_unget = true; - /*! - @brief returns a const reverse iterator to the last element - - Returns a const iterator to the reverse-beginning; that is, the last - element. + --position.chars_read_total; - @image html range-rbegin-rend.svg "Illustration from cppreference.com" - - @complexity Constant. + // in case we "unget" a newline, we have to also decrement the lines_read + if (position.chars_read_current_line == 0) + { + if (position.lines_read > 0) + { + --position.lines_read; + } + } + else + { + --position.chars_read_current_line; + } - @requirement This function helps `basic_json` satisfying the - [ReversibleContainer](http://en.cppreference.com/w/cpp/concept/ReversibleContainer) - requirements: - - The complexity is constant. - - Has the semantics of `const_cast(*this).rbegin()`. + if (JSON_HEDLEY_LIKELY(current != std::char_traits::eof())) + { + JSON_ASSERT(!token_string.empty()); + token_string.pop_back(); + } + } - @liveexample{The following code shows an example for `crbegin()`.,crbegin} + /// add a character to token_buffer + void add(char_int_type c) + { + token_buffer.push_back(static_cast(c)); + } - @sa @ref rbegin() -- returns a reverse iterator to the beginning - @sa @ref rend() -- returns a reverse iterator to the end - @sa @ref crend() -- returns a const reverse iterator to the end + public: + ///////////////////// + // value getters + ///////////////////// - @since version 1.0.0 - */ - const_reverse_iterator crbegin() const noexcept + /// return integer value + constexpr number_integer_t get_number_integer() const noexcept { - return const_reverse_iterator(cend()); + return value_integer; } - /*! - @brief returns a const reverse iterator to one before the first + /// return unsigned integer value + constexpr number_unsigned_t get_number_unsigned() const noexcept + { + return value_unsigned; + } - Returns a const reverse iterator to the reverse-end; that is, one before - the first element. + /// return floating-point value + constexpr number_float_t get_number_float() const noexcept + { + return value_float; + } - @image html range-rbegin-rend.svg "Illustration from cppreference.com" + /// return current string value (implicitly resets the token; useful only once) + string_t& get_string() + { + return token_buffer; + } - @complexity Constant. + ///////////////////// + // diagnostics + ///////////////////// - @requirement This function helps `basic_json` satisfying the - [ReversibleContainer](http://en.cppreference.com/w/cpp/concept/ReversibleContainer) - requirements: - - The complexity is constant. - - Has the semantics of `const_cast(*this).rend()`. + /// return position of last read token + constexpr position_t get_position() const noexcept + { + return position; + } - @liveexample{The following code shows an example for `crend()`.,crend} + /// return the last read token (for errors only). Will never contain EOF + /// (an arbitrary value that is not a valid char value, often -1), because + /// 255 may legitimately occur. May contain NUL, which should be escaped. + std::string get_token_string() const + { + // escape control characters + std::string result; + for (const auto c : token_string) + { + if (static_cast(c) <= '\x1F') + { + // escape control characters + std::array cs{{}}; + static_cast((std::snprintf)(cs.data(), cs.size(), "", static_cast(c))); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + result += cs.data(); + } + else + { + // add character as is + result.push_back(static_cast(c)); + } + } - @sa @ref rend() -- returns a reverse iterator to the end - @sa @ref rbegin() -- returns a reverse iterator to the beginning - @sa @ref crbegin() -- returns a const reverse iterator to the beginning + return result; + } - @since version 1.0.0 - */ - const_reverse_iterator crend() const noexcept + /// return syntax error message + JSON_HEDLEY_RETURNS_NON_NULL + constexpr const char* get_error_message() const noexcept { - return const_reverse_iterator(cbegin()); + return error_message; } - private: - // forward declaration - template class iteration_proxy; + ///////////////////// + // actual scanner + ///////////////////// - public: /*! - @brief wrapper to access iterator member functions in range-based for - - This function allows to access @ref iterator::key() and @ref - iterator::value() during range-based for loops. In these loops, a - reference to the JSON values is returned, so there is no access to the - underlying iterator. - - @note The name of this function is not yet final and may change in the - future. + @brief skip the UTF-8 byte order mark + @return true iff there is no BOM or the correct BOM has been skipped */ - static iteration_proxy iterator_wrapper(reference cont) + bool skip_bom() { - return iteration_proxy(cont); + if (get() == 0xEF) + { + // check if we completely parse the BOM + return get() == 0xBB && get() == 0xBF; + } + + // the first character is not the beginning of the BOM; unget it to + // process is later + unget(); + return true; } - /*! - @copydoc iterator_wrapper(reference) - */ - static iteration_proxy iterator_wrapper(const_reference cont) + void skip_whitespace() { - return iteration_proxy(cont); + do + { + get(); + } + while (current == ' ' || current == '\t' || current == '\n' || current == '\r'); } - /// @} - - - ////////////// - // capacity // - ////////////// - - /// @name capacity - /// @{ - - /*! - @brief checks whether the container is empty - - Checks if a JSON value has no elements. - - @return The return value depends on the different types and is - defined as follows: - Value type | return value - ----------- | ------------- - null | `true` - boolean | `false` - string | `false` - number | `false` - object | result of function `object_t::empty()` - array | result of function `array_t::empty()` - - @note This function does not return whether a string stored as JSON value - is empty - it returns whether the JSON container itself is empty which is - false in the case of a string. - - @complexity Constant, as long as @ref array_t and @ref object_t satisfy - the Container concept; that is, their `empty()` functions have constant - complexity. + token_type scan() + { + // initially, skip the BOM + if (position.chars_read_total == 0 && !skip_bom()) + { + error_message = "invalid BOM; must be 0xEF 0xBB 0xBF if given"; + return token_type::parse_error; + } - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is constant. - - Has the semantics of `begin() == end()`. + // read next character and ignore whitespace + skip_whitespace(); - @liveexample{The following code uses `empty()` to check if a JSON - object contains any elements.,empty} + // ignore comments + while (ignore_comments && current == '/') + { + if (!scan_comment()) + { + return token_type::parse_error; + } - @sa @ref size() -- returns the number of elements + // skip following whitespace + skip_whitespace(); + } - @since version 1.0.0 - */ - bool empty() const noexcept - { - switch (m_type) + switch (current) { - case value_t::null: + // structural characters + case '[': + return token_type::begin_array; + case ']': + return token_type::end_array; + case '{': + return token_type::begin_object; + case '}': + return token_type::end_object; + case ':': + return token_type::name_separator; + case ',': + return token_type::value_separator; + + // literals + case 't': { - // null values are empty - return true; + std::array true_literal = {{static_cast('t'), static_cast('r'), static_cast('u'), static_cast('e')}}; + return scan_literal(true_literal.data(), true_literal.size(), token_type::literal_true); } - - case value_t::array: + case 'f': { - // delegate call to array_t::empty() - return m_value.array->empty(); + std::array false_literal = {{static_cast('f'), static_cast('a'), static_cast('l'), static_cast('s'), static_cast('e')}}; + return scan_literal(false_literal.data(), false_literal.size(), token_type::literal_false); } - - case value_t::object: + case 'n': { - // delegate call to object_t::empty() - return m_value.object->empty(); + std::array null_literal = {{static_cast('n'), static_cast('u'), static_cast('l'), static_cast('l')}}; + return scan_literal(null_literal.data(), null_literal.size(), token_type::literal_null); } + // string + case '\"': + return scan_string(); + + // number + case '-': + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + return scan_number(); + + // end of input (the null byte is needed when parsing from + // string literals) + case '\0': + case std::char_traits::eof(): + return token_type::end_of_input; + + // error default: - { - // all other types are nonempty - return false; - } + error_message = "invalid literal"; + return token_type::parse_error; } } - /*! - @brief returns the number of elements + private: + /// input adapter + InputAdapterType ia; - Returns the number of elements in a JSON value. + /// whether comments should be ignored (true) or signaled as errors (false) + const bool ignore_comments = false; - @return The return value depends on the different types and is - defined as follows: - Value type | return value - ----------- | ------------- - null | `0` - boolean | `1` - string | `1` - number | `1` - object | result of function object_t::size() - array | result of function array_t::size() + /// the current character + char_int_type current = std::char_traits::eof(); - @note This function does not return the length of a string stored as JSON - value - it returns the number of elements in the JSON value which is 1 in - the case of a string. + /// whether the next get() call should just return current + bool next_unget = false; - @complexity Constant, as long as @ref array_t and @ref object_t satisfy - the Container concept; that is, their size() functions have constant - complexity. + /// the start position of the current token + position_t position {}; - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is constant. - - Has the semantics of `std::distance(begin(), end())`. + /// raw input token string (for error messages) + std::vector token_string {}; - @liveexample{The following code calls `size()` on the different value - types.,size} + /// buffer for variable-length tokens (numbers, strings) + string_t token_buffer {}; - @sa @ref empty() -- checks whether the container is empty - @sa @ref max_size() -- returns the maximal number of elements + /// a description of occurred lexer errors + const char* error_message = ""; - @since version 1.0.0 - */ - size_type size() const noexcept - { - switch (m_type) - { - case value_t::null: - { - // null values are empty - return 0; - } + // number values + number_integer_t value_integer = 0; + number_unsigned_t value_unsigned = 0; + number_float_t value_float = 0; - case value_t::array: - { - // delegate call to array_t::size() - return m_value.array->size(); - } + /// the decimal point + const char_int_type decimal_point_char = '.'; +}; +} // namespace detail +} // namespace nlohmann - case value_t::object: - { - // delegate call to object_t::size() - return m_value.object->size(); - } +// #include - default: - { - // all other types have size 1 - return 1; - } - } - } +// #include - /*! - @brief returns the maximum possible number of elements - Returns the maximum number of elements a JSON value is able to hold due to - system or library implementation limitations, i.e. `std::distance(begin(), - end())` for the JSON value. +#include // size_t +#include // declval +#include // string - @return The return value depends on the different types and is - defined as follows: - Value type | return value - ----------- | ------------- - null | `0` (same as `size()`) - boolean | `1` (same as `size()`) - string | `1` (same as `size()`) - number | `1` (same as `size()`) - object | result of function `object_t::max_size()` - array | result of function `array_t::max_size()` +// #include - @complexity Constant, as long as @ref array_t and @ref object_t satisfy - the Container concept; that is, their `max_size()` functions have constant - complexity. +// #include - @requirement This function helps `basic_json` satisfying the - [Container](http://en.cppreference.com/w/cpp/concept/Container) - requirements: - - The complexity is constant. - - Has the semantics of returning `b.size()` where `b` is the largest - possible JSON value. - @liveexample{The following code calls `max_size()` on the different value - types. Note the output is implementation specific.,max_size} +namespace nlohmann +{ +namespace detail +{ +template +using null_function_t = decltype(std::declval().null()); - @sa @ref size() -- returns the number of elements +template +using boolean_function_t = + decltype(std::declval().boolean(std::declval())); - @since version 1.0.0 - */ - size_type max_size() const noexcept - { - switch (m_type) - { - case value_t::array: - { - // delegate call to array_t::max_size() - return m_value.array->max_size(); - } +template +using number_integer_function_t = + decltype(std::declval().number_integer(std::declval())); - case value_t::object: - { - // delegate call to object_t::max_size() - return m_value.object->max_size(); - } +template +using number_unsigned_function_t = + decltype(std::declval().number_unsigned(std::declval())); - default: - { - // all other types have max_size() == size() - return size(); - } - } - } +template +using number_float_function_t = decltype(std::declval().number_float( + std::declval(), std::declval())); - /// @} +template +using string_function_t = + decltype(std::declval().string(std::declval())); +template +using binary_function_t = + decltype(std::declval().binary(std::declval())); - /////////////// - // modifiers // - /////////////// +template +using start_object_function_t = + decltype(std::declval().start_object(std::declval())); - /// @name modifiers - /// @{ +template +using key_function_t = + decltype(std::declval().key(std::declval())); - /*! - @brief clears the contents +template +using end_object_function_t = decltype(std::declval().end_object()); + +template +using start_array_function_t = + decltype(std::declval().start_array(std::declval())); - Clears the content of a JSON value and resets it to the default value as - if @ref basic_json(value_t) would have been called: +template +using end_array_function_t = decltype(std::declval().end_array()); - Value type | initial value - ----------- | ------------- - null | `null` - boolean | `false` - string | `""` - number | `0` - object | `{}` - array | `[]` +template +using parse_error_function_t = decltype(std::declval().parse_error( + std::declval(), std::declval(), + std::declval())); - @complexity Linear in the size of the JSON value. +template +struct is_sax +{ + private: + static_assert(is_basic_json::value, + "BasicJsonType must be of type basic_json<...>"); - @liveexample{The example below shows the effect of `clear()` to different - JSON types.,clear} + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using exception_t = typename BasicJsonType::exception; - @since version 1.0.0 + public: + static constexpr bool value = + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value; +}; + +template +struct is_sax_static_asserts +{ + private: + static_assert(is_basic_json::value, + "BasicJsonType must be of type basic_json<...>"); + + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using exception_t = typename BasicJsonType::exception; + + public: + static_assert(is_detected_exact::value, + "Missing/invalid function: bool null()"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool boolean(bool)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool boolean(bool)"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool number_integer(number_integer_t)"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool number_unsigned(number_unsigned_t)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool number_float(number_float_t, const string_t&)"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool string(string_t&)"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool binary(binary_t&)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool start_object(std::size_t)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool key(string_t&)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool end_object()"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool start_array(std::size_t)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool end_array()"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool parse_error(std::size_t, const " + "std::string&, const exception&)"); +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ + +/// how to treat CBOR tags +enum class cbor_tag_handler_t +{ + error, ///< throw a parse_error exception in case of a tag + ignore, ///< ignore tags + store ///< store tags as binary type +}; + +/*! +@brief determine system byte order +@return true if and only if system's byte order is little endian +@note from https://stackoverflow.com/a/1001328/266378 +*/ +static inline bool little_endianness(int num = 1) noexcept +{ + return *reinterpret_cast(&num) == 1; +} + + +/////////////////// +// binary reader // +/////////////////// + +/*! +@brief deserialization of CBOR, MessagePack, and UBJSON values +*/ +template> +class binary_reader +{ + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using json_sax_t = SAX; + using char_type = typename InputAdapterType::char_type; + using char_int_type = typename std::char_traits::int_type; + + public: + /*! + @brief create a binary reader + @param[in] adapter input adapter to read from */ - void clear() noexcept + explicit binary_reader(InputAdapterType&& adapter) noexcept : ia(std::move(adapter)) { - switch (m_type) + (void)detail::is_sax_static_asserts {}; + } + + // make class move-only + binary_reader(const binary_reader&) = delete; + binary_reader(binary_reader&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + binary_reader& operator=(const binary_reader&) = delete; + binary_reader& operator=(binary_reader&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + ~binary_reader() = default; + + /*! + @param[in] format the binary format to parse + @param[in] sax_ a SAX event processor + @param[in] strict whether to expect the input to be consumed completed + @param[in] tag_handler how to treat CBOR tags + @return whether parsing was successful + */ + JSON_HEDLEY_NON_NULL(3) + bool sax_parse(const input_format_t format, + json_sax_t* sax_, + const bool strict = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + sax = sax_; + bool result = false; + + switch (format) { - case value_t::number_integer: - { - m_value.number_integer = 0; + case input_format_t::bson: + result = parse_bson_internal(); break; - } - case value_t::number_unsigned: - { - m_value.number_unsigned = 0; + case input_format_t::cbor: + result = parse_cbor_internal(true, tag_handler); break; - } - case value_t::number_float: - { - m_value.number_float = 0.0; + case input_format_t::msgpack: + result = parse_msgpack_internal(); break; - } - case value_t::boolean: - { - m_value.boolean = false; + case input_format_t::ubjson: + result = parse_ubjson_internal(); break; - } - case value_t::string: - { - m_value.string->clear(); - break; - } + case input_format_t::json: // LCOV_EXCL_LINE + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } - case value_t::array: + // strict mode: next byte must be EOF + if (result && strict) + { + if (format == input_format_t::ubjson) { - m_value.array->clear(); - break; + get_ignore_noop(); } - - case value_t::object: + else { - m_value.object->clear(); - break; + get(); } - default: + if (JSON_HEDLEY_UNLIKELY(current != std::char_traits::eof())) { - break; + return sax->parse_error(chars_read, get_token_string(), + parse_error::create(110, chars_read, exception_message(format, "expected end of input; last byte: 0x" + get_token_string(), "value"), BasicJsonType())); } } - } - - /*! - @brief add an object to an array - Appends the given element @a val to the end of the JSON value. If the - function is called on a JSON null value, an empty array is created before - appending @a val. - - @param[in] val the value to add to the JSON array - - @throw std::domain_error when called on a type other than JSON array or - null; example: `"cannot use push_back() with number"` - - @complexity Amortized constant. + return result; + } - @liveexample{The example shows how `push_back()` and `+=` can be used to - add elements to a JSON array. Note how the `null` value was silently - converted to a JSON array.,push_back} + private: + ////////// + // BSON // + ////////// - @since version 1.0.0 + /*! + @brief Reads in a BSON-object and passes it to the SAX-parser. + @return whether a valid BSON-value was passed to the SAX parser */ - void push_back(basic_json&& val) + bool parse_bson_internal() { - // push_back only works for null objects or arrays - if (not(is_null() or is_array())) + std::int32_t document_size{}; + get_number(input_format_t::bson, document_size); + + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(static_cast(-1)))) { - JSON_THROW(std::domain_error("cannot use push_back() with " + type_name())); + return false; } - // transform null object into an array - if (is_null()) + if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_list(/*is_array*/false))) { - m_type = value_t::array; - m_value = value_t::array; - assert_invariant(); + return false; } - // add element to array (move semantics) - m_value.array->push_back(std::move(val)); - // invalidate object - val.m_type = value_t::null; + return sax->end_object(); } /*! - @brief add an object to an array - @copydoc push_back(basic_json&&) + @brief Parses a C-style string from the BSON input. + @param[in,out] result A reference to the string variable where the read + string is to be stored. + @return `true` if the \x00-byte indicating the end of the string was + encountered before the EOF; false` indicates an unexpected EOF. */ - reference operator+=(basic_json&& val) + bool get_bson_cstr(string_t& result) { - push_back(std::move(val)); - return *this; + auto out = std::back_inserter(result); + while (true) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::bson, "cstring"))) + { + return false; + } + if (current == 0x00) + { + return true; + } + *out++ = static_cast(current); + } } /*! - @brief add an object to an array - @copydoc push_back(basic_json&&) + @brief Parses a zero-terminated string of length @a len from the BSON + input. + @param[in] len The length (including the zero-byte at the end) of the + string to be read. + @param[in,out] result A reference to the string variable where the read + string is to be stored. + @tparam NumberType The type of the length @a len + @pre len >= 1 + @return `true` if the string was successfully parsed */ - void push_back(const basic_json& val) + template + bool get_bson_string(const NumberType len, string_t& result) { - // push_back only works for null objects or arrays - if (not(is_null() or is_array())) + if (JSON_HEDLEY_UNLIKELY(len < 1)) { - JSON_THROW(std::domain_error("cannot use push_back() with " + type_name())); + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "string length must be at least 1, is " + std::to_string(len), "string"), BasicJsonType())); } - // transform null object into an array - if (is_null()) + return get_string(input_format_t::bson, len - static_cast(1), result) && get() != std::char_traits::eof(); + } + + /*! + @brief Parses a byte array input of length @a len from the BSON input. + @param[in] len The length of the byte array to be read. + @param[in,out] result A reference to the binary variable where the read + array is to be stored. + @tparam NumberType The type of the length @a len + @pre len >= 0 + @return `true` if the byte array was successfully parsed + */ + template + bool get_bson_binary(const NumberType len, binary_t& result) + { + if (JSON_HEDLEY_UNLIKELY(len < 0)) { - m_type = value_t::array; - m_value = value_t::array; - assert_invariant(); + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "byte array length cannot be negative, is " + std::to_string(len), "binary"), BasicJsonType())); } - // add element to array - m_value.array->push_back(val); + // All BSON binary values have a subtype + std::uint8_t subtype{}; + get_number(input_format_t::bson, subtype); + result.set_subtype(subtype); + + return get_binary(input_format_t::bson, len, result); } /*! - @brief add an object to an array - @copydoc push_back(basic_json&&) + @brief Read a BSON document element of the given @a element_type. + @param[in] element_type The BSON element type, c.f. http://bsonspec.org/spec.html + @param[in] element_type_parse_position The position in the input stream, + where the `element_type` was read. + @warning Not all BSON element types are supported yet. An unsupported + @a element_type will give rise to a parse_error.114: + Unsupported BSON record type 0x... + @return whether a valid BSON-object/array was passed to the SAX parser */ - reference operator+=(const basic_json& val) + bool parse_bson_element_internal(const char_int_type element_type, + const std::size_t element_type_parse_position) { - push_back(val); - return *this; - } + switch (element_type) + { + case 0x01: // double + { + double number{}; + return get_number(input_format_t::bson, number) && sax->number_float(static_cast(number), ""); + } - /*! - @brief add an object to an object + case 0x02: // string + { + std::int32_t len{}; + string_t value; + return get_number(input_format_t::bson, len) && get_bson_string(len, value) && sax->string(value); + } - Inserts the given element @a val to the JSON object. If the function is - called on a JSON null value, an empty object is created before inserting - @a val. + case 0x03: // object + { + return parse_bson_internal(); + } - @param[in] val the value to add to the JSON object + case 0x04: // array + { + return parse_bson_array(); + } - @throw std::domain_error when called on a type other than JSON object or - null; example: `"cannot use push_back() with number"` + case 0x05: // binary + { + std::int32_t len{}; + binary_t value; + return get_number(input_format_t::bson, len) && get_bson_binary(len, value) && sax->binary(value); + } - @complexity Logarithmic in the size of the container, O(log(`size()`)). + case 0x08: // boolean + { + return sax->boolean(get() != 0); + } - @liveexample{The example shows how `push_back()` and `+=` can be used to - add elements to a JSON object. Note how the `null` value was silently - converted to a JSON object.,push_back__object_t__value} + case 0x0A: // null + { + return sax->null(); + } - @since version 1.0.0 - */ - void push_back(const typename object_t::value_type& val) - { - // push_back only works for null objects or objects - if (not(is_null() or is_object())) - { - JSON_THROW(std::domain_error("cannot use push_back() with " + type_name())); - } + case 0x10: // int32 + { + std::int32_t value{}; + return get_number(input_format_t::bson, value) && sax->number_integer(value); + } - // transform null object into an object - if (is_null()) - { - m_type = value_t::object; - m_value = value_t::object; - assert_invariant(); - } + case 0x12: // int64 + { + std::int64_t value{}; + return get_number(input_format_t::bson, value) && sax->number_integer(value); + } - // add element to array - m_value.object->insert(val); + default: // anything else not supported (yet) + { + std::array cr{{}}; + static_cast((std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast(element_type))); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + return sax->parse_error(element_type_parse_position, std::string(cr.data()), parse_error::create(114, element_type_parse_position, "Unsupported BSON record type 0x" + std::string(cr.data()), BasicJsonType())); + } + } } /*! - @brief add an object to an object - @copydoc push_back(const typename object_t::value_type&) + @brief Read a BSON element list (as specified in the BSON-spec) + The same binary layout is used for objects and arrays, hence it must be + indicated with the argument @a is_array which one is expected + (true --> array, false --> object). + @param[in] is_array Determines if the element list being read is to be + treated as an object (@a is_array == false), or as an + array (@a is_array == true). + @return whether a valid BSON-object/array was passed to the SAX parser */ - reference operator+=(const typename object_t::value_type& val) + bool parse_bson_element_list(const bool is_array) { - push_back(val); - return *this; - } + string_t key; - /*! - @brief add an object to an object - - This function allows to use `push_back` with an initializer list. In case - - 1. the current value is an object, - 2. the initializer list @a init contains only two elements, and - 3. the first element of @a init is a string, - - @a init is converted into an object element and added using - @ref push_back(const typename object_t::value_type&). Otherwise, @a init - is converted to a JSON value and added using @ref push_back(basic_json&&). + while (auto element_type = get()) + { + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::bson, "element list"))) + { + return false; + } - @param init an initializer list + const std::size_t element_type_parse_position = chars_read; + if (JSON_HEDLEY_UNLIKELY(!get_bson_cstr(key))) + { + return false; + } - @complexity Linear in the size of the initializer list @a init. + if (!is_array && !sax->key(key)) + { + return false; + } - @note This function is required to resolve an ambiguous overload error, - because pairs like `{"key", "value"}` can be both interpreted as - `object_t::value_type` or `std::initializer_list`, see - https://github.com/nlohmann/json/issues/235 for more information. + if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_internal(element_type, element_type_parse_position))) + { + return false; + } - @liveexample{The example shows how initializer lists are treated as - objects when possible.,push_back__initializer_list} - */ - void push_back(std::initializer_list init) - { - if (is_object() and init.size() == 2 and init.begin()->is_string()) - { - const string_t key = *init.begin(); - push_back(typename object_t::value_type(key, *(init.begin() + 1))); - } - else - { - push_back(basic_json(init)); + // get_bson_cstr only appends + key.clear(); } - } - /*! - @brief add an object to an object - @copydoc push_back(std::initializer_list) - */ - reference operator+=(std::initializer_list init) - { - push_back(init); - return *this; + return true; } /*! - @brief add an object to an array - - Creates a JSON value from the passed parameters @a args to the end of the - JSON value. If the function is called on a JSON null value, an empty array - is created before appending the value created from @a args. - - @param[in] args arguments to forward to a constructor of @ref basic_json - @tparam Args compatible types to create a @ref basic_json object - - @throw std::domain_error when called on a type other than JSON array or - null; example: `"cannot use emplace_back() with number"` - - @complexity Amortized constant. - - @liveexample{The example shows how `push_back()` can be used to add - elements to a JSON array. Note how the `null` value was silently converted - to a JSON array.,emplace_back} - - @since version 2.0.8 + @brief Reads an array from the BSON input and passes it to the SAX-parser. + @return whether a valid BSON-array was passed to the SAX parser */ - template - void emplace_back(Args&& ... args) + bool parse_bson_array() { - // emplace_back only works for null objects or arrays - if (not(is_null() or is_array())) + std::int32_t document_size{}; + get_number(input_format_t::bson, document_size); + + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(static_cast(-1)))) { - JSON_THROW(std::domain_error("cannot use emplace_back() with " + type_name())); + return false; } - // transform null object into an array - if (is_null()) + if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_list(/*is_array*/true))) { - m_type = value_t::array; - m_value = value_t::array; - assert_invariant(); + return false; } - // add element to array (perfect forwarding) - m_value.array->emplace_back(std::forward(args)...); + return sax->end_array(); } - /*! - @brief add an object to an object if key does not exist - - Inserts a new element into a JSON object constructed in-place with the - given @a args if there is no element with the key in the container. If the - function is called on a JSON null value, an empty object is created before - appending the value created from @a args. - - @param[in] args arguments to forward to a constructor of @ref basic_json - @tparam Args compatible types to create a @ref basic_json object - - @return a pair consisting of an iterator to the inserted element, or the - already-existing element if no insertion happened, and a bool - denoting whether the insertion took place. + ////////// + // CBOR // + ////////// - @throw std::domain_error when called on a type other than JSON object or - null; example: `"cannot use emplace() with number"` - - @complexity Logarithmic in the size of the container, O(log(`size()`)). - - @liveexample{The example shows how `emplace()` can be used to add elements - to a JSON object. Note how the `null` value was silently converted to a - JSON object. Further note how no value is added if there was already one - value stored with the same key.,emplace} - - @since version 2.0.8 + /*! + @param[in] get_char whether a new character should be retrieved from the + input (true) or whether the last read character should + be considered instead (false) + @param[in] tag_handler how CBOR tags should be treated + @return whether a valid CBOR value was passed to the SAX parser */ - template - std::pair emplace(Args&& ... args) + bool parse_cbor_internal(const bool get_char, + const cbor_tag_handler_t tag_handler) { - // emplace only works for null objects or arrays - if (not(is_null() or is_object())) - { - JSON_THROW(std::domain_error("cannot use emplace() with " + type_name())); - } - - // transform null object into an object - if (is_null()) + switch (get_char ? get() : current) { - m_type = value_t::object; - m_value = value_t::object; - assert_invariant(); - } + // EOF + case std::char_traits::eof(): + return unexpect_eof(input_format_t::cbor, "value"); - // add element to array (perfect forwarding) - auto res = m_value.object->emplace(std::forward(args)...); - // create result iterator and set iterator to the result of emplace - auto it = begin(); - it.m_it.object_iterator = res.first; + // Integer 0x00..0x17 (0..23) + case 0x00: + case 0x01: + case 0x02: + case 0x03: + case 0x04: + case 0x05: + case 0x06: + case 0x07: + case 0x08: + case 0x09: + case 0x0A: + case 0x0B: + case 0x0C: + case 0x0D: + case 0x0E: + case 0x0F: + case 0x10: + case 0x11: + case 0x12: + case 0x13: + case 0x14: + case 0x15: + case 0x16: + case 0x17: + return sax->number_unsigned(static_cast(current)); - // return pair of iterator and boolean - return {it, res.second}; - } + case 0x18: // Unsigned integer (one-byte uint8_t follows) + { + std::uint8_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); + } - /*! - @brief inserts element + case 0x19: // Unsigned integer (two-byte uint16_t follows) + { + std::uint16_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); + } - Inserts element @a val before iterator @a pos. + case 0x1A: // Unsigned integer (four-byte uint32_t follows) + { + std::uint32_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); + } - @param[in] pos iterator before which the content will be inserted; may be - the end() iterator - @param[in] val element to insert - @return iterator pointing to the inserted @a val. + case 0x1B: // Unsigned integer (eight-byte uint64_t follows) + { + std::uint64_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); + } - @throw std::domain_error if called on JSON values other than arrays; - example: `"cannot use insert() with string"` - @throw std::domain_error if @a pos is not an iterator of *this; example: - `"iterator does not fit current value"` + // Negative integer -1-0x00..-1-0x17 (-1..-24) + case 0x20: + case 0x21: + case 0x22: + case 0x23: + case 0x24: + case 0x25: + case 0x26: + case 0x27: + case 0x28: + case 0x29: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: + case 0x30: + case 0x31: + case 0x32: + case 0x33: + case 0x34: + case 0x35: + case 0x36: + case 0x37: + return sax->number_integer(static_cast(0x20 - 1 - current)); - @complexity Constant plus linear in the distance between @a pos and end of - the container. + case 0x38: // Negative integer (one-byte uint8_t follows) + { + std::uint8_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); + } - @liveexample{The example shows how `insert()` is used.,insert} + case 0x39: // Negative integer -1-n (two-byte uint16_t follows) + { + std::uint16_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); + } - @since version 1.0.0 - */ - iterator insert(const_iterator pos, const basic_json& val) - { - // insert only works for arrays - if (is_array()) - { - // check if iterator pos fits to this JSON value - if (pos.m_object != this) + case 0x3A: // Negative integer -1-n (four-byte uint32_t follows) { - JSON_THROW(std::domain_error("iterator does not fit current value")); + std::uint32_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); } - // insert to array and return iterator - iterator result(this); - result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val); - return result; - } + case 0x3B: // Negative integer -1-n (eight-byte uint64_t follows) + { + std::uint64_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) + - static_cast(number)); + } - JSON_THROW(std::domain_error("cannot use insert() with " + type_name())); - } + // Binary data (0x00..0x17 bytes follow) + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: + case 0x51: + case 0x52: + case 0x53: + case 0x54: + case 0x55: + case 0x56: + case 0x57: + case 0x58: // Binary data (one-byte uint8_t for n follows) + case 0x59: // Binary data (two-byte uint16_t for n follow) + case 0x5A: // Binary data (four-byte uint32_t for n follow) + case 0x5B: // Binary data (eight-byte uint64_t for n follow) + case 0x5F: // Binary data (indefinite length) + { + binary_t b; + return get_cbor_binary(b) && sax->binary(b); + } - /*! - @brief inserts element - @copydoc insert(const_iterator, const basic_json&) - */ - iterator insert(const_iterator pos, basic_json&& val) - { - return insert(pos, val); - } + // UTF-8 string (0x00..0x17 bytes follow) + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: + case 0x70: + case 0x71: + case 0x72: + case 0x73: + case 0x74: + case 0x75: + case 0x76: + case 0x77: + case 0x78: // UTF-8 string (one-byte uint8_t for n follows) + case 0x79: // UTF-8 string (two-byte uint16_t for n follow) + case 0x7A: // UTF-8 string (four-byte uint32_t for n follow) + case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow) + case 0x7F: // UTF-8 string (indefinite length) + { + string_t s; + return get_cbor_string(s) && sax->string(s); + } - /*! - @brief inserts elements + // array (0x00..0x17 data items follow) + case 0x80: + case 0x81: + case 0x82: + case 0x83: + case 0x84: + case 0x85: + case 0x86: + case 0x87: + case 0x88: + case 0x89: + case 0x8A: + case 0x8B: + case 0x8C: + case 0x8D: + case 0x8E: + case 0x8F: + case 0x90: + case 0x91: + case 0x92: + case 0x93: + case 0x94: + case 0x95: + case 0x96: + case 0x97: + return get_cbor_array(static_cast(static_cast(current) & 0x1Fu), tag_handler); - Inserts @a cnt copies of @a val before iterator @a pos. + case 0x98: // array (one-byte uint8_t for n follows) + { + std::uint8_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); + } - @param[in] pos iterator before which the content will be inserted; may be - the end() iterator - @param[in] cnt number of copies of @a val to insert - @param[in] val element to insert - @return iterator pointing to the first element inserted, or @a pos if - `cnt==0` + case 0x99: // array (two-byte uint16_t for n follow) + { + std::uint16_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); + } - @throw std::domain_error if called on JSON values other than arrays; - example: `"cannot use insert() with string"` - @throw std::domain_error if @a pos is not an iterator of *this; example: - `"iterator does not fit current value"` + case 0x9A: // array (four-byte uint32_t for n follow) + { + std::uint32_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); + } - @complexity Linear in @a cnt plus linear in the distance between @a pos - and end of the container. + case 0x9B: // array (eight-byte uint64_t for n follow) + { + std::uint64_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_array(detail::conditional_static_cast(len), tag_handler); + } - @liveexample{The example shows how `insert()` is used.,insert__count} + case 0x9F: // array (indefinite length) + return get_cbor_array(static_cast(-1), tag_handler); - @since version 1.0.0 - */ - iterator insert(const_iterator pos, size_type cnt, const basic_json& val) - { - // insert only works for arrays - if (is_array()) - { - // check if iterator pos fits to this JSON value - if (pos.m_object != this) + // map (0x00..0x17 pairs of data items follow) + case 0xA0: + case 0xA1: + case 0xA2: + case 0xA3: + case 0xA4: + case 0xA5: + case 0xA6: + case 0xA7: + case 0xA8: + case 0xA9: + case 0xAA: + case 0xAB: + case 0xAC: + case 0xAD: + case 0xAE: + case 0xAF: + case 0xB0: + case 0xB1: + case 0xB2: + case 0xB3: + case 0xB4: + case 0xB5: + case 0xB6: + case 0xB7: + return get_cbor_object(static_cast(static_cast(current) & 0x1Fu), tag_handler); + + case 0xB8: // map (one-byte uint8_t for n follows) { - JSON_THROW(std::domain_error("iterator does not fit current value")); + std::uint8_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); } - // insert to array and return iterator - iterator result(this); - result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val); - return result; - } + case 0xB9: // map (two-byte uint16_t for n follow) + { + std::uint16_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); + } - JSON_THROW(std::domain_error("cannot use insert() with " + type_name())); - } + case 0xBA: // map (four-byte uint32_t for n follow) + { + std::uint32_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); + } - /*! - @brief inserts elements + case 0xBB: // map (eight-byte uint64_t for n follow) + { + std::uint64_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_object(detail::conditional_static_cast(len), tag_handler); + } - Inserts elements from range `[first, last)` before iterator @a pos. - - @param[in] pos iterator before which the content will be inserted; may be - the end() iterator - @param[in] first begin of the range of elements to insert - @param[in] last end of the range of elements to insert - - @throw std::domain_error if called on JSON values other than arrays; - example: `"cannot use insert() with string"` - @throw std::domain_error if @a pos is not an iterator of *this; example: - `"iterator does not fit current value"` - @throw std::domain_error if @a first and @a last do not belong to the same - JSON value; example: `"iterators do not fit"` - @throw std::domain_error if @a first or @a last are iterators into - container for which insert is called; example: `"passed iterators may not - belong to container"` - - @return iterator pointing to the first element inserted, or @a pos if - `first==last` - - @complexity Linear in `std::distance(first, last)` plus linear in the - distance between @a pos and end of the container. - - @liveexample{The example shows how `insert()` is used.,insert__range} + case 0xBF: // map (indefinite length) + return get_cbor_object(static_cast(-1), tag_handler); + + case 0xC6: // tagged item + case 0xC7: + case 0xC8: + case 0xC9: + case 0xCA: + case 0xCB: + case 0xCC: + case 0xCD: + case 0xCE: + case 0xCF: + case 0xD0: + case 0xD1: + case 0xD2: + case 0xD3: + case 0xD4: + case 0xD8: // tagged item (1 bytes follow) + case 0xD9: // tagged item (2 bytes follow) + case 0xDA: // tagged item (4 bytes follow) + case 0xDB: // tagged item (8 bytes follow) + { + switch (tag_handler) + { + case cbor_tag_handler_t::error: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); + } - @since version 1.0.0 - */ - iterator insert(const_iterator pos, const_iterator first, const_iterator last) - { - // insert only works for arrays - if (not is_array()) - { - JSON_THROW(std::domain_error("cannot use insert() with " + type_name())); - } + case cbor_tag_handler_t::ignore: + { + // ignore binary subtype + switch (current) + { + case 0xD8: + { + std::uint8_t subtype_to_ignore{}; + get_number(input_format_t::cbor, subtype_to_ignore); + break; + } + case 0xD9: + { + std::uint16_t subtype_to_ignore{}; + get_number(input_format_t::cbor, subtype_to_ignore); + break; + } + case 0xDA: + { + std::uint32_t subtype_to_ignore{}; + get_number(input_format_t::cbor, subtype_to_ignore); + break; + } + case 0xDB: + { + std::uint64_t subtype_to_ignore{}; + get_number(input_format_t::cbor, subtype_to_ignore); + break; + } + default: + break; + } + return parse_cbor_internal(true, tag_handler); + } - // check if iterator pos fits to this JSON value - if (pos.m_object != this) - { - JSON_THROW(std::domain_error("iterator does not fit current value")); - } + case cbor_tag_handler_t::store: + { + binary_t b; + // use binary subtype and store in binary container + switch (current) + { + case 0xD8: + { + std::uint8_t subtype{}; + get_number(input_format_t::cbor, subtype); + b.set_subtype(detail::conditional_static_cast(subtype)); + break; + } + case 0xD9: + { + std::uint16_t subtype{}; + get_number(input_format_t::cbor, subtype); + b.set_subtype(detail::conditional_static_cast(subtype)); + break; + } + case 0xDA: + { + std::uint32_t subtype{}; + get_number(input_format_t::cbor, subtype); + b.set_subtype(detail::conditional_static_cast(subtype)); + break; + } + case 0xDB: + { + std::uint64_t subtype{}; + get_number(input_format_t::cbor, subtype); + b.set_subtype(detail::conditional_static_cast(subtype)); + break; + } + default: + return parse_cbor_internal(true, tag_handler); + } + get(); + return get_cbor_binary(b) && sax->binary(b); + } - // check if range iterators belong to the same JSON object - if (first.m_object != last.m_object) - { - JSON_THROW(std::domain_error("iterators do not fit")); - } + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + return false; // LCOV_EXCL_LINE + } + } - if (first.m_object == this or last.m_object == this) - { - JSON_THROW(std::domain_error("passed iterators may not belong to container")); - } + case 0xF4: // false + return sax->boolean(false); - // insert to array and return iterator - iterator result(this); - result.m_it.array_iterator = m_value.array->insert( - pos.m_it.array_iterator, - first.m_it.array_iterator, - last.m_it.array_iterator); - return result; - } + case 0xF5: // true + return sax->boolean(true); - /*! - @brief inserts elements + case 0xF6: // null + return sax->null(); - Inserts elements from initializer list @a ilist before iterator @a pos. + case 0xF9: // Half-Precision Float (two-byte IEEE 754) + { + const auto byte1_raw = get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number"))) + { + return false; + } + const auto byte2_raw = get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number"))) + { + return false; + } - @param[in] pos iterator before which the content will be inserted; may be - the end() iterator - @param[in] ilist initializer list to insert the values from + const auto byte1 = static_cast(byte1_raw); + const auto byte2 = static_cast(byte2_raw); - @throw std::domain_error if called on JSON values other than arrays; - example: `"cannot use insert() with string"` - @throw std::domain_error if @a pos is not an iterator of *this; example: - `"iterator does not fit current value"` + // code from RFC 7049, Appendix D, Figure 3: + // As half-precision floating-point numbers were only added + // to IEEE 754 in 2008, today's programming platforms often + // still only have limited support for them. It is very + // easy to include at least decoding support for them even + // without such support. An example of a small decoder for + // half-precision floating-point numbers in the C language + // is shown in Fig. 3. + const auto half = static_cast((byte1 << 8u) + byte2); + const double val = [&half] + { + const int exp = (half >> 10u) & 0x1Fu; + const unsigned int mant = half & 0x3FFu; + JSON_ASSERT(0 <= exp&& exp <= 32); + JSON_ASSERT(mant <= 1024); + switch (exp) + { + case 0: + return std::ldexp(mant, -24); + case 31: + return (mant == 0) + ? std::numeric_limits::infinity() + : std::numeric_limits::quiet_NaN(); + default: + return std::ldexp(mant + 1024, exp - 25); + } + }(); + return sax->number_float((half & 0x8000u) != 0 + ? static_cast(-val) + : static_cast(val), ""); + } - @return iterator pointing to the first element inserted, or @a pos if - `ilist` is empty + case 0xFA: // Single-Precision Float (four-byte IEEE 754) + { + float number{}; + return get_number(input_format_t::cbor, number) && sax->number_float(static_cast(number), ""); + } - @complexity Linear in `ilist.size()` plus linear in the distance between - @a pos and end of the container. + case 0xFB: // Double-Precision Float (eight-byte IEEE 754) + { + double number{}; + return get_number(input_format_t::cbor, number) && sax->number_float(static_cast(number), ""); + } - @liveexample{The example shows how `insert()` is used.,insert__ilist} + default: // anything else (0xFF is handled inside the other types) + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); + } + } + } - @since version 1.0.0 + /*! + @brief reads a CBOR string + This function first reads starting bytes to determine the expected + string length and then copies this number of bytes into a string. + Additionally, CBOR's strings with indefinite lengths are supported. + @param[out] result created string + @return whether string creation completed */ - iterator insert(const_iterator pos, std::initializer_list ilist) + bool get_cbor_string(string_t& result) { - // insert only works for arrays - if (not is_array()) + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "string"))) { - JSON_THROW(std::domain_error("cannot use insert() with " + type_name())); + return false; } - // check if iterator pos fits to this JSON value - if (pos.m_object != this) + switch (current) { - JSON_THROW(std::domain_error("iterator does not fit current value")); - } - - // insert to array and return iterator - iterator result(this); - result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, ilist); - return result; - } + // UTF-8 string (0x00..0x17 bytes follow) + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: + case 0x70: + case 0x71: + case 0x72: + case 0x73: + case 0x74: + case 0x75: + case 0x76: + case 0x77: + { + return get_string(input_format_t::cbor, static_cast(current) & 0x1Fu, result); + } - /*! - @brief exchanges the values + case 0x78: // UTF-8 string (one-byte uint8_t for n follows) + { + std::uint8_t len{}; + return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); + } - Exchanges the contents of the JSON value with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. + case 0x79: // UTF-8 string (two-byte uint16_t for n follow) + { + std::uint16_t len{}; + return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); + } - @param[in,out] other JSON value to exchange the contents with + case 0x7A: // UTF-8 string (four-byte uint32_t for n follow) + { + std::uint32_t len{}; + return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); + } - @complexity Constant. + case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow) + { + std::uint64_t len{}; + return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); + } - @liveexample{The example below shows how JSON values can be swapped with - `swap()`.,swap__reference} + case 0x7F: // UTF-8 string (indefinite length) + { + while (get() != 0xFF) + { + string_t chunk; + if (!get_cbor_string(chunk)) + { + return false; + } + result.append(chunk); + } + return true; + } - @since version 1.0.0 - */ - void swap(reference other) noexcept ( - std::is_nothrow_move_constructible::value and - std::is_nothrow_move_assignable::value and - std::is_nothrow_move_constructible::value and - std::is_nothrow_move_assignable::value - ) - { - std::swap(m_type, other.m_type); - std::swap(m_value, other.m_value); - assert_invariant(); + default: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x60-0x7B) or indefinite string type (0x7F); last byte: 0x" + last_token, "string"), BasicJsonType())); + } + } } /*! - @brief exchanges the values - - Exchanges the contents of a JSON array with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. - - @param[in,out] other array to exchange the contents with - - @throw std::domain_error when JSON value is not an array; example: - `"cannot use swap() with string"` - - @complexity Constant. - - @liveexample{The example below shows how arrays can be swapped with - `swap()`.,swap__array_t} - - @since version 1.0.0 + @brief reads a CBOR byte array + This function first reads starting bytes to determine the expected + byte array length and then copies this number of bytes into the byte array. + Additionally, CBOR's byte arrays with indefinite lengths are supported. + @param[out] result created byte array + @return whether byte array creation completed */ - void swap(array_t& other) + bool get_cbor_binary(binary_t& result) { - // swap only works for arrays - if (is_array()) + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "binary"))) { - std::swap(*(m_value.array), other); + return false; } - else + + switch (current) { - JSON_THROW(std::domain_error("cannot use swap() with " + type_name())); - } - } + // Binary data (0x00..0x17 bytes follow) + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: + case 0x51: + case 0x52: + case 0x53: + case 0x54: + case 0x55: + case 0x56: + case 0x57: + { + return get_binary(input_format_t::cbor, static_cast(current) & 0x1Fu, result); + } - /*! - @brief exchanges the values + case 0x58: // Binary data (one-byte uint8_t for n follows) + { + std::uint8_t len{}; + return get_number(input_format_t::cbor, len) && + get_binary(input_format_t::cbor, len, result); + } - Exchanges the contents of a JSON object with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. + case 0x59: // Binary data (two-byte uint16_t for n follow) + { + std::uint16_t len{}; + return get_number(input_format_t::cbor, len) && + get_binary(input_format_t::cbor, len, result); + } - @param[in,out] other object to exchange the contents with + case 0x5A: // Binary data (four-byte uint32_t for n follow) + { + std::uint32_t len{}; + return get_number(input_format_t::cbor, len) && + get_binary(input_format_t::cbor, len, result); + } - @throw std::domain_error when JSON value is not an object; example: - `"cannot use swap() with string"` + case 0x5B: // Binary data (eight-byte uint64_t for n follow) + { + std::uint64_t len{}; + return get_number(input_format_t::cbor, len) && + get_binary(input_format_t::cbor, len, result); + } - @complexity Constant. + case 0x5F: // Binary data (indefinite length) + { + while (get() != 0xFF) + { + binary_t chunk; + if (!get_cbor_binary(chunk)) + { + return false; + } + result.insert(result.end(), chunk.begin(), chunk.end()); + } + return true; + } - @liveexample{The example below shows how objects can be swapped with - `swap()`.,swap__object_t} + default: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x40-0x5B) or indefinite binary array type (0x5F); last byte: 0x" + last_token, "binary"), BasicJsonType())); + } + } + } - @since version 1.0.0 + /*! + @param[in] len the length of the array or static_cast(-1) for an + array of indefinite size + @param[in] tag_handler how CBOR tags should be treated + @return whether array creation completed */ - void swap(object_t& other) + bool get_cbor_array(const std::size_t len, + const cbor_tag_handler_t tag_handler) { - // swap only works for objects - if (is_object()) + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(len))) { - std::swap(*(m_value.object), other); + return false; + } + + if (len != static_cast(-1)) + { + for (std::size_t i = 0; i < len; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) + { + return false; + } + } } else { - JSON_THROW(std::domain_error("cannot use swap() with " + type_name())); + while (get() != 0xFF) + { + if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(false, tag_handler))) + { + return false; + } + } } + + return sax->end_array(); } /*! - @brief exchanges the values - - Exchanges the contents of a JSON string with those of @a other. Does not - invoke any move, copy, or swap operations on individual elements. All - iterators and references remain valid. The past-the-end iterator is - invalidated. - - @param[in,out] other string to exchange the contents with - - @throw std::domain_error when JSON value is not a string; example: `"cannot - use swap() with boolean"` - - @complexity Constant. - - @liveexample{The example below shows how strings can be swapped with - `swap()`.,swap__string_t} - - @since version 1.0.0 + @param[in] len the length of the object or static_cast(-1) for an + object of indefinite size + @param[in] tag_handler how CBOR tags should be treated + @return whether object creation completed */ - void swap(string_t& other) + bool get_cbor_object(const std::size_t len, + const cbor_tag_handler_t tag_handler) { - // swap only works for strings - if (is_string()) + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(len))) { - std::swap(*(m_value.string), other); - } - else - { - JSON_THROW(std::domain_error("cannot use swap() with " + type_name())); + return false; } - } - - /// @} - - public: - ////////////////////////////////////////// - // lexicographical comparison operators // - ////////////////////////////////////////// - - /// @name lexicographical comparison operators - /// @{ - /*! - @brief comparison: equal + if (len != 0) + { + string_t key; + if (len != static_cast(-1)) + { + for (std::size_t i = 0; i < len; ++i) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!get_cbor_string(key) || !sax->key(key))) + { + return false; + } - Compares two JSON values for equality according to the following rules: - - Two JSON values are equal if (1) they are from the same type and (2) - their stored values are the same. - - Integer and floating-point numbers are automatically converted before - comparison. Floating-point numbers are compared indirectly: two - floating-point numbers `f1` and `f2` are considered equal if neither - `f1 > f2` nor `f2 > f1` holds. - - Two JSON null values are equal. + if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) + { + return false; + } + key.clear(); + } + } + else + { + while (get() != 0xFF) + { + if (JSON_HEDLEY_UNLIKELY(!get_cbor_string(key) || !sax->key(key))) + { + return false; + } - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether the values @a lhs and @a rhs are equal + if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) + { + return false; + } + key.clear(); + } + } + } - @complexity Linear. + return sax->end_object(); + } - @liveexample{The example demonstrates comparing several JSON - types.,operator__equal} + ///////////// + // MsgPack // + ///////////// - @since version 1.0.0 + /*! + @return whether a valid MessagePack value was passed to the SAX parser */ - friend bool operator==(const_reference lhs, const_reference rhs) noexcept + bool parse_msgpack_internal() { - const auto lhs_type = lhs.type(); - const auto rhs_type = rhs.type(); - - if (lhs_type == rhs_type) + switch (get()) { - switch (lhs_type) - { - case value_t::array: - { - return *lhs.m_value.array == *rhs.m_value.array; - } - case value_t::object: - { - return *lhs.m_value.object == *rhs.m_value.object; - } - case value_t::null: - { - return true; - } - case value_t::string: - { - return *lhs.m_value.string == *rhs.m_value.string; - } - case value_t::boolean: - { - return lhs.m_value.boolean == rhs.m_value.boolean; - } - case value_t::number_integer: - { - return lhs.m_value.number_integer == rhs.m_value.number_integer; - } - case value_t::number_unsigned: - { - return lhs.m_value.number_unsigned == rhs.m_value.number_unsigned; - } - case value_t::number_float: - { - return lhs.m_value.number_float == rhs.m_value.number_float; - } - default: - { - return false; - } + // EOF + case std::char_traits::eof(): + return unexpect_eof(input_format_t::msgpack, "value"); + + // positive fixint + case 0x00: + case 0x01: + case 0x02: + case 0x03: + case 0x04: + case 0x05: + case 0x06: + case 0x07: + case 0x08: + case 0x09: + case 0x0A: + case 0x0B: + case 0x0C: + case 0x0D: + case 0x0E: + case 0x0F: + case 0x10: + case 0x11: + case 0x12: + case 0x13: + case 0x14: + case 0x15: + case 0x16: + case 0x17: + case 0x18: + case 0x19: + case 0x1A: + case 0x1B: + case 0x1C: + case 0x1D: + case 0x1E: + case 0x1F: + case 0x20: + case 0x21: + case 0x22: + case 0x23: + case 0x24: + case 0x25: + case 0x26: + case 0x27: + case 0x28: + case 0x29: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: + case 0x30: + case 0x31: + case 0x32: + case 0x33: + case 0x34: + case 0x35: + case 0x36: + case 0x37: + case 0x38: + case 0x39: + case 0x3A: + case 0x3B: + case 0x3C: + case 0x3D: + case 0x3E: + case 0x3F: + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: + case 0x51: + case 0x52: + case 0x53: + case 0x54: + case 0x55: + case 0x56: + case 0x57: + case 0x58: + case 0x59: + case 0x5A: + case 0x5B: + case 0x5C: + case 0x5D: + case 0x5E: + case 0x5F: + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: + case 0x70: + case 0x71: + case 0x72: + case 0x73: + case 0x74: + case 0x75: + case 0x76: + case 0x77: + case 0x78: + case 0x79: + case 0x7A: + case 0x7B: + case 0x7C: + case 0x7D: + case 0x7E: + case 0x7F: + return sax->number_unsigned(static_cast(current)); + + // fixmap + case 0x80: + case 0x81: + case 0x82: + case 0x83: + case 0x84: + case 0x85: + case 0x86: + case 0x87: + case 0x88: + case 0x89: + case 0x8A: + case 0x8B: + case 0x8C: + case 0x8D: + case 0x8E: + case 0x8F: + return get_msgpack_object(static_cast(static_cast(current) & 0x0Fu)); + + // fixarray + case 0x90: + case 0x91: + case 0x92: + case 0x93: + case 0x94: + case 0x95: + case 0x96: + case 0x97: + case 0x98: + case 0x99: + case 0x9A: + case 0x9B: + case 0x9C: + case 0x9D: + case 0x9E: + case 0x9F: + return get_msgpack_array(static_cast(static_cast(current) & 0x0Fu)); + + // fixstr + case 0xA0: + case 0xA1: + case 0xA2: + case 0xA3: + case 0xA4: + case 0xA5: + case 0xA6: + case 0xA7: + case 0xA8: + case 0xA9: + case 0xAA: + case 0xAB: + case 0xAC: + case 0xAD: + case 0xAE: + case 0xAF: + case 0xB0: + case 0xB1: + case 0xB2: + case 0xB3: + case 0xB4: + case 0xB5: + case 0xB6: + case 0xB7: + case 0xB8: + case 0xB9: + case 0xBA: + case 0xBB: + case 0xBC: + case 0xBD: + case 0xBE: + case 0xBF: + case 0xD9: // str 8 + case 0xDA: // str 16 + case 0xDB: // str 32 + { + string_t s; + return get_msgpack_string(s) && sax->string(s); } - } - else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_float) - { - return static_cast(lhs.m_value.number_integer) == rhs.m_value.number_float; - } - else if (lhs_type == value_t::number_float and rhs_type == value_t::number_integer) - { - return lhs.m_value.number_float == static_cast(rhs.m_value.number_integer); - } - else if (lhs_type == value_t::number_unsigned and rhs_type == value_t::number_float) - { - return static_cast(lhs.m_value.number_unsigned) == rhs.m_value.number_float; - } - else if (lhs_type == value_t::number_float and rhs_type == value_t::number_unsigned) - { - return lhs.m_value.number_float == static_cast(rhs.m_value.number_unsigned); - } - else if (lhs_type == value_t::number_unsigned and rhs_type == value_t::number_integer) - { - return static_cast(lhs.m_value.number_unsigned) == rhs.m_value.number_integer; - } - else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_unsigned) - { - return lhs.m_value.number_integer == static_cast(rhs.m_value.number_unsigned); - } - return false; - } + case 0xC0: // nil + return sax->null(); + + case 0xC2: // false + return sax->boolean(false); + + case 0xC3: // true + return sax->boolean(true); + + case 0xC4: // bin 8 + case 0xC5: // bin 16 + case 0xC6: // bin 32 + case 0xC7: // ext 8 + case 0xC8: // ext 16 + case 0xC9: // ext 32 + case 0xD4: // fixext 1 + case 0xD5: // fixext 2 + case 0xD6: // fixext 4 + case 0xD7: // fixext 8 + case 0xD8: // fixext 16 + { + binary_t b; + return get_msgpack_binary(b) && sax->binary(b); + } - /*! - @brief comparison: equal - @copydoc operator==(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator==(const_reference lhs, const ScalarType rhs) noexcept - { - return (lhs == basic_json(rhs)); - } + case 0xCA: // float 32 + { + float number{}; + return get_number(input_format_t::msgpack, number) && sax->number_float(static_cast(number), ""); + } - /*! - @brief comparison: equal - @copydoc operator==(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator==(const ScalarType lhs, const_reference rhs) noexcept - { - return (basic_json(lhs) == rhs); - } + case 0xCB: // float 64 + { + double number{}; + return get_number(input_format_t::msgpack, number) && sax->number_float(static_cast(number), ""); + } - /*! - @brief comparison: not equal + case 0xCC: // uint 8 + { + std::uint8_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); + } + + case 0xCD: // uint 16 + { + std::uint16_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); + } + + case 0xCE: // uint 32 + { + std::uint32_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); + } - Compares two JSON values for inequality by calculating `not (lhs == rhs)`. + case 0xCF: // uint 64 + { + std::uint64_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); + } - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether the values @a lhs and @a rhs are not equal + case 0xD0: // int 8 + { + std::int8_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_integer(number); + } - @complexity Linear. + case 0xD1: // int 16 + { + std::int16_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_integer(number); + } - @liveexample{The example demonstrates comparing several JSON - types.,operator__notequal} + case 0xD2: // int 32 + { + std::int32_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_integer(number); + } - @since version 1.0.0 - */ - friend bool operator!=(const_reference lhs, const_reference rhs) noexcept - { - return not (lhs == rhs); - } + case 0xD3: // int 64 + { + std::int64_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_integer(number); + } - /*! - @brief comparison: not equal - @copydoc operator!=(const_reference, const_reference) - */ - template::value, int>::type = 0> - friend bool operator!=(const_reference lhs, const ScalarType rhs) noexcept - { - return (lhs != basic_json(rhs)); + case 0xDC: // array 16 + { + std::uint16_t len{}; + return get_number(input_format_t::msgpack, len) && get_msgpack_array(static_cast(len)); + } + + case 0xDD: // array 32 + { + std::uint32_t len{}; + return get_number(input_format_t::msgpack, len) && get_msgpack_array(static_cast(len)); + } + + case 0xDE: // map 16 + { + std::uint16_t len{}; + return get_number(input_format_t::msgpack, len) && get_msgpack_object(static_cast(len)); + } + + case 0xDF: // map 32 + { + std::uint32_t len{}; + return get_number(input_format_t::msgpack, len) && get_msgpack_object(static_cast(len)); + } + + // negative fixint + case 0xE0: + case 0xE1: + case 0xE2: + case 0xE3: + case 0xE4: + case 0xE5: + case 0xE6: + case 0xE7: + case 0xE8: + case 0xE9: + case 0xEA: + case 0xEB: + case 0xEC: + case 0xED: + case 0xEE: + case 0xEF: + case 0xF0: + case 0xF1: + case 0xF2: + case 0xF3: + case 0xF4: + case 0xF5: + case 0xF6: + case 0xF7: + case 0xF8: + case 0xF9: + case 0xFA: + case 0xFB: + case 0xFC: + case 0xFD: + case 0xFE: + case 0xFF: + return sax->number_integer(static_cast(current)); + + default: // anything else + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::msgpack, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); + } + } } /*! - @brief comparison: not equal - @copydoc operator!=(const_reference, const_reference) + @brief reads a MessagePack string + This function first reads starting bytes to determine the expected + string length and then copies this number of bytes into a string. + @param[out] result created string + @return whether string creation completed */ - template::value, int>::type = 0> - friend bool operator!=(const ScalarType lhs, const_reference rhs) noexcept + bool get_msgpack_string(string_t& result) { - return (basic_json(lhs) != rhs); - } + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::msgpack, "string"))) + { + return false; + } - /*! - @brief comparison: less than + switch (current) + { + // fixstr + case 0xA0: + case 0xA1: + case 0xA2: + case 0xA3: + case 0xA4: + case 0xA5: + case 0xA6: + case 0xA7: + case 0xA8: + case 0xA9: + case 0xAA: + case 0xAB: + case 0xAC: + case 0xAD: + case 0xAE: + case 0xAF: + case 0xB0: + case 0xB1: + case 0xB2: + case 0xB3: + case 0xB4: + case 0xB5: + case 0xB6: + case 0xB7: + case 0xB8: + case 0xB9: + case 0xBA: + case 0xBB: + case 0xBC: + case 0xBD: + case 0xBE: + case 0xBF: + { + return get_string(input_format_t::msgpack, static_cast(current) & 0x1Fu, result); + } - Compares whether one JSON value @a lhs is less than another JSON value @a - rhs according to the following rules: - - If @a lhs and @a rhs have the same type, the values are compared using - the default `<` operator. - - Integer and floating-point numbers are automatically converted before - comparison - - In case @a lhs and @a rhs have different types, the values are ignored - and the order of the types is considered, see - @ref operator<(const value_t, const value_t). + case 0xD9: // str 8 + { + std::uint8_t len{}; + return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); + } - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether @a lhs is less than @a rhs + case 0xDA: // str 16 + { + std::uint16_t len{}; + return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); + } - @complexity Linear. + case 0xDB: // str 32 + { + std::uint32_t len{}; + return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); + } - @liveexample{The example demonstrates comparing several JSON - types.,operator__less} + default: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::msgpack, "expected length specification (0xA0-0xBF, 0xD9-0xDB); last byte: 0x" + last_token, "string"), BasicJsonType())); + } + } + } - @since version 1.0.0 + /*! + @brief reads a MessagePack byte array + This function first reads starting bytes to determine the expected + byte array length and then copies this number of bytes into a byte array. + @param[out] result created byte array + @return whether byte array creation completed */ - friend bool operator<(const_reference lhs, const_reference rhs) noexcept + bool get_msgpack_binary(binary_t& result) { - const auto lhs_type = lhs.type(); - const auto rhs_type = rhs.type(); + // helper function to set the subtype + auto assign_and_return_true = [&result](std::int8_t subtype) + { + result.set_subtype(static_cast(subtype)); + return true; + }; - if (lhs_type == rhs_type) + switch (current) { - switch (lhs_type) + case 0xC4: // bin 8 { - case value_t::array: - { - return *lhs.m_value.array < *rhs.m_value.array; - } - case value_t::object: - { - return *lhs.m_value.object < *rhs.m_value.object; - } - case value_t::null: - { - return false; - } - case value_t::string: - { - return *lhs.m_value.string < *rhs.m_value.string; - } - case value_t::boolean: - { - return lhs.m_value.boolean < rhs.m_value.boolean; - } - case value_t::number_integer: - { - return lhs.m_value.number_integer < rhs.m_value.number_integer; - } - case value_t::number_unsigned: - { - return lhs.m_value.number_unsigned < rhs.m_value.number_unsigned; - } - case value_t::number_float: - { - return lhs.m_value.number_float < rhs.m_value.number_float; - } - default: - { - return false; - } + std::uint8_t len{}; + return get_number(input_format_t::msgpack, len) && + get_binary(input_format_t::msgpack, len, result); } - } - else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_float) - { - return static_cast(lhs.m_value.number_integer) < rhs.m_value.number_float; - } - else if (lhs_type == value_t::number_float and rhs_type == value_t::number_integer) - { - return lhs.m_value.number_float < static_cast(rhs.m_value.number_integer); - } - else if (lhs_type == value_t::number_unsigned and rhs_type == value_t::number_float) - { - return static_cast(lhs.m_value.number_unsigned) < rhs.m_value.number_float; - } - else if (lhs_type == value_t::number_float and rhs_type == value_t::number_unsigned) - { - return lhs.m_value.number_float < static_cast(rhs.m_value.number_unsigned); - } - else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_unsigned) - { - return lhs.m_value.number_integer < static_cast(rhs.m_value.number_unsigned); - } - else if (lhs_type == value_t::number_unsigned and rhs_type == value_t::number_integer) - { - return static_cast(lhs.m_value.number_unsigned) < rhs.m_value.number_integer; - } - - // We only reach this line if we cannot compare values. In that case, - // we compare types. Note we have to call the operator explicitly, - // because MSVC has problems otherwise. - return operator<(lhs_type, rhs_type); - } - - /*! - @brief comparison: less than or equal - Compares whether one JSON value @a lhs is less than or equal to another - JSON value by calculating `not (rhs < lhs)`. + case 0xC5: // bin 16 + { + std::uint16_t len{}; + return get_number(input_format_t::msgpack, len) && + get_binary(input_format_t::msgpack, len, result); + } - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether @a lhs is less than or equal to @a rhs + case 0xC6: // bin 32 + { + std::uint32_t len{}; + return get_number(input_format_t::msgpack, len) && + get_binary(input_format_t::msgpack, len, result); + } - @complexity Linear. + case 0xC7: // ext 8 + { + std::uint8_t len{}; + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, len) && + get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, len, result) && + assign_and_return_true(subtype); + } - @liveexample{The example demonstrates comparing several JSON - types.,operator__greater} + case 0xC8: // ext 16 + { + std::uint16_t len{}; + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, len) && + get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, len, result) && + assign_and_return_true(subtype); + } - @since version 1.0.0 - */ - friend bool operator<=(const_reference lhs, const_reference rhs) noexcept - { - return not (rhs < lhs); - } + case 0xC9: // ext 32 + { + std::uint32_t len{}; + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, len) && + get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, len, result) && + assign_and_return_true(subtype); + } - /*! - @brief comparison: greater than + case 0xD4: // fixext 1 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 1, result) && + assign_and_return_true(subtype); + } - Compares whether one JSON value @a lhs is greater than another - JSON value by calculating `not (lhs <= rhs)`. + case 0xD5: // fixext 2 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 2, result) && + assign_and_return_true(subtype); + } - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether @a lhs is greater than to @a rhs + case 0xD6: // fixext 4 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 4, result) && + assign_and_return_true(subtype); + } - @complexity Linear. + case 0xD7: // fixext 8 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 8, result) && + assign_and_return_true(subtype); + } - @liveexample{The example demonstrates comparing several JSON - types.,operator__lessequal} + case 0xD8: // fixext 16 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 16, result) && + assign_and_return_true(subtype); + } - @since version 1.0.0 - */ - friend bool operator>(const_reference lhs, const_reference rhs) noexcept - { - return not (lhs <= rhs); + default: // LCOV_EXCL_LINE + return false; // LCOV_EXCL_LINE + } } /*! - @brief comparison: greater than or equal - - Compares whether one JSON value @a lhs is greater than or equal to another - JSON value by calculating `not (lhs < rhs)`. - - @param[in] lhs first JSON value to consider - @param[in] rhs second JSON value to consider - @return whether @a lhs is greater than or equal to @a rhs - - @complexity Linear. - - @liveexample{The example demonstrates comparing several JSON - types.,operator__greaterequal} - - @since version 1.0.0 + @param[in] len the length of the array + @return whether array creation completed */ - friend bool operator>=(const_reference lhs, const_reference rhs) noexcept + bool get_msgpack_array(const std::size_t len) { - return not (lhs < rhs); - } - - /// @} - + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(len))) + { + return false; + } - /////////////////// - // serialization // - /////////////////// + for (std::size_t i = 0; i < len; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!parse_msgpack_internal())) + { + return false; + } + } - /// @name serialization - /// @{ + return sax->end_array(); + } /*! - @brief serialize to stream - - Serialize the given JSON value @a j to the output stream @a o. The JSON - value will be serialized using the @ref dump member function. The - indentation of the output can be controlled with the member variable - `width` of the output stream @a o. For instance, using the manipulator - `std::setw(4)` on @a o sets the indentation level to `4` and the - serialization result is the same as calling `dump(4)`. - - @param[in,out] o stream to serialize to - @param[in] j JSON value to serialize - - @return the stream @a o - - @complexity Linear. - - @liveexample{The example below shows the serialization with different - parameters to `width` to adjust the indentation level.,operator_serialize} - - @since version 1.0.0 + @param[in] len the length of the object + @return whether object creation completed */ - friend std::ostream& operator<<(std::ostream& o, const basic_json& j) + bool get_msgpack_object(const std::size_t len) { - // read width member and use it as indentation parameter if nonzero - const bool pretty_print = (o.width() > 0); - const auto indentation = (pretty_print ? o.width() : 0); + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(len))) + { + return false; + } - // reset width to 0 for subsequent calls to this stream - o.width(0); + string_t key; + for (std::size_t i = 0; i < len; ++i) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!get_msgpack_string(key) || !sax->key(key))) + { + return false; + } - // do the actual serialization - j.dump(o, pretty_print, static_cast(indentation)); + if (JSON_HEDLEY_UNLIKELY(!parse_msgpack_internal())) + { + return false; + } + key.clear(); + } - return o; + return sax->end_object(); } + //////////// + // UBJSON // + //////////// + /*! - @brief serialize to stream - @copydoc operator<<(std::ostream&, const basic_json&) + @param[in] get_char whether a new character should be retrieved from the + input (true, default) or whether the last read + character should be considered instead + @return whether a valid UBJSON value was passed to the SAX parser */ - friend std::ostream& operator>>(const basic_json& j, std::ostream& o) + bool parse_ubjson_internal(const bool get_char = true) { - return o << j; + return get_ubjson_value(get_char ? get_ignore_noop() : current); } - /// @} - - - ///////////////////// - // deserialization // - ///////////////////// - - /// @name deserialization - /// @{ - /*! - @brief deserialize from an array - - This function reads from an array of 1-byte values. - - @pre Each element of the container has a size of 1 byte. Violating this - precondition yields undefined behavior. **This precondition is enforced - with a static assertion.** - - @param[in] array array to read from - @param[in] cb a parser callback function of type @ref parser_callback_t - which is used to control the deserialization by filtering unwanted values - (optional) - - @return result of the deserialization - - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. The complexity can be higher if the parser callback function - @a cb has a super-linear complexity. - - @note A UTF-8 byte order mark is silently ignored. - - @liveexample{The example below demonstrates the `parse()` function reading - from an array.,parse__array__parser_callback_t} - - @since version 2.0.3 + @brief reads a UBJSON string + This function is either called after reading the 'S' byte explicitly + indicating a string, or in case of an object key where the 'S' byte can be + left out. + @param[out] result created string + @param[in] get_char whether a new character should be retrieved from the + input (true, default) or whether the last read + character should be considered instead + @return whether string creation completed */ - template - static basic_json parse(T (&array)[N], - const parser_callback_t cb = nullptr) + bool get_ubjson_string(string_t& result, const bool get_char = true) { - // delegate the call to the iterator-range parse overload - return parse(std::begin(array), std::end(array), cb); - } - - /*! - @brief deserialize from string literal + if (get_char) + { + get(); // TODO(niels): may we ignore N here? + } - @tparam CharT character/literal type with size of 1 byte - @param[in] s string literal to read a serialized JSON value from - @param[in] cb a parser callback function of type @ref parser_callback_t - which is used to control the deserialization by filtering unwanted values - (optional) + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value"))) + { + return false; + } - @return result of the deserialization + switch (current) + { + case 'U': + { + std::uint8_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. The complexity can be higher if the parser callback function - @a cb has a super-linear complexity. + case 'i': + { + std::int8_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } - @note A UTF-8 byte order mark is silently ignored. - @note String containers like `std::string` or @ref string_t can be parsed - with @ref parse(const ContiguousContainer&, const parser_callback_t) + case 'I': + { + std::int16_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } - @liveexample{The example below demonstrates the `parse()` function with - and without callback function.,parse__string__parser_callback_t} + case 'l': + { + std::int32_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } - @sa @ref parse(std::istream&, const parser_callback_t) for a version that - reads from an input stream + case 'L': + { + std::int64_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } - @since version 1.0.0 (originally for @ref string_t) - */ - template::value and - std::is_integral::type>::value and - sizeof(typename std::remove_pointer::type) == 1, int>::type = 0> - static basic_json parse(const CharT s, - const parser_callback_t cb = nullptr) - { - return parser(reinterpret_cast(s), cb).parse(); + default: + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L); last byte: 0x" + last_token, "string"), BasicJsonType())); + } } /*! - @brief deserialize from stream - - @param[in,out] i stream to read a serialized JSON value from - @param[in] cb a parser callback function of type @ref parser_callback_t - which is used to control the deserialization by filtering unwanted values - (optional) - - @return result of the deserialization + @param[out] result determined size + @return whether size determination completed + */ + bool get_ubjson_size_value(std::size_t& result) + { + switch (get_ignore_noop()) + { + case 'U': + { + std::uint8_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); + return true; + } - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. The complexity can be higher if the parser callback function - @a cb has a super-linear complexity. + case 'i': + { + std::int8_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); // NOLINT(bugprone-signed-char-misuse,cert-str34-c): number is not a char + return true; + } - @note A UTF-8 byte order mark is silently ignored. + case 'I': + { + std::int16_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); + return true; + } - @liveexample{The example below demonstrates the `parse()` function with - and without callback function.,parse__istream__parser_callback_t} + case 'l': + { + std::int32_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); + return true; + } - @sa @ref parse(const CharT, const parser_callback_t) for a version - that reads from a string + case 'L': + { + std::int64_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); + return true; + } - @since version 1.0.0 - */ - static basic_json parse(std::istream& i, - const parser_callback_t cb = nullptr) - { - return parser(i, cb).parse(); + default: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L) after '#'; last byte: 0x" + last_token, "size"), BasicJsonType())); + } + } } /*! - @copydoc parse(std::istream&, const parser_callback_t) + @brief determine the type and size for a container + In the optimized UBJSON format, a type and a size can be provided to allow + for a more compact representation. + @param[out] result pair of the size and the type + @return whether pair creation completed */ - static basic_json parse(std::istream&& i, - const parser_callback_t cb = nullptr) + bool get_ubjson_size_type(std::pair& result) { - return parser(i, cb).parse(); - } - - /*! - @brief deserialize from an iterator range with contiguous storage - - This function reads from an iterator range of a container with contiguous - storage of 1-byte values. Compatible container types include - `std::vector`, `std::string`, `std::array`, `std::valarray`, and - `std::initializer_list`. Furthermore, C-style arrays can be used with - `std::begin()`/`std::end()`. User-defined containers can be used as long - as they implement random-access iterators and a contiguous storage. - - @pre The iterator range is contiguous. Violating this precondition yields - undefined behavior. **This precondition is enforced with an assertion.** - @pre Each element in the range has a size of 1 byte. Violating this - precondition yields undefined behavior. **This precondition is enforced - with a static assertion.** - - @warning There is no way to enforce all preconditions at compile-time. If - the function is called with noncompliant iterators and with - assertions switched off, the behavior is undefined and will most - likely yield segmentation violation. - - @tparam IteratorType iterator of container with contiguous storage - @param[in] first begin of the range to parse (included) - @param[in] last end of the range to parse (excluded) - @param[in] cb a parser callback function of type @ref parser_callback_t - which is used to control the deserialization by filtering unwanted values - (optional) - - @return result of the deserialization - - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. The complexity can be higher if the parser callback function - @a cb has a super-linear complexity. + result.first = string_t::npos; // size + result.second = 0; // type - @note A UTF-8 byte order mark is silently ignored. + get_ignore_noop(); - @liveexample{The example below demonstrates the `parse()` function reading - from an iterator range.,parse__iteratortype__parser_callback_t} - - @since version 2.0.3 - */ - template::iterator_category>::value, int>::type = 0> - static basic_json parse(IteratorType first, IteratorType last, - const parser_callback_t cb = nullptr) - { - // assertion to check that the iterator range is indeed contiguous, - // see http://stackoverflow.com/a/35008842/266378 for more discussion - assert(std::accumulate(first, last, std::pair(true, 0), - [&first](std::pair res, decltype(*first) val) + if (current == '$') { - res.first &= (val == *(std::next(std::addressof(*first), res.second++))); - return res; - }).first); + result.second = get(); // must not ignore 'N', because 'N' maybe the type + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "type"))) + { + return false; + } + + get_ignore_noop(); + if (JSON_HEDLEY_UNLIKELY(current != '#')) + { + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value"))) + { + return false; + } + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "expected '#' after type information; last byte: 0x" + last_token, "size"), BasicJsonType())); + } - // assertion to check that each element is 1 byte long - static_assert(sizeof(typename std::iterator_traits::value_type) == 1, - "each element in the iterator range must have the size of 1 byte"); + return get_ubjson_size_value(result.first); + } - // if iterator range is empty, create a parser with an empty string - // to generate "unexpected EOF" error message - if (std::distance(first, last) <= 0) + if (current == '#') { - return parser("").parse(); + return get_ubjson_size_value(result.first); } - return parser(first, last, cb).parse(); + return true; } /*! - @brief deserialize from a container with contiguous storage - - This function reads from a container with contiguous storage of 1-byte - values. Compatible container types include `std::vector`, `std::string`, - `std::array`, and `std::initializer_list`. User-defined containers can be - used as long as they implement random-access iterators and a contiguous - storage. - - @pre The container storage is contiguous. Violating this precondition - yields undefined behavior. **This precondition is enforced with an - assertion.** - @pre Each element of the container has a size of 1 byte. Violating this - precondition yields undefined behavior. **This precondition is enforced - with a static assertion.** + @param prefix the previously read or set type prefix + @return whether value creation completed + */ + bool get_ubjson_value(const char_int_type prefix) + { + switch (prefix) + { + case std::char_traits::eof(): // EOF + return unexpect_eof(input_format_t::ubjson, "value"); - @warning There is no way to enforce all preconditions at compile-time. If - the function is called with a noncompliant container and with - assertions switched off, the behavior is undefined and will most - likely yield segmentation violation. + case 'T': // true + return sax->boolean(true); + case 'F': // false + return sax->boolean(false); - @tparam ContiguousContainer container type with contiguous storage - @param[in] c container to read from - @param[in] cb a parser callback function of type @ref parser_callback_t - which is used to control the deserialization by filtering unwanted values - (optional) + case 'Z': // null + return sax->null(); - @return result of the deserialization + case 'U': + { + std::uint8_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_unsigned(number); + } - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. The complexity can be higher if the parser callback function - @a cb has a super-linear complexity. + case 'i': + { + std::int8_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_integer(number); + } - @note A UTF-8 byte order mark is silently ignored. + case 'I': + { + std::int16_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_integer(number); + } - @liveexample{The example below demonstrates the `parse()` function reading - from a contiguous container.,parse__contiguouscontainer__parser_callback_t} + case 'l': + { + std::int32_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_integer(number); + } - @since version 2.0.3 - */ - template::value and - std::is_base_of< - std::random_access_iterator_tag, - typename std::iterator_traits()))>::iterator_category>::value - , int>::type = 0> - static basic_json parse(const ContiguousContainer& c, - const parser_callback_t cb = nullptr) - { - // delegate the call to the iterator-range parse overload - return parse(std::begin(c), std::end(c), cb); - } + case 'L': + { + std::int64_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_integer(number); + } - /*! - @brief deserialize from stream + case 'd': + { + float number{}; + return get_number(input_format_t::ubjson, number) && sax->number_float(static_cast(number), ""); + } - Deserializes an input stream to a JSON value. + case 'D': + { + double number{}; + return get_number(input_format_t::ubjson, number) && sax->number_float(static_cast(number), ""); + } - @param[in,out] i input stream to read a serialized JSON value from - @param[in,out] j JSON value to write the deserialized input to + case 'H': + { + return get_ubjson_high_precision_number(); + } - @throw std::invalid_argument in case of parse errors + case 'C': // char + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "char"))) + { + return false; + } + if (JSON_HEDLEY_UNLIKELY(current > 127)) + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "byte after 'C' must be in range 0x00..0x7F; last byte: 0x" + last_token, "char"), BasicJsonType())); + } + string_t s(1, static_cast(current)); + return sax->string(s); + } - @complexity Linear in the length of the input. The parser is a predictive - LL(1) parser. + case 'S': // string + { + string_t s; + return get_ubjson_string(s) && sax->string(s); + } - @note A UTF-8 byte order mark is silently ignored. + case '[': // array + return get_ubjson_array(); - @liveexample{The example below shows how a JSON value is constructed by - reading a serialization from a stream.,operator_deserialize} + case '{': // object + return get_ubjson_object(); - @sa parse(std::istream&, const parser_callback_t) for a variant with a - parser callback function to filter values while parsing - - @since version 1.0.0 - */ - friend std::istream& operator<<(basic_json& j, std::istream& i) - { - j = parser(i).parse(); - return i; - } - - /*! - @brief deserialize from stream - @copydoc operator<<(basic_json&, std::istream&) - */ - friend std::istream& operator>>(std::istream& i, basic_json& j) - { - j = parser(i).parse(); - return i; + default: // anything else + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); + } + } } - /// @} - - ////////////////////////////////////////// - // binary serialization/deserialization // - ////////////////////////////////////////// - - /// @name binary serialization/deserialization support - /// @{ - - private: /*! - @note Some code in the switch cases has been copied, because otherwise - copilers would complain about implicit fallthrough and there is no - portable attribute to mute such warnings. + @return whether array creation completed */ - template - static void add_to_vector(std::vector& vec, size_t bytes, const T number) + bool get_ubjson_array() { - assert(bytes == 1 or bytes == 2 or bytes == 4 or bytes == 8); + std::pair size_and_type; + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_size_type(size_and_type))) + { + return false; + } - switch (bytes) + if (size_and_type.first != string_t::npos) { - case 8: + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(size_and_type.first))) { - vec.push_back(static_cast((static_cast(number) >> 070) & 0xff)); - vec.push_back(static_cast((static_cast(number) >> 060) & 0xff)); - vec.push_back(static_cast((static_cast(number) >> 050) & 0xff)); - vec.push_back(static_cast((static_cast(number) >> 040) & 0xff)); - vec.push_back(static_cast((number >> 030) & 0xff)); - vec.push_back(static_cast((number >> 020) & 0xff)); - vec.push_back(static_cast((number >> 010) & 0xff)); - vec.push_back(static_cast(number & 0xff)); - break; + return false; } - case 4: + if (size_and_type.second != 0) { - vec.push_back(static_cast((number >> 030) & 0xff)); - vec.push_back(static_cast((number >> 020) & 0xff)); - vec.push_back(static_cast((number >> 010) & 0xff)); - vec.push_back(static_cast(number & 0xff)); - break; + if (size_and_type.second != 'N') + { + for (std::size_t i = 0; i < size_and_type.first; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_value(size_and_type.second))) + { + return false; + } + } + } } - - case 2: + else { - vec.push_back(static_cast((number >> 010) & 0xff)); - vec.push_back(static_cast(number & 0xff)); - break; + for (std::size_t i = 0; i < size_and_type.first; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) + { + return false; + } + } + } + } + else + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(static_cast(-1)))) + { + return false; } - case 1: + while (current != ']') { - vec.push_back(static_cast(number & 0xff)); - break; + if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal(false))) + { + return false; + } + get_ignore_noop(); } } + + return sax->end_array(); } /*! - @brief take sufficient bytes from a vector to fill an integer variable - - In the context of binary serialization formats, we need to read several - bytes from a byte vector and combine them to multi-byte integral data - types. - - @param[in] vec byte vector to read from - @param[in] current_index the position in the vector after which to read - - @return the next sizeof(T) bytes from @a vec, in reverse order as T - - @tparam T the integral return type - - @throw std::out_of_range if there are less than sizeof(T)+1 bytes in the - vector @a vec to read - - In the for loop, the bytes from the vector are copied in reverse order into - the return value. In the figures below, let sizeof(T)=4 and `i` be the loop - variable. - - Precondition: - - vec: | | | a | b | c | d | T: | | | | | - ^ ^ ^ ^ - current_index i ptr sizeof(T) - - Postcondition: - - vec: | | | a | b | c | d | T: | d | c | b | a | - ^ ^ ^ - | i ptr - current_index - - @sa Code adapted from . + @return whether object creation completed */ - template - static T get_from_vector(const std::vector& vec, const size_t current_index) + bool get_ubjson_object() { - if (current_index + sizeof(T) + 1 > vec.size()) - { - JSON_THROW(std::out_of_range("cannot read " + std::to_string(sizeof(T)) + " bytes from vector")); - } - - T result; - auto* ptr = reinterpret_cast(&result); - for (size_t i = 0; i < sizeof(T); ++i) + std::pair size_and_type; + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_size_type(size_and_type))) { - *ptr++ = vec[current_index + sizeof(T) - i]; + return false; } - return result; - } - - /*! - @brief create a MessagePack serialization of a given JSON value - - This is a straightforward implementation of the MessagePack specification. - - @param[in] j JSON value to serialize - @param[in,out] v byte vector to write the serialization to - @sa https://github.com/msgpack/msgpack/blob/master/spec.md - */ - static void to_msgpack_internal(const basic_json& j, std::vector& v) - { - switch (j.type()) + string_t key; + if (size_and_type.first != string_t::npos) { - case value_t::null: - { - // nil - v.push_back(0xc0); - break; - } - - case value_t::boolean: + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(size_and_type.first))) { - // true and false - v.push_back(j.m_value.boolean ? 0xc3 : 0xc2); - break; + return false; } - case value_t::number_integer: + if (size_and_type.second != 0) { - if (j.m_value.number_integer >= 0) + for (std::size_t i = 0; i < size_and_type.first; ++i) { - // MessagePack does not differentiate between positive - // signed integers and unsigned integers. Therefore, we - // used the code from the value_t::number_unsigned case - // here. - if (j.m_value.number_unsigned < 128) - { - // positive fixnum - add_to_vector(v, 1, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= std::numeric_limits::max()) - { - // uint 8 - v.push_back(0xcc); - add_to_vector(v, 1, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= std::numeric_limits::max()) - { - // uint 16 - v.push_back(0xcd); - add_to_vector(v, 2, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= std::numeric_limits::max()) + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key) || !sax->key(key))) { - // uint 32 - v.push_back(0xce); - add_to_vector(v, 4, j.m_value.number_unsigned); + return false; } - else if (j.m_value.number_unsigned <= std::numeric_limits::max()) + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_value(size_and_type.second))) { - // uint 64 - v.push_back(0xcf); - add_to_vector(v, 8, j.m_value.number_unsigned); + return false; } + key.clear(); } - else + } + else + { + for (std::size_t i = 0; i < size_and_type.first; ++i) { - if (j.m_value.number_integer >= -32) - { - // negative fixnum - add_to_vector(v, 1, j.m_value.number_integer); - } - else if (j.m_value.number_integer >= std::numeric_limits::min() and j.m_value.number_integer <= std::numeric_limits::max()) - { - // int 8 - v.push_back(0xd0); - add_to_vector(v, 1, j.m_value.number_integer); - } - else if (j.m_value.number_integer >= std::numeric_limits::min() and j.m_value.number_integer <= std::numeric_limits::max()) - { - // int 16 - v.push_back(0xd1); - add_to_vector(v, 2, j.m_value.number_integer); - } - else if (j.m_value.number_integer >= std::numeric_limits::min() and j.m_value.number_integer <= std::numeric_limits::max()) + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key) || !sax->key(key))) { - // int 32 - v.push_back(0xd2); - add_to_vector(v, 4, j.m_value.number_integer); + return false; } - else if (j.m_value.number_integer >= std::numeric_limits::min() and j.m_value.number_integer <= std::numeric_limits::max()) + if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) { - // int 64 - v.push_back(0xd3); - add_to_vector(v, 8, j.m_value.number_integer); + return false; } + key.clear(); } - break; + } + } + else + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(static_cast(-1)))) + { + return false; } - case value_t::number_unsigned: + while (current != '}') { - if (j.m_value.number_unsigned < 128) - { - // positive fixnum - add_to_vector(v, 1, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= std::numeric_limits::max()) - { - // uint 8 - v.push_back(0xcc); - add_to_vector(v, 1, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= std::numeric_limits::max()) - { - // uint 16 - v.push_back(0xcd); - add_to_vector(v, 2, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= std::numeric_limits::max()) + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key, false) || !sax->key(key))) { - // uint 32 - v.push_back(0xce); - add_to_vector(v, 4, j.m_value.number_unsigned); + return false; } - else if (j.m_value.number_unsigned <= std::numeric_limits::max()) + if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) { - // uint 64 - v.push_back(0xcf); - add_to_vector(v, 8, j.m_value.number_unsigned); + return false; } - break; + get_ignore_noop(); + key.clear(); } + } - case value_t::number_float: - { - // float 64 - v.push_back(0xcb); - const auto* helper = reinterpret_cast(&(j.m_value.number_float)); - for (size_t i = 0; i < 8; ++i) - { - v.push_back(helper[7 - i]); - } - break; - } + return sax->end_object(); + } - case value_t::string: - { - const auto N = j.m_value.string->size(); - if (N <= 31) - { - // fixstr - v.push_back(static_cast(0xa0 | N)); - } - else if (N <= 255) - { - // str 8 - v.push_back(0xd9); - add_to_vector(v, 1, N); - } - else if (N <= 65535) - { - // str 16 - v.push_back(0xda); - add_to_vector(v, 2, N); - } - else if (N <= 4294967295) - { - // str 32 - v.push_back(0xdb); - add_to_vector(v, 4, N); - } + // Note, no reader for UBJSON binary types is implemented because they do + // not exist - // append string - std::copy(j.m_value.string->begin(), j.m_value.string->end(), - std::back_inserter(v)); - break; - } + bool get_ubjson_high_precision_number() + { + // get size of following number string + std::size_t size{}; + auto res = get_ubjson_size_value(size); + if (JSON_HEDLEY_UNLIKELY(!res)) + { + return res; + } - case value_t::array: + // get number string + std::vector number_vector; + for (std::size_t i = 0; i < size; ++i) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "number"))) { - const auto N = j.m_value.array->size(); - if (N <= 15) - { - // fixarray - v.push_back(static_cast(0x90 | N)); - } - else if (N <= 0xffff) - { - // array 16 - v.push_back(0xdc); - add_to_vector(v, 2, N); - } - else if (N <= 0xffffffff) - { - // array 32 - v.push_back(0xdd); - add_to_vector(v, 4, N); - } - - // append each element - for (const auto& el : *j.m_value.array) - { - to_msgpack_internal(el, v); - } - break; + return false; } + number_vector.push_back(static_cast(current)); + } - case value_t::object: - { - const auto N = j.m_value.object->size(); - if (N <= 15) - { - // fixmap - v.push_back(static_cast(0x80 | (N & 0xf))); - } - else if (N <= 65535) - { - // map 16 - v.push_back(0xde); - add_to_vector(v, 2, N); - } - else if (N <= 4294967295) - { - // map 32 - v.push_back(0xdf); - add_to_vector(v, 4, N); - } + // parse number string + using ia_type = decltype(detail::input_adapter(number_vector)); + auto number_lexer = detail::lexer(detail::input_adapter(number_vector), false); + const auto result_number = number_lexer.scan(); + const auto number_string = number_lexer.get_token_string(); + const auto result_remainder = number_lexer.scan(); - // append each element - for (const auto& el : *j.m_value.object) - { - to_msgpack_internal(el.first, v); - to_msgpack_internal(el.second, v); - } - break; - } + using token_type = typename detail::lexer_base::token_type; + + if (JSON_HEDLEY_UNLIKELY(result_remainder != token_type::end_of_input)) + { + return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType())); + } + switch (result_number) + { + case token_type::value_integer: + return sax->number_integer(number_lexer.get_number_integer()); + case token_type::value_unsigned: + return sax->number_unsigned(number_lexer.get_number_unsigned()); + case token_type::value_float: + return sax->number_float(number_lexer.get_number_float(), std::move(number_string)); + case token_type::uninitialized: + case token_type::literal_true: + case token_type::literal_false: + case token_type::literal_null: + case token_type::value_string: + case token_type::begin_array: + case token_type::begin_object: + case token_type::end_array: + case token_type::end_object: + case token_type::name_separator: + case token_type::value_separator: + case token_type::parse_error: + case token_type::end_of_input: + case token_type::literal_or_value: default: - { - break; - } + return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType())); } } + /////////////////////// + // Utility functions // + /////////////////////// + /*! - @brief create a CBOR serialization of a given JSON value + @brief get next character from the input + This function provides the interface to the used input adapter. It does + not throw in case the input reached EOF, but returns a -'ve valued + `std::char_traits::eof()` in that case. + @return character read from the input + */ + char_int_type get() + { + ++chars_read; + return current = ia.get_character(); + } - This is a straightforward implementation of the CBOR specification. + /*! + @return character read from the input after ignoring all 'N' entries + */ + char_int_type get_ignore_noop() + { + do + { + get(); + } + while (current == 'N'); - @param[in] j JSON value to serialize - @param[in,out] v byte vector to write the serialization to + return current; + } - @sa https://tools.ietf.org/html/rfc7049 + /* + @brief read a number from the input + @tparam NumberType the type of the number + @param[in] format the current format (for diagnostics) + @param[out] result number of type @a NumberType + @return whether conversion completed + @note This function needs to respect the system's endianness, because + bytes in CBOR, MessagePack, and UBJSON are stored in network order + (big endian) and therefore need reordering on little endian systems. */ - static void to_cbor_internal(const basic_json& j, std::vector& v) + template + bool get_number(const input_format_t format, NumberType& result) { - switch (j.type()) + // step 1: read input into array with system's byte order + std::array vec{}; + for (std::size_t i = 0; i < sizeof(NumberType); ++i) { - case value_t::null: + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "number"))) { - v.push_back(0xf6); - break; + return false; } - case value_t::boolean: + // reverse byte order prior to conversion if necessary + if (is_little_endian != InputIsLittleEndian) { - v.push_back(j.m_value.boolean ? 0xf5 : 0xf4); - break; + vec[sizeof(NumberType) - i - 1] = static_cast(current); } + else + { + vec[i] = static_cast(current); // LCOV_EXCL_LINE + } + } - case value_t::number_integer: + // step 2: convert array into number of type T and return + std::memcpy(&result, vec.data(), sizeof(NumberType)); + return true; + } + + /*! + @brief create a string by reading characters from the input + @tparam NumberType the type of the number + @param[in] format the current format (for diagnostics) + @param[in] len number of characters to read + @param[out] result string created by reading @a len bytes + @return whether string creation completed + @note We can not reserve @a len bytes for the result, because @a len + may be too large. Usually, @ref unexpect_eof() detects the end of + the input before we run out of string memory. + */ + template + bool get_string(const input_format_t format, + const NumberType len, + string_t& result) + { + bool success = true; + for (NumberType i = 0; i < len; i++) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "string"))) { - if (j.m_value.number_integer >= 0) - { - // CBOR does not differentiate between positive signed - // integers and unsigned integers. Therefore, we used the - // code from the value_t::number_unsigned case here. - if (j.m_value.number_integer <= 0x17) - { - add_to_vector(v, 1, j.m_value.number_integer); - } - else if (j.m_value.number_integer <= std::numeric_limits::max()) - { - v.push_back(0x18); - // one-byte uint8_t - add_to_vector(v, 1, j.m_value.number_integer); - } - else if (j.m_value.number_integer <= std::numeric_limits::max()) - { - v.push_back(0x19); - // two-byte uint16_t - add_to_vector(v, 2, j.m_value.number_integer); - } - else if (j.m_value.number_integer <= std::numeric_limits::max()) - { - v.push_back(0x1a); - // four-byte uint32_t - add_to_vector(v, 4, j.m_value.number_integer); - } - else - { - v.push_back(0x1b); - // eight-byte uint64_t - add_to_vector(v, 8, j.m_value.number_integer); - } - } - else - { - // The conversions below encode the sign in the first - // byte, and the value is converted to a positive number. - const auto positive_number = -1 - j.m_value.number_integer; - if (j.m_value.number_integer >= -24) - { - v.push_back(static_cast(0x20 + positive_number)); - } - else if (positive_number <= std::numeric_limits::max()) - { - // int 8 - v.push_back(0x38); - add_to_vector(v, 1, positive_number); - } - else if (positive_number <= std::numeric_limits::max()) - { - // int 16 - v.push_back(0x39); - add_to_vector(v, 2, positive_number); - } - else if (positive_number <= std::numeric_limits::max()) - { - // int 32 - v.push_back(0x3a); - add_to_vector(v, 4, positive_number); - } - else - { - // int 64 - v.push_back(0x3b); - add_to_vector(v, 8, positive_number); - } - } - break; - } - - case value_t::number_unsigned: - { - if (j.m_value.number_unsigned <= 0x17) - { - v.push_back(static_cast(j.m_value.number_unsigned)); - } - else if (j.m_value.number_unsigned <= 0xff) - { - v.push_back(0x18); - // one-byte uint8_t - add_to_vector(v, 1, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= 0xffff) - { - v.push_back(0x19); - // two-byte uint16_t - add_to_vector(v, 2, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= 0xffffffff) - { - v.push_back(0x1a); - // four-byte uint32_t - add_to_vector(v, 4, j.m_value.number_unsigned); - } - else if (j.m_value.number_unsigned <= 0xffffffffffffffff) - { - v.push_back(0x1b); - // eight-byte uint64_t - add_to_vector(v, 8, j.m_value.number_unsigned); - } + success = false; break; } + result.push_back(static_cast(current)); + } + return success; + } - case value_t::number_float: + /*! + @brief create a byte array by reading bytes from the input + @tparam NumberType the type of the number + @param[in] format the current format (for diagnostics) + @param[in] len number of bytes to read + @param[out] result byte array created by reading @a len bytes + @return whether byte array creation completed + @note We can not reserve @a len bytes for the result, because @a len + may be too large. Usually, @ref unexpect_eof() detects the end of + the input before we run out of memory. + */ + template + bool get_binary(const input_format_t format, + const NumberType len, + binary_t& result) + { + bool success = true; + for (NumberType i = 0; i < len; i++) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "binary"))) { - // Double-Precision Float - v.push_back(0xfb); - const auto* helper = reinterpret_cast(&(j.m_value.number_float)); - for (size_t i = 0; i < 8; ++i) - { - v.push_back(helper[7 - i]); - } + success = false; break; } + result.push_back(static_cast(current)); + } + return success; + } - case value_t::string: - { - const auto N = j.m_value.string->size(); - if (N <= 0x17) - { - v.push_back(0x60 + static_cast(N)); // 1 byte for string + size - } - else if (N <= 0xff) - { - v.push_back(0x78); // one-byte uint8_t for N - add_to_vector(v, 1, N); - } - else if (N <= 0xffff) - { - v.push_back(0x79); // two-byte uint16_t for N - add_to_vector(v, 2, N); - } - else if (N <= 0xffffffff) - { - v.push_back(0x7a); // four-byte uint32_t for N - add_to_vector(v, 4, N); - } - // LCOV_EXCL_START - else if (N <= 0xffffffffffffffff) - { - v.push_back(0x7b); // eight-byte uint64_t for N - add_to_vector(v, 8, N); - } - // LCOV_EXCL_STOP + /*! + @param[in] format the current format (for diagnostics) + @param[in] context further context information (for diagnostics) + @return whether the last read character is not EOF + */ + JSON_HEDLEY_NON_NULL(3) + bool unexpect_eof(const input_format_t format, const char* context) const + { + if (JSON_HEDLEY_UNLIKELY(current == std::char_traits::eof())) + { + return sax->parse_error(chars_read, "", + parse_error::create(110, chars_read, exception_message(format, "unexpected end of input", context), BasicJsonType())); + } + return true; + } - // append string - std::copy(j.m_value.string->begin(), j.m_value.string->end(), - std::back_inserter(v)); - break; - } + /*! + @return a string representation of the last read byte + */ + std::string get_token_string() const + { + std::array cr{{}}; + static_cast((std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast(current))); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + return std::string{cr.data()}; + } - case value_t::array: - { - const auto N = j.m_value.array->size(); - if (N <= 0x17) - { - v.push_back(0x80 + static_cast(N)); // 1 byte for array + size - } - else if (N <= 0xff) - { - v.push_back(0x98); // one-byte uint8_t for N - add_to_vector(v, 1, N); - } - else if (N <= 0xffff) - { - v.push_back(0x99); // two-byte uint16_t for N - add_to_vector(v, 2, N); - } - else if (N <= 0xffffffff) - { - v.push_back(0x9a); // four-byte uint32_t for N - add_to_vector(v, 4, N); - } - // LCOV_EXCL_START - else if (N <= 0xffffffffffffffff) - { - v.push_back(0x9b); // eight-byte uint64_t for N - add_to_vector(v, 8, N); - } - // LCOV_EXCL_STOP + /*! + @param[in] format the current format + @param[in] detail a detailed error message + @param[in] context further context information + @return a message string to use in the parse_error exceptions + */ + std::string exception_message(const input_format_t format, + const std::string& detail, + const std::string& context) const + { + std::string error_msg = "syntax error while parsing "; - // append each element - for (const auto& el : *j.m_value.array) - { - to_cbor_internal(el, v); - } + switch (format) + { + case input_format_t::cbor: + error_msg += "CBOR"; break; - } - case value_t::object: - { - const auto N = j.m_value.object->size(); - if (N <= 0x17) - { - v.push_back(0xa0 + static_cast(N)); // 1 byte for object + size - } - else if (N <= 0xff) - { - v.push_back(0xb8); - add_to_vector(v, 1, N); // one-byte uint8_t for N - } - else if (N <= 0xffff) - { - v.push_back(0xb9); - add_to_vector(v, 2, N); // two-byte uint16_t for N - } - else if (N <= 0xffffffff) - { - v.push_back(0xba); - add_to_vector(v, 4, N); // four-byte uint32_t for N - } - // LCOV_EXCL_START - else if (N <= 0xffffffffffffffff) - { - v.push_back(0xbb); - add_to_vector(v, 8, N); // eight-byte uint64_t for N - } - // LCOV_EXCL_STOP + case input_format_t::msgpack: + error_msg += "MessagePack"; + break; - // append each element - for (const auto& el : *j.m_value.object) - { - to_cbor_internal(el.first, v); - to_cbor_internal(el.second, v); - } + case input_format_t::ubjson: + error_msg += "UBJSON"; break; - } - default: - { + case input_format_t::bson: + error_msg += "BSON"; break; - } + + case input_format_t::json: // LCOV_EXCL_LINE + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE } + + return error_msg + " " + context + ": " + detail; } + private: + /// input adapter + InputAdapterType ia; - /* - @brief checks if given lengths do not exceed the size of a given vector + /// the current character + char_int_type current = std::char_traits::eof(); - To secure the access to the byte vector during CBOR/MessagePack - deserialization, bytes are copied from the vector into buffers. This - function checks if the number of bytes to copy (@a len) does not exceed - the size @s size of the vector. Additionally, an @a offset is given from - where to start reading the bytes. + /// the number of characters read + std::size_t chars_read = 0; - This function checks whether reading the bytes is safe; that is, offset is - a valid index in the vector, offset+len + /// whether we can assume little endianness + const bool is_little_endian = little_endianness(); - @param[in] size size of the byte vector - @param[in] len number of bytes to read - @param[in] offset offset where to start reading + /// the SAX parser + json_sax_t* sax = nullptr; +}; +} // namespace detail +} // namespace nlohmann - vec: x x x x x X X X X X - ^ ^ ^ - 0 offset len +// #include - @throws out_of_range if `len > v.size()` - */ - static void check_length(const size_t size, const size_t len, const size_t offset) - { - // simple case: requested length is greater than the vector's length - if (len > size or offset > size) - { - JSON_THROW(std::out_of_range("len out of range")); - } +// #include - // second case: adding offset would result in overflow - if ((size > (std::numeric_limits::max() - offset))) - { - JSON_THROW(std::out_of_range("len+offset out of range")); - } +// #include - // last case: reading past the end of the vector - if (len + offset > size) - { - JSON_THROW(std::out_of_range("len+offset out of range")); - } - } - /*! - @brief create a JSON value from a given MessagePack vector +#include // isfinite +#include // uint8_t +#include // function +#include // string +#include // move +#include // vector + +// #include + +// #include + +// #include + +// #include + +// #include + +// #include - @param[in] v MessagePack serialization - @param[in] idx byte index to start reading from @a v +// #include - @return deserialized JSON value - @throw std::invalid_argument if unsupported features from MessagePack were - used in the given vector @a v or if the input is not valid MessagePack - @throw std::out_of_range if the given vector ends prematurely +namespace nlohmann +{ +namespace detail +{ +//////////// +// parser // +//////////// + +enum class parse_event_t : std::uint8_t +{ + /// the parser read `{` and started to process a JSON object + object_start, + /// the parser read `}` and finished processing a JSON object + object_end, + /// the parser read `[` and started to process a JSON array + array_start, + /// the parser read `]` and finished processing a JSON array + array_end, + /// the parser read a key of a value in an object + key, + /// the parser finished reading a JSON value + value +}; + +template +using parser_callback_t = + std::function; + +/*! +@brief syntax analysis +This class implements a recursive descent parser. +*/ +template +class parser +{ + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using lexer_t = lexer; + using token_type = typename lexer_t::token_type; + + public: + /// a parser reading from an input adapter + explicit parser(InputAdapterType&& adapter, + const parser_callback_t cb = nullptr, + const bool allow_exceptions_ = true, + const bool skip_comments = false) + : callback(cb) + , m_lexer(std::move(adapter), skip_comments) + , allow_exceptions(allow_exceptions_) + { + // read first token + get_token(); + } - @sa https://github.com/msgpack/msgpack/blob/master/spec.md + /*! + @brief public parser interface + @param[in] strict whether to expect the last token to be EOF + @param[in,out] result parsed JSON value + @throw parse_error.101 in case of an unexpected token + @throw parse_error.102 if to_unicode fails or surrogate error + @throw parse_error.103 if to_unicode fails */ - static basic_json from_msgpack_internal(const std::vector& v, size_t& idx) + void parse(const bool strict, BasicJsonType& result) { - // make sure reading 1 byte is safe - check_length(v.size(), 1, idx); + if (callback) + { + json_sax_dom_callback_parser sdp(result, callback, allow_exceptions); + sax_parse_internal(&sdp); - // store and increment index - const size_t current_idx = idx++; + // in strict mode, input must be completely read + if (strict && (get_token() != token_type::end_of_input)) + { + sdp.parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), + exception_message(token_type::end_of_input, "value"), BasicJsonType())); + } - if (v[current_idx] <= 0xbf) - { - if (v[current_idx] <= 0x7f) // positive fixint + // in case of an error, return discarded value + if (sdp.is_errored()) { - return v[current_idx]; + result = value_t::discarded; + return; } - if (v[current_idx] <= 0x8f) // fixmap + + // set top-level value to null if it was discarded by the callback + // function + if (result.is_discarded()) { - basic_json result = value_t::object; - const size_t len = v[current_idx] & 0x0f; - for (size_t i = 0; i < len; ++i) - { - std::string key = from_msgpack_internal(v, idx); - result[key] = from_msgpack_internal(v, idx); - } - return result; + result = nullptr; } - else if (v[current_idx] <= 0x9f) // fixarray + } + else + { + json_sax_dom_parser sdp(result, allow_exceptions); + sax_parse_internal(&sdp); + + // in strict mode, input must be completely read + if (strict && (get_token() != token_type::end_of_input)) { - basic_json result = value_t::array; - const size_t len = v[current_idx] & 0x0f; - for (size_t i = 0; i < len; ++i) - { - result.push_back(from_msgpack_internal(v, idx)); - } - return result; + sdp.parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input, "value"), BasicJsonType())); } - else // fixstr + + // in case of an error, return discarded value + if (sdp.is_errored()) { - const size_t len = v[current_idx] & 0x1f; - const size_t offset = current_idx + 1; - idx += len; // skip content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); + result = value_t::discarded; + return; } } - else if (v[current_idx] >= 0xe0) // negative fixint + + result.assert_invariant(); + } + + /*! + @brief public accept interface + @param[in] strict whether to expect the last token to be EOF + @return whether the input is a proper JSON text + */ + bool accept(const bool strict = true) + { + json_sax_acceptor sax_acceptor; + return sax_parse(&sax_acceptor, strict); + } + + template + JSON_HEDLEY_NON_NULL(2) + bool sax_parse(SAX* sax, const bool strict = true) + { + (void)detail::is_sax_static_asserts {}; + const bool result = sax_parse_internal(sax); + + // strict mode: next byte must be EOF + if (result && strict && (get_token() != token_type::end_of_input)) { - return static_cast(v[current_idx]); + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input, "value"), BasicJsonType())); } - else + + return result; + } + + private: + template + JSON_HEDLEY_NON_NULL(2) + bool sax_parse_internal(SAX* sax) + { + // stack to remember the hierarchy of structured values we are parsing + // true = array; false = object + std::vector states; + // value to avoid a goto (see comment where set to true) + bool skip_to_state_evaluation = false; + + while (true) { - switch (v[current_idx]) + if (!skip_to_state_evaluation) { - case 0xc0: // nil + // invariant: get_token() was called before each iteration + switch (last_token) { - return value_t::null; - } + case token_type::begin_object: + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(static_cast(-1)))) + { + return false; + } - case 0xc2: // false - { - return false; - } + // closing } -> we are done + if (get_token() == token_type::end_object) + { + if (JSON_HEDLEY_UNLIKELY(!sax->end_object())) + { + return false; + } + break; + } - case 0xc3: // true - { - return true; - } + // parse key + if (JSON_HEDLEY_UNLIKELY(last_token != token_type::value_string)) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string, "object key"), BasicJsonType())); + } + if (JSON_HEDLEY_UNLIKELY(!sax->key(m_lexer.get_string()))) + { + return false; + } - case 0xca: // float 32 - { - // copy bytes in reverse order into the double variable - float res; - for (size_t byte = 0; byte < sizeof(float); ++byte) - { - reinterpret_cast(&res)[sizeof(float) - byte - 1] = v.at(current_idx + 1 + byte); + // parse separator (:) + if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator)) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator, "object separator"), BasicJsonType())); + } + + // remember we are now inside an object + states.push_back(false); + + // parse values + get_token(); + continue; } - idx += sizeof(float); // skip content bytes - return res; - } - case 0xcb: // float 64 - { - // copy bytes in reverse order into the double variable - double res; - for (size_t byte = 0; byte < sizeof(double); ++byte) + case token_type::begin_array: { - reinterpret_cast(&res)[sizeof(double) - byte - 1] = v.at(current_idx + 1 + byte); - } - idx += sizeof(double); // skip content bytes - return res; - } + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(static_cast(-1)))) + { + return false; + } - case 0xcc: // uint 8 - { - idx += 1; // skip content byte - return get_from_vector(v, current_idx); - } + // closing ] -> we are done + if (get_token() == token_type::end_array) + { + if (JSON_HEDLEY_UNLIKELY(!sax->end_array())) + { + return false; + } + break; + } - case 0xcd: // uint 16 - { - idx += 2; // skip 2 content bytes - return get_from_vector(v, current_idx); - } + // remember we are now inside an array + states.push_back(true); - case 0xce: // uint 32 - { - idx += 4; // skip 4 content bytes - return get_from_vector(v, current_idx); - } - - case 0xcf: // uint 64 - { - idx += 8; // skip 8 content bytes - return get_from_vector(v, current_idx); - } + // parse values (no need to call get_token) + continue; + } - case 0xd0: // int 8 - { - idx += 1; // skip content byte - return get_from_vector(v, current_idx); - } + case token_type::value_float: + { + const auto res = m_lexer.get_number_float(); - case 0xd1: // int 16 - { - idx += 2; // skip 2 content bytes - return get_from_vector(v, current_idx); - } + if (JSON_HEDLEY_UNLIKELY(!std::isfinite(res))) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + out_of_range::create(406, "number overflow parsing '" + m_lexer.get_token_string() + "'", BasicJsonType())); + } - case 0xd2: // int 32 - { - idx += 4; // skip 4 content bytes - return get_from_vector(v, current_idx); - } + if (JSON_HEDLEY_UNLIKELY(!sax->number_float(res, m_lexer.get_string()))) + { + return false; + } - case 0xd3: // int 64 - { - idx += 8; // skip 8 content bytes - return get_from_vector(v, current_idx); - } + break; + } - case 0xd9: // str 8 - { - const auto len = static_cast(get_from_vector(v, current_idx)); - const size_t offset = current_idx + 2; - idx += len + 1; // skip size byte + content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); - } + case token_type::literal_false: + { + if (JSON_HEDLEY_UNLIKELY(!sax->boolean(false))) + { + return false; + } + break; + } - case 0xda: // str 16 - { - const auto len = static_cast(get_from_vector(v, current_idx)); - const size_t offset = current_idx + 3; - idx += len + 2; // skip 2 size bytes + content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); - } + case token_type::literal_null: + { + if (JSON_HEDLEY_UNLIKELY(!sax->null())) + { + return false; + } + break; + } - case 0xdb: // str 32 - { - const auto len = static_cast(get_from_vector(v, current_idx)); - const size_t offset = current_idx + 5; - idx += len + 4; // skip 4 size bytes + content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); - } + case token_type::literal_true: + { + if (JSON_HEDLEY_UNLIKELY(!sax->boolean(true))) + { + return false; + } + break; + } - case 0xdc: // array 16 - { - basic_json result = value_t::array; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 2; // skip 2 size bytes - for (size_t i = 0; i < len; ++i) + case token_type::value_integer: { - result.push_back(from_msgpack_internal(v, idx)); + if (JSON_HEDLEY_UNLIKELY(!sax->number_integer(m_lexer.get_number_integer()))) + { + return false; + } + break; } - return result; - } - case 0xdd: // array 32 - { - basic_json result = value_t::array; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 4; // skip 4 size bytes - for (size_t i = 0; i < len; ++i) + case token_type::value_string: { - result.push_back(from_msgpack_internal(v, idx)); + if (JSON_HEDLEY_UNLIKELY(!sax->string(m_lexer.get_string()))) + { + return false; + } + break; } - return result; - } - case 0xde: // map 16 - { - basic_json result = value_t::object; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 2; // skip 2 size bytes - for (size_t i = 0; i < len; ++i) + case token_type::value_unsigned: { - std::string key = from_msgpack_internal(v, idx); - result[key] = from_msgpack_internal(v, idx); + if (JSON_HEDLEY_UNLIKELY(!sax->number_unsigned(m_lexer.get_number_unsigned()))) + { + return false; + } + break; } - return result; - } - case 0xdf: // map 32 - { - basic_json result = value_t::object; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 4; // skip 4 size bytes - for (size_t i = 0; i < len; ++i) + case token_type::parse_error: { - std::string key = from_msgpack_internal(v, idx); - result[key] = from_msgpack_internal(v, idx); + // using "uninitialized" to avoid "expected" message + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::uninitialized, "value"), BasicJsonType())); } - return result; - } - default: - { - JSON_THROW(std::invalid_argument("error parsing a msgpack @ " + std::to_string(current_idx) + ": " + std::to_string(static_cast(v[current_idx])))); + case token_type::uninitialized: + case token_type::end_array: + case token_type::end_object: + case token_type::name_separator: + case token_type::value_separator: + case token_type::end_of_input: + case token_type::literal_or_value: + default: // the last token was unexpected + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::literal_or_value, "value"), BasicJsonType())); + } } } - } - } - - /*! - @brief create a JSON value from a given CBOR vector - - @param[in] v CBOR serialization - @param[in] idx byte index to start reading from @a v - - @return deserialized JSON value - - @throw std::invalid_argument if unsupported features from CBOR were used in - the given vector @a v or if the input is not valid CBOR - @throw std::out_of_range if the given vector ends prematurely - - @sa https://tools.ietf.org/html/rfc7049 - */ - static basic_json from_cbor_internal(const std::vector& v, size_t& idx) - { - // store and increment index - const size_t current_idx = idx++; - - switch (v.at(current_idx)) - { - // Integer 0x00..0x17 (0..23) - case 0x00: - case 0x01: - case 0x02: - case 0x03: - case 0x04: - case 0x05: - case 0x06: - case 0x07: - case 0x08: - case 0x09: - case 0x0a: - case 0x0b: - case 0x0c: - case 0x0d: - case 0x0e: - case 0x0f: - case 0x10: - case 0x11: - case 0x12: - case 0x13: - case 0x14: - case 0x15: - case 0x16: - case 0x17: - { - return v[current_idx]; - } - - case 0x18: // Unsigned integer (one-byte uint8_t follows) - { - idx += 1; // skip content byte - return get_from_vector(v, current_idx); - } - - case 0x19: // Unsigned integer (two-byte uint16_t follows) - { - idx += 2; // skip 2 content bytes - return get_from_vector(v, current_idx); - } - - case 0x1a: // Unsigned integer (four-byte uint32_t follows) - { - idx += 4; // skip 4 content bytes - return get_from_vector(v, current_idx); - } - - case 0x1b: // Unsigned integer (eight-byte uint64_t follows) - { - idx += 8; // skip 8 content bytes - return get_from_vector(v, current_idx); - } - - // Negative integer -1-0x00..-1-0x17 (-1..-24) - case 0x20: - case 0x21: - case 0x22: - case 0x23: - case 0x24: - case 0x25: - case 0x26: - case 0x27: - case 0x28: - case 0x29: - case 0x2a: - case 0x2b: - case 0x2c: - case 0x2d: - case 0x2e: - case 0x2f: - case 0x30: - case 0x31: - case 0x32: - case 0x33: - case 0x34: - case 0x35: - case 0x36: - case 0x37: - { - return static_cast(0x20 - 1 - v[current_idx]); - } - - case 0x38: // Negative integer (one-byte uint8_t follows) - { - idx += 1; // skip content byte - // must be uint8_t ! - return static_cast(-1) - get_from_vector(v, current_idx); - } - - case 0x39: // Negative integer -1-n (two-byte uint16_t follows) - { - idx += 2; // skip 2 content bytes - return static_cast(-1) - get_from_vector(v, current_idx); - } - - case 0x3a: // Negative integer -1-n (four-byte uint32_t follows) - { - idx += 4; // skip 4 content bytes - return static_cast(-1) - get_from_vector(v, current_idx); - } - - case 0x3b: // Negative integer -1-n (eight-byte uint64_t follows) - { - idx += 8; // skip 8 content bytes - return static_cast(-1) - static_cast(get_from_vector(v, current_idx)); - } - - // UTF-8 string (0x00..0x17 bytes follow) - case 0x60: - case 0x61: - case 0x62: - case 0x63: - case 0x64: - case 0x65: - case 0x66: - case 0x67: - case 0x68: - case 0x69: - case 0x6a: - case 0x6b: - case 0x6c: - case 0x6d: - case 0x6e: - case 0x6f: - case 0x70: - case 0x71: - case 0x72: - case 0x73: - case 0x74: - case 0x75: - case 0x76: - case 0x77: - { - const auto len = static_cast(v[current_idx] - 0x60); - const size_t offset = current_idx + 1; - idx += len; // skip content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); - } - - case 0x78: // UTF-8 string (one-byte uint8_t for n follows) - { - const auto len = static_cast(get_from_vector(v, current_idx)); - const size_t offset = current_idx + 2; - idx += len + 1; // skip size byte + content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); - } - - case 0x79: // UTF-8 string (two-byte uint16_t for n follow) - { - const auto len = static_cast(get_from_vector(v, current_idx)); - const size_t offset = current_idx + 3; - idx += len + 2; // skip 2 size bytes + content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); - } - - case 0x7a: // UTF-8 string (four-byte uint32_t for n follow) + else { - const auto len = static_cast(get_from_vector(v, current_idx)); - const size_t offset = current_idx + 5; - idx += len + 4; // skip 4 size bytes + content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); + skip_to_state_evaluation = false; } - case 0x7b: // UTF-8 string (eight-byte uint64_t for n follow) + // we reached this line after we successfully parsed a value + if (states.empty()) { - const auto len = static_cast(get_from_vector(v, current_idx)); - const size_t offset = current_idx + 9; - idx += len + 8; // skip 8 size bytes + content bytes - check_length(v.size(), len, offset); - return std::string(reinterpret_cast(v.data()) + offset, len); + // empty stack: we reached the end of the hierarchy: done + return true; } - case 0x7f: // UTF-8 string (indefinite length) + if (states.back()) // array { - std::string result; - while (v.at(idx) != 0xff) + // comma -> next value + if (get_token() == token_type::value_separator) { - string_t s = from_cbor_internal(v, idx); - result += s; + // parse a new value + get_token(); + continue; } - // skip break byte (0xFF) - idx += 1; - return result; - } - // array (0x00..0x17 data items follow) - case 0x80: - case 0x81: - case 0x82: - case 0x83: - case 0x84: - case 0x85: - case 0x86: - case 0x87: - case 0x88: - case 0x89: - case 0x8a: - case 0x8b: - case 0x8c: - case 0x8d: - case 0x8e: - case 0x8f: - case 0x90: - case 0x91: - case 0x92: - case 0x93: - case 0x94: - case 0x95: - case 0x96: - case 0x97: - { - basic_json result = value_t::array; - const auto len = static_cast(v[current_idx] - 0x80); - for (size_t i = 0; i < len; ++i) + // closing ] + if (JSON_HEDLEY_LIKELY(last_token == token_type::end_array)) { - result.push_back(from_cbor_internal(v, idx)); - } - return result; - } + if (JSON_HEDLEY_UNLIKELY(!sax->end_array())) + { + return false; + } - case 0x98: // array (one-byte uint8_t for n follows) - { - basic_json result = value_t::array; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 1; // skip 1 size byte - for (size_t i = 0; i < len; ++i) - { - result.push_back(from_cbor_internal(v, idx)); + // We are done with this array. Before we can parse a + // new value, we need to evaluate the new state first. + // By setting skip_to_state_evaluation to false, we + // are effectively jumping to the beginning of this if. + JSON_ASSERT(!states.empty()); + states.pop_back(); + skip_to_state_evaluation = true; + continue; } - return result; - } - case 0x99: // array (two-byte uint16_t for n follow) - { - basic_json result = value_t::array; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 2; // skip 4 size bytes - for (size_t i = 0; i < len; ++i) - { - result.push_back(from_cbor_internal(v, idx)); - } - return result; + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_array, "array"), BasicJsonType())); } - case 0x9a: // array (four-byte uint32_t for n follow) - { - basic_json result = value_t::array; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 4; // skip 4 size bytes - for (size_t i = 0; i < len; ++i) - { - result.push_back(from_cbor_internal(v, idx)); - } - return result; - } + // states.back() is false -> object - case 0x9b: // array (eight-byte uint64_t for n follow) + // comma -> next value + if (get_token() == token_type::value_separator) { - basic_json result = value_t::array; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 8; // skip 8 size bytes - for (size_t i = 0; i < len; ++i) + // parse key + if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::value_string)) { - result.push_back(from_cbor_internal(v, idx)); + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string, "object key"), BasicJsonType())); } - return result; - } - case 0x9f: // array (indefinite length) - { - basic_json result = value_t::array; - while (v.at(idx) != 0xff) + if (JSON_HEDLEY_UNLIKELY(!sax->key(m_lexer.get_string()))) { - result.push_back(from_cbor_internal(v, idx)); + return false; } - // skip break byte (0xFF) - idx += 1; - return result; - } - // map (0x00..0x17 pairs of data items follow) - case 0xa0: - case 0xa1: - case 0xa2: - case 0xa3: - case 0xa4: - case 0xa5: - case 0xa6: - case 0xa7: - case 0xa8: - case 0xa9: - case 0xaa: - case 0xab: - case 0xac: - case 0xad: - case 0xae: - case 0xaf: - case 0xb0: - case 0xb1: - case 0xb2: - case 0xb3: - case 0xb4: - case 0xb5: - case 0xb6: - case 0xb7: - { - basic_json result = value_t::object; - const auto len = static_cast(v[current_idx] - 0xa0); - for (size_t i = 0; i < len; ++i) + // parse separator (:) + if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator)) { - std::string key = from_cbor_internal(v, idx); - result[key] = from_cbor_internal(v, idx); + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator, "object separator"), BasicJsonType())); } - return result; - } - case 0xb8: // map (one-byte uint8_t for n follows) - { - basic_json result = value_t::object; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 1; // skip 1 size byte - for (size_t i = 0; i < len; ++i) - { - std::string key = from_cbor_internal(v, idx); - result[key] = from_cbor_internal(v, idx); - } - return result; + // parse values + get_token(); + continue; } - case 0xb9: // map (two-byte uint16_t for n follow) + // closing } + if (JSON_HEDLEY_LIKELY(last_token == token_type::end_object)) { - basic_json result = value_t::object; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 2; // skip 2 size bytes - for (size_t i = 0; i < len; ++i) + if (JSON_HEDLEY_UNLIKELY(!sax->end_object())) { - std::string key = from_cbor_internal(v, idx); - result[key] = from_cbor_internal(v, idx); + return false; } - return result; - } - case 0xba: // map (four-byte uint32_t for n follow) - { - basic_json result = value_t::object; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 4; // skip 4 size bytes - for (size_t i = 0; i < len; ++i) - { - std::string key = from_cbor_internal(v, idx); - result[key] = from_cbor_internal(v, idx); - } - return result; + // We are done with this object. Before we can parse a + // new value, we need to evaluate the new state first. + // By setting skip_to_state_evaluation to false, we + // are effectively jumping to the beginning of this if. + JSON_ASSERT(!states.empty()); + states.pop_back(); + skip_to_state_evaluation = true; + continue; } - case 0xbb: // map (eight-byte uint64_t for n follow) - { - basic_json result = value_t::object; - const auto len = static_cast(get_from_vector(v, current_idx)); - idx += 8; // skip 8 size bytes - for (size_t i = 0; i < len; ++i) - { - std::string key = from_cbor_internal(v, idx); - result[key] = from_cbor_internal(v, idx); - } - return result; - } + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_object, "object"), BasicJsonType())); + } + } - case 0xbf: // map (indefinite length) - { - basic_json result = value_t::object; - while (v.at(idx) != 0xff) - { - std::string key = from_cbor_internal(v, idx); - result[key] = from_cbor_internal(v, idx); - } - // skip break byte (0xFF) - idx += 1; - return result; - } + /// get next token from lexer + token_type get_token() + { + return last_token = m_lexer.scan(); + } - case 0xf4: // false - { - return false; - } + std::string exception_message(const token_type expected, const std::string& context) + { + std::string error_msg = "syntax error "; - case 0xf5: // true - { - return true; - } + if (!context.empty()) + { + error_msg += "while parsing " + context + " "; + } - case 0xf6: // null - { - return value_t::null; - } + error_msg += "- "; - case 0xf9: // Half-Precision Float (two-byte IEEE 754) - { - idx += 2; // skip two content bytes + if (last_token == token_type::parse_error) + { + error_msg += std::string(m_lexer.get_error_message()) + "; last read: '" + + m_lexer.get_token_string() + "'"; + } + else + { + error_msg += "unexpected " + std::string(lexer_t::token_type_name(last_token)); + } - // code from RFC 7049, Appendix D, Figure 3: - // As half-precision floating-point numbers were only added to - // IEEE 754 in 2008, today's programming platforms often still - // only have limited support for them. It is very easy to - // include at least decoding support for them even without such - // support. An example of a small decoder for half-precision - // floating-point numbers in the C language is shown in Fig. 3. - const int half = (v.at(current_idx + 1) << 8) + v.at(current_idx + 2); - const int exp = (half >> 10) & 0x1f; - const int mant = half & 0x3ff; - double val; - if (exp == 0) - { - val = std::ldexp(mant, -24); - } - else if (exp != 31) - { - val = std::ldexp(mant + 1024, exp - 25); - } - else - { - val = mant == 0 - ? std::numeric_limits::infinity() - : std::numeric_limits::quiet_NaN(); - } - return (half & 0x8000) != 0 ? -val : val; - } + if (expected != token_type::uninitialized) + { + error_msg += "; expected " + std::string(lexer_t::token_type_name(expected)); + } - case 0xfa: // Single-Precision Float (four-byte IEEE 754) - { - // copy bytes in reverse order into the float variable - float res; - for (size_t byte = 0; byte < sizeof(float); ++byte) - { - reinterpret_cast(&res)[sizeof(float) - byte - 1] = v.at(current_idx + 1 + byte); - } - idx += sizeof(float); // skip content bytes - return res; - } + return error_msg; + } - case 0xfb: // Double-Precision Float (eight-byte IEEE 754) - { - // copy bytes in reverse order into the double variable - double res; - for (size_t byte = 0; byte < sizeof(double); ++byte) - { - reinterpret_cast(&res)[sizeof(double) - byte - 1] = v.at(current_idx + 1 + byte); - } - idx += sizeof(double); // skip content bytes - return res; - } + private: + /// callback function + const parser_callback_t callback = nullptr; + /// the type of the last read token + token_type last_token = token_type::uninitialized; + /// the lexer + lexer_t m_lexer; + /// whether to throw exceptions in case of errors + const bool allow_exceptions = true; +}; - default: // anything else (0xFF is handled inside the other types) - { - JSON_THROW(std::invalid_argument("error parsing a CBOR @ " + std::to_string(current_idx) + ": " + std::to_string(static_cast(v[current_idx])))); - } - } - } +} // namespace detail +} // namespace nlohmann - public: - /*! - @brief create a MessagePack serialization of a given JSON value +// #include - Serializes a given JSON value @a j to a byte vector using the MessagePack - serialization format. MessagePack is a binary serialization format which - aims to be more compact than JSON itself, yet more efficient to parse. - @param[in] j JSON value to serialize - @return MessagePack serialization as byte vector +// #include - @complexity Linear in the size of the JSON value @a j. - @liveexample{The example shows the serialization of a JSON value to a byte - vector in MessagePack format.,to_msgpack} +#include // ptrdiff_t +#include // numeric_limits - @sa http://msgpack.org - @sa @ref from_msgpack(const std::vector&, const size_t) for the - analogous deserialization - @sa @ref to_cbor(const basic_json& for the related CBOR format +// #include - @since version 2.0.9 - */ - static std::vector to_msgpack(const basic_json& j) - { - std::vector result; - to_msgpack_internal(j, result); - return result; - } - /*! - @brief create a JSON value from a byte vector in MessagePack format +namespace nlohmann +{ +namespace detail +{ +/* +@brief an iterator for primitive JSON types +This class models an iterator for primitive JSON types (boolean, number, +string). It's only purpose is to allow the iterator/const_iterator classes +to "iterate" over primitive values. Internally, the iterator is modeled by +a `difference_type` variable. Value begin_value (`0`) models the begin, +end_value (`1`) models past the end. +*/ +class primitive_iterator_t +{ + private: + using difference_type = std::ptrdiff_t; + static constexpr difference_type begin_value = 0; + static constexpr difference_type end_value = begin_value + 1; - Deserializes a given byte vector @a v to a JSON value using the MessagePack - serialization format. + JSON_PRIVATE_UNLESS_TESTED: + /// iterator as signed integer type + difference_type m_it = (std::numeric_limits::min)(); - @param[in] v a byte vector in MessagePack format - @param[in] start_index the index to start reading from @a v (0 by default) - @return deserialized JSON value + public: + constexpr difference_type get_value() const noexcept + { + return m_it; + } - @throw std::invalid_argument if unsupported features from MessagePack were - used in the given vector @a v or if the input is not valid MessagePack - @throw std::out_of_range if the given vector ends prematurely + /// set iterator to a defined beginning + void set_begin() noexcept + { + m_it = begin_value; + } - @complexity Linear in the size of the byte vector @a v. + /// set iterator to a defined past the end + void set_end() noexcept + { + m_it = end_value; + } - @liveexample{The example shows the deserialization of a byte vector in - MessagePack format to a JSON value.,from_msgpack} + /// return whether the iterator can be dereferenced + constexpr bool is_begin() const noexcept + { + return m_it == begin_value; + } - @sa http://msgpack.org - @sa @ref to_msgpack(const basic_json&) for the analogous serialization - @sa @ref from_cbor(const std::vector&, const size_t) for the - related CBOR format + /// return whether the iterator is at end + constexpr bool is_end() const noexcept + { + return m_it == end_value; + } - @since version 2.0.9, parameter @a start_index since 2.1.1 - */ - static basic_json from_msgpack(const std::vector& v, - const size_t start_index = 0) + friend constexpr bool operator==(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept { - size_t i = start_index; - return from_msgpack_internal(v, i); + return lhs.m_it == rhs.m_it; } - /*! - @brief create a MessagePack serialization of a given JSON value + friend constexpr bool operator<(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept + { + return lhs.m_it < rhs.m_it; + } - Serializes a given JSON value @a j to a byte vector using the CBOR (Concise - Binary Object Representation) serialization format. CBOR is a binary - serialization format which aims to be more compact than JSON itself, yet - more efficient to parse. + primitive_iterator_t operator+(difference_type n) noexcept + { + auto result = *this; + result += n; + return result; + } - @param[in] j JSON value to serialize - @return MessagePack serialization as byte vector + friend constexpr difference_type operator-(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept + { + return lhs.m_it - rhs.m_it; + } - @complexity Linear in the size of the JSON value @a j. + primitive_iterator_t& operator++() noexcept + { + ++m_it; + return *this; + } - @liveexample{The example shows the serialization of a JSON value to a byte - vector in CBOR format.,to_cbor} + primitive_iterator_t operator++(int)& noexcept // NOLINT(cert-dcl21-cpp) + { + auto result = *this; + ++m_it; + return result; + } - @sa http://cbor.io - @sa @ref from_cbor(const std::vector&, const size_t) for the - analogous deserialization - @sa @ref to_msgpack(const basic_json& for the related MessagePack format + primitive_iterator_t& operator--() noexcept + { + --m_it; + return *this; + } - @since version 2.0.9 - */ - static std::vector to_cbor(const basic_json& j) + primitive_iterator_t operator--(int)& noexcept // NOLINT(cert-dcl21-cpp) { - std::vector result; - to_cbor_internal(j, result); + auto result = *this; + --m_it; return result; } - /*! - @brief create a JSON value from a byte vector in CBOR format + primitive_iterator_t& operator+=(difference_type n) noexcept + { + m_it += n; + return *this; + } - Deserializes a given byte vector @a v to a JSON value using the CBOR - (Concise Binary Object Representation) serialization format. + primitive_iterator_t& operator-=(difference_type n) noexcept + { + m_it -= n; + return *this; + } +}; +} // namespace detail +} // namespace nlohmann - @param[in] v a byte vector in CBOR format - @param[in] start_index the index to start reading from @a v (0 by default) - @return deserialized JSON value - @throw std::invalid_argument if unsupported features from CBOR were used in - the given vector @a v or if the input is not valid MessagePack - @throw std::out_of_range if the given vector ends prematurely +namespace nlohmann +{ +namespace detail +{ +/*! +@brief an iterator value +@note This structure could easily be a union, but MSVC currently does not allow +unions members with complex constructors, see https://github.com/nlohmann/json/pull/105. +*/ +template struct internal_iterator +{ + /// iterator for JSON objects + typename BasicJsonType::object_t::iterator object_iterator {}; + /// iterator for JSON arrays + typename BasicJsonType::array_t::iterator array_iterator {}; + /// generic iterator for all other types + primitive_iterator_t primitive_iterator {}; +}; +} // namespace detail +} // namespace nlohmann - @complexity Linear in the size of the byte vector @a v. +// #include - @liveexample{The example shows the deserialization of a byte vector in CBOR - format to a JSON value.,from_cbor} - @sa http://cbor.io - @sa @ref to_cbor(const basic_json&) for the analogous serialization - @sa @ref from_msgpack(const std::vector&, const size_t) for the - related MessagePack format +#include // iterator, random_access_iterator_tag, bidirectional_iterator_tag, advance, next +#include // conditional, is_const, remove_const - @since version 2.0.9, parameter @a start_index since 2.1.1 - */ - static basic_json from_cbor(const std::vector& v, - const size_t start_index = 0) - { - size_t i = start_index; - return from_cbor_internal(v, i); - } +// #include - /// @} +// #include - /////////////////////////// - // convenience functions // - /////////////////////////// +// #include - /*! - @brief return the type as string +// #include - Returns the type name as string to be used in error messages - usually to - indicate that a function was called on a wrong JSON type. +// #include - @return basically a string representation of a the @a m_type member +// #include - @complexity Constant. +// #include - @liveexample{The following code exemplifies `type_name()` for all JSON - types.,type_name} - @since version 1.0.0, public since 2.1.0 - */ - std::string type_name() const - { - { - switch (m_type) - { - case value_t::null: - return "null"; - case value_t::object: - return "object"; - case value_t::array: - return "array"; - case value_t::string: - return "string"; - case value_t::boolean: - return "boolean"; - case value_t::discarded: - return "discarded"; - default: - return "number"; - } - } - } +namespace nlohmann +{ +namespace detail +{ +// forward declare, to be able to friend it later on +template class iteration_proxy; +template class iteration_proxy_value; - private: - /*! - @brief calculates the extra space to escape a JSON string +/*! +@brief a template for a bidirectional iterator for the @ref basic_json class +This class implements a both iterators (iterator and const_iterator) for the +@ref basic_json class. +@note An iterator is called *initialized* when a pointer to a JSON value has + been set (e.g., by a constructor or a copy assignment). If the iterator is + default-constructed, it is *uninitialized* and most methods are undefined. + **The library uses assertions to detect calls on uninitialized iterators.** +@requirement The class satisfies the following concept requirements: +- +[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator): + The iterator that can be moved can be moved in both directions (i.e. + incremented and decremented). +@since version 1.0.0, simplified in version 2.0.9, change to bidirectional + iterators in version 3.0.0 (see https://github.com/nlohmann/json/issues/593) +*/ +template +class iter_impl // NOLINT(cppcoreguidelines-special-member-functions,hicpp-special-member-functions) +{ + /// the iterator with BasicJsonType of different const-ness + using other_iter_impl = iter_impl::value, typename std::remove_const::type, const BasicJsonType>::type>; + /// allow basic_json to access private members + friend other_iter_impl; + friend BasicJsonType; + friend iteration_proxy; + friend iteration_proxy_value; + + using object_t = typename BasicJsonType::object_t; + using array_t = typename BasicJsonType::array_t; + // make sure BasicJsonType is basic_json or const basic_json + static_assert(is_basic_json::type>::value, + "iter_impl only accepts (const) basic_json"); - @param[in] s the string to escape - @return the number of characters required to escape string @a s + public: - @complexity Linear in the length of string @a s. + /// The std::iterator class template (used as a base class to provide typedefs) is deprecated in C++17. + /// The C++ Standard has never required user-defined iterators to derive from std::iterator. + /// A user-defined iterator should provide publicly accessible typedefs named + /// iterator_category, value_type, difference_type, pointer, and reference. + /// Note that value_type is required to be non-const, even for constant iterators. + using iterator_category = std::bidirectional_iterator_tag; + + /// the type of the values when the iterator is dereferenced + using value_type = typename BasicJsonType::value_type; + /// a type to represent differences between iterators + using difference_type = typename BasicJsonType::difference_type; + /// defines a pointer to the type iterated over (value_type) + using pointer = typename std::conditional::value, + typename BasicJsonType::const_pointer, + typename BasicJsonType::pointer>::type; + /// defines a reference to the type iterated over (value_type) + using reference = + typename std::conditional::value, + typename BasicJsonType::const_reference, + typename BasicJsonType::reference>::type; + + iter_impl() = default; + ~iter_impl() = default; + iter_impl(iter_impl&&) noexcept = default; + iter_impl& operator=(iter_impl&&) noexcept = default; + + /*! + @brief constructor for a given JSON instance + @param[in] object pointer to a JSON object for this iterator + @pre object != nullptr + @post The iterator is initialized; i.e. `m_object != nullptr`. */ - static std::size_t extra_space(const string_t& s) noexcept + explicit iter_impl(pointer object) noexcept : m_object(object) { - return std::accumulate(s.begin(), s.end(), size_t{}, - [](size_t res, typename string_t::value_type c) + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) { - switch (c) + case value_t::object: { - case '"': - case '\\': - case '\b': - case '\f': - case '\n': - case '\r': - case '\t': - { - // from c (1 byte) to \x (2 bytes) - return res + 1; - } + m_it.object_iterator = typename object_t::iterator(); + break; + } - default: - { - if (c >= 0x00 and c <= 0x1f) - { - // from c (1 byte) to \uxxxx (6 bytes) - return res + 5; - } + case value_t::array: + { + m_it.array_iterator = typename array_t::iterator(); + break; + } - return res; - } + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + m_it.primitive_iterator = primitive_iterator_t(); + break; } - }); + } } /*! - @brief escape a string - - Escape a string by replacing certain special characters by a sequence of - an escape character (backslash) and another character and other control - characters by a sequence of "\u" followed by a four-digit hex - representation. + @note The conventional copy constructor and copy assignment are implicitly + defined. Combined with the following converting constructor and + assignment, they support: (1) copy from iterator to iterator, (2) + copy from const iterator to const iterator, and (3) conversion from + iterator to const iterator. However conversion from const iterator + to iterator is not defined. + */ - @param[in] s the string to escape - @return the escaped string + /*! + @brief const copy constructor + @param[in] other const iterator to copy from + @note This copy constructor had to be defined explicitly to circumvent a bug + occurring on msvc v19.0 compiler (VS 2015) debug build. For more + information refer to: https://github.com/nlohmann/json/issues/1608 + */ + iter_impl(const iter_impl& other) noexcept + : m_object(other.m_object), m_it(other.m_it) + {} - @complexity Linear in the length of string @a s. + /*! + @brief converting assignment + @param[in] other const iterator to copy from + @return const/non-const iterator + @note It is not checked whether @a other is initialized. */ - static string_t escape_string(const string_t& s) + iter_impl& operator=(const iter_impl& other) noexcept { - const auto space = extra_space(s); - if (space == 0) - { - return s; - } - - // create a result string of necessary size - string_t result(s.size() + space, '\\'); - std::size_t pos = 0; - - for (const auto& c : s) + if (&other != this) { - switch (c) - { - // quotation mark (0x22) - case '"': - { - result[pos + 1] = '"'; - pos += 2; - break; - } - - // reverse solidus (0x5c) - case '\\': - { - // nothing to change - pos += 2; - break; - } - - // backspace (0x08) - case '\b': - { - result[pos + 1] = 'b'; - pos += 2; - break; - } - - // formfeed (0x0c) - case '\f': - { - result[pos + 1] = 'f'; - pos += 2; - break; - } - - // newline (0x0a) - case '\n': - { - result[pos + 1] = 'n'; - pos += 2; - break; - } - - // carriage return (0x0d) - case '\r': - { - result[pos + 1] = 'r'; - pos += 2; - break; - } - - // horizontal tab (0x09) - case '\t': - { - result[pos + 1] = 't'; - pos += 2; - break; - } - - default: - { - if (c >= 0x00 and c <= 0x1f) - { - // convert a number 0..15 to its hex representation - // (0..f) - static const char hexify[16] = - { - '0', '1', '2', '3', '4', '5', '6', '7', - '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' - }; - - // print character c as \uxxxx - for (const char m : - { 'u', '0', '0', hexify[c >> 4], hexify[c & 0x0f] - }) - { - result[++pos] = m; - } - - ++pos; - } - else - { - // all other characters are added as-is - result[pos++] = c; - } - break; - } - } + m_object = other.m_object; + m_it = other.m_it; } - - return result; + return *this; } + /*! + @brief converting constructor + @param[in] other non-const iterator to copy from + @note It is not checked whether @a other is initialized. + */ + iter_impl(const iter_impl::type>& other) noexcept + : m_object(other.m_object), m_it(other.m_it) + {} /*! - @brief locale-independent serialization for built-in arithmetic types + @brief converting assignment + @param[in] other non-const iterator to copy from + @return const/non-const iterator + @note It is not checked whether @a other is initialized. */ - struct numtostr + iter_impl& operator=(const iter_impl::type>& other) noexcept // NOLINT(cert-oop54-cpp) { - public: - template - numtostr(NumberType value) - { - x_write(value, std::is_integral()); - } - - const char* c_str() const - { - return m_buf.data(); - } + m_object = other.m_object; + m_it = other.m_it; + return *this; + } - private: - /// a (hopefully) large enough character buffer - std::array < char, 64 > m_buf{{}}; + JSON_PRIVATE_UNLESS_TESTED: + /*! + @brief set the iterator to the first value + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + void set_begin() noexcept + { + JSON_ASSERT(m_object != nullptr); - template - void x_write(NumberType x, /*is_integral=*/std::true_type) + switch (m_object->m_type) { - // special case for "0" - if (x == 0) + case value_t::object: { - m_buf[0] = '0'; - return; + m_it.object_iterator = m_object->m_value.object->begin(); + break; } - const bool is_negative = x < 0; - size_t i = 0; - - // spare 1 byte for '\0' - while (x != 0 and i < m_buf.size() - 1) + case value_t::array: { - const auto digit = std::labs(static_cast(x % 10)); - m_buf[i++] = static_cast('0' + digit); - x /= 10; + m_it.array_iterator = m_object->m_value.array->begin(); + break; } - // make sure the number has been processed completely - assert(x == 0); - - if (is_negative) + case value_t::null: { - // make sure there is capacity for the '-' - assert(i < m_buf.size() - 2); - m_buf[i++] = '-'; + // set to end so begin()==end() is true: null is empty + m_it.primitive_iterator.set_end(); + break; } - std::reverse(m_buf.begin(), m_buf.begin() + i); - } - - template - void x_write(NumberType x, /*is_integral=*/std::false_type) - { - // special case for 0.0 and -0.0 - if (x == 0) + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: { - size_t i = 0; - if (std::signbit(x)) - { - m_buf[i++] = '-'; - } - m_buf[i++] = '0'; - m_buf[i++] = '.'; - m_buf[i] = '0'; - return; + m_it.primitive_iterator.set_begin(); + break; } + } + } - // get number of digits for a text -> float -> text round-trip - static constexpr auto d = std::numeric_limits::digits10; - - // the actual conversion - const auto written_bytes = snprintf(m_buf.data(), m_buf.size(), "%.*g", d, x); - - // negative value indicates an error - assert(written_bytes > 0); - // check if buffer was large enough - assert(static_cast(written_bytes) < m_buf.size()); - - // read information from locale - const auto loc = localeconv(); - assert(loc != nullptr); - const char thousands_sep = !loc->thousands_sep ? '\0' - : loc->thousands_sep[0]; - - const char decimal_point = !loc->decimal_point ? '\0' - : loc->decimal_point[0]; - - // erase thousands separator - if (thousands_sep != '\0') - { - const auto end = std::remove(m_buf.begin(), m_buf.begin() + written_bytes, thousands_sep); - std::fill(end, m_buf.end(), '\0'); - } + /*! + @brief set the iterator past the last value + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + void set_end() noexcept + { + JSON_ASSERT(m_object != nullptr); - // convert decimal point to '.' - if (decimal_point != '\0' and decimal_point != '.') + switch (m_object->m_type) + { + case value_t::object: { - for (auto& c : m_buf) - { - if (c == decimal_point) - { - c = '.'; - break; - } - } + m_it.object_iterator = m_object->m_value.object->end(); + break; } - // determine if need to append ".0" - size_t i = 0; - bool value_is_int_like = true; - for (i = 0; i < m_buf.size(); ++i) + case value_t::array: { - // break when end of number is reached - if (m_buf[i] == '\0') - { - break; - } - - // check if we find non-int character - value_is_int_like = value_is_int_like and m_buf[i] != '.' and - m_buf[i] != 'e' and m_buf[i] != 'E'; + m_it.array_iterator = m_object->m_value.array->end(); + break; } - if (value_is_int_like) + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: { - // there must be 2 bytes left for ".0" - assert((i + 2) < m_buf.size()); - // we write to the end of the number - assert(m_buf[i] == '\0'); - assert(m_buf[i - 1] != '\0'); - - // add ".0" - m_buf[i] = '.'; - m_buf[i + 1] = '0'; - - // the resulting string is properly terminated - assert(m_buf[i + 2] == '\0'); + m_it.primitive_iterator.set_end(); + break; } } - }; - + } + public: /*! - @brief internal implementation of the serialization function - - This function is called by the public member function dump and organizes - the serialization internally. The indentation level is propagated as - additional parameter. In case of arrays and objects, the function is - called recursively. Note that - - - strings and object keys are escaped using `escape_string()` - - integer numbers are converted implicitly via `operator<<` - - floating-point numbers are converted to a string using `"%g"` format - - @param[out] o stream to write to - @param[in] pretty_print whether the output shall be pretty-printed - @param[in] indent_step the indent level - @param[in] current_indent the current indent level (only used internally) + @brief return a reference to the value pointed to by the iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. */ - void dump(std::ostream& o, - const bool pretty_print, - const unsigned int indent_step, - const unsigned int current_indent = 0) const + reference operator*() const { - // variable to hold indentation for recursive calls - unsigned int new_indent = current_indent; + JSON_ASSERT(m_object != nullptr); - switch (m_type) + switch (m_object->m_type) { case value_t::object: { - if (m_value.object->empty()) - { - o << "{}"; - return; - } + JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end()); + return m_it.object_iterator->second; + } + + case value_t::array: + { + JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end()); + return *m_it.array_iterator; + } - o << "{"; + case value_t::null: + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); - // increase indentation - if (pretty_print) + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin())) { - new_indent += indent_step; - o << "\n"; + return *m_object; } - for (auto i = m_value.object->cbegin(); i != m_value.object->cend(); ++i) - { - if (i != m_value.object->cbegin()) - { - o << (pretty_print ? ",\n" : ","); - } - o << string_t(new_indent, ' ') << "\"" - << escape_string(i->first) << "\":" - << (pretty_print ? " " : ""); - i->second.dump(o, pretty_print, indent_step, new_indent); - } + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); + } + } + } - // decrease indentation - if (pretty_print) - { - new_indent -= indent_step; - o << "\n"; - } + /*! + @brief dereference the iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + pointer operator->() const + { + JSON_ASSERT(m_object != nullptr); - o << string_t(new_indent, ' ') + "}"; - return; + switch (m_object->m_type) + { + case value_t::object: + { + JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end()); + return &(m_it.object_iterator->second); } case value_t::array: { - if (m_value.array->empty()) - { - o << "[]"; - return; - } - - o << "["; + JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end()); + return &*m_it.array_iterator; + } - // increase indentation - if (pretty_print) + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin())) { - new_indent += indent_step; - o << "\n"; + return m_object; } - for (auto i = m_value.array->cbegin(); i != m_value.array->cend(); ++i) - { - if (i != m_value.array->cbegin()) - { - o << (pretty_print ? ",\n" : ","); - } - o << string_t(new_indent, ' '); - i->dump(o, pretty_print, indent_step, new_indent); - } + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); + } + } + } - // decrease indentation - if (pretty_print) - { - new_indent -= indent_step; - o << "\n"; - } + /*! + @brief post-increment (it++) + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl operator++(int)& // NOLINT(cert-dcl21-cpp) + { + auto result = *this; + ++(*this); + return result; + } - o << string_t(new_indent, ' ') << "]"; - return; - } + /*! + @brief pre-increment (++it) + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl& operator++() + { + JSON_ASSERT(m_object != nullptr); - case value_t::string: + switch (m_object->m_type) + { + case value_t::object: { - o << string_t("\"") << escape_string(*m_value.string) << "\""; - return; + std::advance(m_it.object_iterator, 1); + break; } - case value_t::boolean: + case value_t::array: { - o << (m_value.boolean ? "true" : "false"); - return; + std::advance(m_it.array_iterator, 1); + break; } + case value_t::null: + case value_t::string: + case value_t::boolean: case value_t::number_integer: - { - o << numtostr(m_value.number_integer).c_str(); - return; - } - case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: { - o << numtostr(m_value.number_unsigned).c_str(); - return; + ++m_it.primitive_iterator; + break; } + } - case value_t::number_float: + return *this; + } + + /*! + @brief post-decrement (it--) + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl operator--(int)& // NOLINT(cert-dcl21-cpp) + { + auto result = *this; + --(*this); + return result; + } + + /*! + @brief pre-decrement (--it) + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl& operator--() + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: { - o << numtostr(m_value.number_float).c_str(); - return; + std::advance(m_it.object_iterator, -1); + break; } - case value_t::discarded: + case value_t::array: { - o << ""; - return; + std::advance(m_it.array_iterator, -1); + break; } case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: { - o << "null"; - return; + --m_it.primitive_iterator; + break; } } - } - - private: - ////////////////////// - // member variables // - ////////////////////// - - /// the type of the current element - value_t m_type = value_t::null; - - /// the value of the current element - json_value m_value = {}; - - private: - /////////////// - // iterators // - /////////////// + return *this; + } /*! - @brief an iterator for primitive JSON types - - This class models an iterator for primitive JSON types (boolean, number, - string). It's only purpose is to allow the iterator/const_iterator classes - to "iterate" over primitive values. Internally, the iterator is modeled by - a `difference_type` variable. Value begin_value (`0`) models the begin, - end_value (`1`) models past the end. + @brief comparison: equal + @pre The iterator is initialized; i.e. `m_object != nullptr`. */ - class primitive_iterator_t + template < typename IterImpl, detail::enable_if_t < (std::is_same::value || std::is_same::value), std::nullptr_t > = nullptr > + bool operator==(const IterImpl& other) const { - public: - - difference_type get_value() const noexcept - { - return m_it; - } - /// set iterator to a defined beginning - void set_begin() noexcept - { - m_it = begin_value; - } - - /// set iterator to a defined past the end - void set_end() noexcept + // if objects are not the same, the comparison is undefined + if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object)) { - m_it = end_value; + JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers", *m_object)); } - /// return whether the iterator can be dereferenced - constexpr bool is_begin() const noexcept - { - return (m_it == begin_value); - } - - /// return whether the iterator is at end - constexpr bool is_end() const noexcept - { - return (m_it == end_value); - } + JSON_ASSERT(m_object != nullptr); - friend constexpr bool operator==(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept + switch (m_object->m_type) { - return lhs.m_it == rhs.m_it; - } + case value_t::object: + return (m_it.object_iterator == other.m_it.object_iterator); - friend constexpr bool operator!=(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept - { - return !(lhs == rhs); - } + case value_t::array: + return (m_it.array_iterator == other.m_it.array_iterator); - friend constexpr bool operator<(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept - { - return lhs.m_it < rhs.m_it; + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + return (m_it.primitive_iterator == other.m_it.primitive_iterator); } + } - friend constexpr bool operator<=(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept - { - return lhs.m_it <= rhs.m_it; - } + /*! + @brief comparison: not equal + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + template < typename IterImpl, detail::enable_if_t < (std::is_same::value || std::is_same::value), std::nullptr_t > = nullptr > + bool operator!=(const IterImpl& other) const + { + return !operator==(other); + } - friend constexpr bool operator>(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept + /*! + @brief comparison: smaller + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + bool operator<(const iter_impl& other) const + { + // if objects are not the same, the comparison is undefined + if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object)) { - return lhs.m_it > rhs.m_it; + JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers", *m_object)); } - friend constexpr bool operator>=(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept - { - return lhs.m_it >= rhs.m_it; - } + JSON_ASSERT(m_object != nullptr); - primitive_iterator_t operator+(difference_type i) + switch (m_object->m_type) { - auto result = *this; - result += i; - return result; - } + case value_t::object: + JSON_THROW(invalid_iterator::create(213, "cannot compare order of object iterators", *m_object)); - friend constexpr difference_type operator-(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept - { - return lhs.m_it - rhs.m_it; - } + case value_t::array: + return (m_it.array_iterator < other.m_it.array_iterator); - friend std::ostream& operator<<(std::ostream& os, primitive_iterator_t it) - { - return os << it.m_it; + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + return (m_it.primitive_iterator < other.m_it.primitive_iterator); } + } - primitive_iterator_t& operator++() - { - ++m_it; - return *this; - } + /*! + @brief comparison: less than or equal + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + bool operator<=(const iter_impl& other) const + { + return !other.operator < (*this); + } - primitive_iterator_t operator++(int) - { - auto result = *this; - m_it++; - return result; - } + /*! + @brief comparison: greater than + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + bool operator>(const iter_impl& other) const + { + return !operator<=(other); + } - primitive_iterator_t& operator--() - { - --m_it; - return *this; - } + /*! + @brief comparison: greater than or equal + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + bool operator>=(const iter_impl& other) const + { + return !operator<(other); + } - primitive_iterator_t operator--(int) - { - auto result = *this; - m_it--; - return result; - } + /*! + @brief add to iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl& operator+=(difference_type i) + { + JSON_ASSERT(m_object != nullptr); - primitive_iterator_t& operator+=(difference_type n) + switch (m_object->m_type) { - m_it += n; - return *this; - } + case value_t::object: + JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators", *m_object)); - primitive_iterator_t& operator-=(difference_type n) - { - m_it -= n; - return *this; + case value_t::array: + { + std::advance(m_it.array_iterator, i); + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + m_it.primitive_iterator += i; + break; + } } - private: - static constexpr difference_type begin_value = 0; - static constexpr difference_type end_value = begin_value + 1; + return *this; + } - /// iterator as signed integer type - difference_type m_it = std::numeric_limits::denorm_min(); - }; + /*! + @brief subtract from iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl& operator-=(difference_type i) + { + return operator+=(-i); + } /*! - @brief an iterator value + @brief add to iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl operator+(difference_type i) const + { + auto result = *this; + result += i; + return result; + } - @note This structure could easily be a union, but MSVC currently does not - allow unions members with complex constructors, see - https://github.com/nlohmann/json/pull/105. + /*! + @brief addition of distance and iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. */ - struct internal_iterator + friend iter_impl operator+(difference_type i, const iter_impl& it) { - /// iterator for JSON objects - typename object_t::iterator object_iterator; - /// iterator for JSON arrays - typename array_t::iterator array_iterator; - /// generic iterator for all other types - primitive_iterator_t primitive_iterator; + auto result = it; + result += i; + return result; + } - /// create an uninitialized internal_iterator - internal_iterator() noexcept - : object_iterator(), array_iterator(), primitive_iterator() - {} - }; + /*! + @brief subtract from iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl operator-(difference_type i) const + { + auto result = *this; + result -= i; + return result; + } - /// proxy class for the iterator_wrapper functions - template - class iteration_proxy + /*! + @brief return difference + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + difference_type operator-(const iter_impl& other) const { - private: - /// helper class for iteration - class iteration_proxy_internal + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) { - private: - /// the iterator - IteratorType anchor; - /// an index for arrays (used to create key names) - size_t array_index = 0; + case value_t::object: + JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators", *m_object)); - public: - explicit iteration_proxy_internal(IteratorType it) noexcept - : anchor(it) - {} + case value_t::array: + return m_it.array_iterator - other.m_it.array_iterator; - /// dereference operator (needed for range-based for) - iteration_proxy_internal& operator*() - { - return *this; - } + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + return m_it.primitive_iterator - other.m_it.primitive_iterator; + } + } - /// increment operator (needed for range-based for) - iteration_proxy_internal& operator++() - { - ++anchor; - ++array_index; + /*! + @brief access to successor + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + reference operator[](difference_type n) const + { + JSON_ASSERT(m_object != nullptr); - return *this; - } + switch (m_object->m_type) + { + case value_t::object: + JSON_THROW(invalid_iterator::create(208, "cannot use operator[] for object iterators", *m_object)); - /// inequality operator (needed for range-based for) - bool operator!= (const iteration_proxy_internal& o) const - { - return anchor != o.anchor; - } + case value_t::array: + return *std::next(m_it.array_iterator, n); - /// return key of the iterator - typename basic_json::string_t key() const - { - assert(anchor.m_object != nullptr); + case value_t::null: + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); - switch (anchor.m_object->type()) + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.get_value() == -n)) { - // use integer array index as key - case value_t::array: - { - return std::to_string(array_index); - } - - // use key from the object - case value_t::object: - { - return anchor.key(); - } - - // use an empty key for all primitive types - default: - { - return ""; - } + return *m_object; } - } - /// return value of the iterator - typename IteratorType::reference value() const - { - return anchor.value(); + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); } - }; - - /// the container to iterate - typename IteratorType::reference container; + } + } - public: - /// construct iteration proxy from a container - explicit iteration_proxy(typename IteratorType::reference cont) - : container(cont) - {} + /*! + @brief return the key of an object iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + const typename object_t::key_type& key() const + { + JSON_ASSERT(m_object != nullptr); - /// return iterator begin (needed for range-based for) - iteration_proxy_internal begin() noexcept + if (JSON_HEDLEY_LIKELY(m_object->is_object())) { - return iteration_proxy_internal(container.begin()); + return m_it.object_iterator->first; } - /// return iterator end (needed for range-based for) - iteration_proxy_internal end() noexcept - { - return iteration_proxy_internal(container.end()); - } - }; + JSON_THROW(invalid_iterator::create(207, "cannot use key() for non-object iterators", *m_object)); + } - public: /*! - @brief a template for a random access iterator for the @ref basic_json class - - This class implements a both iterators (iterator and const_iterator) for the - @ref basic_json class. - - @note An iterator is called *initialized* when a pointer to a JSON value - has been set (e.g., by a constructor or a copy assignment). If the - iterator is default-constructed, it is *uninitialized* and most - methods are undefined. **The library uses assertions to detect calls - on uninitialized iterators.** - - @requirement The class satisfies the following concept requirements: - - [RandomAccessIterator](http://en.cppreference.com/w/cpp/concept/RandomAccessIterator): - The iterator that can be moved to point (forward and backward) to any - element in constant time. - - @since version 1.0.0, simplified in version 2.0.9 - */ - template - class iter_impl : public std::iterator - { - /// allow basic_json to access private members - friend class basic_json; - - // make sure U is basic_json or const basic_json - static_assert(std::is_same::value - or std::is_same::value, - "iter_impl only accepts (const) basic_json"); - - public: - /// the type of the values when the iterator is dereferenced - using value_type = typename basic_json::value_type; - /// a type to represent differences between iterators - using difference_type = typename basic_json::difference_type; - /// defines a pointer to the type iterated over (value_type) - using pointer = typename std::conditional::value, - typename basic_json::const_pointer, - typename basic_json::pointer>::type; - /// defines a reference to the type iterated over (value_type) - using reference = typename std::conditional::value, - typename basic_json::const_reference, - typename basic_json::reference>::type; - /// the category of the iterator - using iterator_category = std::bidirectional_iterator_tag; - - /// default constructor - iter_impl() = default; - - /*! - @brief constructor for a given JSON instance - @param[in] object pointer to a JSON object for this iterator - @pre object != nullptr - @post The iterator is initialized; i.e. `m_object != nullptr`. - */ - explicit iter_impl(pointer object) noexcept - : m_object(object) - { - assert(m_object != nullptr); - - switch (m_object->m_type) - { - case basic_json::value_t::object: - { - m_it.object_iterator = typename object_t::iterator(); - break; - } - - case basic_json::value_t::array: - { - m_it.array_iterator = typename array_t::iterator(); - break; - } + @brief return the value of an iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + reference value() const + { + return operator*(); + } - default: - { - m_it.primitive_iterator = primitive_iterator_t(); - break; - } - } - } + JSON_PRIVATE_UNLESS_TESTED: + /// associated JSON instance + pointer m_object = nullptr; + /// the actual iterator of the associated instance + internal_iterator::type> m_it {}; +}; +} // namespace detail +} // namespace nlohmann - /* - Use operator `const_iterator` instead of `const_iterator(const iterator& - other) noexcept` to avoid two class definitions for @ref iterator and - @ref const_iterator. +// #include - This function is only called if this class is an @ref iterator. If this - class is a @ref const_iterator this function is not called. - */ - operator const_iterator() const - { - const_iterator ret; +// #include - if (m_object) - { - ret.m_object = m_object; - ret.m_it = m_it; - } - return ret; - } +#include // ptrdiff_t +#include // reverse_iterator +#include // declval - /*! - @brief copy constructor - @param[in] other iterator to copy from - @note It is not checked whether @a other is initialized. - */ - iter_impl(const iter_impl& other) noexcept - : m_object(other.m_object), m_it(other.m_it) - {} +namespace nlohmann +{ +namespace detail +{ +////////////////////// +// reverse_iterator // +////////////////////// - /*! - @brief copy assignment - @param[in,out] other iterator to copy from - @note It is not checked whether @a other is initialized. - */ - iter_impl& operator=(iter_impl other) noexcept( - std::is_nothrow_move_constructible::value and - std::is_nothrow_move_assignable::value and - std::is_nothrow_move_constructible::value and - std::is_nothrow_move_assignable::value - ) - { - std::swap(m_object, other.m_object); - std::swap(m_it, other.m_it); - return *this; - } +/*! +@brief a template for a reverse iterator class +@tparam Base the base iterator type to reverse. Valid types are @ref +iterator (to create @ref reverse_iterator) and @ref const_iterator (to +create @ref const_reverse_iterator). +@requirement The class satisfies the following concept requirements: +- +[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator): + The iterator that can be moved can be moved in both directions (i.e. + incremented and decremented). +- [OutputIterator](https://en.cppreference.com/w/cpp/named_req/OutputIterator): + It is possible to write to the pointed-to element (only if @a Base is + @ref iterator). +@since version 1.0.0 +*/ +template +class json_reverse_iterator : public std::reverse_iterator +{ + public: + using difference_type = std::ptrdiff_t; + /// shortcut to the reverse iterator adapter + using base_iterator = std::reverse_iterator; + /// the reference type for the pointed-to element + using reference = typename Base::reference; - private: - /*! - @brief set the iterator to the first value - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - void set_begin() noexcept - { - assert(m_object != nullptr); + /// create reverse iterator from iterator + explicit json_reverse_iterator(const typename base_iterator::iterator_type& it) noexcept + : base_iterator(it) {} - switch (m_object->m_type) - { - case basic_json::value_t::object: - { - m_it.object_iterator = m_object->m_value.object->begin(); - break; - } + /// create reverse iterator from base class + explicit json_reverse_iterator(const base_iterator& it) noexcept : base_iterator(it) {} - case basic_json::value_t::array: - { - m_it.array_iterator = m_object->m_value.array->begin(); - break; - } + /// post-increment (it++) + json_reverse_iterator operator++(int)& // NOLINT(cert-dcl21-cpp) + { + return static_cast(base_iterator::operator++(1)); + } - case basic_json::value_t::null: - { - // set to end so begin()==end() is true: null is empty - m_it.primitive_iterator.set_end(); - break; - } + /// pre-increment (++it) + json_reverse_iterator& operator++() + { + return static_cast(base_iterator::operator++()); + } - default: - { - m_it.primitive_iterator.set_begin(); - break; - } - } - } + /// post-decrement (it--) + json_reverse_iterator operator--(int)& // NOLINT(cert-dcl21-cpp) + { + return static_cast(base_iterator::operator--(1)); + } - /*! - @brief set the iterator past the last value - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - void set_end() noexcept - { - assert(m_object != nullptr); + /// pre-decrement (--it) + json_reverse_iterator& operator--() + { + return static_cast(base_iterator::operator--()); + } - switch (m_object->m_type) - { - case basic_json::value_t::object: - { - m_it.object_iterator = m_object->m_value.object->end(); - break; - } + /// add to iterator + json_reverse_iterator& operator+=(difference_type i) + { + return static_cast(base_iterator::operator+=(i)); + } - case basic_json::value_t::array: - { - m_it.array_iterator = m_object->m_value.array->end(); - break; - } + /// add to iterator + json_reverse_iterator operator+(difference_type i) const + { + return static_cast(base_iterator::operator+(i)); + } - default: - { - m_it.primitive_iterator.set_end(); - break; - } - } - } + /// subtract from iterator + json_reverse_iterator operator-(difference_type i) const + { + return static_cast(base_iterator::operator-(i)); + } - public: - /*! - @brief return a reference to the value pointed to by the iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - reference operator*() const - { - assert(m_object != nullptr); + /// return difference + difference_type operator-(const json_reverse_iterator& other) const + { + return base_iterator(*this) - base_iterator(other); + } - switch (m_object->m_type) - { - case basic_json::value_t::object: - { - assert(m_it.object_iterator != m_object->m_value.object->end()); - return m_it.object_iterator->second; - } + /// access to successor + reference operator[](difference_type n) const + { + return *(this->operator+(n)); + } - case basic_json::value_t::array: - { - assert(m_it.array_iterator != m_object->m_value.array->end()); - return *m_it.array_iterator; - } + /// return the key of an object iterator + auto key() const -> decltype(std::declval().key()) + { + auto it = --this->base(); + return it.key(); + } - case basic_json::value_t::null: - { - JSON_THROW(std::out_of_range("cannot get value")); - } + /// return the value of an iterator + reference value() const + { + auto it = --this->base(); + return it.operator * (); + } +}; +} // namespace detail +} // namespace nlohmann - default: - { - if (m_it.primitive_iterator.is_begin()) - { - return *m_object; - } +// #include - JSON_THROW(std::out_of_range("cannot get value")); - } - } - } +// #include - /*! - @brief dereference the iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - pointer operator->() const - { - assert(m_object != nullptr); - switch (m_object->m_type) - { - case basic_json::value_t::object: - { - assert(m_it.object_iterator != m_object->m_value.object->end()); - return &(m_it.object_iterator->second); - } +#include // all_of +#include // isdigit +#include // max +#include // accumulate +#include // string +#include // move +#include // vector - case basic_json::value_t::array: - { - assert(m_it.array_iterator != m_object->m_value.array->end()); - return &*m_it.array_iterator; - } +// #include - default: - { - if (m_it.primitive_iterator.is_begin()) - { - return m_object; - } +// #include - JSON_THROW(std::out_of_range("cannot get value")); - } - } - } +// #include - /*! - @brief post-increment (it++) - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl operator++(int) - { - auto result = *this; - ++(*this); - return result; - } +// #include - /*! - @brief pre-increment (++it) - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl& operator++() - { - assert(m_object != nullptr); - switch (m_object->m_type) - { - case basic_json::value_t::object: - { - std::advance(m_it.object_iterator, 1); - break; - } +namespace nlohmann +{ - case basic_json::value_t::array: - { - std::advance(m_it.array_iterator, 1); - break; - } +/// @brief JSON Pointer defines a string syntax for identifying a specific value within a JSON document +/// @sa https://json.nlohmann.me/api/json_pointer/ +template +class json_pointer +{ + // allow basic_json to access private members + NLOHMANN_BASIC_JSON_TPL_DECLARATION + friend class basic_json; - default: - { - ++m_it.primitive_iterator; - break; - } - } + public: + /// @brief create JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/json_pointer/ + explicit json_pointer(const std::string& s = "") + : reference_tokens(split(s)) + {} + + /// @brief return a string representation of the JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/to_string/ + std::string to_string() const + { + return std::accumulate(reference_tokens.begin(), reference_tokens.end(), + std::string{}, + [](const std::string & a, const std::string & b) + { + return a + "/" + detail::escape(b); + }); + } + + /// @brief return a string representation of the JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/operator_string/ + operator std::string() const + { + return to_string(); + } + + /// @brief append another JSON pointer at the end of this JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/operator_slasheq/ + json_pointer& operator/=(const json_pointer& ptr) + { + reference_tokens.insert(reference_tokens.end(), + ptr.reference_tokens.begin(), + ptr.reference_tokens.end()); + return *this; + } + + /// @brief append an unescaped reference token at the end of this JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/operator_slasheq/ + json_pointer& operator/=(std::string token) + { + push_back(std::move(token)); + return *this; + } + /// @brief append an array index at the end of this JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/operator_slasheq/ + json_pointer& operator/=(std::size_t array_idx) + { + return *this /= std::to_string(array_idx); + } + + /// @brief create a new JSON pointer by appending the right JSON pointer at the end of the left JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/operator_slash/ + friend json_pointer operator/(const json_pointer& lhs, + const json_pointer& rhs) + { + return json_pointer(lhs) /= rhs; + } + + /// @brief create a new JSON pointer by appending the unescaped token at the end of the JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/operator_slash/ + friend json_pointer operator/(const json_pointer& lhs, std::string token) // NOLINT(performance-unnecessary-value-param) + { + return json_pointer(lhs) /= std::move(token); + } + + /// @brief create a new JSON pointer by appending the array-index-token at the end of the JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/operator_slash/ + friend json_pointer operator/(const json_pointer& lhs, std::size_t array_idx) + { + return json_pointer(lhs) /= array_idx; + } + + /// @brief returns the parent of this JSON pointer + /// @sa https://json.nlohmann.me/api/json_pointer/parent_pointer/ + json_pointer parent_pointer() const + { + if (empty()) + { return *this; } - /*! - @brief post-decrement (it--) - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl operator--(int) + json_pointer res = *this; + res.pop_back(); + return res; + } + + /// @brief remove last reference token + /// @sa https://json.nlohmann.me/api/json_pointer/pop_back/ + void pop_back() + { + if (JSON_HEDLEY_UNLIKELY(empty())) + { + JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); + } + + reference_tokens.pop_back(); + } + + /// @brief return last reference token + /// @sa https://json.nlohmann.me/api/json_pointer/back/ + const std::string& back() const + { + if (JSON_HEDLEY_UNLIKELY(empty())) { - auto result = *this; - --(*this); - return result; + JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); + } + + return reference_tokens.back(); + } + + /// @brief append an unescaped token at the end of the reference pointer + /// @sa https://json.nlohmann.me/api/json_pointer/push_back/ + void push_back(const std::string& token) + { + reference_tokens.push_back(token); + } + + /// @brief append an unescaped token at the end of the reference pointer + /// @sa https://json.nlohmann.me/api/json_pointer/push_back/ + void push_back(std::string&& token) + { + reference_tokens.push_back(std::move(token)); + } + + /// @brief return whether pointer points to the root document + /// @sa https://json.nlohmann.me/api/json_pointer/empty/ + bool empty() const noexcept + { + return reference_tokens.empty(); + } + + private: + /*! + @param[in] s reference token to be converted into an array index + @return integer representation of @a s + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index begins not with a digit + @throw out_of_range.404 if string @a s could not be converted to an integer + @throw out_of_range.410 if an array index exceeds size_type + */ + static typename BasicJsonType::size_type array_index(const std::string& s) + { + using size_type = typename BasicJsonType::size_type; + + // error condition (cf. RFC 6901, Sect. 4) + if (JSON_HEDLEY_UNLIKELY(s.size() > 1 && s[0] == '0')) + { + JSON_THROW(detail::parse_error::create(106, 0, "array index '" + s + "' must not begin with '0'", BasicJsonType())); + } + + // error condition (cf. RFC 6901, Sect. 4) + if (JSON_HEDLEY_UNLIKELY(s.size() > 1 && !(s[0] >= '1' && s[0] <= '9'))) + { + JSON_THROW(detail::parse_error::create(109, 0, "array index '" + s + "' is not a number", BasicJsonType())); + } + + std::size_t processed_chars = 0; + unsigned long long res = 0; // NOLINT(runtime/int) + JSON_TRY + { + res = std::stoull(s, &processed_chars); + } + JSON_CATCH(std::out_of_range&) + { + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'", BasicJsonType())); + } + + // check if the string was completely read + if (JSON_HEDLEY_UNLIKELY(processed_chars != s.size())) + { + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'", BasicJsonType())); + } + + // only triggered on special platforms (like 32bit), see also + // https://github.com/nlohmann/json/pull/2203 + if (res >= static_cast((std::numeric_limits::max)())) // NOLINT(runtime/int) + { + JSON_THROW(detail::out_of_range::create(410, "array index " + s + " exceeds size_type", BasicJsonType())); // LCOV_EXCL_LINE } - /*! - @brief pre-decrement (--it) - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl& operator--() + return static_cast(res); + } + + JSON_PRIVATE_UNLESS_TESTED: + json_pointer top() const + { + if (JSON_HEDLEY_UNLIKELY(empty())) { - assert(m_object != nullptr); + JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); + } + + json_pointer result = *this; + result.reference_tokens = {reference_tokens[0]}; + return result; + } + + private: + /*! + @brief create and return a reference to the pointed to value + @complexity Linear in the number of reference tokens. + @throw parse_error.109 if array index is not a number + @throw type_error.313 if value cannot be unflattened + */ + BasicJsonType& get_and_create(BasicJsonType& j) const + { + auto* result = &j; - switch (m_object->m_type) + // in case no reference tokens exist, return a reference to the JSON value + // j which will be overwritten by a primitive value + for (const auto& reference_token : reference_tokens) + { + switch (result->type()) { - case basic_json::value_t::object: + case detail::value_t::null: { - std::advance(m_it.object_iterator, -1); + if (reference_token == "0") + { + // start a new array if reference token is 0 + result = &result->operator[](0); + } + else + { + // start a new object otherwise + result = &result->operator[](reference_token); + } break; } - case basic_json::value_t::array: + case detail::value_t::object: { - std::advance(m_it.array_iterator, -1); + // create an entry in the object + result = &result->operator[](reference_token); break; } - default: + case detail::value_t::array: { - --m_it.primitive_iterator; + // create an entry in the array + result = &result->operator[](array_index(reference_token)); break; } - } - return *this; + /* + The following code is only reached if there exists a reference + token _and_ the current value is primitive. In this case, we have + an error situation, because primitive values may only occur as + single value; that is, with an empty list of reference tokens. + */ + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + JSON_THROW(detail::type_error::create(313, "invalid value to unflatten", j)); + } } - /*! - @brief comparison: equal - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator==(const iter_impl& other) const + return *result; + } + + /*! + @brief return a reference to the pointed to value + @note This version does not throw if a value is not present, but tries to + create nested values instead. For instance, calling this function + with pointer `"/this/that"` on a null value is equivalent to calling + `operator[]("this").operator[]("that")` on that value, effectively + changing the null value to an object. + @param[in] ptr a JSON value + @return reference to the JSON value pointed to by the JSON pointer + @complexity Linear in the length of the JSON pointer. + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.404 if the JSON pointer can not be resolved + */ + BasicJsonType& get_unchecked(BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) { - // if objects are not the same, the comparison is undefined - if (m_object != other.m_object) + // convert null values to arrays or objects before continuing + if (ptr->is_null()) { - JSON_THROW(std::domain_error("cannot compare iterators of different containers")); - } + // check if reference token is a number + const bool nums = + std::all_of(reference_token.begin(), reference_token.end(), + [](const unsigned char x) + { + return std::isdigit(x); + }); - assert(m_object != nullptr); + // change value to array for numbers or "-" or to object otherwise + *ptr = (nums || reference_token == "-") + ? detail::value_t::array + : detail::value_t::object; + } - switch (m_object->m_type) + switch (ptr->type()) { - case basic_json::value_t::object: + case detail::value_t::object: { - return (m_it.object_iterator == other.m_it.object_iterator); + // use unchecked object access + ptr = &ptr->operator[](reference_token); + break; } - case basic_json::value_t::array: + case detail::value_t::array: { - return (m_it.array_iterator == other.m_it.array_iterator); + if (reference_token == "-") + { + // explicitly treat "-" as index beyond the end + ptr = &ptr->operator[](ptr->m_value.array->size()); + } + else + { + // convert array index to number; unchecked access + ptr = &ptr->operator[](array_index(reference_token)); + } + break; } + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: default: - { - return (m_it.primitive_iterator == other.m_it.primitive_iterator); - } + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); } } - /*! - @brief comparison: not equal - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator!=(const iter_impl& other) const - { - return not operator==(other); - } + return *ptr; + } - /*! - @brief comparison: smaller - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator<(const iter_impl& other) const + /*! + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.402 if the array index '-' is used + @throw out_of_range.404 if the JSON pointer can not be resolved + */ + BasicJsonType& get_checked(BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) { - // if objects are not the same, the comparison is undefined - if (m_object != other.m_object) - { - JSON_THROW(std::domain_error("cannot compare iterators of different containers")); - } - - assert(m_object != nullptr); - - switch (m_object->m_type) + switch (ptr->type()) { - case basic_json::value_t::object: + case detail::value_t::object: { - JSON_THROW(std::domain_error("cannot compare order of object iterators")); + // note: at performs range check + ptr = &ptr->at(reference_token); + break; } - case basic_json::value_t::array: + case detail::value_t::array: { - return (m_it.array_iterator < other.m_it.array_iterator); + if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) + { + // "-" always fails the range check + JSON_THROW(detail::out_of_range::create(402, + "array index '-' (" + std::to_string(ptr->m_value.array->size()) + + ") is out of range", *ptr)); + } + + // note: at performs range check + ptr = &ptr->at(array_index(reference_token)); + break; } + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: default: - { - return (m_it.primitive_iterator < other.m_it.primitive_iterator); - } + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); } } - /*! - @brief comparison: less than or equal - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator<=(const iter_impl& other) const - { - return not other.operator < (*this); - } - - /*! - @brief comparison: greater than - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator>(const iter_impl& other) const - { - return not operator<=(other); - } - - /*! - @brief comparison: greater than or equal - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - bool operator>=(const iter_impl& other) const - { - return not operator<(other); - } + return *ptr; + } - /*! - @brief add to iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl& operator+=(difference_type i) + /*! + @brief return a const reference to the pointed to value + @param[in] ptr a JSON value + @return const reference to the JSON value pointed to by the JSON + pointer + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.402 if the array index '-' is used + @throw out_of_range.404 if the JSON pointer can not be resolved + */ + const BasicJsonType& get_unchecked(const BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) { - assert(m_object != nullptr); - - switch (m_object->m_type) + switch (ptr->type()) { - case basic_json::value_t::object: + case detail::value_t::object: { - JSON_THROW(std::domain_error("cannot use offsets with object iterators")); + // use unchecked object access + ptr = &ptr->operator[](reference_token); + break; } - case basic_json::value_t::array: + case detail::value_t::array: { - std::advance(m_it.array_iterator, i); + if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) + { + // "-" cannot be used for const access + JSON_THROW(detail::out_of_range::create(402, "array index '-' (" + std::to_string(ptr->m_value.array->size()) + ") is out of range", *ptr)); + } + + // use unchecked array access + ptr = &ptr->operator[](array_index(reference_token)); break; } + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: default: - { - m_it.primitive_iterator += i; - break; - } + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); } - - return *this; - } - - /*! - @brief subtract from iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl& operator-=(difference_type i) - { - return operator+=(-i); - } - - /*! - @brief add to iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl operator+(difference_type i) - { - auto result = *this; - result += i; - return result; } - /*! - @brief subtract from iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - iter_impl operator-(difference_type i) - { - auto result = *this; - result -= i; - return result; - } + return *ptr; + } - /*! - @brief return difference - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - difference_type operator-(const iter_impl& other) const + /*! + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.402 if the array index '-' is used + @throw out_of_range.404 if the JSON pointer can not be resolved + */ + const BasicJsonType& get_checked(const BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) { - assert(m_object != nullptr); - - switch (m_object->m_type) + switch (ptr->type()) { - case basic_json::value_t::object: + case detail::value_t::object: { - JSON_THROW(std::domain_error("cannot use offsets with object iterators")); + // note: at performs range check + ptr = &ptr->at(reference_token); + break; } - case basic_json::value_t::array: + case detail::value_t::array: { - return m_it.array_iterator - other.m_it.array_iterator; + if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) + { + // "-" always fails the range check + JSON_THROW(detail::out_of_range::create(402, + "array index '-' (" + std::to_string(ptr->m_value.array->size()) + + ") is out of range", *ptr)); + } + + // note: at performs range check + ptr = &ptr->at(array_index(reference_token)); + break; } + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: default: - { - return m_it.primitive_iterator - other.m_it.primitive_iterator; - } + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); } } - /*! - @brief access to successor - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - reference operator[](difference_type n) const - { - assert(m_object != nullptr); + return *ptr; + } - switch (m_object->m_type) + /*! + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + */ + bool contains(const BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) + { + switch (ptr->type()) { - case basic_json::value_t::object: + case detail::value_t::object: { - JSON_THROW(std::domain_error("cannot use operator[] for object iterators")); - } + if (!ptr->contains(reference_token)) + { + // we did not find the key in the object + return false; + } - case basic_json::value_t::array: - { - return *std::next(m_it.array_iterator, n); + ptr = &ptr->operator[](reference_token); + break; } - case basic_json::value_t::null: + case detail::value_t::array: { - JSON_THROW(std::out_of_range("cannot get value")); - } + if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) + { + // "-" always fails the range check + return false; + } + if (JSON_HEDLEY_UNLIKELY(reference_token.size() == 1 && !("0" <= reference_token && reference_token <= "9"))) + { + // invalid char + return false; + } + if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1)) + { + if (JSON_HEDLEY_UNLIKELY(!('1' <= reference_token[0] && reference_token[0] <= '9'))) + { + // first char should be between '1' and '9' + return false; + } + for (std::size_t i = 1; i < reference_token.size(); i++) + { + if (JSON_HEDLEY_UNLIKELY(!('0' <= reference_token[i] && reference_token[i] <= '9'))) + { + // other char should be between '0' and '9' + return false; + } + } + } - default: - { - if (m_it.primitive_iterator.get_value() == -n) + const auto idx = array_index(reference_token); + if (idx >= ptr->size()) { - return *m_object; + // index out of range + return false; } - JSON_THROW(std::out_of_range("cannot get value")); + ptr = &ptr->operator[](idx); + break; } - } - } - - /*! - @brief return the key of an object iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - typename object_t::key_type key() const - { - assert(m_object != nullptr); - if (m_object->is_object()) - { - return m_it.object_iterator->first; + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + { + // we do not expect primitive values if there is still a + // reference token to process + return false; + } } - - JSON_THROW(std::domain_error("cannot use key() for non-object iterators")); - } - - /*! - @brief return the value of an iterator - @pre The iterator is initialized; i.e. `m_object != nullptr`. - */ - reference value() const - { - return operator*(); } - private: - /// associated JSON instance - pointer m_object = nullptr; - /// the actual iterator of the associated instance - internal_iterator m_it = internal_iterator(); - }; + // no reference token left means we found a primitive value + return true; + } /*! - @brief a template for a reverse iterator class - - @tparam Base the base iterator type to reverse. Valid types are @ref - iterator (to create @ref reverse_iterator) and @ref const_iterator (to - create @ref const_reverse_iterator). - - @requirement The class satisfies the following concept requirements: - - [RandomAccessIterator](http://en.cppreference.com/w/cpp/concept/RandomAccessIterator): - The iterator that can be moved to point (forward and backward) to any - element in constant time. - - [OutputIterator](http://en.cppreference.com/w/cpp/concept/OutputIterator): - It is possible to write to the pointed-to element (only if @a Base is - @ref iterator). - - @since version 1.0.0 + @brief split the string input to reference tokens + @note This function is only called by the json_pointer constructor. + All exceptions below are documented there. + @throw parse_error.107 if the pointer is not empty or begins with '/' + @throw parse_error.108 if character '~' is not followed by '0' or '1' */ - template - class json_reverse_iterator : public std::reverse_iterator + static std::vector split(const std::string& reference_string) { - public: - /// shortcut to the reverse iterator adaptor - using base_iterator = std::reverse_iterator; - /// the reference type for the pointed-to element - using reference = typename Base::reference; - - /// create reverse iterator from iterator - json_reverse_iterator(const typename base_iterator::iterator_type& it) noexcept - : base_iterator(it) - {} - - /// create reverse iterator from base class - json_reverse_iterator(const base_iterator& it) noexcept - : base_iterator(it) - {} + std::vector result; - /// post-increment (it++) - json_reverse_iterator operator++(int) + // special case: empty reference string -> no reference tokens + if (reference_string.empty()) { - return base_iterator::operator++(1); - } - - /// pre-increment (++it) - json_reverse_iterator& operator++() - { - base_iterator::operator++(); - return *this; + return result; } - /// post-decrement (it--) - json_reverse_iterator operator--(int) + // check if nonempty reference string begins with slash + if (JSON_HEDLEY_UNLIKELY(reference_string[0] != '/')) { - return base_iterator::operator--(1); + JSON_THROW(detail::parse_error::create(107, 1, "JSON pointer must be empty or begin with '/' - was: '" + reference_string + "'", BasicJsonType())); } - /// pre-decrement (--it) - json_reverse_iterator& operator--() + // extract the reference tokens: + // - slash: position of the last read slash (or end of string) + // - start: position after the previous slash + for ( + // search for the first slash after the first character + std::size_t slash = reference_string.find_first_of('/', 1), + // set the beginning of the first reference token + start = 1; + // we can stop if start == 0 (if slash == std::string::npos) + start != 0; + // set the beginning of the next reference token + // (will eventually be 0 if slash == std::string::npos) + start = (slash == std::string::npos) ? 0 : slash + 1, + // find next slash + slash = reference_string.find_first_of('/', start)) { - base_iterator::operator--(); - return *this; - } + // use the text between the beginning of the reference token + // (start) and the last slash (slash). + auto reference_token = reference_string.substr(start, slash - start); + + // check reference tokens are properly escaped + for (std::size_t pos = reference_token.find_first_of('~'); + pos != std::string::npos; + pos = reference_token.find_first_of('~', pos + 1)) + { + JSON_ASSERT(reference_token[pos] == '~'); - /// add to iterator - json_reverse_iterator& operator+=(difference_type i) - { - base_iterator::operator+=(i); - return *this; - } + // ~ must be followed by 0 or 1 + if (JSON_HEDLEY_UNLIKELY(pos == reference_token.size() - 1 || + (reference_token[pos + 1] != '0' && + reference_token[pos + 1] != '1'))) + { + JSON_THROW(detail::parse_error::create(108, 0, "escape character '~' must be followed with '0' or '1'", BasicJsonType())); + } + } - /// add to iterator - json_reverse_iterator operator+(difference_type i) const - { - auto result = *this; - result += i; - return result; + // finally, store the reference token + detail::unescape(reference_token); + result.push_back(reference_token); } - /// subtract from iterator - json_reverse_iterator operator-(difference_type i) const - { - auto result = *this; - result -= i; - return result; - } + return result; + } - /// return difference - difference_type operator-(const json_reverse_iterator& other) const + private: + /*! + @param[in] reference_string the reference string to the current value + @param[in] value the value to consider + @param[in,out] result the result object to insert values to + @note Empty objects or arrays are flattened to `null`. + */ + static void flatten(const std::string& reference_string, + const BasicJsonType& value, + BasicJsonType& result) + { + switch (value.type()) { - return this->base() - other.base(); - } + case detail::value_t::array: + { + if (value.m_value.array->empty()) + { + // flatten empty array as null + result[reference_string] = nullptr; + } + else + { + // iterate array and use index as reference string + for (std::size_t i = 0; i < value.m_value.array->size(); ++i) + { + flatten(reference_string + "/" + std::to_string(i), + value.m_value.array->operator[](i), result); + } + } + break; + } - /// access to successor - reference operator[](difference_type n) const - { - return *(this->operator+(n)); + case detail::value_t::object: + { + if (value.m_value.object->empty()) + { + // flatten empty object as null + result[reference_string] = nullptr; + } + else + { + // iterate object and use keys as reference string + for (const auto& element : *value.m_value.object) + { + flatten(reference_string + "/" + detail::escape(element.first), element.second, result); + } + } + break; + } + + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + { + // add primitive value with its reference string + result[reference_string] = value; + break; + } } + } - /// return the key of an object iterator - typename object_t::key_type key() const + /*! + @param[in] value flattened JSON + @return unflattened JSON + @throw parse_error.109 if array index is not a number + @throw type_error.314 if value is not an object + @throw type_error.315 if object values are not primitive + @throw type_error.313 if value cannot be unflattened + */ + static BasicJsonType + unflatten(const BasicJsonType& value) + { + if (JSON_HEDLEY_UNLIKELY(!value.is_object())) { - auto it = --this->base(); - return it.key(); + JSON_THROW(detail::type_error::create(314, "only objects can be unflattened", value)); } - /// return the value of an iterator - reference value() const + BasicJsonType result; + + // iterate the JSON object values + for (const auto& element : *value.m_value.object) { - auto it = --this->base(); - return it.operator * (); + if (JSON_HEDLEY_UNLIKELY(!element.second.is_primitive())) + { + JSON_THROW(detail::type_error::create(315, "values in object must be primitive", element.second)); + } + + // assign value to reference pointed to by JSON pointer; Note that if + // the JSON pointer is "" (i.e., points to the whole value), function + // get_and_create returns a reference to result itself. An assignment + // will then create a primitive value. + json_pointer(element.first).get_and_create(result) = element.second; } - }; + return result; + } - private: - ////////////////////// - // lexer and parser // - ////////////////////// + /*! + @brief compares two JSON pointers for equality + @param[in] lhs JSON pointer to compare + @param[in] rhs JSON pointer to compare + @return whether @a lhs is equal to @a rhs + @complexity Linear in the length of the JSON pointer + @exceptionsafety No-throw guarantee: this function never throws exceptions. + */ + friend bool operator==(json_pointer const& lhs, + json_pointer const& rhs) noexcept + { + return lhs.reference_tokens == rhs.reference_tokens; + } /*! - @brief lexical analysis - - This class organizes the lexical analysis during JSON deserialization. The - core of it is a scanner generated by [re2c](http://re2c.org) that - processes a buffer and recognizes tokens according to RFC 7159. - */ - class lexer - { - public: - /// token types for the parser - enum class token_type - { - uninitialized, ///< indicating the scanner is uninitialized - literal_true, ///< the `true` literal - literal_false, ///< the `false` literal - literal_null, ///< the `null` literal - value_string, ///< a string -- use get_string() for actual value - value_unsigned, ///< an unsigned integer -- use get_number() for actual value - value_integer, ///< a signed integer -- use get_number() for actual value - value_float, ///< an floating point number -- use get_number() for actual value - begin_array, ///< the character for array begin `[` - begin_object, ///< the character for object begin `{` - end_array, ///< the character for array end `]` - end_object, ///< the character for object end `}` - name_separator, ///< the name separator `:` - value_separator, ///< the value separator `,` - parse_error, ///< indicating a parse error - end_of_input ///< indicating the end of the input buffer - }; + @brief compares two JSON pointers for inequality + @param[in] lhs JSON pointer to compare + @param[in] rhs JSON pointer to compare + @return whether @a lhs is not equal @a rhs + @complexity Linear in the length of the JSON pointer + @exceptionsafety No-throw guarantee: this function never throws exceptions. + */ + friend bool operator!=(json_pointer const& lhs, + json_pointer const& rhs) noexcept + { + return !(lhs == rhs); + } + + /// the reference tokens + std::vector reference_tokens; +}; +} // namespace nlohmann + +// #include + + +#include +#include + +// #include - /// the char type to use in the lexer - using lexer_char_t = unsigned char; - /// a lexer from a buffer with given length - lexer(const lexer_char_t* buff, const size_t len) noexcept - : m_content(buff) +namespace nlohmann +{ +namespace detail +{ +template +class json_ref +{ + public: + using value_type = BasicJsonType; + + json_ref(value_type&& value) + : owned_value(std::move(value)) + {} + + json_ref(const value_type& value) + : value_ref(&value) + {} + + json_ref(std::initializer_list init) + : owned_value(init) + {} + + template < + class... Args, + enable_if_t::value, int> = 0 > + json_ref(Args && ... args) + : owned_value(std::forward(args)...) + {} + + // class should be movable only + json_ref(json_ref&&) noexcept = default; + json_ref(const json_ref&) = delete; + json_ref& operator=(const json_ref&) = delete; + json_ref& operator=(json_ref&&) = delete; + ~json_ref() = default; + + value_type moved_or_copied() const + { + if (value_ref == nullptr) { - assert(m_content != nullptr); - m_start = m_cursor = m_content; - m_limit = m_content + len; + return std::move(owned_value); } + return *value_ref; + } - /// a lexer from an input stream - explicit lexer(std::istream& s) - : m_stream(&s), m_line_buffer() - { - // immediately abort if stream is erroneous - if (s.fail()) - { - JSON_THROW(std::invalid_argument("stream error")); - } + value_type const& operator*() const + { + return value_ref ? *value_ref : owned_value; + } - // fill buffer - fill_line_buffer(); + value_type const* operator->() const + { + return &** this; + } - // skip UTF-8 byte-order mark - if (m_line_buffer.size() >= 3 and m_line_buffer.substr(0, 3) == "\xEF\xBB\xBF") - { - m_line_buffer[0] = ' '; - m_line_buffer[1] = ' '; - m_line_buffer[2] = ' '; - } - } + private: + mutable value_type owned_value = nullptr; + value_type const* value_ref = nullptr; +}; +} // namespace detail +} // namespace nlohmann - // switch off unwanted functions (due to pointer members) - lexer() = delete; - lexer(const lexer&) = delete; - lexer operator=(const lexer&) = delete; +// #include - /*! - @brief create a string from one or two Unicode code points +// #include - There are two cases: (1) @a codepoint1 is in the Basic Multilingual - Plane (U+0000 through U+FFFF) and @a codepoint2 is 0, or (2) - @a codepoint1 and @a codepoint2 are a UTF-16 surrogate pair to - represent a code point above U+FFFF. +// #include - @param[in] codepoint1 the code point (can be high surrogate) - @param[in] codepoint2 the code point (can be low surrogate or 0) +// #include - @return string representation of the code point; the length of the - result string is between 1 and 4 characters. +// #include - @throw std::out_of_range if code point is > 0x10ffff; example: `"code - points above 0x10FFFF are invalid"` - @throw std::invalid_argument if the low surrogate is invalid; example: - `""missing or wrong low surrogate""` - @complexity Constant. +#include // reverse +#include // array +#include // isnan, isinf +#include // uint8_t, uint16_t, uint32_t, uint64_t +#include // memcpy +#include // numeric_limits +#include // string +#include // move - @see - */ - static string_t to_unicode(const std::size_t codepoint1, - const std::size_t codepoint2 = 0) - { - // calculate the code point from the given code points - std::size_t codepoint = codepoint1; +// #include - // check if codepoint1 is a high surrogate - if (codepoint1 >= 0xD800 and codepoint1 <= 0xDBFF) - { - // check if codepoint2 is a low surrogate - if (codepoint2 >= 0xDC00 and codepoint2 <= 0xDFFF) - { - codepoint = - // high surrogate occupies the most significant 22 bits - (codepoint1 << 10) - // low surrogate occupies the least significant 15 bits - + codepoint2 - // there is still the 0xD800, 0xDC00 and 0x10000 noise - // in the result so we have to subtract with: - // (0xD800 << 10) + DC00 - 0x10000 = 0x35FDC00 - - 0x35FDC00; - } - else - { - JSON_THROW(std::invalid_argument("missing or wrong low surrogate")); - } - } +// #include - string_t result; +// #include - if (codepoint < 0x80) - { - // 1-byte characters: 0xxxxxxx (ASCII) - result.append(1, static_cast(codepoint)); - } - else if (codepoint <= 0x7ff) - { - // 2-byte characters: 110xxxxx 10xxxxxx - result.append(1, static_cast(0xC0 | ((codepoint >> 6) & 0x1F))); - result.append(1, static_cast(0x80 | (codepoint & 0x3F))); - } - else if (codepoint <= 0xffff) - { - // 3-byte characters: 1110xxxx 10xxxxxx 10xxxxxx - result.append(1, static_cast(0xE0 | ((codepoint >> 12) & 0x0F))); - result.append(1, static_cast(0x80 | ((codepoint >> 6) & 0x3F))); - result.append(1, static_cast(0x80 | (codepoint & 0x3F))); - } - else if (codepoint <= 0x10ffff) - { - // 4-byte characters: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - result.append(1, static_cast(0xF0 | ((codepoint >> 18) & 0x07))); - result.append(1, static_cast(0x80 | ((codepoint >> 12) & 0x3F))); - result.append(1, static_cast(0x80 | ((codepoint >> 6) & 0x3F))); - result.append(1, static_cast(0x80 | (codepoint & 0x3F))); - } - else - { - JSON_THROW(std::out_of_range("code points above 0x10FFFF are invalid")); - } - return result; - } +#include // copy +#include // size_t +#include // back_inserter +#include // shared_ptr, make_shared +#include // basic_string +#include // vector - /// return name of values of type token_type (only used for errors) - static std::string token_type_name(const token_type t) - { - switch (t) - { - case token_type::uninitialized: - return ""; - case token_type::literal_true: - return "true literal"; - case token_type::literal_false: - return "false literal"; - case token_type::literal_null: - return "null literal"; - case token_type::value_string: - return "string literal"; - case lexer::token_type::value_unsigned: - case lexer::token_type::value_integer: - case lexer::token_type::value_float: - return "number literal"; - case token_type::begin_array: - return "'['"; - case token_type::begin_object: - return "'{'"; - case token_type::end_array: - return "']'"; - case token_type::end_object: - return "'}'"; - case token_type::name_separator: - return "':'"; - case token_type::value_separator: - return "','"; - case token_type::parse_error: - return ""; - case token_type::end_of_input: - return "end of input"; - default: - { - // catch non-enum values - return "unknown token"; // LCOV_EXCL_LINE - } - } - } +#ifndef JSON_NO_IO + #include // streamsize + #include // basic_ostream +#endif // JSON_NO_IO + +// #include + + +namespace nlohmann +{ +namespace detail +{ +/// abstract output adapter interface +template struct output_adapter_protocol +{ + virtual void write_character(CharType c) = 0; + virtual void write_characters(const CharType* s, std::size_t length) = 0; + virtual ~output_adapter_protocol() = default; + + output_adapter_protocol() = default; + output_adapter_protocol(const output_adapter_protocol&) = default; + output_adapter_protocol(output_adapter_protocol&&) noexcept = default; + output_adapter_protocol& operator=(const output_adapter_protocol&) = default; + output_adapter_protocol& operator=(output_adapter_protocol&&) noexcept = default; +}; + +/// a type to simplify interfaces +template +using output_adapter_t = std::shared_ptr>; + +/// output adapter for byte vectors +template> +class output_vector_adapter : public output_adapter_protocol +{ + public: + explicit output_vector_adapter(std::vector& vec) noexcept + : v(vec) + {} + + void write_character(CharType c) override + { + v.push_back(c); + } + + JSON_HEDLEY_NON_NULL(2) + void write_characters(const CharType* s, std::size_t length) override + { + std::copy(s, s + length, std::back_inserter(v)); + } + + private: + std::vector& v; +}; + +#ifndef JSON_NO_IO +/// output adapter for output streams +template +class output_stream_adapter : public output_adapter_protocol +{ + public: + explicit output_stream_adapter(std::basic_ostream& s) noexcept + : stream(s) + {} + + void write_character(CharType c) override + { + stream.put(c); + } + + JSON_HEDLEY_NON_NULL(2) + void write_characters(const CharType* s, std::size_t length) override + { + stream.write(s, static_cast(length)); + } + + private: + std::basic_ostream& stream; +}; +#endif // JSON_NO_IO + +/// output adapter for basic_string +template> +class output_string_adapter : public output_adapter_protocol +{ + public: + explicit output_string_adapter(StringType& s) noexcept + : str(s) + {} + + void write_character(CharType c) override + { + str.push_back(c); + } + + JSON_HEDLEY_NON_NULL(2) + void write_characters(const CharType* s, std::size_t length) override + { + str.append(s, length); + } + + private: + StringType& str; +}; + +template> +class output_adapter +{ + public: + template> + output_adapter(std::vector& vec) + : oa(std::make_shared>(vec)) {} + +#ifndef JSON_NO_IO + output_adapter(std::basic_ostream& s) + : oa(std::make_shared>(s)) {} +#endif // JSON_NO_IO + + output_adapter(StringType& s) + : oa(std::make_shared>(s)) {} + + operator output_adapter_t() + { + return oa; + } - /*! - This function implements a scanner for JSON. It is specified using - regular expressions that try to follow RFC 7159 as close as possible. - These regular expressions are then translated into a minimized - deterministic finite automaton (DFA) by the tool - [re2c](http://re2c.org). As a result, the translated code for this - function consists of a large block of code with `goto` jumps. + private: + output_adapter_t oa = nullptr; +}; +} // namespace detail +} // namespace nlohmann - @return the class of the next token read from the buffer - @complexity Linear in the length of the input.\n +namespace nlohmann +{ +namespace detail +{ +/////////////////// +// binary writer // +/////////////////// + +/*! +@brief serialization to CBOR and MessagePack values +*/ +template +class binary_writer +{ + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using number_float_t = typename BasicJsonType::number_float_t; - Proposition: The loop below will always terminate for finite input.\n + public: + /*! + @brief create a binary writer + @param[in] adapter output adapter to write to + */ + explicit binary_writer(output_adapter_t adapter) : oa(std::move(adapter)) + { + JSON_ASSERT(oa); + } - Proof (by contradiction): Assume a finite input. To loop forever, the - loop must never hit code with a `break` statement. The only code - snippets without a `break` statement are the continue statements for - whitespace and byte-order-marks. To loop forever, the input must be an - infinite sequence of whitespace or byte-order-marks. This contradicts - the assumption of finite input, q.e.d. - */ - token_type scan() + /*! + @param[in] j JSON value to serialize + @pre j.type() == value_t::object + */ + void write_bson(const BasicJsonType& j) + { + switch (j.type()) { - while (true) + case value_t::object: + { + write_bson_object(*j.m_value.object); + break; + } + + case value_t::null: + case value_t::array: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: { - // pointer for backtracking information - m_marker = nullptr; + JSON_THROW(type_error::create(317, "to serialize to BSON, top-level type must be object, but is " + std::string(j.type_name()), j)); + } + } + } - // remember the begin of the token - m_start = m_cursor; - assert(m_start != nullptr); + /*! + @param[in] j JSON value to serialize + */ + void write_cbor(const BasicJsonType& j) + { + switch (j.type()) + { + case value_t::null: + { + oa->write_character(to_char_type(0xF6)); + break; + } + case value_t::boolean: + { + oa->write_character(j.m_value.boolean + ? to_char_type(0xF5) + : to_char_type(0xF4)); + break; + } + case value_t::number_integer: + { + if (j.m_value.number_integer >= 0) { - lexer_char_t yych; - unsigned int yyaccept = 0; - static const unsigned char yybm[] = + // CBOR does not differentiate between positive signed + // integers and unsigned integers. Therefore, we used the + // code from the value_t::number_unsigned case here. + if (j.m_value.number_integer <= 0x17) { - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 32, 32, 0, 0, 32, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 160, 128, 0, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 192, 192, 192, 192, 192, 192, 192, 192, - 192, 192, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 0, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - }; - if ((m_limit - m_cursor) < 5) + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_integer <= (std::numeric_limits::max)()) { - fill_line_buffer(5); // LCOV_EXCL_LINE + oa->write_character(to_char_type(0x18)); + write_number(static_cast(j.m_value.number_integer)); } - yych = *m_cursor; - if (yybm[0 + yych] & 32) + else if (j.m_value.number_integer <= (std::numeric_limits::max)()) { - goto basic_json_parser_6; + oa->write_character(to_char_type(0x19)); + write_number(static_cast(j.m_value.number_integer)); } - if (yych <= '[') + else if (j.m_value.number_integer <= (std::numeric_limits::max)()) { - if (yych <= '-') - { - if (yych <= '"') - { - if (yych <= 0x00) - { - goto basic_json_parser_2; - } - if (yych <= '!') - { - goto basic_json_parser_4; - } - goto basic_json_parser_9; - } - else - { - if (yych <= '+') - { - goto basic_json_parser_4; - } - if (yych <= ',') - { - goto basic_json_parser_10; - } - goto basic_json_parser_12; - } - } - else - { - if (yych <= '9') - { - if (yych <= '/') - { - goto basic_json_parser_4; - } - if (yych <= '0') - { - goto basic_json_parser_13; - } - goto basic_json_parser_15; - } - else - { - if (yych <= ':') - { - goto basic_json_parser_17; - } - if (yych <= 'Z') - { - goto basic_json_parser_4; - } - goto basic_json_parser_19; - } - } + oa->write_character(to_char_type(0x1A)); + write_number(static_cast(j.m_value.number_integer)); } else { - if (yych <= 'n') - { - if (yych <= 'e') - { - if (yych == ']') - { - goto basic_json_parser_21; - } - goto basic_json_parser_4; - } - else - { - if (yych <= 'f') - { - goto basic_json_parser_23; - } - if (yych <= 'm') - { - goto basic_json_parser_4; - } - goto basic_json_parser_24; - } - } - else - { - if (yych <= 'z') - { - if (yych == 't') - { - goto basic_json_parser_25; - } - goto basic_json_parser_4; - } - else - { - if (yych <= '{') - { - goto basic_json_parser_26; - } - if (yych == '}') - { - goto basic_json_parser_28; - } - goto basic_json_parser_4; - } - } - } -basic_json_parser_2: - ++m_cursor; - { - last_token_type = token_type::end_of_input; - break; - } -basic_json_parser_4: - ++m_cursor; -basic_json_parser_5: - { - last_token_type = token_type::parse_error; - break; - } -basic_json_parser_6: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yybm[0 + yych] & 32) - { - goto basic_json_parser_6; - } - { - continue; - } -basic_json_parser_9: - yyaccept = 0; - yych = *(m_marker = ++m_cursor); - if (yych <= 0x1F) - { - goto basic_json_parser_5; - } - if (yych <= 0x7F) - { - goto basic_json_parser_31; - } - if (yych <= 0xC1) - { - goto basic_json_parser_5; - } - if (yych <= 0xF4) - { - goto basic_json_parser_31; + oa->write_character(to_char_type(0x1B)); + write_number(static_cast(j.m_value.number_integer)); } - goto basic_json_parser_5; -basic_json_parser_10: - ++m_cursor; - { - last_token_type = token_type::value_separator; - break; - } -basic_json_parser_12: - yych = *++m_cursor; - if (yych <= '/') + } + else + { + // The conversions below encode the sign in the first + // byte, and the value is converted to a positive number. + const auto positive_number = -1 - j.m_value.number_integer; + if (j.m_value.number_integer >= -24) { - goto basic_json_parser_5; + write_number(static_cast(0x20 + positive_number)); } - if (yych <= '0') + else if (positive_number <= (std::numeric_limits::max)()) { - goto basic_json_parser_43; + oa->write_character(to_char_type(0x38)); + write_number(static_cast(positive_number)); } - if (yych <= '9') + else if (positive_number <= (std::numeric_limits::max)()) { - goto basic_json_parser_45; + oa->write_character(to_char_type(0x39)); + write_number(static_cast(positive_number)); } - goto basic_json_parser_5; -basic_json_parser_13: - yyaccept = 1; - yych = *(m_marker = ++m_cursor); - if (yych <= '9') + else if (positive_number <= (std::numeric_limits::max)()) { - if (yych == '.') - { - goto basic_json_parser_47; - } - if (yych >= '0') - { - goto basic_json_parser_48; - } + oa->write_character(to_char_type(0x3A)); + write_number(static_cast(positive_number)); } else { - if (yych <= 'E') - { - if (yych >= 'E') - { - goto basic_json_parser_51; - } - } - else - { - if (yych == 'e') - { - goto basic_json_parser_51; - } - } - } -basic_json_parser_14: - { - last_token_type = token_type::value_unsigned; - break; + oa->write_character(to_char_type(0x3B)); + write_number(static_cast(positive_number)); } -basic_json_parser_15: - yyaccept = 1; - m_marker = ++m_cursor; - if ((m_limit - m_cursor) < 3) + } + break; + } + + case value_t::number_unsigned: + { + if (j.m_value.number_unsigned <= 0x17) + { + write_number(static_cast(j.m_value.number_unsigned)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x18)); + write_number(static_cast(j.m_value.number_unsigned)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x19)); + write_number(static_cast(j.m_value.number_unsigned)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x1A)); + write_number(static_cast(j.m_value.number_unsigned)); + } + else + { + oa->write_character(to_char_type(0x1B)); + write_number(static_cast(j.m_value.number_unsigned)); + } + break; + } + + case value_t::number_float: + { + if (std::isnan(j.m_value.number_float)) + { + // NaN is 0xf97e00 in CBOR + oa->write_character(to_char_type(0xF9)); + oa->write_character(to_char_type(0x7E)); + oa->write_character(to_char_type(0x00)); + } + else if (std::isinf(j.m_value.number_float)) + { + // Infinity is 0xf97c00, -Infinity is 0xf9fc00 + oa->write_character(to_char_type(0xf9)); + oa->write_character(j.m_value.number_float > 0 ? to_char_type(0x7C) : to_char_type(0xFC)); + oa->write_character(to_char_type(0x00)); + } + else + { + write_compact_float(j.m_value.number_float, detail::input_format_t::cbor); + } + break; + } + + case value_t::string: + { + // step 1: write control byte and the string length + const auto N = j.m_value.string->size(); + if (N <= 0x17) + { + write_number(static_cast(0x60 + N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x78)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x79)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x7A)); + write_number(static_cast(N)); + } + // LCOV_EXCL_START + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x7B)); + write_number(static_cast(N)); + } + // LCOV_EXCL_STOP + + // step 2: write the string + oa->write_characters( + reinterpret_cast(j.m_value.string->c_str()), + j.m_value.string->size()); + break; + } + + case value_t::array: + { + // step 1: write control byte and the array size + const auto N = j.m_value.array->size(); + if (N <= 0x17) + { + write_number(static_cast(0x80 + N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x98)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x99)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x9A)); + write_number(static_cast(N)); + } + // LCOV_EXCL_START + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x9B)); + write_number(static_cast(N)); + } + // LCOV_EXCL_STOP + + // step 2: write each element + for (const auto& el : *j.m_value.array) + { + write_cbor(el); + } + break; + } + + case value_t::binary: + { + if (j.m_value.binary->has_subtype()) + { + if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) { - fill_line_buffer(3); // LCOV_EXCL_LINE + write_number(static_cast(0xd8)); + write_number(static_cast(j.m_value.binary->subtype())); } - yych = *m_cursor; - if (yybm[0 + yych] & 64) + else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) { - goto basic_json_parser_15; + write_number(static_cast(0xd9)); + write_number(static_cast(j.m_value.binary->subtype())); } - if (yych <= 'D') + else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) { - if (yych == '.') - { - goto basic_json_parser_47; - } - goto basic_json_parser_14; + write_number(static_cast(0xda)); + write_number(static_cast(j.m_value.binary->subtype())); } - else + else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) { - if (yych <= 'E') - { - goto basic_json_parser_51; - } - if (yych == 'e') - { - goto basic_json_parser_51; - } - goto basic_json_parser_14; + write_number(static_cast(0xdb)); + write_number(static_cast(j.m_value.binary->subtype())); } -basic_json_parser_17: - ++m_cursor; + } + + // step 1: write control byte and the binary array size + const auto N = j.m_value.binary->size(); + if (N <= 0x17) + { + write_number(static_cast(0x40 + N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x58)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x59)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x5A)); + write_number(static_cast(N)); + } + // LCOV_EXCL_START + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x5B)); + write_number(static_cast(N)); + } + // LCOV_EXCL_STOP + + // step 2: write each element + oa->write_characters( + reinterpret_cast(j.m_value.binary->data()), + N); + + break; + } + + case value_t::object: + { + // step 1: write control byte and the object size + const auto N = j.m_value.object->size(); + if (N <= 0x17) + { + write_number(static_cast(0xA0 + N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0xB8)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0xB9)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0xBA)); + write_number(static_cast(N)); + } + // LCOV_EXCL_START + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0xBB)); + write_number(static_cast(N)); + } + // LCOV_EXCL_STOP + + // step 2: write each element + for (const auto& el : *j.m_value.object) + { + write_cbor(el.first); + write_cbor(el.second); + } + break; + } + + case value_t::discarded: + default: + break; + } + } + + /*! + @param[in] j JSON value to serialize + */ + void write_msgpack(const BasicJsonType& j) + { + switch (j.type()) + { + case value_t::null: // nil + { + oa->write_character(to_char_type(0xC0)); + break; + } + + case value_t::boolean: // true and false + { + oa->write_character(j.m_value.boolean + ? to_char_type(0xC3) + : to_char_type(0xC2)); + break; + } + + case value_t::number_integer: + { + if (j.m_value.number_integer >= 0) + { + // MessagePack does not differentiate between positive + // signed integers and unsigned integers. Therefore, we used + // the code from the value_t::number_unsigned case here. + if (j.m_value.number_unsigned < 128) { - last_token_type = token_type::name_separator; - break; + // positive fixnum + write_number(static_cast(j.m_value.number_integer)); } -basic_json_parser_19: - ++m_cursor; + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) { - last_token_type = token_type::begin_array; - break; + // uint 8 + oa->write_character(to_char_type(0xCC)); + write_number(static_cast(j.m_value.number_integer)); } -basic_json_parser_21: - ++m_cursor; + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) { - last_token_type = token_type::end_array; - break; + // uint 16 + oa->write_character(to_char_type(0xCD)); + write_number(static_cast(j.m_value.number_integer)); } -basic_json_parser_23: - yyaccept = 0; - yych = *(m_marker = ++m_cursor); - if (yych == 'a') + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) { - goto basic_json_parser_52; + // uint 32 + oa->write_character(to_char_type(0xCE)); + write_number(static_cast(j.m_value.number_integer)); } - goto basic_json_parser_5; -basic_json_parser_24: - yyaccept = 0; - yych = *(m_marker = ++m_cursor); - if (yych == 'u') + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) { - goto basic_json_parser_53; + // uint 64 + oa->write_character(to_char_type(0xCF)); + write_number(static_cast(j.m_value.number_integer)); } - goto basic_json_parser_5; -basic_json_parser_25: - yyaccept = 0; - yych = *(m_marker = ++m_cursor); - if (yych == 'r') + } + else + { + if (j.m_value.number_integer >= -32) { - goto basic_json_parser_54; + // negative fixnum + write_number(static_cast(j.m_value.number_integer)); } - goto basic_json_parser_5; -basic_json_parser_26: - ++m_cursor; + else if (j.m_value.number_integer >= (std::numeric_limits::min)() && + j.m_value.number_integer <= (std::numeric_limits::max)()) { - last_token_type = token_type::begin_object; - break; + // int 8 + oa->write_character(to_char_type(0xD0)); + write_number(static_cast(j.m_value.number_integer)); } -basic_json_parser_28: - ++m_cursor; + else if (j.m_value.number_integer >= (std::numeric_limits::min)() && + j.m_value.number_integer <= (std::numeric_limits::max)()) { - last_token_type = token_type::end_object; - break; + // int 16 + oa->write_character(to_char_type(0xD1)); + write_number(static_cast(j.m_value.number_integer)); } -basic_json_parser_30: - ++m_cursor; - if (m_limit <= m_cursor) + else if (j.m_value.number_integer >= (std::numeric_limits::min)() && + j.m_value.number_integer <= (std::numeric_limits::max)()) { - fill_line_buffer(1); // LCOV_EXCL_LINE + // int 32 + oa->write_character(to_char_type(0xD2)); + write_number(static_cast(j.m_value.number_integer)); } - yych = *m_cursor; -basic_json_parser_31: - if (yybm[0 + yych] & 128) + else if (j.m_value.number_integer >= (std::numeric_limits::min)() && + j.m_value.number_integer <= (std::numeric_limits::max)()) { - goto basic_json_parser_30; + // int 64 + oa->write_character(to_char_type(0xD3)); + write_number(static_cast(j.m_value.number_integer)); } - if (yych <= 0xE0) - { - if (yych <= '\\') - { - if (yych <= 0x1F) - { - goto basic_json_parser_32; - } - if (yych <= '"') - { - goto basic_json_parser_33; - } - goto basic_json_parser_35; - } - else + } + break; + } + + case value_t::number_unsigned: + { + if (j.m_value.number_unsigned < 128) + { + // positive fixnum + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 8 + oa->write_character(to_char_type(0xCC)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 16 + oa->write_character(to_char_type(0xCD)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 32 + oa->write_character(to_char_type(0xCE)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 64 + oa->write_character(to_char_type(0xCF)); + write_number(static_cast(j.m_value.number_integer)); + } + break; + } + + case value_t::number_float: + { + write_compact_float(j.m_value.number_float, detail::input_format_t::msgpack); + break; + } + + case value_t::string: + { + // step 1: write control byte and the string length + const auto N = j.m_value.string->size(); + if (N <= 31) + { + // fixstr + write_number(static_cast(0xA0 | N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // str 8 + oa->write_character(to_char_type(0xD9)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // str 16 + oa->write_character(to_char_type(0xDA)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // str 32 + oa->write_character(to_char_type(0xDB)); + write_number(static_cast(N)); + } + + // step 2: write the string + oa->write_characters( + reinterpret_cast(j.m_value.string->c_str()), + j.m_value.string->size()); + break; + } + + case value_t::array: + { + // step 1: write control byte and the array size + const auto N = j.m_value.array->size(); + if (N <= 15) + { + // fixarray + write_number(static_cast(0x90 | N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // array 16 + oa->write_character(to_char_type(0xDC)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // array 32 + oa->write_character(to_char_type(0xDD)); + write_number(static_cast(N)); + } + + // step 2: write each element + for (const auto& el : *j.m_value.array) + { + write_msgpack(el); + } + break; + } + + case value_t::binary: + { + // step 0: determine if the binary type has a set subtype to + // determine whether or not to use the ext or fixext types + const bool use_ext = j.m_value.binary->has_subtype(); + + // step 1: write control byte and the byte string length + const auto N = j.m_value.binary->size(); + if (N <= (std::numeric_limits::max)()) + { + std::uint8_t output_type{}; + bool fixed = true; + if (use_ext) + { + switch (N) { - if (yych <= 0xC1) - { - goto basic_json_parser_32; - } - if (yych <= 0xDF) - { - goto basic_json_parser_36; - } - goto basic_json_parser_37; + case 1: + output_type = 0xD4; // fixext 1 + break; + case 2: + output_type = 0xD5; // fixext 2 + break; + case 4: + output_type = 0xD6; // fixext 4 + break; + case 8: + output_type = 0xD7; // fixext 8 + break; + case 16: + output_type = 0xD8; // fixext 16 + break; + default: + output_type = 0xC7; // ext 8 + fixed = false; + break; } + } else { - if (yych <= 0xEF) - { - if (yych == 0xED) - { - goto basic_json_parser_39; - } - goto basic_json_parser_38; - } - else - { - if (yych <= 0xF0) - { - goto basic_json_parser_40; - } - if (yych <= 0xF3) - { - goto basic_json_parser_41; - } - if (yych <= 0xF4) - { - goto basic_json_parser_42; - } - } + output_type = 0xC4; // bin 8 + fixed = false; } -basic_json_parser_32: - m_cursor = m_marker; - if (yyaccept <= 1) + + oa->write_character(to_char_type(output_type)); + if (!fixed) { - if (yyaccept == 0) - { - goto basic_json_parser_5; - } - else - { - goto basic_json_parser_14; - } + write_number(static_cast(N)); } - else + } + else if (N <= (std::numeric_limits::max)()) + { + std::uint8_t output_type = use_ext + ? 0xC8 // ext 16 + : 0xC5; // bin 16 + + oa->write_character(to_char_type(output_type)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + std::uint8_t output_type = use_ext + ? 0xC9 // ext 32 + : 0xC6; // bin 32 + + oa->write_character(to_char_type(output_type)); + write_number(static_cast(N)); + } + + // step 1.5: if this is an ext type, write the subtype + if (use_ext) + { + write_number(static_cast(j.m_value.binary->subtype())); + } + + // step 2: write the byte string + oa->write_characters( + reinterpret_cast(j.m_value.binary->data()), + N); + + break; + } + + case value_t::object: + { + // step 1: write control byte and the object size + const auto N = j.m_value.object->size(); + if (N <= 15) + { + // fixmap + write_number(static_cast(0x80 | (N & 0xF))); + } + else if (N <= (std::numeric_limits::max)()) + { + // map 16 + oa->write_character(to_char_type(0xDE)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // map 32 + oa->write_character(to_char_type(0xDF)); + write_number(static_cast(N)); + } + + // step 2: write each element + for (const auto& el : *j.m_value.object) + { + write_msgpack(el.first); + write_msgpack(el.second); + } + break; + } + + case value_t::discarded: + default: + break; + } + } + + /*! + @param[in] j JSON value to serialize + @param[in] use_count whether to use '#' prefixes (optimized format) + @param[in] use_type whether to use '$' prefixes (optimized format) + @param[in] add_prefix whether prefixes need to be used for this value + */ + void write_ubjson(const BasicJsonType& j, const bool use_count, + const bool use_type, const bool add_prefix = true) + { + switch (j.type()) + { + case value_t::null: + { + if (add_prefix) + { + oa->write_character(to_char_type('Z')); + } + break; + } + + case value_t::boolean: + { + if (add_prefix) + { + oa->write_character(j.m_value.boolean + ? to_char_type('T') + : to_char_type('F')); + } + break; + } + + case value_t::number_integer: + { + write_number_with_ubjson_prefix(j.m_value.number_integer, add_prefix); + break; + } + + case value_t::number_unsigned: + { + write_number_with_ubjson_prefix(j.m_value.number_unsigned, add_prefix); + break; + } + + case value_t::number_float: + { + write_number_with_ubjson_prefix(j.m_value.number_float, add_prefix); + break; + } + + case value_t::string: + { + if (add_prefix) + { + oa->write_character(to_char_type('S')); + } + write_number_with_ubjson_prefix(j.m_value.string->size(), true); + oa->write_characters( + reinterpret_cast(j.m_value.string->c_str()), + j.m_value.string->size()); + break; + } + + case value_t::array: + { + if (add_prefix) + { + oa->write_character(to_char_type('[')); + } + + bool prefix_required = true; + if (use_type && !j.m_value.array->empty()) + { + JSON_ASSERT(use_count); + const CharType first_prefix = ubjson_prefix(j.front()); + const bool same_prefix = std::all_of(j.begin() + 1, j.end(), + [this, first_prefix](const BasicJsonType & v) { - if (yyaccept == 2) - { - goto basic_json_parser_44; - } - else - { - goto basic_json_parser_58; - } - } -basic_json_parser_33: - ++m_cursor; + return ubjson_prefix(v) == first_prefix; + }); + + if (same_prefix) { - last_token_type = token_type::value_string; - break; + prefix_required = false; + oa->write_character(to_char_type('$')); + oa->write_character(first_prefix); } -basic_json_parser_35: - ++m_cursor; - if (m_limit <= m_cursor) + } + + if (use_count) + { + oa->write_character(to_char_type('#')); + write_number_with_ubjson_prefix(j.m_value.array->size(), true); + } + + for (const auto& el : *j.m_value.array) + { + write_ubjson(el, use_count, use_type, prefix_required); + } + + if (!use_count) + { + oa->write_character(to_char_type(']')); + } + + break; + } + + case value_t::binary: + { + if (add_prefix) + { + oa->write_character(to_char_type('[')); + } + + if (use_type && !j.m_value.binary->empty()) + { + JSON_ASSERT(use_count); + oa->write_character(to_char_type('$')); + oa->write_character('U'); + } + + if (use_count) + { + oa->write_character(to_char_type('#')); + write_number_with_ubjson_prefix(j.m_value.binary->size(), true); + } + + if (use_type) + { + oa->write_characters( + reinterpret_cast(j.m_value.binary->data()), + j.m_value.binary->size()); + } + else + { + for (size_t i = 0; i < j.m_value.binary->size(); ++i) { - fill_line_buffer(1); // LCOV_EXCL_LINE + oa->write_character(to_char_type('U')); + oa->write_character(j.m_value.binary->data()[i]); } - yych = *m_cursor; - if (yych <= 'e') + } + + if (!use_count) + { + oa->write_character(to_char_type(']')); + } + + break; + } + + case value_t::object: + { + if (add_prefix) + { + oa->write_character(to_char_type('{')); + } + + bool prefix_required = true; + if (use_type && !j.m_value.object->empty()) + { + JSON_ASSERT(use_count); + const CharType first_prefix = ubjson_prefix(j.front()); + const bool same_prefix = std::all_of(j.begin(), j.end(), + [this, first_prefix](const BasicJsonType & v) { - if (yych <= '/') - { - if (yych == '"') - { - goto basic_json_parser_30; - } - if (yych <= '.') - { - goto basic_json_parser_32; - } - goto basic_json_parser_30; - } - else - { - if (yych <= '\\') - { - if (yych <= '[') - { - goto basic_json_parser_32; - } - goto basic_json_parser_30; - } - else - { - if (yych == 'b') - { - goto basic_json_parser_30; - } - goto basic_json_parser_32; - } - } - } - else - { - if (yych <= 'q') - { - if (yych <= 'f') - { - goto basic_json_parser_30; - } - if (yych == 'n') - { - goto basic_json_parser_30; - } - goto basic_json_parser_32; - } - else - { - if (yych <= 's') - { - if (yych <= 'r') - { - goto basic_json_parser_30; - } - goto basic_json_parser_32; - } - else - { - if (yych <= 't') - { - goto basic_json_parser_30; - } - if (yych <= 'u') - { - goto basic_json_parser_55; - } - goto basic_json_parser_32; - } - } - } -basic_json_parser_36: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= 0x7F) - { - goto basic_json_parser_32; - } - if (yych <= 0xBF) - { - goto basic_json_parser_30; - } - goto basic_json_parser_32; -basic_json_parser_37: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= 0x9F) - { - goto basic_json_parser_32; - } - if (yych <= 0xBF) - { - goto basic_json_parser_36; - } - goto basic_json_parser_32; -basic_json_parser_38: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= 0x7F) - { - goto basic_json_parser_32; - } - if (yych <= 0xBF) - { - goto basic_json_parser_36; - } - goto basic_json_parser_32; -basic_json_parser_39: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= 0x7F) - { - goto basic_json_parser_32; - } - if (yych <= 0x9F) - { - goto basic_json_parser_36; - } - goto basic_json_parser_32; -basic_json_parser_40: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= 0x8F) - { - goto basic_json_parser_32; - } - if (yych <= 0xBF) - { - goto basic_json_parser_38; - } - goto basic_json_parser_32; -basic_json_parser_41: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= 0x7F) - { - goto basic_json_parser_32; - } - if (yych <= 0xBF) - { - goto basic_json_parser_38; - } - goto basic_json_parser_32; -basic_json_parser_42: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= 0x7F) - { - goto basic_json_parser_32; - } - if (yych <= 0x8F) - { - goto basic_json_parser_38; - } - goto basic_json_parser_32; -basic_json_parser_43: - yyaccept = 2; - yych = *(m_marker = ++m_cursor); - if (yych <= '9') - { - if (yych == '.') - { - goto basic_json_parser_47; - } - if (yych >= '0') - { - goto basic_json_parser_48; - } - } - else - { - if (yych <= 'E') - { - if (yych >= 'E') - { - goto basic_json_parser_51; - } - } - else - { - if (yych == 'e') - { - goto basic_json_parser_51; - } - } - } -basic_json_parser_44: - { - last_token_type = token_type::value_integer; - break; - } -basic_json_parser_45: - yyaccept = 2; - m_marker = ++m_cursor; - if ((m_limit - m_cursor) < 3) - { - fill_line_buffer(3); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= '9') - { - if (yych == '.') - { - goto basic_json_parser_47; - } - if (yych <= '/') - { - goto basic_json_parser_44; - } - goto basic_json_parser_45; - } - else - { - if (yych <= 'E') - { - if (yych <= 'D') - { - goto basic_json_parser_44; - } - goto basic_json_parser_51; - } - else - { - if (yych == 'e') - { - goto basic_json_parser_51; - } - goto basic_json_parser_44; - } - } -basic_json_parser_47: - yych = *++m_cursor; - if (yych <= '/') - { - goto basic_json_parser_32; - } - if (yych <= '9') - { - goto basic_json_parser_56; - } - goto basic_json_parser_32; -basic_json_parser_48: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= '/') - { - goto basic_json_parser_50; - } - if (yych <= '9') - { - goto basic_json_parser_48; - } -basic_json_parser_50: - { - last_token_type = token_type::parse_error; - break; - } -basic_json_parser_51: - yych = *++m_cursor; - if (yych <= ',') - { - if (yych == '+') - { - goto basic_json_parser_59; - } - goto basic_json_parser_32; - } - else - { - if (yych <= '-') - { - goto basic_json_parser_59; - } - if (yych <= '/') - { - goto basic_json_parser_32; - } - if (yych <= '9') - { - goto basic_json_parser_60; - } - goto basic_json_parser_32; - } -basic_json_parser_52: - yych = *++m_cursor; - if (yych == 'l') - { - goto basic_json_parser_62; - } - goto basic_json_parser_32; -basic_json_parser_53: - yych = *++m_cursor; - if (yych == 'l') - { - goto basic_json_parser_63; - } - goto basic_json_parser_32; -basic_json_parser_54: - yych = *++m_cursor; - if (yych == 'u') - { - goto basic_json_parser_64; - } - goto basic_json_parser_32; -basic_json_parser_55: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= '@') - { - if (yych <= '/') - { - goto basic_json_parser_32; - } - if (yych <= '9') - { - goto basic_json_parser_65; - } - goto basic_json_parser_32; - } - else - { - if (yych <= 'F') - { - goto basic_json_parser_65; - } - if (yych <= '`') - { - goto basic_json_parser_32; - } - if (yych <= 'f') - { - goto basic_json_parser_65; - } - goto basic_json_parser_32; - } -basic_json_parser_56: - yyaccept = 3; - m_marker = ++m_cursor; - if ((m_limit - m_cursor) < 3) - { - fill_line_buffer(3); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= 'D') - { - if (yych <= '/') - { - goto basic_json_parser_58; - } - if (yych <= '9') - { - goto basic_json_parser_56; - } - } - else - { - if (yych <= 'E') - { - goto basic_json_parser_51; - } - if (yych == 'e') - { - goto basic_json_parser_51; - } - } -basic_json_parser_58: - { - last_token_type = token_type::value_float; - break; - } -basic_json_parser_59: - yych = *++m_cursor; - if (yych <= '/') - { - goto basic_json_parser_32; - } - if (yych >= ':') - { - goto basic_json_parser_32; - } -basic_json_parser_60: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= '/') - { - goto basic_json_parser_58; - } - if (yych <= '9') - { - goto basic_json_parser_60; - } - goto basic_json_parser_58; -basic_json_parser_62: - yych = *++m_cursor; - if (yych == 's') - { - goto basic_json_parser_66; - } - goto basic_json_parser_32; -basic_json_parser_63: - yych = *++m_cursor; - if (yych == 'l') - { - goto basic_json_parser_67; - } - goto basic_json_parser_32; -basic_json_parser_64: - yych = *++m_cursor; - if (yych == 'e') - { - goto basic_json_parser_69; - } - goto basic_json_parser_32; -basic_json_parser_65: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= '@') - { - if (yych <= '/') - { - goto basic_json_parser_32; - } - if (yych <= '9') - { - goto basic_json_parser_71; - } - goto basic_json_parser_32; - } - else - { - if (yych <= 'F') - { - goto basic_json_parser_71; - } - if (yych <= '`') - { - goto basic_json_parser_32; - } - if (yych <= 'f') - { - goto basic_json_parser_71; - } - goto basic_json_parser_32; - } -basic_json_parser_66: - yych = *++m_cursor; - if (yych == 'e') - { - goto basic_json_parser_72; - } - goto basic_json_parser_32; -basic_json_parser_67: - ++m_cursor; - { - last_token_type = token_type::literal_null; - break; - } -basic_json_parser_69: - ++m_cursor; - { - last_token_type = token_type::literal_true; - break; - } -basic_json_parser_71: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= '@') - { - if (yych <= '/') - { - goto basic_json_parser_32; - } - if (yych <= '9') - { - goto basic_json_parser_74; - } - goto basic_json_parser_32; - } - else - { - if (yych <= 'F') - { - goto basic_json_parser_74; - } - if (yych <= '`') - { - goto basic_json_parser_32; - } - if (yych <= 'f') - { - goto basic_json_parser_74; - } - goto basic_json_parser_32; - } -basic_json_parser_72: - ++m_cursor; - { - last_token_type = token_type::literal_false; - break; - } -basic_json_parser_74: - ++m_cursor; - if (m_limit <= m_cursor) - { - fill_line_buffer(1); // LCOV_EXCL_LINE - } - yych = *m_cursor; - if (yych <= '@') - { - if (yych <= '/') - { - goto basic_json_parser_32; - } - if (yych <= '9') - { - goto basic_json_parser_30; - } - goto basic_json_parser_32; - } - else + return ubjson_prefix(v) == first_prefix; + }); + + if (same_prefix) { - if (yych <= 'F') - { - goto basic_json_parser_30; - } - if (yych <= '`') - { - goto basic_json_parser_32; - } - if (yych <= 'f') - { - goto basic_json_parser_30; - } - goto basic_json_parser_32; + prefix_required = false; + oa->write_character(to_char_type('$')); + oa->write_character(first_prefix); } } + if (use_count) + { + oa->write_character(to_char_type('#')); + write_number_with_ubjson_prefix(j.m_value.object->size(), true); + } + + for (const auto& el : *j.m_value.object) + { + write_number_with_ubjson_prefix(el.first.size(), true); + oa->write_characters( + reinterpret_cast(el.first.c_str()), + el.first.size()); + write_ubjson(el.second, use_count, use_type, prefix_required); + } + + if (!use_count) + { + oa->write_character(to_char_type('}')); + } + + break; + } + + case value_t::discarded: + default: + break; + } + } + + private: + ////////// + // BSON // + ////////// + + /*! + @return The size of a BSON document entry header, including the id marker + and the entry name size (and its null-terminator). + */ + static std::size_t calc_bson_entry_header_size(const string_t& name, const BasicJsonType& j) + { + const auto it = name.find(static_cast(0)); + if (JSON_HEDLEY_UNLIKELY(it != BasicJsonType::string_t::npos)) + { + JSON_THROW(out_of_range::create(409, "BSON key cannot contain code point U+0000 (at byte " + std::to_string(it) + ")", j)); + static_cast(j); + } + + return /*id*/ 1ul + name.size() + /*zero-terminator*/1u; + } + + /*! + @brief Writes the given @a element_type and @a name to the output adapter + */ + void write_bson_entry_header(const string_t& name, + const std::uint8_t element_type) + { + oa->write_character(to_char_type(element_type)); // boolean + oa->write_characters( + reinterpret_cast(name.c_str()), + name.size() + 1u); + } + + /*! + @brief Writes a BSON element with key @a name and boolean value @a value + */ + void write_bson_boolean(const string_t& name, + const bool value) + { + write_bson_entry_header(name, 0x08); + oa->write_character(value ? to_char_type(0x01) : to_char_type(0x00)); + } + + /*! + @brief Writes a BSON element with key @a name and double value @a value + */ + void write_bson_double(const string_t& name, + const double value) + { + write_bson_entry_header(name, 0x01); + write_number(value); + } + + /*! + @return The size of the BSON-encoded string in @a value + */ + static std::size_t calc_bson_string_size(const string_t& value) + { + return sizeof(std::int32_t) + value.size() + 1ul; + } + + /*! + @brief Writes a BSON element with key @a name and string value @a value + */ + void write_bson_string(const string_t& name, + const string_t& value) + { + write_bson_entry_header(name, 0x02); + + write_number(static_cast(value.size() + 1ul)); + oa->write_characters( + reinterpret_cast(value.c_str()), + value.size() + 1); + } + + /*! + @brief Writes a BSON element with key @a name and null value + */ + void write_bson_null(const string_t& name) + { + write_bson_entry_header(name, 0x0A); + } + + /*! + @return The size of the BSON-encoded integer @a value + */ + static std::size_t calc_bson_integer_size(const std::int64_t value) + { + return (std::numeric_limits::min)() <= value && value <= (std::numeric_limits::max)() + ? sizeof(std::int32_t) + : sizeof(std::int64_t); + } + + /*! + @brief Writes a BSON element with key @a name and integer @a value + */ + void write_bson_integer(const string_t& name, + const std::int64_t value) + { + if ((std::numeric_limits::min)() <= value && value <= (std::numeric_limits::max)()) + { + write_bson_entry_header(name, 0x10); // int32 + write_number(static_cast(value)); + } + else + { + write_bson_entry_header(name, 0x12); // int64 + write_number(static_cast(value)); + } + } + + /*! + @return The size of the BSON-encoded unsigned integer in @a j + */ + static constexpr std::size_t calc_bson_unsigned_size(const std::uint64_t value) noexcept + { + return (value <= static_cast((std::numeric_limits::max)())) + ? sizeof(std::int32_t) + : sizeof(std::int64_t); + } + + /*! + @brief Writes a BSON element with key @a name and unsigned @a value + */ + void write_bson_unsigned(const string_t& name, + const BasicJsonType& j) + { + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + write_bson_entry_header(name, 0x10 /* int32 */); + write_number(static_cast(j.m_value.number_unsigned)); + } + else if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + write_bson_entry_header(name, 0x12 /* int64 */); + write_number(static_cast(j.m_value.number_unsigned)); + } + else + { + JSON_THROW(out_of_range::create(407, "integer number " + std::to_string(j.m_value.number_unsigned) + " cannot be represented by BSON as it does not fit int64", j)); + } + } + + /*! + @brief Writes a BSON element with key @a name and object @a value + */ + void write_bson_object_entry(const string_t& name, + const typename BasicJsonType::object_t& value) + { + write_bson_entry_header(name, 0x03); // object + write_bson_object(value); + } + + /*! + @return The size of the BSON-encoded array @a value + */ + static std::size_t calc_bson_array_size(const typename BasicJsonType::array_t& value) + { + std::size_t array_index = 0ul; + + const std::size_t embedded_document_size = std::accumulate(std::begin(value), std::end(value), static_cast(0), [&array_index](std::size_t result, const typename BasicJsonType::array_t::value_type & el) + { + return result + calc_bson_element_size(std::to_string(array_index++), el); + }); + + return sizeof(std::int32_t) + embedded_document_size + 1ul; + } + + /*! + @return The size of the BSON-encoded binary array @a value + */ + static std::size_t calc_bson_binary_size(const typename BasicJsonType::binary_t& value) + { + return sizeof(std::int32_t) + value.size() + 1ul; + } + + /*! + @brief Writes a BSON element with key @a name and array @a value + */ + void write_bson_array(const string_t& name, + const typename BasicJsonType::array_t& value) + { + write_bson_entry_header(name, 0x04); // array + write_number(static_cast(calc_bson_array_size(value))); + + std::size_t array_index = 0ul; + + for (const auto& el : value) + { + write_bson_element(std::to_string(array_index++), el); + } + + oa->write_character(to_char_type(0x00)); + } + + /*! + @brief Writes a BSON element with key @a name and binary value @a value + */ + void write_bson_binary(const string_t& name, + const binary_t& value) + { + write_bson_entry_header(name, 0x05); + + write_number(static_cast(value.size())); + write_number(value.has_subtype() ? static_cast(value.subtype()) : static_cast(0x00)); + + oa->write_characters(reinterpret_cast(value.data()), value.size()); + } + + /*! + @brief Calculates the size necessary to serialize the JSON value @a j with its @a name + @return The calculated size for the BSON document entry for @a j with the given @a name. + */ + static std::size_t calc_bson_element_size(const string_t& name, + const BasicJsonType& j) + { + const auto header_size = calc_bson_entry_header_size(name, j); + switch (j.type()) + { + case value_t::object: + return header_size + calc_bson_object_size(*j.m_value.object); + + case value_t::array: + return header_size + calc_bson_array_size(*j.m_value.array); + + case value_t::binary: + return header_size + calc_bson_binary_size(*j.m_value.binary); + + case value_t::boolean: + return header_size + 1ul; + + case value_t::number_float: + return header_size + 8ul; + + case value_t::number_integer: + return header_size + calc_bson_integer_size(j.m_value.number_integer); + + case value_t::number_unsigned: + return header_size + calc_bson_unsigned_size(j.m_value.number_unsigned); + + case value_t::string: + return header_size + calc_bson_string_size(*j.m_value.string); + + case value_t::null: + return header_size + 0ul; + + // LCOV_EXCL_START + case value_t::discarded: + default: + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) + return 0ul; + // LCOV_EXCL_STOP + } + } + + /*! + @brief Serializes the JSON value @a j to BSON and associates it with the + key @a name. + @param name The name to associate with the JSON entity @a j within the + current BSON document + */ + void write_bson_element(const string_t& name, + const BasicJsonType& j) + { + switch (j.type()) + { + case value_t::object: + return write_bson_object_entry(name, *j.m_value.object); + + case value_t::array: + return write_bson_array(name, *j.m_value.array); + + case value_t::binary: + return write_bson_binary(name, *j.m_value.binary); + + case value_t::boolean: + return write_bson_boolean(name, j.m_value.boolean); + + case value_t::number_float: + return write_bson_double(name, j.m_value.number_float); + + case value_t::number_integer: + return write_bson_integer(name, j.m_value.number_integer); + + case value_t::number_unsigned: + return write_bson_unsigned(name, j); + + case value_t::string: + return write_bson_string(name, *j.m_value.string); + + case value_t::null: + return write_bson_null(name); + + // LCOV_EXCL_START + case value_t::discarded: + default: + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) + return; + // LCOV_EXCL_STOP + } + } + + /*! + @brief Calculates the size of the BSON serialization of the given + JSON-object @a j. + @param[in] value JSON value to serialize + @pre value.type() == value_t::object + */ + static std::size_t calc_bson_object_size(const typename BasicJsonType::object_t& value) + { + std::size_t document_size = std::accumulate(value.begin(), value.end(), static_cast(0), + [](size_t result, const typename BasicJsonType::object_t::value_type & el) + { + return result += calc_bson_element_size(el.first, el.second); + }); + + return sizeof(std::int32_t) + document_size + 1ul; + } + + /*! + @param[in] value JSON value to serialize + @pre value.type() == value_t::object + */ + void write_bson_object(const typename BasicJsonType::object_t& value) + { + write_number(static_cast(calc_bson_object_size(value))); + + for (const auto& el : value) + { + write_bson_element(el.first, el.second); + } + + oa->write_character(to_char_type(0x00)); + } + + ////////// + // CBOR // + ////////// + + static constexpr CharType get_cbor_float_prefix(float /*unused*/) + { + return to_char_type(0xFA); // Single-Precision Float + } + + static constexpr CharType get_cbor_float_prefix(double /*unused*/) + { + return to_char_type(0xFB); // Double-Precision Float + } + + ///////////// + // MsgPack // + ///////////// + + static constexpr CharType get_msgpack_float_prefix(float /*unused*/) + { + return to_char_type(0xCA); // float 32 + } + + static constexpr CharType get_msgpack_float_prefix(double /*unused*/) + { + return to_char_type(0xCB); // float 64 + } + + //////////// + // UBJSON // + //////////// + + // UBJSON: write number (floating point) + template::value, int>::type = 0> + void write_number_with_ubjson_prefix(const NumberType n, + const bool add_prefix) + { + if (add_prefix) + { + oa->write_character(get_ubjson_float_prefix(n)); + } + write_number(n); + } + + // UBJSON: write number (unsigned integer) + template::value, int>::type = 0> + void write_number_with_ubjson_prefix(const NumberType n, + const bool add_prefix) + { + if (n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('i')); // int8 + } + write_number(static_cast(n)); + } + else if (n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('U')); // uint8 + } + write_number(static_cast(n)); + } + else if (n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('I')); // int16 + } + write_number(static_cast(n)); + } + else if (n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('l')); // int32 + } + write_number(static_cast(n)); + } + else if (n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('L')); // int64 + } + write_number(static_cast(n)); + } + else + { + if (add_prefix) + { + oa->write_character(to_char_type('H')); // high-precision number + } + + const auto number = BasicJsonType(n).dump(); + write_number_with_ubjson_prefix(number.size(), true); + for (std::size_t i = 0; i < number.size(); ++i) + { + oa->write_character(to_char_type(static_cast(number[i]))); + } + } + } + + // UBJSON: write number (signed integer) + template < typename NumberType, typename std::enable_if < + std::is_signed::value&& + !std::is_floating_point::value, int >::type = 0 > + void write_number_with_ubjson_prefix(const NumberType n, + const bool add_prefix) + { + if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('i')); // int8 + } + write_number(static_cast(n)); + } + else if (static_cast((std::numeric_limits::min)()) <= n && n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('U')); // uint8 + } + write_number(static_cast(n)); + } + else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('I')); // int16 + } + write_number(static_cast(n)); + } + else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('l')); // int32 + } + write_number(static_cast(n)); + } + else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('L')); // int64 + } + write_number(static_cast(n)); + } + // LCOV_EXCL_START + else + { + if (add_prefix) + { + oa->write_character(to_char_type('H')); // high-precision number + } + + const auto number = BasicJsonType(n).dump(); + write_number_with_ubjson_prefix(number.size(), true); + for (std::size_t i = 0; i < number.size(); ++i) + { + oa->write_character(to_char_type(static_cast(number[i]))); + } + } + // LCOV_EXCL_STOP + } + + /*! + @brief determine the type prefix of container values + */ + CharType ubjson_prefix(const BasicJsonType& j) const noexcept + { + switch (j.type()) + { + case value_t::null: + return 'Z'; + + case value_t::boolean: + return j.m_value.boolean ? 'T' : 'F'; + + case value_t::number_integer: + { + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'i'; + } + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'U'; + } + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'I'; + } + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'l'; + } + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'L'; + } + // anything else is treated as high-precision number + return 'H'; // LCOV_EXCL_LINE + } + + case value_t::number_unsigned: + { + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'i'; + } + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'U'; + } + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'I'; + } + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'l'; + } + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'L'; + } + // anything else is treated as high-precision number + return 'H'; // LCOV_EXCL_LINE + } + + case value_t::number_float: + return get_ubjson_float_prefix(j.m_value.number_float); + + case value_t::string: + return 'S'; + + case value_t::array: // fallthrough + case value_t::binary: + return '['; + + case value_t::object: + return '{'; + + case value_t::discarded: + default: // discarded values + return 'N'; + } + } + + static constexpr CharType get_ubjson_float_prefix(float /*unused*/) + { + return 'd'; // float 32 + } + + static constexpr CharType get_ubjson_float_prefix(double /*unused*/) + { + return 'D'; // float 64 + } + + /////////////////////// + // Utility functions // + /////////////////////// + + /* + @brief write a number to output input + @param[in] n number of type @a NumberType + @tparam NumberType the type of the number + @tparam OutputIsLittleEndian Set to true if output data is + required to be little endian + @note This function needs to respect the system's endianness, because bytes + in CBOR, MessagePack, and UBJSON are stored in network order (big + endian) and therefore need reordering on little endian systems. + */ + template + void write_number(const NumberType n) + { + // step 1: write number to array of length NumberType + std::array vec{}; + std::memcpy(vec.data(), &n, sizeof(NumberType)); + + // step 2: write array to output (with possible reordering) + if (is_little_endian != OutputIsLittleEndian) + { + // reverse byte order prior to conversion if necessary + std::reverse(vec.begin(), vec.end()); + } + + oa->write_characters(vec.data(), sizeof(NumberType)); + } + + void write_compact_float(const number_float_t n, detail::input_format_t format) + { +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wfloat-equal" +#endif + if (static_cast(n) >= static_cast(std::numeric_limits::lowest()) && + static_cast(n) <= static_cast((std::numeric_limits::max)()) && + static_cast(static_cast(n)) == static_cast(n)) + { + oa->write_character(format == detail::input_format_t::cbor + ? get_cbor_float_prefix(static_cast(n)) + : get_msgpack_float_prefix(static_cast(n))); + write_number(static_cast(n)); + } + else + { + oa->write_character(format == detail::input_format_t::cbor + ? get_cbor_float_prefix(n) + : get_msgpack_float_prefix(n)); + write_number(n); + } +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + } + + public: + // The following to_char_type functions are implement the conversion + // between uint8_t and CharType. In case CharType is not unsigned, + // such a conversion is required to allow values greater than 128. + // See for a discussion. + template < typename C = CharType, + enable_if_t < std::is_signed::value && std::is_signed::value > * = nullptr > + static constexpr CharType to_char_type(std::uint8_t x) noexcept + { + return *reinterpret_cast(&x); + } + + template < typename C = CharType, + enable_if_t < std::is_signed::value && std::is_unsigned::value > * = nullptr > + static CharType to_char_type(std::uint8_t x) noexcept + { + static_assert(sizeof(std::uint8_t) == sizeof(CharType), "size of CharType must be equal to std::uint8_t"); + static_assert(std::is_trivial::value, "CharType must be trivial"); + CharType result; + std::memcpy(&result, &x, sizeof(x)); + return result; + } + + template::value>* = nullptr> + static constexpr CharType to_char_type(std::uint8_t x) noexcept + { + return x; + } + + template < typename InputCharType, typename C = CharType, + enable_if_t < + std::is_signed::value && + std::is_signed::value && + std::is_same::type>::value + > * = nullptr > + static constexpr CharType to_char_type(InputCharType x) noexcept + { + return x; + } + + private: + /// whether we can assume little endianness + const bool is_little_endian = little_endianness(); + + /// the output + output_adapter_t oa = nullptr; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + + +#include // reverse, remove, fill, find, none_of +#include // array +#include // localeconv, lconv +#include // labs, isfinite, isnan, signbit +#include // size_t, ptrdiff_t +#include // uint8_t +#include // snprintf +#include // numeric_limits +#include // string, char_traits +#include // setfill, setw +#include // is_same +#include // move + +// #include + + +#include // array +#include // signbit, isfinite +#include // intN_t, uintN_t +#include // memcpy, memmove +#include // numeric_limits +#include // conditional + +// #include + + +namespace nlohmann +{ +namespace detail +{ + +/*! +@brief implements the Grisu2 algorithm for binary to decimal floating-point +conversion. +This implementation is a slightly modified version of the reference +implementation which may be obtained from +http://florian.loitsch.com/publications (bench.tar.gz). +The code is distributed under the MIT license, Copyright (c) 2009 Florian Loitsch. +For a detailed description of the algorithm see: +[1] Loitsch, "Printing Floating-Point Numbers Quickly and Accurately with + Integers", Proceedings of the ACM SIGPLAN 2010 Conference on Programming + Language Design and Implementation, PLDI 2010 +[2] Burger, Dybvig, "Printing Floating-Point Numbers Quickly and Accurately", + Proceedings of the ACM SIGPLAN 1996 Conference on Programming Language + Design and Implementation, PLDI 1996 +*/ +namespace dtoa_impl +{ + +template +Target reinterpret_bits(const Source source) +{ + static_assert(sizeof(Target) == sizeof(Source), "size mismatch"); + + Target target; + std::memcpy(&target, &source, sizeof(Source)); + return target; +} + +struct diyfp // f * 2^e +{ + static constexpr int kPrecision = 64; // = q + + std::uint64_t f = 0; + int e = 0; + + constexpr diyfp(std::uint64_t f_, int e_) noexcept : f(f_), e(e_) {} + + /*! + @brief returns x - y + @pre x.e == y.e and x.f >= y.f + */ + static diyfp sub(const diyfp& x, const diyfp& y) noexcept + { + JSON_ASSERT(x.e == y.e); + JSON_ASSERT(x.f >= y.f); + + return {x.f - y.f, x.e}; + } + + /*! + @brief returns x * y + @note The result is rounded. (Only the upper q bits are returned.) + */ + static diyfp mul(const diyfp& x, const diyfp& y) noexcept + { + static_assert(kPrecision == 64, "internal error"); + + // Computes: + // f = round((x.f * y.f) / 2^q) + // e = x.e + y.e + q + + // Emulate the 64-bit * 64-bit multiplication: + // + // p = u * v + // = (u_lo + 2^32 u_hi) (v_lo + 2^32 v_hi) + // = (u_lo v_lo ) + 2^32 ((u_lo v_hi ) + (u_hi v_lo )) + 2^64 (u_hi v_hi ) + // = (p0 ) + 2^32 ((p1 ) + (p2 )) + 2^64 (p3 ) + // = (p0_lo + 2^32 p0_hi) + 2^32 ((p1_lo + 2^32 p1_hi) + (p2_lo + 2^32 p2_hi)) + 2^64 (p3 ) + // = (p0_lo ) + 2^32 (p0_hi + p1_lo + p2_lo ) + 2^64 (p1_hi + p2_hi + p3) + // = (p0_lo ) + 2^32 (Q ) + 2^64 (H ) + // = (p0_lo ) + 2^32 (Q_lo + 2^32 Q_hi ) + 2^64 (H ) + // + // (Since Q might be larger than 2^32 - 1) + // + // = (p0_lo + 2^32 Q_lo) + 2^64 (Q_hi + H) + // + // (Q_hi + H does not overflow a 64-bit int) + // + // = p_lo + 2^64 p_hi + + const std::uint64_t u_lo = x.f & 0xFFFFFFFFu; + const std::uint64_t u_hi = x.f >> 32u; + const std::uint64_t v_lo = y.f & 0xFFFFFFFFu; + const std::uint64_t v_hi = y.f >> 32u; + + const std::uint64_t p0 = u_lo * v_lo; + const std::uint64_t p1 = u_lo * v_hi; + const std::uint64_t p2 = u_hi * v_lo; + const std::uint64_t p3 = u_hi * v_hi; + + const std::uint64_t p0_hi = p0 >> 32u; + const std::uint64_t p1_lo = p1 & 0xFFFFFFFFu; + const std::uint64_t p1_hi = p1 >> 32u; + const std::uint64_t p2_lo = p2 & 0xFFFFFFFFu; + const std::uint64_t p2_hi = p2 >> 32u; + + std::uint64_t Q = p0_hi + p1_lo + p2_lo; + + // The full product might now be computed as + // + // p_hi = p3 + p2_hi + p1_hi + (Q >> 32) + // p_lo = p0_lo + (Q << 32) + // + // But in this particular case here, the full p_lo is not required. + // Effectively we only need to add the highest bit in p_lo to p_hi (and + // Q_hi + 1 does not overflow). + + Q += std::uint64_t{1} << (64u - 32u - 1u); // round, ties up + + const std::uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32u); + + return {h, x.e + y.e + 64}; + } + + /*! + @brief normalize x such that the significand is >= 2^(q-1) + @pre x.f != 0 + */ + static diyfp normalize(diyfp x) noexcept + { + JSON_ASSERT(x.f != 0); + + while ((x.f >> 63u) == 0) + { + x.f <<= 1u; + x.e--; + } + + return x; + } + + /*! + @brief normalize x such that the result has the exponent E + @pre e >= x.e and the upper e - x.e bits of x.f must be zero. + */ + static diyfp normalize_to(const diyfp& x, const int target_exponent) noexcept + { + const int delta = x.e - target_exponent; + + JSON_ASSERT(delta >= 0); + JSON_ASSERT(((x.f << delta) >> delta) == x.f); + + return {x.f << delta, target_exponent}; + } +}; + +struct boundaries +{ + diyfp w; + diyfp minus; + diyfp plus; +}; + +/*! +Compute the (normalized) diyfp representing the input number 'value' and its +boundaries. +@pre value must be finite and positive +*/ +template +boundaries compute_boundaries(FloatType value) +{ + JSON_ASSERT(std::isfinite(value)); + JSON_ASSERT(value > 0); + + // Convert the IEEE representation into a diyfp. + // + // If v is denormal: + // value = 0.F * 2^(1 - bias) = ( F) * 2^(1 - bias - (p-1)) + // If v is normalized: + // value = 1.F * 2^(E - bias) = (2^(p-1) + F) * 2^(E - bias - (p-1)) + + static_assert(std::numeric_limits::is_iec559, + "internal error: dtoa_short requires an IEEE-754 floating-point implementation"); + + constexpr int kPrecision = std::numeric_limits::digits; // = p (includes the hidden bit) + constexpr int kBias = std::numeric_limits::max_exponent - 1 + (kPrecision - 1); + constexpr int kMinExp = 1 - kBias; + constexpr std::uint64_t kHiddenBit = std::uint64_t{1} << (kPrecision - 1); // = 2^(p-1) + + using bits_type = typename std::conditional::type; + + const auto bits = static_cast(reinterpret_bits(value)); + const std::uint64_t E = bits >> (kPrecision - 1); + const std::uint64_t F = bits & (kHiddenBit - 1); + + const bool is_denormal = E == 0; + const diyfp v = is_denormal + ? diyfp(F, kMinExp) + : diyfp(F + kHiddenBit, static_cast(E) - kBias); + + // Compute the boundaries m- and m+ of the floating-point value + // v = f * 2^e. + // + // Determine v- and v+, the floating-point predecessor and successor if v, + // respectively. + // + // v- = v - 2^e if f != 2^(p-1) or e == e_min (A) + // = v - 2^(e-1) if f == 2^(p-1) and e > e_min (B) + // + // v+ = v + 2^e + // + // Let m- = (v- + v) / 2 and m+ = (v + v+) / 2. All real numbers _strictly_ + // between m- and m+ round to v, regardless of how the input rounding + // algorithm breaks ties. + // + // ---+-------------+-------------+-------------+-------------+--- (A) + // v- m- v m+ v+ + // + // -----------------+------+------+-------------+-------------+--- (B) + // v- m- v m+ v+ + + const bool lower_boundary_is_closer = F == 0 && E > 1; + const diyfp m_plus = diyfp(2 * v.f + 1, v.e - 1); + const diyfp m_minus = lower_boundary_is_closer + ? diyfp(4 * v.f - 1, v.e - 2) // (B) + : diyfp(2 * v.f - 1, v.e - 1); // (A) + + // Determine the normalized w+ = m+. + const diyfp w_plus = diyfp::normalize(m_plus); + + // Determine w- = m- such that e_(w-) = e_(w+). + const diyfp w_minus = diyfp::normalize_to(m_minus, w_plus.e); + + return {diyfp::normalize(v), w_minus, w_plus}; +} + +// Given normalized diyfp w, Grisu needs to find a (normalized) cached +// power-of-ten c, such that the exponent of the product c * w = f * 2^e lies +// within a certain range [alpha, gamma] (Definition 3.2 from [1]) +// +// alpha <= e = e_c + e_w + q <= gamma +// +// or +// +// f_c * f_w * 2^alpha <= f_c 2^(e_c) * f_w 2^(e_w) * 2^q +// <= f_c * f_w * 2^gamma +// +// Since c and w are normalized, i.e. 2^(q-1) <= f < 2^q, this implies +// +// 2^(q-1) * 2^(q-1) * 2^alpha <= c * w * 2^q < 2^q * 2^q * 2^gamma +// +// or +// +// 2^(q - 2 + alpha) <= c * w < 2^(q + gamma) +// +// The choice of (alpha,gamma) determines the size of the table and the form of +// the digit generation procedure. Using (alpha,gamma)=(-60,-32) works out well +// in practice: +// +// The idea is to cut the number c * w = f * 2^e into two parts, which can be +// processed independently: An integral part p1, and a fractional part p2: +// +// f * 2^e = ( (f div 2^-e) * 2^-e + (f mod 2^-e) ) * 2^e +// = (f div 2^-e) + (f mod 2^-e) * 2^e +// = p1 + p2 * 2^e +// +// The conversion of p1 into decimal form requires a series of divisions and +// modulos by (a power of) 10. These operations are faster for 32-bit than for +// 64-bit integers, so p1 should ideally fit into a 32-bit integer. This can be +// achieved by choosing +// +// -e >= 32 or e <= -32 := gamma +// +// In order to convert the fractional part +// +// p2 * 2^e = p2 / 2^-e = d[-1] / 10^1 + d[-2] / 10^2 + ... +// +// into decimal form, the fraction is repeatedly multiplied by 10 and the digits +// d[-i] are extracted in order: +// +// (10 * p2) div 2^-e = d[-1] +// (10 * p2) mod 2^-e = d[-2] / 10^1 + ... +// +// The multiplication by 10 must not overflow. It is sufficient to choose +// +// 10 * p2 < 16 * p2 = 2^4 * p2 <= 2^64. +// +// Since p2 = f mod 2^-e < 2^-e, +// +// -e <= 60 or e >= -60 := alpha + +constexpr int kAlpha = -60; +constexpr int kGamma = -32; + +struct cached_power // c = f * 2^e ~= 10^k +{ + std::uint64_t f; + int e; + int k; +}; + +/*! +For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached +power-of-ten c = f_c * 2^e_c, such that the exponent of the product w * c +satisfies (Definition 3.2 from [1]) + alpha <= e_c + e + q <= gamma. +*/ +inline cached_power get_cached_power_for_binary_exponent(int e) +{ + // Now + // + // alpha <= e_c + e + q <= gamma (1) + // ==> f_c * 2^alpha <= c * 2^e * 2^q + // + // and since the c's are normalized, 2^(q-1) <= f_c, + // + // ==> 2^(q - 1 + alpha) <= c * 2^(e + q) + // ==> 2^(alpha - e - 1) <= c + // + // If c were an exact power of ten, i.e. c = 10^k, one may determine k as + // + // k = ceil( log_10( 2^(alpha - e - 1) ) ) + // = ceil( (alpha - e - 1) * log_10(2) ) + // + // From the paper: + // "In theory the result of the procedure could be wrong since c is rounded, + // and the computation itself is approximated [...]. In practice, however, + // this simple function is sufficient." + // + // For IEEE double precision floating-point numbers converted into + // normalized diyfp's w = f * 2^e, with q = 64, + // + // e >= -1022 (min IEEE exponent) + // -52 (p - 1) + // -52 (p - 1, possibly normalize denormal IEEE numbers) + // -11 (normalize the diyfp) + // = -1137 + // + // and + // + // e <= +1023 (max IEEE exponent) + // -52 (p - 1) + // -11 (normalize the diyfp) + // = 960 + // + // This binary exponent range [-1137,960] results in a decimal exponent + // range [-307,324]. One does not need to store a cached power for each + // k in this range. For each such k it suffices to find a cached power + // such that the exponent of the product lies in [alpha,gamma]. + // This implies that the difference of the decimal exponents of adjacent + // table entries must be less than or equal to + // + // floor( (gamma - alpha) * log_10(2) ) = 8. + // + // (A smaller distance gamma-alpha would require a larger table.) + + // NB: + // Actually this function returns c, such that -60 <= e_c + e + 64 <= -34. + + constexpr int kCachedPowersMinDecExp = -300; + constexpr int kCachedPowersDecStep = 8; + + static constexpr std::array kCachedPowers = + { + { + { 0xAB70FE17C79AC6CA, -1060, -300 }, + { 0xFF77B1FCBEBCDC4F, -1034, -292 }, + { 0xBE5691EF416BD60C, -1007, -284 }, + { 0x8DD01FAD907FFC3C, -980, -276 }, + { 0xD3515C2831559A83, -954, -268 }, + { 0x9D71AC8FADA6C9B5, -927, -260 }, + { 0xEA9C227723EE8BCB, -901, -252 }, + { 0xAECC49914078536D, -874, -244 }, + { 0x823C12795DB6CE57, -847, -236 }, + { 0xC21094364DFB5637, -821, -228 }, + { 0x9096EA6F3848984F, -794, -220 }, + { 0xD77485CB25823AC7, -768, -212 }, + { 0xA086CFCD97BF97F4, -741, -204 }, + { 0xEF340A98172AACE5, -715, -196 }, + { 0xB23867FB2A35B28E, -688, -188 }, + { 0x84C8D4DFD2C63F3B, -661, -180 }, + { 0xC5DD44271AD3CDBA, -635, -172 }, + { 0x936B9FCEBB25C996, -608, -164 }, + { 0xDBAC6C247D62A584, -582, -156 }, + { 0xA3AB66580D5FDAF6, -555, -148 }, + { 0xF3E2F893DEC3F126, -529, -140 }, + { 0xB5B5ADA8AAFF80B8, -502, -132 }, + { 0x87625F056C7C4A8B, -475, -124 }, + { 0xC9BCFF6034C13053, -449, -116 }, + { 0x964E858C91BA2655, -422, -108 }, + { 0xDFF9772470297EBD, -396, -100 }, + { 0xA6DFBD9FB8E5B88F, -369, -92 }, + { 0xF8A95FCF88747D94, -343, -84 }, + { 0xB94470938FA89BCF, -316, -76 }, + { 0x8A08F0F8BF0F156B, -289, -68 }, + { 0xCDB02555653131B6, -263, -60 }, + { 0x993FE2C6D07B7FAC, -236, -52 }, + { 0xE45C10C42A2B3B06, -210, -44 }, + { 0xAA242499697392D3, -183, -36 }, + { 0xFD87B5F28300CA0E, -157, -28 }, + { 0xBCE5086492111AEB, -130, -20 }, + { 0x8CBCCC096F5088CC, -103, -12 }, + { 0xD1B71758E219652C, -77, -4 }, + { 0x9C40000000000000, -50, 4 }, + { 0xE8D4A51000000000, -24, 12 }, + { 0xAD78EBC5AC620000, 3, 20 }, + { 0x813F3978F8940984, 30, 28 }, + { 0xC097CE7BC90715B3, 56, 36 }, + { 0x8F7E32CE7BEA5C70, 83, 44 }, + { 0xD5D238A4ABE98068, 109, 52 }, + { 0x9F4F2726179A2245, 136, 60 }, + { 0xED63A231D4C4FB27, 162, 68 }, + { 0xB0DE65388CC8ADA8, 189, 76 }, + { 0x83C7088E1AAB65DB, 216, 84 }, + { 0xC45D1DF942711D9A, 242, 92 }, + { 0x924D692CA61BE758, 269, 100 }, + { 0xDA01EE641A708DEA, 295, 108 }, + { 0xA26DA3999AEF774A, 322, 116 }, + { 0xF209787BB47D6B85, 348, 124 }, + { 0xB454E4A179DD1877, 375, 132 }, + { 0x865B86925B9BC5C2, 402, 140 }, + { 0xC83553C5C8965D3D, 428, 148 }, + { 0x952AB45CFA97A0B3, 455, 156 }, + { 0xDE469FBD99A05FE3, 481, 164 }, + { 0xA59BC234DB398C25, 508, 172 }, + { 0xF6C69A72A3989F5C, 534, 180 }, + { 0xB7DCBF5354E9BECE, 561, 188 }, + { 0x88FCF317F22241E2, 588, 196 }, + { 0xCC20CE9BD35C78A5, 614, 204 }, + { 0x98165AF37B2153DF, 641, 212 }, + { 0xE2A0B5DC971F303A, 667, 220 }, + { 0xA8D9D1535CE3B396, 694, 228 }, + { 0xFB9B7CD9A4A7443C, 720, 236 }, + { 0xBB764C4CA7A44410, 747, 244 }, + { 0x8BAB8EEFB6409C1A, 774, 252 }, + { 0xD01FEF10A657842C, 800, 260 }, + { 0x9B10A4E5E9913129, 827, 268 }, + { 0xE7109BFBA19C0C9D, 853, 276 }, + { 0xAC2820D9623BF429, 880, 284 }, + { 0x80444B5E7AA7CF85, 907, 292 }, + { 0xBF21E44003ACDD2D, 933, 300 }, + { 0x8E679C2F5E44FF8F, 960, 308 }, + { 0xD433179D9C8CB841, 986, 316 }, + { 0x9E19DB92B4E31BA9, 1013, 324 }, + } + }; + + // This computation gives exactly the same results for k as + // k = ceil((kAlpha - e - 1) * 0.30102999566398114) + // for |e| <= 1500, but doesn't require floating-point operations. + // NB: log_10(2) ~= 78913 / 2^18 + JSON_ASSERT(e >= -1500); + JSON_ASSERT(e <= 1500); + const int f = kAlpha - e - 1; + const int k = (f * 78913) / (1 << 18) + static_cast(f > 0); + + const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / kCachedPowersDecStep; + JSON_ASSERT(index >= 0); + JSON_ASSERT(static_cast(index) < kCachedPowers.size()); + + const cached_power cached = kCachedPowers[static_cast(index)]; + JSON_ASSERT(kAlpha <= cached.e + e + 64); + JSON_ASSERT(kGamma >= cached.e + e + 64); + + return cached; +} + +/*! +For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k. +For n == 0, returns 1 and sets pow10 := 1. +*/ +inline int find_largest_pow10(const std::uint32_t n, std::uint32_t& pow10) +{ + // LCOV_EXCL_START + if (n >= 1000000000) + { + pow10 = 1000000000; + return 10; + } + // LCOV_EXCL_STOP + if (n >= 100000000) + { + pow10 = 100000000; + return 9; + } + if (n >= 10000000) + { + pow10 = 10000000; + return 8; + } + if (n >= 1000000) + { + pow10 = 1000000; + return 7; + } + if (n >= 100000) + { + pow10 = 100000; + return 6; + } + if (n >= 10000) + { + pow10 = 10000; + return 5; + } + if (n >= 1000) + { + pow10 = 1000; + return 4; + } + if (n >= 100) + { + pow10 = 100; + return 3; + } + if (n >= 10) + { + pow10 = 10; + return 2; + } + + pow10 = 1; + return 1; +} + +inline void grisu2_round(char* buf, int len, std::uint64_t dist, std::uint64_t delta, + std::uint64_t rest, std::uint64_t ten_k) +{ + JSON_ASSERT(len >= 1); + JSON_ASSERT(dist <= delta); + JSON_ASSERT(rest <= delta); + JSON_ASSERT(ten_k > 0); + + // <--------------------------- delta ----> + // <---- dist ---------> + // --------------[------------------+-------------------]-------------- + // M- w M+ + // + // ten_k + // <------> + // <---- rest ----> + // --------------[------------------+----+--------------]-------------- + // w V + // = buf * 10^k + // + // ten_k represents a unit-in-the-last-place in the decimal representation + // stored in buf. + // Decrement buf by ten_k while this takes buf closer to w. + + // The tests are written in this order to avoid overflow in unsigned + // integer arithmetic. + + while (rest < dist + && delta - rest >= ten_k + && (rest + ten_k < dist || dist - rest > rest + ten_k - dist)) + { + JSON_ASSERT(buf[len - 1] != '0'); + buf[len - 1]--; + rest += ten_k; + } +} + +/*! +Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. +M- and M+ must be normalized and share the same exponent -60 <= e <= -32. +*/ +inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent, + diyfp M_minus, diyfp w, diyfp M_plus) +{ + static_assert(kAlpha >= -60, "internal error"); + static_assert(kGamma <= -32, "internal error"); + + // Generates the digits (and the exponent) of a decimal floating-point + // number V = buffer * 10^decimal_exponent in the range [M-, M+]. The diyfp's + // w, M- and M+ share the same exponent e, which satisfies alpha <= e <= gamma. + // + // <--------------------------- delta ----> + // <---- dist ---------> + // --------------[------------------+-------------------]-------------- + // M- w M+ + // + // Grisu2 generates the digits of M+ from left to right and stops as soon as + // V is in [M-,M+]. + + JSON_ASSERT(M_plus.e >= kAlpha); + JSON_ASSERT(M_plus.e <= kGamma); + + std::uint64_t delta = diyfp::sub(M_plus, M_minus).f; // (significand of (M+ - M-), implicit exponent is e) + std::uint64_t dist = diyfp::sub(M_plus, w ).f; // (significand of (M+ - w ), implicit exponent is e) + + // Split M+ = f * 2^e into two parts p1 and p2 (note: e < 0): + // + // M+ = f * 2^e + // = ((f div 2^-e) * 2^-e + (f mod 2^-e)) * 2^e + // = ((p1 ) * 2^-e + (p2 )) * 2^e + // = p1 + p2 * 2^e + + const diyfp one(std::uint64_t{1} << -M_plus.e, M_plus.e); + + auto p1 = static_cast(M_plus.f >> -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.) + std::uint64_t p2 = M_plus.f & (one.f - 1); // p2 = f mod 2^-e + + // 1) + // + // Generate the digits of the integral part p1 = d[n-1]...d[1]d[0] + + JSON_ASSERT(p1 > 0); + + std::uint32_t pow10{}; + const int k = find_largest_pow10(p1, pow10); + + // 10^(k-1) <= p1 < 10^k, pow10 = 10^(k-1) + // + // p1 = (p1 div 10^(k-1)) * 10^(k-1) + (p1 mod 10^(k-1)) + // = (d[k-1] ) * 10^(k-1) + (p1 mod 10^(k-1)) + // + // M+ = p1 + p2 * 2^e + // = d[k-1] * 10^(k-1) + (p1 mod 10^(k-1)) + p2 * 2^e + // = d[k-1] * 10^(k-1) + ((p1 mod 10^(k-1)) * 2^-e + p2) * 2^e + // = d[k-1] * 10^(k-1) + ( rest) * 2^e + // + // Now generate the digits d[n] of p1 from left to right (n = k-1,...,0) + // + // p1 = d[k-1]...d[n] * 10^n + d[n-1]...d[0] + // + // but stop as soon as + // + // rest * 2^e = (d[n-1]...d[0] * 2^-e + p2) * 2^e <= delta * 2^e + + int n = k; + while (n > 0) + { + // Invariants: + // M+ = buffer * 10^n + (p1 + p2 * 2^e) (buffer = 0 for n = k) + // pow10 = 10^(n-1) <= p1 < 10^n + // + const std::uint32_t d = p1 / pow10; // d = p1 div 10^(n-1) + const std::uint32_t r = p1 % pow10; // r = p1 mod 10^(n-1) + // + // M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e + // = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e) + // + JSON_ASSERT(d <= 9); + buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d + // + // M+ = buffer * 10^(n-1) + (r + p2 * 2^e) + // + p1 = r; + n--; + // + // M+ = buffer * 10^n + (p1 + p2 * 2^e) + // pow10 = 10^n + // + + // Now check if enough digits have been generated. + // Compute + // + // p1 + p2 * 2^e = (p1 * 2^-e + p2) * 2^e = rest * 2^e + // + // Note: + // Since rest and delta share the same exponent e, it suffices to + // compare the significands. + const std::uint64_t rest = (std::uint64_t{p1} << -one.e) + p2; + if (rest <= delta) + { + // V = buffer * 10^n, with M- <= V <= M+. + + decimal_exponent += n; + + // We may now just stop. But instead look if the buffer could be + // decremented to bring V closer to w. + // + // pow10 = 10^n is now 1 ulp in the decimal representation V. + // The rounding procedure works with diyfp's with an implicit + // exponent of e. + // + // 10^n = (10^n * 2^-e) * 2^e = ulp * 2^e + // + const std::uint64_t ten_n = std::uint64_t{pow10} << -one.e; + grisu2_round(buffer, length, dist, delta, rest, ten_n); + + return; + } + + pow10 /= 10; + // + // pow10 = 10^(n-1) <= p1 < 10^n + // Invariants restored. + } + + // 2) + // + // The digits of the integral part have been generated: + // + // M+ = d[k-1]...d[1]d[0] + p2 * 2^e + // = buffer + p2 * 2^e + // + // Now generate the digits of the fractional part p2 * 2^e. + // + // Note: + // No decimal point is generated: the exponent is adjusted instead. + // + // p2 actually represents the fraction + // + // p2 * 2^e + // = p2 / 2^-e + // = d[-1] / 10^1 + d[-2] / 10^2 + ... + // + // Now generate the digits d[-m] of p1 from left to right (m = 1,2,...) + // + // p2 * 2^e = d[-1]d[-2]...d[-m] * 10^-m + // + 10^-m * (d[-m-1] / 10^1 + d[-m-2] / 10^2 + ...) + // + // using + // + // 10^m * p2 = ((10^m * p2) div 2^-e) * 2^-e + ((10^m * p2) mod 2^-e) + // = ( d) * 2^-e + ( r) + // + // or + // 10^m * p2 * 2^e = d + r * 2^e + // + // i.e. + // + // M+ = buffer + p2 * 2^e + // = buffer + 10^-m * (d + r * 2^e) + // = (buffer * 10^m + d) * 10^-m + 10^-m * r * 2^e + // + // and stop as soon as 10^-m * r * 2^e <= delta * 2^e + + JSON_ASSERT(p2 > delta); + + int m = 0; + for (;;) + { + // Invariant: + // M+ = buffer * 10^-m + 10^-m * (d[-m-1] / 10 + d[-m-2] / 10^2 + ...) * 2^e + // = buffer * 10^-m + 10^-m * (p2 ) * 2^e + // = buffer * 10^-m + 10^-m * (1/10 * (10 * p2) ) * 2^e + // = buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + (10*p2 mod 2^-e)) * 2^e + // + JSON_ASSERT(p2 <= (std::numeric_limits::max)() / 10); + p2 *= 10; + const std::uint64_t d = p2 >> -one.e; // d = (10 * p2) div 2^-e + const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e + // + // M+ = buffer * 10^-m + 10^-m * (1/10 * (d * 2^-e + r) * 2^e + // = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e)) + // = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e + // + JSON_ASSERT(d <= 9); + buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d + // + // M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e + // + p2 = r; + m++; + // + // M+ = buffer * 10^-m + 10^-m * p2 * 2^e + // Invariant restored. + + // Check if enough digits have been generated. + // + // 10^-m * p2 * 2^e <= delta * 2^e + // p2 * 2^e <= 10^m * delta * 2^e + // p2 <= 10^m * delta + delta *= 10; + dist *= 10; + if (p2 <= delta) + { + break; + } + } + + // V = buffer * 10^-m, with M- <= V <= M+. + + decimal_exponent -= m; + + // 1 ulp in the decimal representation is now 10^-m. + // Since delta and dist are now scaled by 10^m, we need to do the + // same with ulp in order to keep the units in sync. + // + // 10^m * 10^-m = 1 = 2^-e * 2^e = ten_m * 2^e + // + const std::uint64_t ten_m = one.f; + grisu2_round(buffer, length, dist, delta, p2, ten_m); + + // By construction this algorithm generates the shortest possible decimal + // number (Loitsch, Theorem 6.2) which rounds back to w. + // For an input number of precision p, at least + // + // N = 1 + ceil(p * log_10(2)) + // + // decimal digits are sufficient to identify all binary floating-point + // numbers (Matula, "In-and-Out conversions"). + // This implies that the algorithm does not produce more than N decimal + // digits. + // + // N = 17 for p = 53 (IEEE double precision) + // N = 9 for p = 24 (IEEE single precision) +} + +/*! +v = buf * 10^decimal_exponent +len is the length of the buffer (number of decimal digits) +The buffer must be large enough, i.e. >= max_digits10. +*/ +JSON_HEDLEY_NON_NULL(1) +inline void grisu2(char* buf, int& len, int& decimal_exponent, + diyfp m_minus, diyfp v, diyfp m_plus) +{ + JSON_ASSERT(m_plus.e == m_minus.e); + JSON_ASSERT(m_plus.e == v.e); + + // --------(-----------------------+-----------------------)-------- (A) + // m- v m+ + // + // --------------------(-----------+-----------------------)-------- (B) + // m- v m+ + // + // First scale v (and m- and m+) such that the exponent is in the range + // [alpha, gamma]. + + const cached_power cached = get_cached_power_for_binary_exponent(m_plus.e); + + const diyfp c_minus_k(cached.f, cached.e); // = c ~= 10^-k + + // The exponent of the products is = v.e + c_minus_k.e + q and is in the range [alpha,gamma] + const diyfp w = diyfp::mul(v, c_minus_k); + const diyfp w_minus = diyfp::mul(m_minus, c_minus_k); + const diyfp w_plus = diyfp::mul(m_plus, c_minus_k); + + // ----(---+---)---------------(---+---)---------------(---+---)---- + // w- w w+ + // = c*m- = c*v = c*m+ + // + // diyfp::mul rounds its result and c_minus_k is approximated too. w, w- and + // w+ are now off by a small amount. + // In fact: + // + // w - v * 10^k < 1 ulp + // + // To account for this inaccuracy, add resp. subtract 1 ulp. + // + // --------+---[---------------(---+---)---------------]---+-------- + // w- M- w M+ w+ + // + // Now any number in [M-, M+] (bounds included) will round to w when input, + // regardless of how the input rounding algorithm breaks ties. + // + // And digit_gen generates the shortest possible such number in [M-, M+]. + // Note that this does not mean that Grisu2 always generates the shortest + // possible number in the interval (m-, m+). + const diyfp M_minus(w_minus.f + 1, w_minus.e); + const diyfp M_plus (w_plus.f - 1, w_plus.e ); + + decimal_exponent = -cached.k; // = -(-k) = k + + grisu2_digit_gen(buf, len, decimal_exponent, M_minus, w, M_plus); +} + +/*! +v = buf * 10^decimal_exponent +len is the length of the buffer (number of decimal digits) +The buffer must be large enough, i.e. >= max_digits10. +*/ +template +JSON_HEDLEY_NON_NULL(1) +void grisu2(char* buf, int& len, int& decimal_exponent, FloatType value) +{ + static_assert(diyfp::kPrecision >= std::numeric_limits::digits + 3, + "internal error: not enough precision"); + + JSON_ASSERT(std::isfinite(value)); + JSON_ASSERT(value > 0); + + // If the neighbors (and boundaries) of 'value' are always computed for double-precision + // numbers, all float's can be recovered using strtod (and strtof). However, the resulting + // decimal representations are not exactly "short". + // + // The documentation for 'std::to_chars' (https://en.cppreference.com/w/cpp/utility/to_chars) + // says "value is converted to a string as if by std::sprintf in the default ("C") locale" + // and since sprintf promotes floats to doubles, I think this is exactly what 'std::to_chars' + // does. + // On the other hand, the documentation for 'std::to_chars' requires that "parsing the + // representation using the corresponding std::from_chars function recovers value exactly". That + // indicates that single precision floating-point numbers should be recovered using + // 'std::strtof'. + // + // NB: If the neighbors are computed for single-precision numbers, there is a single float + // (7.0385307e-26f) which can't be recovered using strtod. The resulting double precision + // value is off by 1 ulp. +#if 0 + const boundaries w = compute_boundaries(static_cast(value)); +#else + const boundaries w = compute_boundaries(value); +#endif + + grisu2(buf, len, decimal_exponent, w.minus, w.w, w.plus); +} + +/*! +@brief appends a decimal representation of e to buf +@return a pointer to the element following the exponent. +@pre -1000 < e < 1000 +*/ +JSON_HEDLEY_NON_NULL(1) +JSON_HEDLEY_RETURNS_NON_NULL +inline char* append_exponent(char* buf, int e) +{ + JSON_ASSERT(e > -1000); + JSON_ASSERT(e < 1000); + + if (e < 0) + { + e = -e; + *buf++ = '-'; + } + else + { + *buf++ = '+'; + } + + auto k = static_cast(e); + if (k < 10) + { + // Always print at least two digits in the exponent. + // This is for compatibility with printf("%g"). + *buf++ = '0'; + *buf++ = static_cast('0' + k); + } + else if (k < 100) + { + *buf++ = static_cast('0' + k / 10); + k %= 10; + *buf++ = static_cast('0' + k); + } + else + { + *buf++ = static_cast('0' + k / 100); + k %= 100; + *buf++ = static_cast('0' + k / 10); + k %= 10; + *buf++ = static_cast('0' + k); + } + + return buf; +} + +/*! +@brief prettify v = buf * 10^decimal_exponent +If v is in the range [10^min_exp, 10^max_exp) it will be printed in fixed-point +notation. Otherwise it will be printed in exponential notation. +@pre min_exp < 0 +@pre max_exp > 0 +*/ +JSON_HEDLEY_NON_NULL(1) +JSON_HEDLEY_RETURNS_NON_NULL +inline char* format_buffer(char* buf, int len, int decimal_exponent, + int min_exp, int max_exp) +{ + JSON_ASSERT(min_exp < 0); + JSON_ASSERT(max_exp > 0); + + const int k = len; + const int n = len + decimal_exponent; + + // v = buf * 10^(n-k) + // k is the length of the buffer (number of decimal digits) + // n is the position of the decimal point relative to the start of the buffer. + + if (k <= n && n <= max_exp) + { + // digits[000] + // len <= max_exp + 2 + + std::memset(buf + k, '0', static_cast(n) - static_cast(k)); + // Make it look like a floating-point number (#362, #378) + buf[n + 0] = '.'; + buf[n + 1] = '0'; + return buf + (static_cast(n) + 2); + } + + if (0 < n && n <= max_exp) + { + // dig.its + // len <= max_digits10 + 1 + + JSON_ASSERT(k > n); + + std::memmove(buf + (static_cast(n) + 1), buf + n, static_cast(k) - static_cast(n)); + buf[n] = '.'; + return buf + (static_cast(k) + 1U); + } + + if (min_exp < n && n <= 0) + { + // 0.[000]digits + // len <= 2 + (-min_exp - 1) + max_digits10 + + std::memmove(buf + (2 + static_cast(-n)), buf, static_cast(k)); + buf[0] = '0'; + buf[1] = '.'; + std::memset(buf + 2, '0', static_cast(-n)); + return buf + (2U + static_cast(-n) + static_cast(k)); + } + + if (k == 1) + { + // dE+123 + // len <= 1 + 5 + + buf += 1; + } + else + { + // d.igitsE+123 + // len <= max_digits10 + 1 + 5 + + std::memmove(buf + 2, buf + 1, static_cast(k) - 1); + buf[1] = '.'; + buf += 1 + static_cast(k); + } + + *buf++ = 'e'; + return append_exponent(buf, n - 1); +} + +} // namespace dtoa_impl + +/*! +@brief generates a decimal representation of the floating-point number value in [first, last). +The format of the resulting decimal representation is similar to printf's %g +format. Returns an iterator pointing past-the-end of the decimal representation. +@note The input number must be finite, i.e. NaN's and Inf's are not supported. +@note The buffer must be large enough. +@note The result is NOT null-terminated. +*/ +template +JSON_HEDLEY_NON_NULL(1, 2) +JSON_HEDLEY_RETURNS_NON_NULL +char* to_chars(char* first, const char* last, FloatType value) +{ + static_cast(last); // maybe unused - fix warning + JSON_ASSERT(std::isfinite(value)); + + // Use signbit(value) instead of (value < 0) since signbit works for -0. + if (std::signbit(value)) + { + value = -value; + *first++ = '-'; + } + +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wfloat-equal" +#endif + if (value == 0) // +-0 + { + *first++ = '0'; + // Make it look like a floating-point number (#362, #378) + *first++ = '.'; + *first++ = '0'; + return first; + } +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + + JSON_ASSERT(last - first >= std::numeric_limits::max_digits10); + + // Compute v = buffer * 10^decimal_exponent. + // The decimal digits are stored in the buffer, which needs to be interpreted + // as an unsigned decimal integer. + // len is the length of the buffer, i.e. the number of decimal digits. + int len = 0; + int decimal_exponent = 0; + dtoa_impl::grisu2(first, len, decimal_exponent, value); + + JSON_ASSERT(len <= std::numeric_limits::max_digits10); + + // Format the buffer like printf("%.*g", prec, value) + constexpr int kMinExp = -4; + // Use digits10 here to increase compatibility with version 2. + constexpr int kMaxExp = std::numeric_limits::digits10; + + JSON_ASSERT(last - first >= kMaxExp + 2); + JSON_ASSERT(last - first >= 2 + (-kMinExp - 1) + std::numeric_limits::max_digits10); + JSON_ASSERT(last - first >= std::numeric_limits::max_digits10 + 6); + + return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, kMaxExp); +} + +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + +// #include + +// #include + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +/////////////////// +// serialization // +/////////////////// + +/// how to treat decoding errors +enum class error_handler_t +{ + strict, ///< throw a type_error exception in case of invalid UTF-8 + replace, ///< replace invalid UTF-8 sequences with U+FFFD + ignore ///< ignore invalid UTF-8 sequences +}; + +template +class serializer +{ + using string_t = typename BasicJsonType::string_t; + using number_float_t = typename BasicJsonType::number_float_t; + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using binary_char_t = typename BasicJsonType::binary_t::value_type; + static constexpr std::uint8_t UTF8_ACCEPT = 0; + static constexpr std::uint8_t UTF8_REJECT = 1; + + public: + /*! + @param[in] s output stream to serialize to + @param[in] ichar indentation character to use + @param[in] error_handler_ how to react on decoding errors + */ + serializer(output_adapter_t s, const char ichar, + error_handler_t error_handler_ = error_handler_t::strict) + : o(std::move(s)) + , loc(std::localeconv()) + , thousands_sep(loc->thousands_sep == nullptr ? '\0' : std::char_traits::to_char_type(* (loc->thousands_sep))) + , decimal_point(loc->decimal_point == nullptr ? '\0' : std::char_traits::to_char_type(* (loc->decimal_point))) + , indent_char(ichar) + , indent_string(512, indent_char) + , error_handler(error_handler_) + {} + + // delete because of pointer members + serializer(const serializer&) = delete; + serializer& operator=(const serializer&) = delete; + serializer(serializer&&) = delete; + serializer& operator=(serializer&&) = delete; + ~serializer() = default; + + /*! + @brief internal implementation of the serialization function + This function is called by the public member function dump and organizes + the serialization internally. The indentation level is propagated as + additional parameter. In case of arrays and objects, the function is + called recursively. + - strings and object keys are escaped using `escape_string()` + - integer numbers are converted implicitly via `operator<<` + - floating-point numbers are converted to a string using `"%g"` format + - binary values are serialized as objects containing the subtype and the + byte array + @param[in] val value to serialize + @param[in] pretty_print whether the output shall be pretty-printed + @param[in] ensure_ascii If @a ensure_ascii is true, all non-ASCII characters + in the output are escaped with `\uXXXX` sequences, and the result consists + of ASCII characters only. + @param[in] indent_step the indent level + @param[in] current_indent the current indent level (only used internally) + */ + void dump(const BasicJsonType& val, + const bool pretty_print, + const bool ensure_ascii, + const unsigned int indent_step, + const unsigned int current_indent = 0) + { + switch (val.m_type) + { + case value_t::object: + { + if (val.m_value.object->empty()) + { + o->write_characters("{}", 2); + return; + } + + if (pretty_print) + { + o->write_characters("{\n", 2); + + // variable to hold indentation for recursive calls + const auto new_indent = current_indent + indent_step; + if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) + { + indent_string.resize(indent_string.size() * 2, ' '); + } + + // first n-1 elements + auto i = val.m_value.object->cbegin(); + for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i) + { + o->write_characters(indent_string.c_str(), new_indent); + o->write_character('\"'); + dump_escaped(i->first, ensure_ascii); + o->write_characters("\": ", 3); + dump(i->second, true, ensure_ascii, indent_step, new_indent); + o->write_characters(",\n", 2); + } + + // last element + JSON_ASSERT(i != val.m_value.object->cend()); + JSON_ASSERT(std::next(i) == val.m_value.object->cend()); + o->write_characters(indent_string.c_str(), new_indent); + o->write_character('\"'); + dump_escaped(i->first, ensure_ascii); + o->write_characters("\": ", 3); + dump(i->second, true, ensure_ascii, indent_step, new_indent); + + o->write_character('\n'); + o->write_characters(indent_string.c_str(), current_indent); + o->write_character('}'); + } + else + { + o->write_character('{'); + + // first n-1 elements + auto i = val.m_value.object->cbegin(); + for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i) + { + o->write_character('\"'); + dump_escaped(i->first, ensure_ascii); + o->write_characters("\":", 2); + dump(i->second, false, ensure_ascii, indent_step, current_indent); + o->write_character(','); + } + + // last element + JSON_ASSERT(i != val.m_value.object->cend()); + JSON_ASSERT(std::next(i) == val.m_value.object->cend()); + o->write_character('\"'); + dump_escaped(i->first, ensure_ascii); + o->write_characters("\":", 2); + dump(i->second, false, ensure_ascii, indent_step, current_indent); + + o->write_character('}'); + } + + return; + } + + case value_t::array: + { + if (val.m_value.array->empty()) + { + o->write_characters("[]", 2); + return; + } + + if (pretty_print) + { + o->write_characters("[\n", 2); + + // variable to hold indentation for recursive calls + const auto new_indent = current_indent + indent_step; + if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) + { + indent_string.resize(indent_string.size() * 2, ' '); + } + + // first n-1 elements + for (auto i = val.m_value.array->cbegin(); + i != val.m_value.array->cend() - 1; ++i) + { + o->write_characters(indent_string.c_str(), new_indent); + dump(*i, true, ensure_ascii, indent_step, new_indent); + o->write_characters(",\n", 2); + } + + // last element + JSON_ASSERT(!val.m_value.array->empty()); + o->write_characters(indent_string.c_str(), new_indent); + dump(val.m_value.array->back(), true, ensure_ascii, indent_step, new_indent); + + o->write_character('\n'); + o->write_characters(indent_string.c_str(), current_indent); + o->write_character(']'); + } + else + { + o->write_character('['); + + // first n-1 elements + for (auto i = val.m_value.array->cbegin(); + i != val.m_value.array->cend() - 1; ++i) + { + dump(*i, false, ensure_ascii, indent_step, current_indent); + o->write_character(','); + } + + // last element + JSON_ASSERT(!val.m_value.array->empty()); + dump(val.m_value.array->back(), false, ensure_ascii, indent_step, current_indent); + + o->write_character(']'); + } + + return; + } + + case value_t::string: + { + o->write_character('\"'); + dump_escaped(*val.m_value.string, ensure_ascii); + o->write_character('\"'); + return; + } + + case value_t::binary: + { + if (pretty_print) + { + o->write_characters("{\n", 2); + + // variable to hold indentation for recursive calls + const auto new_indent = current_indent + indent_step; + if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) + { + indent_string.resize(indent_string.size() * 2, ' '); + } + + o->write_characters(indent_string.c_str(), new_indent); + + o->write_characters("\"bytes\": [", 10); + + if (!val.m_value.binary->empty()) + { + for (auto i = val.m_value.binary->cbegin(); + i != val.m_value.binary->cend() - 1; ++i) + { + dump_integer(*i); + o->write_characters(", ", 2); + } + dump_integer(val.m_value.binary->back()); + } + + o->write_characters("],\n", 3); + o->write_characters(indent_string.c_str(), new_indent); + + o->write_characters("\"subtype\": ", 11); + if (val.m_value.binary->has_subtype()) + { + dump_integer(val.m_value.binary->subtype()); + } + else + { + o->write_characters("null", 4); + } + o->write_character('\n'); + o->write_characters(indent_string.c_str(), current_indent); + o->write_character('}'); + } + else + { + o->write_characters("{\"bytes\":[", 10); + + if (!val.m_value.binary->empty()) + { + for (auto i = val.m_value.binary->cbegin(); + i != val.m_value.binary->cend() - 1; ++i) + { + dump_integer(*i); + o->write_character(','); + } + dump_integer(val.m_value.binary->back()); + } + + o->write_characters("],\"subtype\":", 12); + if (val.m_value.binary->has_subtype()) + { + dump_integer(val.m_value.binary->subtype()); + o->write_character('}'); + } + else + { + o->write_characters("null}", 5); + } + } + return; + } + + case value_t::boolean: + { + if (val.m_value.boolean) + { + o->write_characters("true", 4); + } + else + { + o->write_characters("false", 5); + } + return; + } + + case value_t::number_integer: + { + dump_integer(val.m_value.number_integer); + return; + } + + case value_t::number_unsigned: + { + dump_integer(val.m_value.number_unsigned); + return; + } + + case value_t::number_float: + { + dump_float(val.m_value.number_float); + return; + } + + case value_t::discarded: + { + o->write_characters("", 11); + return; + } + + case value_t::null: + { + o->write_characters("null", 4); + return; + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + } + + JSON_PRIVATE_UNLESS_TESTED: + /*! + @brief dump escaped string + Escape a string by replacing certain special characters by a sequence of an + escape character (backslash) and another character and other control + characters by a sequence of "\u" followed by a four-digit hex + representation. The escaped string is written to output stream @a o. + @param[in] s the string to escape + @param[in] ensure_ascii whether to escape non-ASCII characters with + \uXXXX sequences + @complexity Linear in the length of string @a s. + */ + void dump_escaped(const string_t& s, const bool ensure_ascii) + { + std::uint32_t codepoint{}; + std::uint8_t state = UTF8_ACCEPT; + std::size_t bytes = 0; // number of bytes written to string_buffer + + // number of bytes written at the point of the last valid byte + std::size_t bytes_after_last_accept = 0; + std::size_t undumped_chars = 0; + + for (std::size_t i = 0; i < s.size(); ++i) + { + const auto byte = static_cast(s[i]); + + switch (decode(state, codepoint, byte)) + { + case UTF8_ACCEPT: // decode found a new code point + { + switch (codepoint) + { + case 0x08: // backspace + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'b'; + break; + } + + case 0x09: // horizontal tab + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 't'; + break; + } + + case 0x0A: // newline + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'n'; + break; + } + + case 0x0C: // formfeed + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'f'; + break; + } + + case 0x0D: // carriage return + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'r'; + break; + } + + case 0x22: // quotation mark + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = '\"'; + break; + } + + case 0x5C: // reverse solidus + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = '\\'; + break; + } + + default: + { + // escape control characters (0x00..0x1F) or, if + // ensure_ascii parameter is used, non-ASCII characters + if ((codepoint <= 0x1F) || (ensure_ascii && (codepoint >= 0x7F))) + { + if (codepoint <= 0xFFFF) + { + // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + static_cast((std::snprintf)(string_buffer.data() + bytes, 7, "\\u%04x", + static_cast(codepoint))); + bytes += 6; + } + else + { + // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + static_cast((std::snprintf)(string_buffer.data() + bytes, 13, "\\u%04x\\u%04x", + static_cast(0xD7C0u + (codepoint >> 10u)), + static_cast(0xDC00u + (codepoint & 0x3FFu)))); + bytes += 12; + } + } + else + { + // copy byte to buffer (all previous bytes + // been copied have in default case above) + string_buffer[bytes++] = s[i]; + } + break; + } + } + + // write buffer and reset index; there must be 13 bytes + // left, as this is the maximal number of bytes to be + // written ("\uxxxx\uxxxx\0") for one code point + if (string_buffer.size() - bytes < 13) + { + o->write_characters(string_buffer.data(), bytes); + bytes = 0; + } + + // remember the byte position of this accept + bytes_after_last_accept = bytes; + undumped_chars = 0; + break; + } + + case UTF8_REJECT: // decode found invalid UTF-8 byte + { + switch (error_handler) + { + case error_handler_t::strict: + { + JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + hex_bytes(byte | 0), BasicJsonType())); + } + + case error_handler_t::ignore: + case error_handler_t::replace: + { + // in case we saw this character the first time, we + // would like to read it again, because the byte + // may be OK for itself, but just not OK for the + // previous sequence + if (undumped_chars > 0) + { + --i; + } + + // reset length buffer to the last accepted index; + // thus removing/ignoring the invalid characters + bytes = bytes_after_last_accept; + + if (error_handler == error_handler_t::replace) + { + // add a replacement character + if (ensure_ascii) + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'u'; + string_buffer[bytes++] = 'f'; + string_buffer[bytes++] = 'f'; + string_buffer[bytes++] = 'f'; + string_buffer[bytes++] = 'd'; + } + else + { + string_buffer[bytes++] = detail::binary_writer::to_char_type('\xEF'); + string_buffer[bytes++] = detail::binary_writer::to_char_type('\xBF'); + string_buffer[bytes++] = detail::binary_writer::to_char_type('\xBD'); + } + + // write buffer and reset index; there must be 13 bytes + // left, as this is the maximal number of bytes to be + // written ("\uxxxx\uxxxx\0") for one code point + if (string_buffer.size() - bytes < 13) + { + o->write_characters(string_buffer.data(), bytes); + bytes = 0; + } + + bytes_after_last_accept = bytes; + } + + undumped_chars = 0; + + // continue processing the string + state = UTF8_ACCEPT; + break; + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + break; + } + + default: // decode found yet incomplete multi-byte code point + { + if (!ensure_ascii) + { + // code point will not be escaped - copy byte to buffer + string_buffer[bytes++] = s[i]; + } + ++undumped_chars; + break; + } + } + } + + // we finished processing the string + if (JSON_HEDLEY_LIKELY(state == UTF8_ACCEPT)) + { + // write buffer + if (bytes > 0) + { + o->write_characters(string_buffer.data(), bytes); + } + } + else + { + // we finish reading, but do not accept: string was incomplete + switch (error_handler) + { + case error_handler_t::strict: + { + JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + hex_bytes(static_cast(s.back() | 0)), BasicJsonType())); + } + + case error_handler_t::ignore: + { + // write all accepted bytes + o->write_characters(string_buffer.data(), bytes_after_last_accept); + break; + } + + case error_handler_t::replace: + { + // write all accepted bytes + o->write_characters(string_buffer.data(), bytes_after_last_accept); + // add a replacement character + if (ensure_ascii) + { + o->write_characters("\\ufffd", 6); + } + else + { + o->write_characters("\xEF\xBF\xBD", 3); + } + break; + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + } + } + + private: + /*! + @brief count digits + Count the number of decimal (base 10) digits for an input unsigned integer. + @param[in] x unsigned integer number to count its digits + @return number of decimal digits + */ + inline unsigned int count_digits(number_unsigned_t x) noexcept + { + unsigned int n_digits = 1; + for (;;) + { + if (x < 10) + { + return n_digits; + } + if (x < 100) + { + return n_digits + 1; + } + if (x < 1000) + { + return n_digits + 2; + } + if (x < 10000) + { + return n_digits + 3; + } + x = x / 10000u; + n_digits += 4; + } + } + + /*! + * @brief convert a byte to a uppercase hex representation + * @param[in] byte byte to represent + * @return representation ("00".."FF") + */ + static std::string hex_bytes(std::uint8_t byte) + { + std::string result = "FF"; + constexpr const char* nibble_to_hex = "0123456789ABCDEF"; + result[0] = nibble_to_hex[byte / 16]; + result[1] = nibble_to_hex[byte % 16]; + return result; + } + + // templates to avoid warnings about useless casts + template ::value, int> = 0> + bool is_negative_number(NumberType x) + { + return x < 0; + } + + template < typename NumberType, enable_if_t ::value, int > = 0 > + bool is_negative_number(NumberType /*unused*/) + { + return false; + } + + /*! + @brief dump an integer + Dump a given integer to output stream @a o. Works internally with + @a number_buffer. + @param[in] x integer number (signed or unsigned) to dump + @tparam NumberType either @a number_integer_t or @a number_unsigned_t + */ + template < typename NumberType, detail::enable_if_t < + std::is_integral::value || + std::is_same::value || + std::is_same::value || + std::is_same::value, + int > = 0 > + void dump_integer(NumberType x) + { + static constexpr std::array, 100> digits_to_99 + { + { + {{'0', '0'}}, {{'0', '1'}}, {{'0', '2'}}, {{'0', '3'}}, {{'0', '4'}}, {{'0', '5'}}, {{'0', '6'}}, {{'0', '7'}}, {{'0', '8'}}, {{'0', '9'}}, + {{'1', '0'}}, {{'1', '1'}}, {{'1', '2'}}, {{'1', '3'}}, {{'1', '4'}}, {{'1', '5'}}, {{'1', '6'}}, {{'1', '7'}}, {{'1', '8'}}, {{'1', '9'}}, + {{'2', '0'}}, {{'2', '1'}}, {{'2', '2'}}, {{'2', '3'}}, {{'2', '4'}}, {{'2', '5'}}, {{'2', '6'}}, {{'2', '7'}}, {{'2', '8'}}, {{'2', '9'}}, + {{'3', '0'}}, {{'3', '1'}}, {{'3', '2'}}, {{'3', '3'}}, {{'3', '4'}}, {{'3', '5'}}, {{'3', '6'}}, {{'3', '7'}}, {{'3', '8'}}, {{'3', '9'}}, + {{'4', '0'}}, {{'4', '1'}}, {{'4', '2'}}, {{'4', '3'}}, {{'4', '4'}}, {{'4', '5'}}, {{'4', '6'}}, {{'4', '7'}}, {{'4', '8'}}, {{'4', '9'}}, + {{'5', '0'}}, {{'5', '1'}}, {{'5', '2'}}, {{'5', '3'}}, {{'5', '4'}}, {{'5', '5'}}, {{'5', '6'}}, {{'5', '7'}}, {{'5', '8'}}, {{'5', '9'}}, + {{'6', '0'}}, {{'6', '1'}}, {{'6', '2'}}, {{'6', '3'}}, {{'6', '4'}}, {{'6', '5'}}, {{'6', '6'}}, {{'6', '7'}}, {{'6', '8'}}, {{'6', '9'}}, + {{'7', '0'}}, {{'7', '1'}}, {{'7', '2'}}, {{'7', '3'}}, {{'7', '4'}}, {{'7', '5'}}, {{'7', '6'}}, {{'7', '7'}}, {{'7', '8'}}, {{'7', '9'}}, + {{'8', '0'}}, {{'8', '1'}}, {{'8', '2'}}, {{'8', '3'}}, {{'8', '4'}}, {{'8', '5'}}, {{'8', '6'}}, {{'8', '7'}}, {{'8', '8'}}, {{'8', '9'}}, + {{'9', '0'}}, {{'9', '1'}}, {{'9', '2'}}, {{'9', '3'}}, {{'9', '4'}}, {{'9', '5'}}, {{'9', '6'}}, {{'9', '7'}}, {{'9', '8'}}, {{'9', '9'}}, + } + }; + + // special case for "0" + if (x == 0) + { + o->write_character('0'); + return; + } + + // use a pointer to fill the buffer + auto buffer_ptr = number_buffer.begin(); // NOLINT(llvm-qualified-auto,readability-qualified-auto,cppcoreguidelines-pro-type-vararg,hicpp-vararg) + + number_unsigned_t abs_value; + + unsigned int n_chars{}; + + if (is_negative_number(x)) + { + *buffer_ptr = '-'; + abs_value = remove_sign(static_cast(x)); + + // account one more byte for the minus sign + n_chars = 1 + count_digits(abs_value); + } + else + { + abs_value = static_cast(x); + n_chars = count_digits(abs_value); + } + + // spare 1 byte for '\0' + JSON_ASSERT(n_chars < number_buffer.size() - 1); + + // jump to the end to generate the string from backward, + // so we later avoid reversing the result + buffer_ptr += n_chars; + + // Fast int2ascii implementation inspired by "Fastware" talk by Andrei Alexandrescu + // See: https://www.youtube.com/watch?v=o4-CwDo2zpg + while (abs_value >= 100) + { + const auto digits_index = static_cast((abs_value % 100)); + abs_value /= 100; + *(--buffer_ptr) = digits_to_99[digits_index][1]; + *(--buffer_ptr) = digits_to_99[digits_index][0]; + } + + if (abs_value >= 10) + { + const auto digits_index = static_cast(abs_value); + *(--buffer_ptr) = digits_to_99[digits_index][1]; + *(--buffer_ptr) = digits_to_99[digits_index][0]; + } + else + { + *(--buffer_ptr) = static_cast('0' + abs_value); + } + + o->write_characters(number_buffer.data(), n_chars); + } + + /*! + @brief dump a floating-point number + Dump a given floating-point number to output stream @a o. Works internally + with @a number_buffer. + @param[in] x floating-point number to dump + */ + void dump_float(number_float_t x) + { + // NaN / inf + if (!std::isfinite(x)) + { + o->write_characters("null", 4); + return; + } + + // If number_float_t is an IEEE-754 single or double precision number, + // use the Grisu2 algorithm to produce short numbers which are + // guaranteed to round-trip, using strtof and strtod, resp. + // + // NB: The test below works if == . + static constexpr bool is_ieee_single_or_double + = (std::numeric_limits::is_iec559 && std::numeric_limits::digits == 24 && std::numeric_limits::max_exponent == 128) || + (std::numeric_limits::is_iec559 && std::numeric_limits::digits == 53 && std::numeric_limits::max_exponent == 1024); + + dump_float(x, std::integral_constant()); + } + + void dump_float(number_float_t x, std::true_type /*is_ieee_single_or_double*/) + { + auto* begin = number_buffer.data(); + auto* end = ::nlohmann::detail::to_chars(begin, begin + number_buffer.size(), x); + + o->write_characters(begin, static_cast(end - begin)); + } + + void dump_float(number_float_t x, std::false_type /*is_ieee_single_or_double*/) + { + // get number of digits for a float -> text -> float round-trip + static constexpr auto d = std::numeric_limits::max_digits10; + + // the actual conversion + // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + std::ptrdiff_t len = (std::snprintf)(number_buffer.data(), number_buffer.size(), "%.*g", d, x); + + // negative value indicates an error + JSON_ASSERT(len > 0); + // check if buffer was large enough + JSON_ASSERT(static_cast(len) < number_buffer.size()); + + // erase thousands separator + if (thousands_sep != '\0') + { + // NOLINTNEXTLINE(readability-qualified-auto,llvm-qualified-auto): std::remove returns an iterator, see https://github.com/nlohmann/json/issues/3081 + const auto end = std::remove(number_buffer.begin(), number_buffer.begin() + len, thousands_sep); + std::fill(end, number_buffer.end(), '\0'); + JSON_ASSERT((end - number_buffer.begin()) <= len); + len = (end - number_buffer.begin()); + } + + // convert decimal point to '.' + if (decimal_point != '\0' && decimal_point != '.') + { + // NOLINTNEXTLINE(readability-qualified-auto,llvm-qualified-auto): std::find returns an iterator, see https://github.com/nlohmann/json/issues/3081 + const auto dec_pos = std::find(number_buffer.begin(), number_buffer.end(), decimal_point); + if (dec_pos != number_buffer.end()) + { + *dec_pos = '.'; + } + } + + o->write_characters(number_buffer.data(), static_cast(len)); + + // determine if we need to append ".0" + const bool value_is_int_like = + std::none_of(number_buffer.begin(), number_buffer.begin() + len + 1, + [](char c) + { + return c == '.' || c == 'e'; + }); + + if (value_is_int_like) + { + o->write_characters(".0", 2); + } + } + + /*! + @brief check whether a string is UTF-8 encoded + The function checks each byte of a string whether it is UTF-8 encoded. The + result of the check is stored in the @a state parameter. The function must + be called initially with state 0 (accept). State 1 means the string must + be rejected, because the current byte is not allowed. If the string is + completely processed, but the state is non-zero, the string ended + prematurely; that is, the last byte indicated more bytes should have + followed. + @param[in,out] state the state of the decoding + @param[in,out] codep codepoint (valid only if resulting state is UTF8_ACCEPT) + @param[in] byte next byte to decode + @return new state + @note The function has been edited: a std::array is used. + @copyright Copyright (c) 2008-2009 Bjoern Hoehrmann + @sa http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ + */ + static std::uint8_t decode(std::uint8_t& state, std::uint32_t& codep, const std::uint8_t byte) noexcept + { + static const std::array utf8d = + { + { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 00..1F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20..3F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40..5F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60..7F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, // 80..9F + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, // A0..BF + 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // C0..DF + 0xA, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x4, 0x3, 0x3, // E0..EF + 0xB, 0x6, 0x6, 0x6, 0x5, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, // F0..FF + 0x0, 0x1, 0x2, 0x3, 0x5, 0x8, 0x7, 0x1, 0x1, 0x1, 0x4, 0x6, 0x1, 0x1, 0x1, 0x1, // s0..s0 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, // s1..s2 + 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, // s3..s4 + 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, // s5..s6 + 1, 3, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 // s7..s8 + } + }; + + JSON_ASSERT(byte < utf8d.size()); + const std::uint8_t type = utf8d[byte]; + + codep = (state != UTF8_ACCEPT) + ? (byte & 0x3fu) | (codep << 6u) + : (0xFFu >> type) & (byte); + + std::size_t index = 256u + static_cast(state) * 16u + static_cast(type); + JSON_ASSERT(index < 400); + state = utf8d[index]; + return state; + } + + /* + * Overload to make the compiler happy while it is instantiating + * dump_integer for number_unsigned_t. + * Must never be called. + */ + number_unsigned_t remove_sign(number_unsigned_t x) + { + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + return x; // LCOV_EXCL_LINE + } + + /* + * Helper function for dump_integer + * + * This function takes a negative signed integer and returns its absolute + * value as unsigned integer. The plus/minus shuffling is necessary as we can + * not directly remove the sign of an arbitrary signed integer as the + * absolute values of INT_MIN and INT_MAX are usually not the same. See + * #1708 for details. + */ + inline number_unsigned_t remove_sign(number_integer_t x) noexcept + { + JSON_ASSERT(x < 0 && x < (std::numeric_limits::max)()); // NOLINT(misc-redundant-expression) + return static_cast(-(x + 1)) + 1; + } + + private: + /// the output of the serializer + output_adapter_t o = nullptr; + + /// a (hopefully) large enough character buffer + std::array number_buffer{{}}; + + /// the locale + const std::lconv* loc = nullptr; + /// the locale's thousand separator character + const char thousands_sep = '\0'; + /// the locale's decimal point character + const char decimal_point = '\0'; + + /// string buffer + std::array string_buffer{{}}; + + /// the indentation character + const char indent_char; + /// the indentation string + string_t indent_string; + + /// error_handler how to react on decoding errors + const error_handler_t error_handler; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + +// #include + + +#include // less +#include // initializer_list +#include // input_iterator_tag, iterator_traits +#include // allocator +#include // for out_of_range +#include // enable_if, is_convertible +#include // pair +#include // vector + +// #include + + +namespace nlohmann +{ + +/// ordered_map: a minimal map-like container that preserves insertion order +/// for use within nlohmann::basic_json +template , + class Allocator = std::allocator>> + struct ordered_map : std::vector, Allocator> +{ + using key_type = Key; + using mapped_type = T; + using Container = std::vector, Allocator>; + using iterator = typename Container::iterator; + using const_iterator = typename Container::const_iterator; + using size_type = typename Container::size_type; + using value_type = typename Container::value_type; + + // Explicit constructors instead of `using Container::Container` + // otherwise older compilers choke on it (GCC <= 5.5, xcode <= 9.4) + ordered_map() noexcept(noexcept(Container())) : Container{} {} + explicit ordered_map(const Allocator& alloc) noexcept(noexcept(Container(alloc))) : Container{alloc} {} + template + ordered_map(It first, It last, const Allocator& alloc = Allocator()) + : Container{first, last, alloc} {} + ordered_map(std::initializer_list init, const Allocator& alloc = Allocator() ) + : Container{init, alloc} {} + + std::pair emplace(const key_type& key, T&& t) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return {it, false}; + } + } + Container::emplace_back(key, t); + return {--this->end(), true}; + } + + T& operator[](const Key& key) + { + return emplace(key, T{}).first->second; + } + + const T& operator[](const Key& key) const + { + return at(key); + } + + T& at(const Key& key) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return it->second; + } + } + + JSON_THROW(std::out_of_range("key not found")); + } + + const T& at(const Key& key) const + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return it->second; + } + } + + JSON_THROW(std::out_of_range("key not found")); + } + + size_type erase(const Key& key) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + // Since we cannot move const Keys, re-construct them in place + for (auto next = it; ++next != this->end(); ++it) + { + it->~value_type(); // Destroy but keep allocation + new (&*it) value_type{std::move(*next)}; + } + Container::pop_back(); + return 1; + } + } + return 0; + } + + iterator erase(iterator pos) + { + return erase(pos, std::next(pos)); + } + + iterator erase(iterator first, iterator last) + { + const auto elements_affected = std::distance(first, last); + const auto offset = std::distance(Container::begin(), first); + + // This is the start situation. We need to delete elements_affected + // elements (3 in this example: e, f, g), and need to return an + // iterator past the last deleted element (h in this example). + // Note that offset is the distance from the start of the vector + // to first. We will need this later. + + // [ a, b, c, d, e, f, g, h, i, j ] + // ^ ^ + // first last + + // Since we cannot move const Keys, we re-construct them in place. + // We start at first and re-construct (viz. copy) the elements from + // the back of the vector. Example for first iteration: + + // ,--------. + // v | destroy e and re-construct with h + // [ a, b, c, d, e, f, g, h, i, j ] + // ^ ^ + // it it + elements_affected + + for (auto it = first; std::next(it, elements_affected) != Container::end(); ++it) + { + it->~value_type(); // destroy but keep allocation + new (&*it) value_type{std::move(*std::next(it, elements_affected))}; // "move" next element to it + } + + // [ a, b, c, d, h, i, j, h, i, j ] + // ^ ^ + // first last + + // remove the unneeded elements at the end of the vector + Container::resize(this->size() - static_cast(elements_affected)); + + // [ a, b, c, d, h, i, j ] + // ^ ^ + // first last + + // first is now pointing past the last deleted element, but we cannot + // use this iterator, because it may have been invalidated by the + // resize call. Instead, we can return begin() + offset. + return Container::begin() + offset; + } + + size_type count(const Key& key) const + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return 1; + } + } + return 0; + } + + iterator find(const Key& key) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return it; + } + } + return Container::end(); + } + + const_iterator find(const Key& key) const + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return it; + } + } + return Container::end(); + } + + std::pair insert( value_type&& value ) + { + return emplace(value.first, std::move(value.second)); + } + + std::pair insert( const value_type& value ) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == value.first) + { + return {it, false}; + } + } + Container::push_back(value); + return {--this->end(), true}; + } + + template + using require_input_iter = typename std::enable_if::iterator_category, + std::input_iterator_tag>::value>::type; + + template> + void insert(InputIt first, InputIt last) + { + for (auto it = first; it != last; ++it) + { + insert(*it); + } + } +}; + +} // namespace nlohmann + + +#if defined(JSON_HAS_CPP_17) + #include +#endif + +/*! +@brief namespace for Niels Lohmann +@see https://github.com/nlohmann +@since version 1.0.0 +*/ +namespace nlohmann +{ + +/*! +@brief a class to store JSON values +@internal +@invariant The member variables @a m_value and @a m_type have the following +relationship: +- If `m_type == value_t::object`, then `m_value.object != nullptr`. +- If `m_type == value_t::array`, then `m_value.array != nullptr`. +- If `m_type == value_t::string`, then `m_value.string != nullptr`. +The invariants are checked by member function assert_invariant(). +@note ObjectType trick from https://stackoverflow.com/a/9860911 +@endinternal +@since version 1.0.0 +@nosubgrouping +*/ +NLOHMANN_BASIC_JSON_TPL_DECLARATION +class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-special-member-functions) +{ + private: + template friend struct detail::external_constructor; + friend ::nlohmann::json_pointer; + + template + friend class ::nlohmann::detail::parser; + friend ::nlohmann::detail::serializer; + template + friend class ::nlohmann::detail::iter_impl; + template + friend class ::nlohmann::detail::binary_writer; + template + friend class ::nlohmann::detail::binary_reader; + template + friend class ::nlohmann::detail::json_sax_dom_parser; + template + friend class ::nlohmann::detail::json_sax_dom_callback_parser; + friend class ::nlohmann::detail::exception; + + /// workaround type for MSVC + using basic_json_t = NLOHMANN_BASIC_JSON_TPL; + + JSON_PRIVATE_UNLESS_TESTED: + // convenience aliases for types residing in namespace detail; + using lexer = ::nlohmann::detail::lexer_base; + + template + static ::nlohmann::detail::parser parser( + InputAdapterType adapter, + detail::parser_callback_tcb = nullptr, + const bool allow_exceptions = true, + const bool ignore_comments = false + ) + { + return ::nlohmann::detail::parser(std::move(adapter), + std::move(cb), allow_exceptions, ignore_comments); + } + + private: + using primitive_iterator_t = ::nlohmann::detail::primitive_iterator_t; + template + using internal_iterator = ::nlohmann::detail::internal_iterator; + template + using iter_impl = ::nlohmann::detail::iter_impl; + template + using iteration_proxy = ::nlohmann::detail::iteration_proxy; + template using json_reverse_iterator = ::nlohmann::detail::json_reverse_iterator; + + template + using output_adapter_t = ::nlohmann::detail::output_adapter_t; + + template + using binary_reader = ::nlohmann::detail::binary_reader; + template using binary_writer = ::nlohmann::detail::binary_writer; + + JSON_PRIVATE_UNLESS_TESTED: + using serializer = ::nlohmann::detail::serializer; + + public: + using value_t = detail::value_t; + /// JSON Pointer, see @ref nlohmann::json_pointer + using json_pointer = ::nlohmann::json_pointer; + template + using json_serializer = JSONSerializer; + /// how to treat decoding errors + using error_handler_t = detail::error_handler_t; + /// how to treat CBOR tags + using cbor_tag_handler_t = detail::cbor_tag_handler_t; + /// helper type for initializer lists of basic_json values + using initializer_list_t = std::initializer_list>; + + using input_format_t = detail::input_format_t; + /// SAX interface type, see @ref nlohmann::json_sax + using json_sax_t = json_sax; + + //////////////// + // exceptions // + //////////////// + + /// @name exceptions + /// Classes to implement user-defined exceptions. + /// @{ + + using exception = detail::exception; + using parse_error = detail::parse_error; + using invalid_iterator = detail::invalid_iterator; + using type_error = detail::type_error; + using out_of_range = detail::out_of_range; + using other_error = detail::other_error; + + /// @} + + + ///////////////////// + // container types // + ///////////////////// + + /// @name container types + /// The canonic container types to use @ref basic_json like any other STL + /// container. + /// @{ + + /// the type of elements in a basic_json container + using value_type = basic_json; + + /// the type of an element reference + using reference = value_type&; + /// the type of an element const reference + using const_reference = const value_type&; + + /// a type to represent differences between iterators + using difference_type = std::ptrdiff_t; + /// a type to represent container sizes + using size_type = std::size_t; + + /// the allocator type + using allocator_type = AllocatorType; + + /// the type of an element pointer + using pointer = typename std::allocator_traits::pointer; + /// the type of an element const pointer + using const_pointer = typename std::allocator_traits::const_pointer; + + /// an iterator for a basic_json container + using iterator = iter_impl; + /// a const iterator for a basic_json container + using const_iterator = iter_impl; + /// a reverse iterator for a basic_json container + using reverse_iterator = json_reverse_iterator; + /// a const reverse iterator for a basic_json container + using const_reverse_iterator = json_reverse_iterator; + + /// @} + + + /// @brief returns the allocator associated with the container + /// @sa https://json.nlohmann.me/api/basic_json/get_allocator/ + static allocator_type get_allocator() + { + return allocator_type(); + } + + /// @brief returns version information on the library + /// @sa https://json.nlohmann.me/api/basic_json/meta/ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json meta() + { + basic_json result; + + result["copyright"] = "(C) 2013-2022 Niels Lohmann"; + result["name"] = "JSON for Modern C++"; + result["url"] = "https://github.com/nlohmann/json"; + result["version"]["string"] = + std::to_string(NLOHMANN_JSON_VERSION_MAJOR) + "." + + std::to_string(NLOHMANN_JSON_VERSION_MINOR) + "." + + std::to_string(NLOHMANN_JSON_VERSION_PATCH); + result["version"]["major"] = NLOHMANN_JSON_VERSION_MAJOR; + result["version"]["minor"] = NLOHMANN_JSON_VERSION_MINOR; + result["version"]["patch"] = NLOHMANN_JSON_VERSION_PATCH; + +#ifdef _WIN32 + result["platform"] = "win32"; +#elif defined __linux__ + result["platform"] = "linux"; +#elif defined __APPLE__ + result["platform"] = "apple"; +#elif defined __unix__ + result["platform"] = "unix"; +#else + result["platform"] = "unknown"; +#endif + +#if defined(__ICC) || defined(__INTEL_COMPILER) + result["compiler"] = {{"family", "icc"}, {"version", __INTEL_COMPILER}}; +#elif defined(__clang__) + result["compiler"] = {{"family", "clang"}, {"version", __clang_version__}}; +#elif defined(__GNUC__) || defined(__GNUG__) + result["compiler"] = {{"family", "gcc"}, {"version", std::to_string(__GNUC__) + "." + std::to_string(__GNUC_MINOR__) + "." + std::to_string(__GNUC_PATCHLEVEL__)}}; +#elif defined(__HP_cc) || defined(__HP_aCC) + result["compiler"] = "hp" +#elif defined(__IBMCPP__) + result["compiler"] = {{"family", "ilecpp"}, {"version", __IBMCPP__}}; +#elif defined(_MSC_VER) + result["compiler"] = {{"family", "msvc"}, {"version", _MSC_VER}}; +#elif defined(__PGI) + result["compiler"] = {{"family", "pgcpp"}, {"version", __PGI}}; +#elif defined(__SUNPRO_CC) + result["compiler"] = {{"family", "sunpro"}, {"version", __SUNPRO_CC}}; +#else + result["compiler"] = {{"family", "unknown"}, {"version", "unknown"}}; +#endif + +#ifdef __cplusplus + result["compiler"]["c++"] = std::to_string(__cplusplus); +#else + result["compiler"]["c++"] = "unknown"; +#endif + return result; + } + + + /////////////////////////// + // JSON value data types // + /////////////////////////// + + /// @name JSON value data types + /// The data types to store a JSON value. These types are derived from + /// the template arguments passed to class @ref basic_json. + /// @{ + + /// @brief object key comparator type + /// @sa https://json.nlohmann.me/api/basic_json/object_comparator_t/ +#if defined(JSON_HAS_CPP_14) + // Use transparent comparator if possible, combined with perfect forwarding + // on find() and count() calls prevents unnecessary string construction. + using object_comparator_t = std::less<>; +#else + using object_comparator_t = std::less; +#endif + + /// @brief a type for an object + /// @sa https://json.nlohmann.me/api/basic_json/object_t/ + using object_t = ObjectType>>; + + /// @brief a type for an array + /// @sa https://json.nlohmann.me/api/basic_json/array_t/ + using array_t = ArrayType>; + + /// @brief a type for a string + /// @sa https://json.nlohmann.me/api/basic_json/string_t/ + using string_t = StringType; + + /// @brief a type for a boolean + /// @sa https://json.nlohmann.me/api/basic_json/boolean_t/ + using boolean_t = BooleanType; + + /// @brief a type for a number (integer) + /// @sa https://json.nlohmann.me/api/basic_json/number_integer_t/ + using number_integer_t = NumberIntegerType; + + /// @brief a type for a number (unsigned) + /// @sa https://json.nlohmann.me/api/basic_json/number_unsigned_t/ + using number_unsigned_t = NumberUnsignedType; + + /// @brief a type for a number (floating-point) + /// @sa https://json.nlohmann.me/api/basic_json/number_float_t/ + using number_float_t = NumberFloatType; + + /// @brief a type for a packed binary type + /// @sa https://json.nlohmann.me/api/basic_json/binary_t/ + using binary_t = nlohmann::byte_container_with_subtype; + + /// @} + + private: + + /// helper for exception-safe object creation + template + JSON_HEDLEY_RETURNS_NON_NULL + static T* create(Args&& ... args) + { + AllocatorType alloc; + using AllocatorTraits = std::allocator_traits>; + + auto deleter = [&](T * obj) + { + AllocatorTraits::deallocate(alloc, obj, 1); + }; + std::unique_ptr obj(AllocatorTraits::allocate(alloc, 1), deleter); + AllocatorTraits::construct(alloc, obj.get(), std::forward(args)...); + JSON_ASSERT(obj != nullptr); + return obj.release(); + } + + //////////////////////// + // JSON value storage // + //////////////////////// + + JSON_PRIVATE_UNLESS_TESTED: + /*! + @brief a JSON value + The actual storage for a JSON value of the @ref basic_json class. This + union combines the different storage types for the JSON value types + defined in @ref value_t. + JSON type | value_t type | used type + --------- | --------------- | ------------------------ + object | object | pointer to @ref object_t + array | array | pointer to @ref array_t + string | string | pointer to @ref string_t + boolean | boolean | @ref boolean_t + number | number_integer | @ref number_integer_t + number | number_unsigned | @ref number_unsigned_t + number | number_float | @ref number_float_t + binary | binary | pointer to @ref binary_t + null | null | *no value is stored* + @note Variable-length types (objects, arrays, and strings) are stored as + pointers. The size of the union should not exceed 64 bits if the default + value types are used. + @since version 1.0.0 + */ + union json_value + { + /// object (stored with pointer to save storage) + object_t* object; + /// array (stored with pointer to save storage) + array_t* array; + /// string (stored with pointer to save storage) + string_t* string; + /// binary (stored with pointer to save storage) + binary_t* binary; + /// boolean + boolean_t boolean; + /// number (integer) + number_integer_t number_integer; + /// number (unsigned integer) + number_unsigned_t number_unsigned; + /// number (floating-point) + number_float_t number_float; + + /// default constructor (for null values) + json_value() = default; + /// constructor for booleans + json_value(boolean_t v) noexcept : boolean(v) {} + /// constructor for numbers (integer) + json_value(number_integer_t v) noexcept : number_integer(v) {} + /// constructor for numbers (unsigned) + json_value(number_unsigned_t v) noexcept : number_unsigned(v) {} + /// constructor for numbers (floating-point) + json_value(number_float_t v) noexcept : number_float(v) {} + /// constructor for empty values of a given type + json_value(value_t t) + { + switch (t) + { + case value_t::object: + { + object = create(); + break; + } + + case value_t::array: + { + array = create(); + break; + } + + case value_t::string: + { + string = create(""); + break; + } + + case value_t::binary: + { + binary = create(); + break; + } + + case value_t::boolean: + { + boolean = static_cast(false); + break; + } + + case value_t::number_integer: + { + number_integer = static_cast(0); + break; + } + + case value_t::number_unsigned: + { + number_unsigned = static_cast(0); + break; + } + + case value_t::number_float: + { + number_float = static_cast(0.0); + break; + } + + case value_t::null: + { + object = nullptr; // silence warning, see #821 + break; + } + + case value_t::discarded: + default: + { + object = nullptr; // silence warning, see #821 + if (JSON_HEDLEY_UNLIKELY(t == value_t::null)) + { + JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 3.10.5", basic_json())); // LCOV_EXCL_LINE + } + break; + } + } + } + + /// constructor for strings + json_value(const string_t& value) : string(create(value)) {} + + /// constructor for rvalue strings + json_value(string_t&& value) : string(create(std::move(value))) {} + + /// constructor for objects + json_value(const object_t& value) : object(create(value)) {} + + /// constructor for rvalue objects + json_value(object_t&& value) : object(create(std::move(value))) {} + + /// constructor for arrays + json_value(const array_t& value) : array(create(value)) {} + + /// constructor for rvalue arrays + json_value(array_t&& value) : array(create(std::move(value))) {} + + /// constructor for binary arrays + json_value(const typename binary_t::container_type& value) : binary(create(value)) {} + + /// constructor for rvalue binary arrays + json_value(typename binary_t::container_type&& value) : binary(create(std::move(value))) {} + + /// constructor for binary arrays (internal type) + json_value(const binary_t& value) : binary(create(value)) {} + + /// constructor for rvalue binary arrays (internal type) + json_value(binary_t&& value) : binary(create(std::move(value))) {} + + void destroy(value_t t) + { + if (t == value_t::array || t == value_t::object) + { + // flatten the current json_value to a heap-allocated stack + std::vector stack; + + // move the top-level items to stack + if (t == value_t::array) + { + stack.reserve(array->size()); + std::move(array->begin(), array->end(), std::back_inserter(stack)); + } + else + { + stack.reserve(object->size()); + for (auto&& it : *object) + { + stack.push_back(std::move(it.second)); + } + } + + while (!stack.empty()) + { + // move the last item to local variable to be processed + basic_json current_item(std::move(stack.back())); + stack.pop_back(); + + // if current_item is array/object, move + // its children to the stack to be processed later + if (current_item.is_array()) + { + std::move(current_item.m_value.array->begin(), current_item.m_value.array->end(), std::back_inserter(stack)); + + current_item.m_value.array->clear(); + } + else if (current_item.is_object()) + { + for (auto&& it : *current_item.m_value.object) + { + stack.push_back(std::move(it.second)); + } + + current_item.m_value.object->clear(); + } + + // it's now safe that current_item get destructed + // since it doesn't have any children + } + } + + switch (t) + { + case value_t::object: + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, object); + std::allocator_traits::deallocate(alloc, object, 1); + break; + } + + case value_t::array: + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, array); + std::allocator_traits::deallocate(alloc, array, 1); + break; + } + + case value_t::string: + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, string); + std::allocator_traits::deallocate(alloc, string, 1); + break; + } + + case value_t::binary: + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, binary); + std::allocator_traits::deallocate(alloc, binary, 1); + break; + } + + case value_t::null: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::discarded: + default: + { + break; + } + } + } + }; + + private: + /*! + @brief checks the class invariants + This function asserts the class invariants. It needs to be called at the + end of every constructor to make sure that created objects respect the + invariant. Furthermore, it has to be called each time the type of a JSON + value is changed, because the invariant expresses a relationship between + @a m_type and @a m_value. + Furthermore, the parent relation is checked for arrays and objects: If + @a check_parents true and the value is an array or object, then the + container's elements must have the current value as parent. + @param[in] check_parents whether the parent relation should be checked. + The value is true by default and should only be set to false + during destruction of objects when the invariant does not + need to hold. + */ + void assert_invariant(bool check_parents = true) const noexcept + { + JSON_ASSERT(m_type != value_t::object || m_value.object != nullptr); + JSON_ASSERT(m_type != value_t::array || m_value.array != nullptr); + JSON_ASSERT(m_type != value_t::string || m_value.string != nullptr); + JSON_ASSERT(m_type != value_t::binary || m_value.binary != nullptr); + +#if JSON_DIAGNOSTICS + JSON_TRY + { + // cppcheck-suppress assertWithSideEffect + JSON_ASSERT(!check_parents || !is_structured() || std::all_of(begin(), end(), [this](const basic_json & j) + { + return j.m_parent == this; + })); + } + JSON_CATCH(...) {} // LCOV_EXCL_LINE +#endif + static_cast(check_parents); + } + + void set_parents() + { +#if JSON_DIAGNOSTICS + switch (m_type) + { + case value_t::array: + { + for (auto& element : *m_value.array) + { + element.m_parent = this; + } + break; + } + + case value_t::object: + { + for (auto& element : *m_value.object) + { + element.second.m_parent = this; + } + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + break; + } +#endif + } + + iterator set_parents(iterator it, typename iterator::difference_type count_set_parents) + { +#if JSON_DIAGNOSTICS + for (typename iterator::difference_type i = 0; i < count_set_parents; ++i) + { + (it + i)->m_parent = this; + } +#else + static_cast(count_set_parents); +#endif + return it; + } + + reference set_parent(reference j, std::size_t old_capacity = static_cast(-1)) + { +#if JSON_DIAGNOSTICS + if (old_capacity != static_cast(-1)) + { + // see https://github.com/nlohmann/json/issues/2838 + JSON_ASSERT(type() == value_t::array); + if (JSON_HEDLEY_UNLIKELY(m_value.array->capacity() != old_capacity)) + { + // capacity has changed: update all parents + set_parents(); + return j; + } + } + + // ordered_json uses a vector internally, so pointers could have + // been invalidated; see https://github.com/nlohmann/json/issues/2962 +#ifdef JSON_HEDLEY_MSVC_VERSION +#pragma warning(push ) +#pragma warning(disable : 4127) // ignore warning to replace if with if constexpr +#endif + if (detail::is_ordered_map::value) + { + set_parents(); + return j; + } +#ifdef JSON_HEDLEY_MSVC_VERSION +#pragma warning( pop ) +#endif + + j.m_parent = this; +#else + static_cast(j); + static_cast(old_capacity); +#endif + return j; + } + + public: + ////////////////////////// + // JSON parser callback // + ////////////////////////// + + /// @brief parser event types + /// @sa https://json.nlohmann.me/api/basic_json/parse_event_t/ + using parse_event_t = detail::parse_event_t; + + /// @brief per-element parser callback type + /// @sa https://json.nlohmann.me/api/basic_json/parser_callback_t/ + using parser_callback_t = detail::parser_callback_t; + + ////////////////// + // constructors // + ////////////////// + + /// @name constructors and destructors + /// Constructors of class @ref basic_json, copy/move constructor, copy + /// assignment, static functions creating objects, and the destructor. + /// @{ + + /// @brief create an empty value with a given type + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + basic_json(const value_t v) + : m_type(v), m_value(v) + { + assert_invariant(); + } + + /// @brief create a null object + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + basic_json(std::nullptr_t = nullptr) noexcept + : basic_json(value_t::null) + { + assert_invariant(); + } + + /// @brief create a JSON value from compatible types + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + template < typename CompatibleType, + typename U = detail::uncvref_t, + detail::enable_if_t < + !detail::is_basic_json::value && detail::is_compatible_type::value, int > = 0 > + basic_json(CompatibleType && val) noexcept(noexcept( // NOLINT(bugprone-forwarding-reference-overload,bugprone-exception-escape) + JSONSerializer::to_json(std::declval(), + std::forward(val)))) + { + JSONSerializer::to_json(*this, std::forward(val)); + set_parents(); + assert_invariant(); + } + + /// @brief create a JSON value from an existing one + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + template < typename BasicJsonType, + detail::enable_if_t < + detail::is_basic_json::value&& !std::is_same::value, int > = 0 > + basic_json(const BasicJsonType& val) + { + using other_boolean_t = typename BasicJsonType::boolean_t; + using other_number_float_t = typename BasicJsonType::number_float_t; + using other_number_integer_t = typename BasicJsonType::number_integer_t; + using other_number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using other_string_t = typename BasicJsonType::string_t; + using other_object_t = typename BasicJsonType::object_t; + using other_array_t = typename BasicJsonType::array_t; + using other_binary_t = typename BasicJsonType::binary_t; + + switch (val.type()) + { + case value_t::boolean: + JSONSerializer::to_json(*this, val.template get()); + break; + case value_t::number_float: + JSONSerializer::to_json(*this, val.template get()); + break; + case value_t::number_integer: + JSONSerializer::to_json(*this, val.template get()); + break; + case value_t::number_unsigned: + JSONSerializer::to_json(*this, val.template get()); + break; + case value_t::string: + JSONSerializer::to_json(*this, val.template get_ref()); + break; + case value_t::object: + JSONSerializer::to_json(*this, val.template get_ref()); + break; + case value_t::array: + JSONSerializer::to_json(*this, val.template get_ref()); + break; + case value_t::binary: + JSONSerializer::to_json(*this, val.template get_ref()); + break; + case value_t::null: + *this = nullptr; + break; + case value_t::discarded: + m_type = value_t::discarded; + break; + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + set_parents(); + assert_invariant(); + } + + /// @brief create a container (array or object) from an initializer list + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + basic_json(initializer_list_t init, + bool type_deduction = true, + value_t manual_type = value_t::array) + { + // check if each element is an array with two elements whose first + // element is a string + bool is_an_object = std::all_of(init.begin(), init.end(), + [](const detail::json_ref& element_ref) + { + return element_ref->is_array() && element_ref->size() == 2 && (*element_ref)[0].is_string(); + }); + + // adjust type if type deduction is not wanted + if (!type_deduction) + { + // if array is wanted, do not create an object though possible + if (manual_type == value_t::array) + { + is_an_object = false; + } + + // if object is wanted but impossible, throw an exception + if (JSON_HEDLEY_UNLIKELY(manual_type == value_t::object && !is_an_object)) + { + JSON_THROW(type_error::create(301, "cannot create object from initializer list", basic_json())); + } + } + + if (is_an_object) + { + // the initializer list is a list of pairs -> create object + m_type = value_t::object; + m_value = value_t::object; + + for (auto& element_ref : init) + { + auto element = element_ref.moved_or_copied(); + m_value.object->emplace( + std::move(*((*element.m_value.array)[0].m_value.string)), + std::move((*element.m_value.array)[1])); + } + } + else + { + // the initializer list describes an array -> create array + m_type = value_t::array; + m_value.array = create(init.begin(), init.end()); + } + + set_parents(); + assert_invariant(); + } + + /// @brief explicitly create a binary array (without subtype) + /// @sa https://json.nlohmann.me/api/basic_json/binary/ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json binary(const typename binary_t::container_type& init) + { + auto res = basic_json(); + res.m_type = value_t::binary; + res.m_value = init; + return res; + } + + /// @brief explicitly create a binary array (with subtype) + /// @sa https://json.nlohmann.me/api/basic_json/binary/ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json binary(const typename binary_t::container_type& init, typename binary_t::subtype_type subtype) + { + auto res = basic_json(); + res.m_type = value_t::binary; + res.m_value = binary_t(init, subtype); + return res; + } + + /// @brief explicitly create a binary array + /// @sa https://json.nlohmann.me/api/basic_json/binary/ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json binary(typename binary_t::container_type&& init) + { + auto res = basic_json(); + res.m_type = value_t::binary; + res.m_value = std::move(init); + return res; + } + + /// @brief explicitly create a binary array (with subtype) + /// @sa https://json.nlohmann.me/api/basic_json/binary/ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json binary(typename binary_t::container_type&& init, typename binary_t::subtype_type subtype) + { + auto res = basic_json(); + res.m_type = value_t::binary; + res.m_value = binary_t(std::move(init), subtype); + return res; + } + + /// @brief explicitly create an array from an initializer list + /// @sa https://json.nlohmann.me/api/basic_json/array/ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json array(initializer_list_t init = {}) + { + return basic_json(init, false, value_t::array); + } + + /// @brief explicitly create an object from an initializer list + /// @sa https://json.nlohmann.me/api/basic_json/object/ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json object(initializer_list_t init = {}) + { + return basic_json(init, false, value_t::object); + } + + /// @brief construct an array with count copies of given value + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + basic_json(size_type cnt, const basic_json& val) + : m_type(value_t::array) + { + m_value.array = create(cnt, val); + set_parents(); + assert_invariant(); + } + + /// @brief construct a JSON container given an iterator range + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + template < class InputIT, typename std::enable_if < + std::is_same::value || + std::is_same::value, int >::type = 0 > + basic_json(InputIT first, InputIT last) + { + JSON_ASSERT(first.m_object != nullptr); + JSON_ASSERT(last.m_object != nullptr); + + // make sure iterator fits the current value + if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) + { + JSON_THROW(invalid_iterator::create(201, "iterators are not compatible", basic_json())); + } + + // copy type from first iterator + m_type = first.m_object->m_type; + + // check if iterator range is complete for primitive values + switch (m_type) + { + case value_t::boolean: + case value_t::number_float: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::string: + { + if (JSON_HEDLEY_UNLIKELY(!first.m_it.primitive_iterator.is_begin() + || !last.m_it.primitive_iterator.is_end())) + { + JSON_THROW(invalid_iterator::create(204, "iterators out of range", *first.m_object)); + } + break; + } + + case value_t::null: + case value_t::object: + case value_t::array: + case value_t::binary: + case value_t::discarded: + default: + break; + } + + switch (m_type) + { + case value_t::number_integer: + { + m_value.number_integer = first.m_object->m_value.number_integer; + break; + } + + case value_t::number_unsigned: + { + m_value.number_unsigned = first.m_object->m_value.number_unsigned; + break; + } + + case value_t::number_float: + { + m_value.number_float = first.m_object->m_value.number_float; + break; + } + + case value_t::boolean: + { + m_value.boolean = first.m_object->m_value.boolean; + break; + } + + case value_t::string: + { + m_value = *first.m_object->m_value.string; + break; + } + + case value_t::object: + { + m_value.object = create(first.m_it.object_iterator, + last.m_it.object_iterator); + break; + } + + case value_t::array: + { + m_value.array = create(first.m_it.array_iterator, + last.m_it.array_iterator); + break; + } + + case value_t::binary: + { + m_value = *first.m_object->m_value.binary; + break; + } + + case value_t::null: + case value_t::discarded: + default: + JSON_THROW(invalid_iterator::create(206, "cannot construct with iterators from " + std::string(first.m_object->type_name()), *first.m_object)); + } + + set_parents(); + assert_invariant(); + } + + + /////////////////////////////////////// + // other constructors and destructor // + /////////////////////////////////////// + + template, + std::is_same>::value, int> = 0 > + basic_json(const JsonRef& ref) : basic_json(ref.moved_or_copied()) {} + + /// @brief copy constructor + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + basic_json(const basic_json& other) + : m_type(other.m_type) + { + // check of passed value is valid + other.assert_invariant(); + + switch (m_type) + { + case value_t::object: + { + m_value = *other.m_value.object; + break; + } + + case value_t::array: + { + m_value = *other.m_value.array; + break; + } + + case value_t::string: + { + m_value = *other.m_value.string; + break; + } + + case value_t::boolean: + { + m_value = other.m_value.boolean; + break; + } + + case value_t::number_integer: + { + m_value = other.m_value.number_integer; + break; + } + + case value_t::number_unsigned: + { + m_value = other.m_value.number_unsigned; + break; + } + + case value_t::number_float: + { + m_value = other.m_value.number_float; + break; + } + + case value_t::binary: + { + m_value = *other.m_value.binary; + break; + } + + case value_t::null: + case value_t::discarded: + default: + break; + } + + set_parents(); + assert_invariant(); + } + + /// @brief move constructor + /// @sa https://json.nlohmann.me/api/basic_json/basic_json/ + basic_json(basic_json&& other) noexcept + : m_type(std::move(other.m_type)), + m_value(std::move(other.m_value)) + { + // check that passed value is valid + other.assert_invariant(false); + + // invalidate payload + other.m_type = value_t::null; + other.m_value = {}; + + set_parents(); + assert_invariant(); + } + + /// @brief copy assignment + /// @sa https://json.nlohmann.me/api/basic_json/operator=/ + basic_json& operator=(basic_json other) noexcept ( + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value&& + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value + ) + { + // check that passed value is valid + other.assert_invariant(); + + using std::swap; + swap(m_type, other.m_type); + swap(m_value, other.m_value); + + set_parents(); + assert_invariant(); + return *this; + } + + /// @brief destructor + /// @sa https://json.nlohmann.me/api/basic_json/~basic_json/ + ~basic_json() noexcept + { + assert_invariant(false); + m_value.destroy(m_type); + } + + /// @} + + public: + /////////////////////// + // object inspection // + /////////////////////// + + /// @name object inspection + /// Functions to inspect the type of a JSON value. + /// @{ + + /// @brief serialization + /// @sa https://json.nlohmann.me/api/basic_json/dump/ + string_t dump(const int indent = -1, + const char indent_char = ' ', + const bool ensure_ascii = false, + const error_handler_t error_handler = error_handler_t::strict) const + { + string_t result; + serializer s(detail::output_adapter(result), indent_char, error_handler); + + if (indent >= 0) + { + s.dump(*this, true, ensure_ascii, static_cast(indent)); + } + else + { + s.dump(*this, false, ensure_ascii, 0); + } + + return result; + } + + /// @brief return the type of the JSON value (explicit) + /// @sa https://json.nlohmann.me/api/basic_json/type/ + constexpr value_t type() const noexcept + { + return m_type; + } + + /// @brief return whether type is primitive + /// @sa https://json.nlohmann.me/api/basic_json/is_primitive/ + constexpr bool is_primitive() const noexcept + { + return is_null() || is_string() || is_boolean() || is_number() || is_binary(); + } + + /// @brief return whether type is structured + /// @sa https://json.nlohmann.me/api/basic_json/is_structured/ + constexpr bool is_structured() const noexcept + { + return is_array() || is_object(); + } + + /// @brief return whether value is null + /// @sa https://json.nlohmann.me/api/basic_json/is_null/ + constexpr bool is_null() const noexcept + { + return m_type == value_t::null; + } + + /// @brief return whether value is a boolean + /// @sa https://json.nlohmann.me/api/basic_json/is_boolean/ + constexpr bool is_boolean() const noexcept + { + return m_type == value_t::boolean; + } + + /// @brief return whether value is a number + /// @sa https://json.nlohmann.me/api/basic_json/is_number/ + constexpr bool is_number() const noexcept + { + return is_number_integer() || is_number_float(); + } + + /// @brief return whether value is an integer number + /// @sa https://json.nlohmann.me/api/basic_json/is_number_integer/ + constexpr bool is_number_integer() const noexcept + { + return m_type == value_t::number_integer || m_type == value_t::number_unsigned; + } + + /// @brief return whether value is an unsigned integer number + /// @sa https://json.nlohmann.me/api/basic_json/is_number_unsigned/ + constexpr bool is_number_unsigned() const noexcept + { + return m_type == value_t::number_unsigned; + } + + /// @brief return whether value is a floating-point number + /// @sa https://json.nlohmann.me/api/basic_json/is_number_float/ + constexpr bool is_number_float() const noexcept + { + return m_type == value_t::number_float; + } + + /// @brief return whether value is an object + /// @sa https://json.nlohmann.me/api/basic_json/is_object/ + constexpr bool is_object() const noexcept + { + return m_type == value_t::object; + } + + /// @brief return whether value is an array + /// @sa https://json.nlohmann.me/api/basic_json/is_array/ + constexpr bool is_array() const noexcept + { + return m_type == value_t::array; + } + + /// @brief return whether value is a string + /// @sa https://json.nlohmann.me/api/basic_json/is_string/ + constexpr bool is_string() const noexcept + { + return m_type == value_t::string; + } + + /// @brief return whether value is a binary array + /// @sa https://json.nlohmann.me/api/basic_json/is_binary/ + constexpr bool is_binary() const noexcept + { + return m_type == value_t::binary; + } + + /// @brief return whether value is discarded + /// @sa https://json.nlohmann.me/api/basic_json/is_discarded/ + constexpr bool is_discarded() const noexcept + { + return m_type == value_t::discarded; + } + + /// @brief return the type of the JSON value (implicit) + /// @sa https://json.nlohmann.me/api/basic_json/operator_value_t/ + constexpr operator value_t() const noexcept + { + return m_type; + } + + /// @} + + private: + ////////////////// + // value access // + ////////////////// + + /// get a boolean (explicit) + boolean_t get_impl(boolean_t* /*unused*/) const + { + if (JSON_HEDLEY_LIKELY(is_boolean())) + { + return m_value.boolean; + } + + JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(type_name()), *this)); + } + + /// get a pointer to the value (object) + object_t* get_impl_ptr(object_t* /*unused*/) noexcept + { + return is_object() ? m_value.object : nullptr; + } + + /// get a pointer to the value (object) + constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept + { + return is_object() ? m_value.object : nullptr; + } + + /// get a pointer to the value (array) + array_t* get_impl_ptr(array_t* /*unused*/) noexcept + { + return is_array() ? m_value.array : nullptr; + } + + /// get a pointer to the value (array) + constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept + { + return is_array() ? m_value.array : nullptr; + } + + /// get a pointer to the value (string) + string_t* get_impl_ptr(string_t* /*unused*/) noexcept + { + return is_string() ? m_value.string : nullptr; + } + + /// get a pointer to the value (string) + constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept + { + return is_string() ? m_value.string : nullptr; + } + + /// get a pointer to the value (boolean) + boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept + { + return is_boolean() ? &m_value.boolean : nullptr; + } + + /// get a pointer to the value (boolean) + constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept + { + return is_boolean() ? &m_value.boolean : nullptr; + } + + /// get a pointer to the value (integer number) + number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept + { + return is_number_integer() ? &m_value.number_integer : nullptr; + } + + /// get a pointer to the value (integer number) + constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept + { + return is_number_integer() ? &m_value.number_integer : nullptr; + } + + /// get a pointer to the value (unsigned number) + number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept + { + return is_number_unsigned() ? &m_value.number_unsigned : nullptr; + } + + /// get a pointer to the value (unsigned number) + constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept + { + return is_number_unsigned() ? &m_value.number_unsigned : nullptr; + } + + /// get a pointer to the value (floating-point number) + number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept + { + return is_number_float() ? &m_value.number_float : nullptr; + } + + /// get a pointer to the value (floating-point number) + constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept + { + return is_number_float() ? &m_value.number_float : nullptr; + } + + /// get a pointer to the value (binary) + binary_t* get_impl_ptr(binary_t* /*unused*/) noexcept + { + return is_binary() ? m_value.binary : nullptr; + } + + /// get a pointer to the value (binary) + constexpr const binary_t* get_impl_ptr(const binary_t* /*unused*/) const noexcept + { + return is_binary() ? m_value.binary : nullptr; + } + + /*! + @brief helper function to implement get_ref() + This function helps to implement get_ref() without code duplication for + const and non-const overloads + @tparam ThisType will be deduced as `basic_json` or `const basic_json` + @throw type_error.303 if ReferenceType does not match underlying value + type of the current JSON + */ + template + static ReferenceType get_ref_impl(ThisType& obj) + { + // delegate the call to get_ptr<>() + auto* ptr = obj.template get_ptr::type>(); + + if (JSON_HEDLEY_LIKELY(ptr != nullptr)) + { + return *ptr; + } + + JSON_THROW(type_error::create(303, "incompatible ReferenceType for get_ref, actual type is " + std::string(obj.type_name()), obj)); + } + + public: + /// @name value access + /// Direct access to the stored value of a JSON value. + /// @{ + + /// @brief get a pointer value (implicit) + /// @sa https://json.nlohmann.me/api/basic_json/get_ptr/ + template::value, int>::type = 0> + auto get_ptr() noexcept -> decltype(std::declval().get_impl_ptr(std::declval())) + { + // delegate the call to get_impl_ptr<>() + return get_impl_ptr(static_cast(nullptr)); + } + + /// @brief get a pointer value (implicit) + /// @sa https://json.nlohmann.me/api/basic_json/get_ptr/ + template < typename PointerType, typename std::enable_if < + std::is_pointer::value&& + std::is_const::type>::value, int >::type = 0 > + constexpr auto get_ptr() const noexcept -> decltype(std::declval().get_impl_ptr(std::declval())) + { + // delegate the call to get_impl_ptr<>() const + return get_impl_ptr(static_cast(nullptr)); + } + + private: + /*! + @brief get a value (explicit) + Explicit type conversion between the JSON value and a compatible value + which is [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible) + and [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). + The value is converted by calling the @ref json_serializer + `from_json()` method. + The function is equivalent to executing + @code {.cpp} + ValueType ret; + JSONSerializer::from_json(*this, ret); + return ret; + @endcode + This overloads is chosen if: + - @a ValueType is not @ref basic_json, + - @ref json_serializer has a `from_json()` method of the form + `void from_json(const basic_json&, ValueType&)`, and + - @ref json_serializer does not have a `from_json()` method of + the form `ValueType from_json(const basic_json&)` + @tparam ValueType the returned value type + @return copy of the JSON value, converted to @a ValueType + @throw what @ref json_serializer `from_json()` method throws + @liveexample{The example below shows several conversions from JSON values + to other types. There a few things to note: (1) Floating-point numbers can + be converted to integers\, (2) A JSON array can be converted to a standard + `std::vector`\, (3) A JSON object can be converted to C++ + associative containers such as `std::unordered_map`.,get__ValueType_const} + @since version 2.1.0 + */ + template < typename ValueType, + detail::enable_if_t < + detail::is_default_constructible::value&& + detail::has_from_json::value, + int > = 0 > + ValueType get_impl(detail::priority_tag<0> /*unused*/) const noexcept(noexcept( + JSONSerializer::from_json(std::declval(), std::declval()))) + { + auto ret = ValueType(); + JSONSerializer::from_json(*this, ret); + return ret; + } + + /*! + @brief get a value (explicit); special case + Explicit type conversion between the JSON value and a compatible value + which is **not** [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible) + and **not** [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). + The value is converted by calling the @ref json_serializer + `from_json()` method. + The function is equivalent to executing + @code {.cpp} + return JSONSerializer::from_json(*this); + @endcode + This overloads is chosen if: + - @a ValueType is not @ref basic_json and + - @ref json_serializer has a `from_json()` method of the form + `ValueType from_json(const basic_json&)` + @note If @ref json_serializer has both overloads of + `from_json()`, this one is chosen. + @tparam ValueType the returned value type + @return copy of the JSON value, converted to @a ValueType + @throw what @ref json_serializer `from_json()` method throws + @since version 2.1.0 + */ + template < typename ValueType, + detail::enable_if_t < + detail::has_non_default_from_json::value, + int > = 0 > + ValueType get_impl(detail::priority_tag<1> /*unused*/) const noexcept(noexcept( + JSONSerializer::from_json(std::declval()))) + { + return JSONSerializer::from_json(*this); + } + + /*! + @brief get special-case overload + This overloads converts the current @ref basic_json in a different + @ref basic_json type + @tparam BasicJsonType == @ref basic_json + @return a copy of *this, converted into @a BasicJsonType + @complexity Depending on the implementation of the called `from_json()` + method. + @since version 3.2.0 + */ + template < typename BasicJsonType, + detail::enable_if_t < + detail::is_basic_json::value, + int > = 0 > + BasicJsonType get_impl(detail::priority_tag<2> /*unused*/) const + { + return *this; + } + + /*! + @brief get special-case overload + This overloads avoids a lot of template boilerplate, it can be seen as the + identity method + @tparam BasicJsonType == @ref basic_json + @return a copy of *this + @complexity Constant. + @since version 2.1.0 + */ + template::value, + int> = 0> + basic_json get_impl(detail::priority_tag<3> /*unused*/) const + { + return *this; + } + + /*! + @brief get a pointer value (explicit) + @copydoc get() + */ + template::value, + int> = 0> + constexpr auto get_impl(detail::priority_tag<4> /*unused*/) const noexcept + -> decltype(std::declval().template get_ptr()) + { + // delegate the call to get_ptr + return get_ptr(); + } + + public: + /*! + @brief get a (pointer) value (explicit) + Performs explicit type conversion between the JSON value and a compatible value if required. + - If the requested type is a pointer to the internally stored JSON value that pointer is returned. + No copies are made. + - If the requested type is the current @ref basic_json, or a different @ref basic_json convertible + from the current @ref basic_json. + - Otherwise the value is converted by calling the @ref json_serializer `from_json()` + method. + @tparam ValueTypeCV the provided value type + @tparam ValueType the returned value type + @return copy of the JSON value, converted to @tparam ValueType if necessary + @throw what @ref json_serializer `from_json()` method throws if conversion is required + @since version 2.1.0 + */ + template < typename ValueTypeCV, typename ValueType = detail::uncvref_t> +#if defined(JSON_HAS_CPP_14) + constexpr +#endif + auto get() const noexcept( + noexcept(std::declval().template get_impl(detail::priority_tag<4> {}))) + -> decltype(std::declval().template get_impl(detail::priority_tag<4> {})) + { + // we cannot static_assert on ValueTypeCV being non-const, because + // there is support for get(), which is why we + // still need the uncvref + static_assert(!std::is_reference::value, + "get() cannot be used with reference types, you might want to use get_ref()"); + return get_impl(detail::priority_tag<4> {}); + } + + /*! + @brief get a pointer value (explicit) + Explicit pointer access to the internally stored JSON value. No copies are + made. + @warning The pointer becomes invalid if the underlying JSON object + changes. + @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref + object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, + @ref number_unsigned_t, or @ref number_float_t. + @return pointer to the internally stored JSON value if the requested + pointer type @a PointerType fits to the JSON value; `nullptr` otherwise + @complexity Constant. + @liveexample{The example below shows how pointers to internal values of a + JSON value can be requested. Note that no type conversions are made and a + `nullptr` is returned if the value and the requested pointer type does not + match.,get__PointerType} + @sa see @ref get_ptr() for explicit pointer-member access + @since version 1.0.0 + */ + template::value, int>::type = 0> + auto get() noexcept -> decltype(std::declval().template get_ptr()) + { + // delegate the call to get_ptr + return get_ptr(); + } + + /// @brief get a value (explicit) + /// @sa https://json.nlohmann.me/api/basic_json/get_to/ + template < typename ValueType, + detail::enable_if_t < + !detail::is_basic_json::value&& + detail::has_from_json::value, + int > = 0 > + ValueType & get_to(ValueType& v) const noexcept(noexcept( + JSONSerializer::from_json(std::declval(), v))) + { + JSONSerializer::from_json(*this, v); + return v; + } + + // specialization to allow calling get_to with a basic_json value + // see https://github.com/nlohmann/json/issues/2175 + template::value, + int> = 0> + ValueType & get_to(ValueType& v) const + { + v = *this; + return v; + } + + template < + typename T, std::size_t N, + typename Array = T (&)[N], // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) + detail::enable_if_t < + detail::has_from_json::value, int > = 0 > + Array get_to(T (&v)[N]) const // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) + noexcept(noexcept(JSONSerializer::from_json( + std::declval(), v))) + { + JSONSerializer::from_json(*this, v); + return v; + } + + /// @brief get a reference value (implicit) + /// @sa https://json.nlohmann.me/api/basic_json/get_ref/ + template::value, int>::type = 0> + ReferenceType get_ref() + { + // delegate call to get_ref_impl + return get_ref_impl(*this); + } + + /// @brief get a reference value (implicit) + /// @sa https://json.nlohmann.me/api/basic_json/get_ref/ + template < typename ReferenceType, typename std::enable_if < + std::is_reference::value&& + std::is_const::type>::value, int >::type = 0 > + ReferenceType get_ref() const + { + // delegate call to get_ref_impl + return get_ref_impl(*this); + } + + /*! + @brief get a value (implicit) + Implicit type conversion between the JSON value and a compatible value. + The call is realized by calling @ref get() const. + @tparam ValueType non-pointer type compatible to the JSON value, for + instance `int` for JSON integer numbers, `bool` for JSON booleans, or + `std::vector` types for JSON arrays. The character type of @ref string_t + as well as an initializer list of this type is excluded to avoid + ambiguities as these types implicitly convert to `std::string`. + @return copy of the JSON value, converted to type @a ValueType + @throw type_error.302 in case passed type @a ValueType is incompatible + to the JSON value type (e.g., the JSON value is of type boolean, but a + string is requested); see example below + @complexity Linear in the size of the JSON value. + @liveexample{The example below shows several conversions from JSON values + to other types. There a few things to note: (1) Floating-point numbers can + be converted to integers\, (2) A JSON array can be converted to a standard + `std::vector`\, (3) A JSON object can be converted to C++ + associative containers such as `std::unordered_map`.,operator__ValueType} + @since version 1.0.0 + */ + template < typename ValueType, typename std::enable_if < + detail::conjunction < + detail::negation>, + detail::negation>, + detail::negation>>, + detail::negation>, + detail::negation>, + detail::negation>>, + +#if defined(JSON_HAS_CPP_17) && (defined(__GNUC__) || (defined(_MSC_VER) && _MSC_VER >= 1910 && _MSC_VER <= 1914)) + detail::negation>, +#endif + detail::is_detected_lazy + >::value, int >::type = 0 > + JSON_EXPLICIT operator ValueType() const + { + // delegate the call to get<>() const + return get(); + } + + /// @brief get a binary value + /// @sa https://json.nlohmann.me/api/basic_json/get_binary/ + binary_t& get_binary() + { + if (!is_binary()) + { + JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(type_name()), *this)); + } + + return *get_ptr(); + } + + /// @brief get a binary value + /// @sa https://json.nlohmann.me/api/basic_json/get_binary/ + const binary_t& get_binary() const + { + if (!is_binary()) + { + JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(type_name()), *this)); + } + + return *get_ptr(); + } + + /// @} + + + //////////////////// + // element access // + //////////////////// + + /// @name element access + /// Access to the JSON value. + /// @{ + + /// @brief access specified array element with bounds checking + /// @sa https://json.nlohmann.me/api/basic_json/at/ + reference at(size_type idx) + { + // at only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + JSON_TRY + { + return set_parent(m_value.array->at(idx)); + } + JSON_CATCH (std::out_of_range&) + { + // create better exception explanation + JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); + } + } + else + { + JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); + } + } + + /// @brief access specified array element with bounds checking + /// @sa https://json.nlohmann.me/api/basic_json/at/ + const_reference at(size_type idx) const + { + // at only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + JSON_TRY + { + return m_value.array->at(idx); + } + JSON_CATCH (std::out_of_range&) + { + // create better exception explanation + JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); + } + } + else + { + JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); + } + } + + /// @brief access specified object element with bounds checking + /// @sa https://json.nlohmann.me/api/basic_json/at/ + reference at(const typename object_t::key_type& key) + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + JSON_TRY + { + return set_parent(m_value.object->at(key)); + } + JSON_CATCH (std::out_of_range&) + { + // create better exception explanation + JSON_THROW(out_of_range::create(403, "key '" + key + "' not found", *this)); + } + } + else + { + JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); + } + } + + /// @brief access specified object element with bounds checking + /// @sa https://json.nlohmann.me/api/basic_json/at/ + const_reference at(const typename object_t::key_type& key) const + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + JSON_TRY + { + return m_value.object->at(key); + } + JSON_CATCH (std::out_of_range&) + { + // create better exception explanation + JSON_THROW(out_of_range::create(403, "key '" + key + "' not found", *this)); + } + } + else + { + JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); + } + } + + /// @brief access specified array element + /// @sa https://json.nlohmann.me/api/basic_json/operator%5B%5D/ + reference operator[](size_type idx) + { + // implicitly convert null value to an empty array + if (is_null()) + { + m_type = value_t::array; + m_value.array = create(); + assert_invariant(); + } + + // operator[] only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + // fill up array with null values if given idx is outside range + if (idx >= m_value.array->size()) + { +#if JSON_DIAGNOSTICS + // remember array size & capacity before resizing + const auto old_size = m_value.array->size(); + const auto old_capacity = m_value.array->capacity(); +#endif + m_value.array->resize(idx + 1); + +#if JSON_DIAGNOSTICS + if (JSON_HEDLEY_UNLIKELY(m_value.array->capacity() != old_capacity)) + { + // capacity has changed: update all parents + set_parents(); + } + else + { + // set parent for values added above + set_parents(begin() + static_cast(old_size), static_cast(idx + 1 - old_size)); + } +#endif + assert_invariant(); + } + + return m_value.array->operator[](idx); + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name()), *this)); + } + + /// @brief access specified array element + /// @sa https://json.nlohmann.me/api/basic_json/operator%5B%5D/ + const_reference operator[](size_type idx) const + { + // const operator[] only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + return m_value.array->operator[](idx); + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name()), *this)); + } + + /// @brief access specified object element + /// @sa https://json.nlohmann.me/api/basic_json/operator%5B%5D/ + reference operator[](const typename object_t::key_type& key) + { + // implicitly convert null value to an empty object + if (is_null()) + { + m_type = value_t::object; + m_value.object = create(); + assert_invariant(); + } + + // operator[] only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + return set_parent(m_value.object->operator[](key)); + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); + } + + /// @brief access specified object element + /// @sa https://json.nlohmann.me/api/basic_json/operator%5B%5D/ + const_reference operator[](const typename object_t::key_type& key) const + { + // const operator[] only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + JSON_ASSERT(m_value.object->find(key) != m_value.object->end()); + return m_value.object->find(key)->second; + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); + } + + /// @brief access specified object element + /// @sa https://json.nlohmann.me/api/basic_json/operator%5B%5D/ + template + JSON_HEDLEY_NON_NULL(2) + reference operator[](T* key) + { + // implicitly convert null to object + if (is_null()) + { + m_type = value_t::object; + m_value = value_t::object; + assert_invariant(); + } + + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + return set_parent(m_value.object->operator[](key)); + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); + } + + /// @brief access specified object element + /// @sa https://json.nlohmann.me/api/basic_json/operator%5B%5D/ + template + JSON_HEDLEY_NON_NULL(2) + const_reference operator[](T* key) const + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + JSON_ASSERT(m_value.object->find(key) != m_value.object->end()); + return m_value.object->find(key)->second; + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); + } + + /// @brief access specified object element with default value + /// @sa https://json.nlohmann.me/api/basic_json/value/ + /// using std::is_convertible in a std::enable_if will fail when using explicit conversions + template < class ValueType, typename std::enable_if < + detail::is_getable::value + && !std::is_same::value, int >::type = 0 > + ValueType value(const typename object_t::key_type& key, const ValueType& default_value) const + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + // if key is found, return value and given default value otherwise + const auto it = find(key); + if (it != end()) + { + return it->template get(); + } + + return default_value; + } + + JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name()), *this)); + } + + /// @brief access specified object element with default value + /// @sa https://json.nlohmann.me/api/basic_json/value/ + /// overload for a default value of type const char* + string_t value(const typename object_t::key_type& key, const char* default_value) const + { + return value(key, string_t(default_value)); + } + + /// @brief access specified object element via JSON Pointer with default value + /// @sa https://json.nlohmann.me/api/basic_json/value/ + template::value, int>::type = 0> + ValueType value(const json_pointer& ptr, const ValueType& default_value) const + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + // if pointer resolves a value, return it or use default value + JSON_TRY + { + return ptr.get_checked(this).template get(); + } + JSON_INTERNAL_CATCH (out_of_range&) + { + return default_value; + } + } + + JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name()), *this)); + } + + /// @brief access specified object element via JSON Pointer with default value + /// @sa https://json.nlohmann.me/api/basic_json/value/ + /// overload for a default value of type const char* + JSON_HEDLEY_NON_NULL(3) + string_t value(const json_pointer& ptr, const char* default_value) const + { + return value(ptr, string_t(default_value)); + } + + /// @brief access the first element + /// @sa https://json.nlohmann.me/api/basic_json/front/ + reference front() + { + return *begin(); + } + + /// @brief access the first element + /// @sa https://json.nlohmann.me/api/basic_json/front/ + const_reference front() const + { + return *cbegin(); + } + + /// @brief access the last element + /// @sa https://json.nlohmann.me/api/basic_json/back/ + reference back() + { + auto tmp = end(); + --tmp; + return *tmp; + } + + /// @brief access the last element + /// @sa https://json.nlohmann.me/api/basic_json/back/ + const_reference back() const + { + auto tmp = cend(); + --tmp; + return *tmp; + } + + /// @brief remove element given an iterator + /// @sa https://json.nlohmann.me/api/basic_json/erase/ + template < class IteratorType, typename std::enable_if < + std::is_same::value || + std::is_same::value, int >::type + = 0 > + IteratorType erase(IteratorType pos) + { + // make sure iterator fits the current value + if (JSON_HEDLEY_UNLIKELY(this != pos.m_object)) + { + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); + } + + IteratorType result = end(); + + switch (m_type) + { + case value_t::boolean: + case value_t::number_float: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::string: + case value_t::binary: + { + if (JSON_HEDLEY_UNLIKELY(!pos.m_it.primitive_iterator.is_begin())) + { + JSON_THROW(invalid_iterator::create(205, "iterator out of range", *this)); + } + + if (is_string()) + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, m_value.string); + std::allocator_traits::deallocate(alloc, m_value.string, 1); + m_value.string = nullptr; + } + else if (is_binary()) + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, m_value.binary); + std::allocator_traits::deallocate(alloc, m_value.binary, 1); + m_value.binary = nullptr; + } + + m_type = value_t::null; + assert_invariant(); + break; + } + + case value_t::object: + { + result.m_it.object_iterator = m_value.object->erase(pos.m_it.object_iterator); + break; + } + + case value_t::array: + { + result.m_it.array_iterator = m_value.array->erase(pos.m_it.array_iterator); + break; + } + + case value_t::null: + case value_t::discarded: + default: + JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); + } + + return result; + } + + /// @brief remove elements given an iterator range + /// @sa https://json.nlohmann.me/api/basic_json/erase/ + template < class IteratorType, typename std::enable_if < + std::is_same::value || + std::is_same::value, int >::type + = 0 > + IteratorType erase(IteratorType first, IteratorType last) + { + // make sure iterator fits the current value + if (JSON_HEDLEY_UNLIKELY(this != first.m_object || this != last.m_object)) + { + JSON_THROW(invalid_iterator::create(203, "iterators do not fit current value", *this)); + } + + IteratorType result = end(); + + switch (m_type) + { + case value_t::boolean: + case value_t::number_float: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::string: + case value_t::binary: + { + if (JSON_HEDLEY_LIKELY(!first.m_it.primitive_iterator.is_begin() + || !last.m_it.primitive_iterator.is_end())) + { + JSON_THROW(invalid_iterator::create(204, "iterators out of range", *this)); + } + + if (is_string()) + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, m_value.string); + std::allocator_traits::deallocate(alloc, m_value.string, 1); + m_value.string = nullptr; + } + else if (is_binary()) + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, m_value.binary); + std::allocator_traits::deallocate(alloc, m_value.binary, 1); + m_value.binary = nullptr; + } + + m_type = value_t::null; + assert_invariant(); + break; + } + + case value_t::object: + { + result.m_it.object_iterator = m_value.object->erase(first.m_it.object_iterator, + last.m_it.object_iterator); + break; + } + + case value_t::array: + { + result.m_it.array_iterator = m_value.array->erase(first.m_it.array_iterator, + last.m_it.array_iterator); + break; + } + + case value_t::null: + case value_t::discarded: + default: + JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); + } + + return result; + } + + /// @brief remove element from a JSON object given a key + /// @sa https://json.nlohmann.me/api/basic_json/erase/ + size_type erase(const typename object_t::key_type& key) + { + // this erase only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + return m_value.object->erase(key); + } + + JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); + } + + /// @brief remove element from a JSON array given an index + /// @sa https://json.nlohmann.me/api/basic_json/erase/ + void erase(const size_type idx) + { + // this erase only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + if (JSON_HEDLEY_UNLIKELY(idx >= size())) + { + JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); + } + + m_value.array->erase(m_value.array->begin() + static_cast(idx)); + } + else + { + JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); + } + } + + /// @} + + + //////////// + // lookup // + //////////// + + /// @name lookup + /// @{ + + /// @brief find an element in a JSON object + /// @sa https://json.nlohmann.me/api/basic_json/find/ + template + iterator find(KeyT&& key) + { + auto result = end(); + + if (is_object()) + { + result.m_it.object_iterator = m_value.object->find(std::forward(key)); + } + + return result; + } + + /// @brief find an element in a JSON object + /// @sa https://json.nlohmann.me/api/basic_json/find/ + template + const_iterator find(KeyT&& key) const + { + auto result = cend(); + + if (is_object()) + { + result.m_it.object_iterator = m_value.object->find(std::forward(key)); + } + + return result; + } + + /// @brief returns the number of occurrences of a key in a JSON object + /// @sa https://json.nlohmann.me/api/basic_json/count/ + template + size_type count(KeyT&& key) const + { + // return 0 for all nonobject types + return is_object() ? m_value.object->count(std::forward(key)) : 0; + } + + /// @brief check the existence of an element in a JSON object + /// @sa https://json.nlohmann.me/api/basic_json/contains/ + template < typename KeyT, typename std::enable_if < + !std::is_same::type, json_pointer>::value, int >::type = 0 > + bool contains(KeyT && key) const + { + return is_object() && m_value.object->find(std::forward(key)) != m_value.object->end(); + } + + /// @brief check the existence of an element in a JSON object given a JSON pointer + /// @sa https://json.nlohmann.me/api/basic_json/contains/ + bool contains(const json_pointer& ptr) const + { + return ptr.contains(this); + } + + /// @} + + + /////////////// + // iterators // + /////////////// + + /// @name iterators + /// @{ + + /// @brief returns an iterator to the first element + /// @sa https://json.nlohmann.me/api/basic_json/begin/ + iterator begin() noexcept + { + iterator result(this); + result.set_begin(); + return result; + } + + /// @brief returns an iterator to the first element + /// @sa https://json.nlohmann.me/api/basic_json/begin/ + const_iterator begin() const noexcept + { + return cbegin(); + } + + /// @brief returns a const iterator to the first element + /// @sa https://json.nlohmann.me/api/basic_json/cbegin/ + const_iterator cbegin() const noexcept + { + const_iterator result(this); + result.set_begin(); + return result; + } + + /// @brief returns an iterator to one past the last element + /// @sa https://json.nlohmann.me/api/basic_json/end/ + iterator end() noexcept + { + iterator result(this); + result.set_end(); + return result; + } + + /// @brief returns an iterator to one past the last element + /// @sa https://json.nlohmann.me/api/basic_json/end/ + const_iterator end() const noexcept + { + return cend(); + } + + /// @brief returns an iterator to one past the last element + /// @sa https://json.nlohmann.me/api/basic_json/cend/ + const_iterator cend() const noexcept + { + const_iterator result(this); + result.set_end(); + return result; + } + + /// @brief returns an iterator to the reverse-beginning + /// @sa https://json.nlohmann.me/api/basic_json/rbegin/ + reverse_iterator rbegin() noexcept + { + return reverse_iterator(end()); + } + + /// @brief returns an iterator to the reverse-beginning + /// @sa https://json.nlohmann.me/api/basic_json/rbegin/ + const_reverse_iterator rbegin() const noexcept + { + return crbegin(); + } + + /// @brief returns an iterator to the reverse-end + /// @sa https://json.nlohmann.me/api/basic_json/rend/ + reverse_iterator rend() noexcept + { + return reverse_iterator(begin()); + } + + /// @brief returns an iterator to the reverse-end + /// @sa https://json.nlohmann.me/api/basic_json/rend/ + const_reverse_iterator rend() const noexcept + { + return crend(); + } + + /// @brief returns a const reverse iterator to the last element + /// @sa https://json.nlohmann.me/api/basic_json/crbegin/ + const_reverse_iterator crbegin() const noexcept + { + return const_reverse_iterator(cend()); + } + + /// @brief returns a const reverse iterator to one before the first + /// @sa https://json.nlohmann.me/api/basic_json/crend/ + const_reverse_iterator crend() const noexcept + { + return const_reverse_iterator(cbegin()); + } + + public: + /// @brief wrapper to access iterator member functions in range-based for + /// @sa https://json.nlohmann.me/api/basic_json/items/ + /// @deprecated This function is deprecated since 3.1.0 and will be removed in + /// version 4.0.0 of the library. Please use @ref items() instead; + /// that is, replace `json::iterator_wrapper(j)` with `j.items()`. + JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items()) + static iteration_proxy iterator_wrapper(reference ref) noexcept + { + return ref.items(); + } + + /// @brief wrapper to access iterator member functions in range-based for + /// @sa https://json.nlohmann.me/api/basic_json/items/ + /// @deprecated This function is deprecated since 3.1.0 and will be removed in + /// version 4.0.0 of the library. Please use @ref items() instead; + /// that is, replace `json::iterator_wrapper(j)` with `j.items()`. + JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items()) + static iteration_proxy iterator_wrapper(const_reference ref) noexcept + { + return ref.items(); + } + + /// @brief helper to access iterator member functions in range-based for + /// @sa https://json.nlohmann.me/api/basic_json/items/ + iteration_proxy items() noexcept + { + return iteration_proxy(*this); + } + + /// @brief helper to access iterator member functions in range-based for + /// @sa https://json.nlohmann.me/api/basic_json/items/ + iteration_proxy items() const noexcept + { + return iteration_proxy(*this); + } + + /// @} + + + ////////////// + // capacity // + ////////////// + + /// @name capacity + /// @{ + + /// @brief checks whether the container is empty. + /// @sa https://json.nlohmann.me/api/basic_json/empty/ + bool empty() const noexcept + { + switch (m_type) + { + case value_t::null: + { + // null values are empty + return true; + } + + case value_t::array: + { + // delegate call to array_t::empty() + return m_value.array->empty(); + } + + case value_t::object: + { + // delegate call to object_t::empty() + return m_value.object->empty(); + } + + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + // all other types are nonempty + return false; + } + } + } + + /// @brief returns the number of elements + /// @sa https://json.nlohmann.me/api/basic_json/size/ + size_type size() const noexcept + { + switch (m_type) + { + case value_t::null: + { + // null values are empty + return 0; + } + + case value_t::array: + { + // delegate call to array_t::size() + return m_value.array->size(); + } + + case value_t::object: + { + // delegate call to object_t::size() + return m_value.object->size(); + } + + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + // all other types have size 1 + return 1; + } + } + } + + /// @brief returns the maximum possible number of elements + /// @sa https://json.nlohmann.me/api/basic_json/max_size/ + size_type max_size() const noexcept + { + switch (m_type) + { + case value_t::array: + { + // delegate call to array_t::max_size() + return m_value.array->max_size(); } - return last_token_type; - } + case value_t::object: + { + // delegate call to object_t::max_size() + return m_value.object->max_size(); + } - /*! - @brief append data from the stream to the line buffer + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + // all other types have max_size() == size() + return size(); + } + } + } - This function is called by the scan() function when the end of the - buffer (`m_limit`) is reached and the `m_cursor` pointer cannot be - incremented without leaving the limits of the line buffer. Note re2c - decides when to call this function. + /// @} - If the lexer reads from contiguous storage, there is no trailing null - byte. Therefore, this function must make sure to add these padding - null bytes. - If the lexer reads from an input stream, this function reads the next - line of the input. + /////////////// + // modifiers // + /////////////// - @pre - p p p p p p u u u u u x . . . . . . - ^ ^ ^ ^ - m_content m_start | m_limit - m_cursor + /// @name modifiers + /// @{ - @post - u u u u u x x x x x x x . . . . . . - ^ ^ ^ - | m_cursor m_limit - m_start - m_content - */ - void fill_line_buffer(size_t n = 0) + /// @brief clears the contents + /// @sa https://json.nlohmann.me/api/basic_json/clear/ + void clear() noexcept + { + switch (m_type) { - // if line buffer is used, m_content points to its data - assert(m_line_buffer.empty() - or m_content == reinterpret_cast(m_line_buffer.data())); + case value_t::number_integer: + { + m_value.number_integer = 0; + break; + } - // if line buffer is used, m_limit is set past the end of its data - assert(m_line_buffer.empty() - or m_limit == m_content + m_line_buffer.size()); + case value_t::number_unsigned: + { + m_value.number_unsigned = 0; + break; + } - // pointer relationships - assert(m_content <= m_start); - assert(m_start <= m_cursor); - assert(m_cursor <= m_limit); - assert(m_marker == nullptr or m_marker <= m_limit); + case value_t::number_float: + { + m_value.number_float = 0.0; + break; + } - // number of processed characters (p) - const auto num_processed_chars = static_cast(m_start - m_content); - // offset for m_marker wrt. to m_start - const auto offset_marker = (m_marker == nullptr) ? 0 : m_marker - m_start; - // number of unprocessed characters (u) - const auto offset_cursor = m_cursor - m_start; + case value_t::boolean: + { + m_value.boolean = false; + break; + } - // no stream is used or end of file is reached - if (m_stream == nullptr or m_stream->eof()) + case value_t::string: { - // m_start may or may not be pointing into m_line_buffer at - // this point. We trust the standard library to do the right - // thing. See http://stackoverflow.com/q/28142011/266378 - m_line_buffer.assign(m_start, m_limit); + m_value.string->clear(); + break; + } - // append n characters to make sure that there is sufficient - // space between m_cursor and m_limit - m_line_buffer.append(1, '\x00'); - if (n > 0) - { - m_line_buffer.append(n - 1, '\x01'); - } + case value_t::binary: + { + m_value.binary->clear(); + break; } - else + + case value_t::array: { - // delete processed characters from line buffer - m_line_buffer.erase(0, num_processed_chars); - // read next line from input stream - m_line_buffer_tmp.clear(); - std::getline(*m_stream, m_line_buffer_tmp, '\n'); + m_value.array->clear(); + break; + } - // add line with newline symbol to the line buffer - m_line_buffer += m_line_buffer_tmp; - m_line_buffer.push_back('\n'); + case value_t::object: + { + m_value.object->clear(); + break; } - // set pointers - m_content = reinterpret_cast(m_line_buffer.data()); - assert(m_content != nullptr); - m_start = m_content; - m_marker = m_start + offset_marker; - m_cursor = m_start + offset_cursor; - m_limit = m_start + m_line_buffer.size(); + case value_t::null: + case value_t::discarded: + default: + break; } + } - /// return string representation of last read token - string_t get_token_string() const + /// @brief add an object to an array + /// @sa https://json.nlohmann.me/api/basic_json/push_back/ + void push_back(basic_json&& val) + { + // push_back only works for null objects or arrays + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) { - assert(m_start != nullptr); - return string_t(reinterpret_cast(m_start), - static_cast(m_cursor - m_start)); + JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); } - /*! - @brief return string value for string tokens - - The function iterates the characters between the opening and closing - quotes of the string value. The complete string is the range - [m_start,m_cursor). Consequently, we iterate from m_start+1 to - m_cursor-1. - - We differentiate two cases: - - 1. Escaped characters. In this case, a new character is constructed - according to the nature of the escape. Some escapes create new - characters (e.g., `"\\n"` is replaced by `"\n"`), some are copied - as is (e.g., `"\\\\"`). Furthermore, Unicode escapes of the shape - `"\\uxxxx"` need special care. In this case, to_unicode takes care - of the construction of the values. - 2. Unescaped characters are copied as is. - - @pre `m_cursor - m_start >= 2`, meaning the length of the last token - is at least 2 bytes which is trivially true for any string (which - consists of at least two quotes). - - " c1 c2 c3 ... " - ^ ^ - m_start m_cursor - - @complexity Linear in the length of the string.\n - - Lemma: The loop body will always terminate.\n - - Proof (by contradiction): Assume the loop body does not terminate. As - the loop body does not contain another loop, one of the called - functions must never return. The called functions are `std::strtoul` - and to_unicode. Neither function can loop forever, so the loop body - will never loop forever which contradicts the assumption that the loop - body does not terminate, q.e.d.\n - - Lemma: The loop condition for the for loop is eventually false.\n - - Proof (by contradiction): Assume the loop does not terminate. Due to - the above lemma, this can only be due to a tautological loop - condition; that is, the loop condition i < m_cursor - 1 must always be - true. Let x be the change of i for any loop iteration. Then - m_start + 1 + x < m_cursor - 1 must hold to loop indefinitely. This - can be rephrased to m_cursor - m_start - 2 > x. With the - precondition, we x <= 0, meaning that the loop condition holds - indefinitely if i is always decreased. However, observe that the value - of i is strictly increasing with each iteration, as it is incremented - by 1 in the iteration expression and never decremented inside the loop - body. Hence, the loop condition will eventually be false which - contradicts the assumption that the loop condition is a tautology, - q.e.d. - - @return string value of current token without opening and closing - quotes - @throw std::out_of_range if to_unicode fails - */ - string_t get_string() const + // transform null object into an array + if (is_null()) { - assert(m_cursor - m_start >= 2); - - string_t result; - result.reserve(static_cast(m_cursor - m_start - 2)); - - // iterate the result between the quotes - for (const lexer_char_t* i = m_start + 1; i < m_cursor - 1; ++i) - { - // find next escape character - auto e = std::find(i, m_cursor - 1, '\\'); - if (e != i) - { - // see https://github.com/nlohmann/json/issues/365#issuecomment-262874705 - for (auto k = i; k < e; k++) - { - result.push_back(static_cast(*k)); - } - i = e - 1; // -1 because of ++i - } - else - { - // processing escaped character - // read next character - ++i; - - switch (*i) - { - // the default escapes - case 't': - { - result += "\t"; - break; - } - case 'b': - { - result += "\b"; - break; - } - case 'f': - { - result += "\f"; - break; - } - case 'n': - { - result += "\n"; - break; - } - case 'r': - { - result += "\r"; - break; - } - case '\\': - { - result += "\\"; - break; - } - case '/': - { - result += "/"; - break; - } - case '"': - { - result += "\""; - break; - } - - // unicode - case 'u': - { - // get code xxxx from uxxxx - auto codepoint = std::strtoul(std::string(reinterpret_cast(i + 1), - 4).c_str(), nullptr, 16); + m_type = value_t::array; + m_value = value_t::array; + assert_invariant(); + } - // check if codepoint is a high surrogate - if (codepoint >= 0xD800 and codepoint <= 0xDBFF) - { - // make sure there is a subsequent unicode - if ((i + 6 >= m_limit) or * (i + 5) != '\\' or * (i + 6) != 'u') - { - JSON_THROW(std::invalid_argument("missing low surrogate")); - } + // add element to array (move semantics) + const auto old_capacity = m_value.array->capacity(); + m_value.array->push_back(std::move(val)); + set_parent(m_value.array->back(), old_capacity); + // if val is moved from, basic_json move constructor marks it null, so we do not call the destructor + } - // get code yyyy from uxxxx\uyyyy - auto codepoint2 = std::strtoul(std::string(reinterpret_cast - (i + 7), 4).c_str(), nullptr, 16); - result += to_unicode(codepoint, codepoint2); - // skip the next 10 characters (xxxx\uyyyy) - i += 10; - } - else if (codepoint >= 0xDC00 and codepoint <= 0xDFFF) - { - // we found a lone low surrogate - JSON_THROW(std::invalid_argument("missing high surrogate")); - } - else - { - // add unicode character(s) - result += to_unicode(codepoint); - // skip the next four characters (xxxx) - i += 4; - } - break; - } - } - } - } + /// @brief add an object to an array + /// @sa https://json.nlohmann.me/api/basic_json/operator+=/ + reference operator+=(basic_json&& val) + { + push_back(std::move(val)); + return *this; + } - return result; + /// @brief add an object to an array + /// @sa https://json.nlohmann.me/api/basic_json/push_back/ + void push_back(const basic_json& val) + { + // push_back only works for null objects or arrays + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) + { + JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); } + // transform null object into an array + if (is_null()) + { + m_type = value_t::array; + m_value = value_t::array; + assert_invariant(); + } - /*! - @brief parse string into a built-in arithmetic type as if the current - locale is POSIX. + // add element to array + const auto old_capacity = m_value.array->capacity(); + m_value.array->push_back(val); + set_parent(m_value.array->back(), old_capacity); + } - @note in floating-point case strtod may parse past the token's end - - this is not an error + /// @brief add an object to an array + /// @sa https://json.nlohmann.me/api/basic_json/operator+=/ + reference operator+=(const basic_json& val) + { + push_back(val); + return *this; + } - @note any leading blanks are not handled - */ - struct strtonum + /// @brief add an object to an object + /// @sa https://json.nlohmann.me/api/basic_json/push_back/ + void push_back(const typename object_t::value_type& val) + { + // push_back only works for null objects or objects + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_object()))) { - public: - strtonum(const char* start, const char* end) - : m_start(start), m_end(end) - {} - - /*! - @return true iff parsed successfully as number of type T - - @param[in,out] val shall contain parsed value, or undefined value - if could not parse - */ - template::value>::type> - bool to(T& val) const - { - return parse(val, std::is_integral()); - } + JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); + } - private: - const char* const m_start = nullptr; - const char* const m_end = nullptr; + // transform null object into an object + if (is_null()) + { + m_type = value_t::object; + m_value = value_t::object; + assert_invariant(); + } - // floating-point conversion + // add element to object + auto res = m_value.object->insert(val); + set_parent(res.first->second); + } - // overloaded wrappers for strtod/strtof/strtold - // that will be called from parse - static void strtof(float& f, const char* str, char** endptr) - { - f = std::strtof(str, endptr); - } + /// @brief add an object to an object + /// @sa https://json.nlohmann.me/api/basic_json/operator+=/ + reference operator+=(const typename object_t::value_type& val) + { + push_back(val); + return *this; + } - static void strtof(double& f, const char* str, char** endptr) - { - f = std::strtod(str, endptr); - } + /// @brief add an object to an object + /// @sa https://json.nlohmann.me/api/basic_json/push_back/ + void push_back(initializer_list_t init) + { + if (is_object() && init.size() == 2 && (*init.begin())->is_string()) + { + basic_json&& key = init.begin()->moved_or_copied(); + push_back(typename object_t::value_type( + std::move(key.get_ref()), (init.begin() + 1)->moved_or_copied())); + } + else + { + push_back(basic_json(init)); + } + } - static void strtof(long double& f, const char* str, char** endptr) - { - f = std::strtold(str, endptr); - } + /// @brief add an object to an object + /// @sa https://json.nlohmann.me/api/basic_json/operator+=/ + reference operator+=(initializer_list_t init) + { + push_back(init); + return *this; + } - template - bool parse(T& value, /*is_integral=*/std::false_type) const - { - // replace decimal separator with locale-specific version, - // when necessary; data will point to either the original - // string, or buf, or tempstr containing the fixed string. - std::string tempstr; - std::array buf; - const size_t len = static_cast(m_end - m_start); + /// @brief add an object to an array + /// @sa https://json.nlohmann.me/api/basic_json/emplace_back/ + template + reference emplace_back(Args&& ... args) + { + // emplace_back only works for null objects or arrays + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) + { + JSON_THROW(type_error::create(311, "cannot use emplace_back() with " + std::string(type_name()), *this)); + } - // lexer will reject empty numbers - assert(len > 0); + // transform null object into an array + if (is_null()) + { + m_type = value_t::array; + m_value = value_t::array; + assert_invariant(); + } - // since dealing with strtod family of functions, we're - // getting the decimal point char from the C locale facilities - // instead of C++'s numpunct facet of the current std::locale - const auto loc = localeconv(); - assert(loc != nullptr); - const char decimal_point_char = (loc->decimal_point == nullptr) ? '.' : loc->decimal_point[0]; + // add element to array (perfect forwarding) + const auto old_capacity = m_value.array->capacity(); + m_value.array->emplace_back(std::forward(args)...); + return set_parent(m_value.array->back(), old_capacity); + } - const char* data = m_start; + /// @brief add an object to an object if key does not exist + /// @sa https://json.nlohmann.me/api/basic_json/emplace/ + template + std::pair emplace(Args&& ... args) + { + // emplace only works for null objects or arrays + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_object()))) + { + JSON_THROW(type_error::create(311, "cannot use emplace() with " + std::string(type_name()), *this)); + } - if (decimal_point_char != '.') - { - const size_t ds_pos = static_cast(std::find(m_start, m_end, '.') - m_start); + // transform null object into an object + if (is_null()) + { + m_type = value_t::object; + m_value = value_t::object; + assert_invariant(); + } - if (ds_pos != len) - { - // copy the data into the local buffer or tempstr, if - // buffer is too small; replace decimal separator, and - // update data to point to the modified bytes - if ((len + 1) < buf.size()) - { - std::copy(m_start, m_end, buf.begin()); - buf[len] = 0; - buf[ds_pos] = decimal_point_char; - data = buf.data(); - } - else - { - tempstr.assign(m_start, m_end); - tempstr[ds_pos] = decimal_point_char; - data = tempstr.c_str(); - } - } - } + // add element to array (perfect forwarding) + auto res = m_value.object->emplace(std::forward(args)...); + set_parent(res.first->second); - char* endptr = nullptr; - value = 0; - // this calls appropriate overload depending on T - strtof(value, data, &endptr); + // create result iterator and set iterator to the result of emplace + auto it = begin(); + it.m_it.object_iterator = res.first; - // parsing was successful iff strtof parsed exactly the number - // of characters determined by the lexer (len) - const bool ok = (endptr == (data + len)); + // return pair of iterator and boolean + return {it, res.second}; + } - if (ok and (value == static_cast(0.0)) and (*data == '-')) - { - // some implementations forget to negate the zero - value = -0.0; - } + /// Helper for insertion of an iterator + /// @note: This uses std::distance to support GCC 4.8, + /// see https://github.com/nlohmann/json/pull/1257 + template + iterator insert_iterator(const_iterator pos, Args&& ... args) + { + iterator result(this); + JSON_ASSERT(m_value.array != nullptr); - return ok; - } + auto insert_pos = std::distance(m_value.array->begin(), pos.m_it.array_iterator); + m_value.array->insert(pos.m_it.array_iterator, std::forward(args)...); + result.m_it.array_iterator = m_value.array->begin() + insert_pos; - // integral conversion + // This could have been written as: + // result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val); + // but the return value of insert is missing in GCC 4.8, so it is written this way instead. - signed long long parse_integral(char** endptr, /*is_signed*/std::true_type) const - { - return std::strtoll(m_start, endptr, 10); - } + set_parents(); + return result; + } - unsigned long long parse_integral(char** endptr, /*is_signed*/std::false_type) const + /// @brief inserts element into array + /// @sa https://json.nlohmann.me/api/basic_json/insert/ + iterator insert(const_iterator pos, const basic_json& val) + { + // insert only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + // check if iterator pos fits to this JSON value + if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) { - return std::strtoull(m_start, endptr, 10); + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); } - template - bool parse(T& value, /*is_integral=*/std::true_type) const - { - char* endptr = nullptr; - errno = 0; // these are thread-local - const auto x = parse_integral(&endptr, std::is_signed()); + // insert to array and return iterator + return insert_iterator(pos, val); + } - // called right overload? - static_assert(std::is_signed() == std::is_signed(), ""); + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } - value = static_cast(x); + /// @brief inserts element into array + /// @sa https://json.nlohmann.me/api/basic_json/insert/ + iterator insert(const_iterator pos, basic_json&& val) + { + return insert(pos, val); + } - return (x == static_cast(value)) // x fits into destination T - and (x < 0) == (value < 0) // preserved sign - //and ((x != 0) or is_integral()) // strto[u]ll did nto fail - and (errno == 0) // strto[u]ll did not overflow - and (m_start < m_end) // token was not empty - and (endptr == m_end); // parsed entire token exactly + /// @brief inserts copies of element into array + /// @sa https://json.nlohmann.me/api/basic_json/insert/ + iterator insert(const_iterator pos, size_type cnt, const basic_json& val) + { + // insert only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + // check if iterator pos fits to this JSON value + if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) + { + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); } - }; - - /*! - @brief return number value for number tokens - This function translates the last token into the most appropriate - number type (either integer, unsigned integer or floating point), - which is passed back to the caller via the result parameter. - - integral numbers that don't fit into the the range of the respective - type are parsed as number_float_t + // insert to array and return iterator + return insert_iterator(pos, cnt, val); + } - floating-point values do not satisfy std::isfinite predicate - are converted to value_t::null + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } - throws if the entire string [m_start .. m_cursor) cannot be - interpreted as a number + /// @brief inserts range of elements into array + /// @sa https://json.nlohmann.me/api/basic_json/insert/ + iterator insert(const_iterator pos, const_iterator first, const_iterator last) + { + // insert only works for arrays + if (JSON_HEDLEY_UNLIKELY(!is_array())) + { + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } - @param[out] result @ref basic_json object to receive the number. - @param[in] token the type of the number token - */ - bool get_number(basic_json& result, const token_type token) const + // check if iterator pos fits to this JSON value + if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) { - assert(m_start != nullptr); - assert(m_start < m_cursor); - assert((token == token_type::value_unsigned) or - (token == token_type::value_integer) or - (token == token_type::value_float)); + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); + } - strtonum num_converter(reinterpret_cast(m_start), - reinterpret_cast(m_cursor)); + // check if range iterators belong to the same JSON object + if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) + { + JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); + } - switch (token) - { - case lexer::token_type::value_unsigned: - { - number_unsigned_t val; - if (num_converter.to(val)) - { - // parsing successful - result.m_type = value_t::number_unsigned; - result.m_value = val; - return true; - } - break; - } + if (JSON_HEDLEY_UNLIKELY(first.m_object == this)) + { + JSON_THROW(invalid_iterator::create(211, "passed iterators may not belong to container", *this)); + } - case lexer::token_type::value_integer: - { - number_integer_t val; - if (num_converter.to(val)) - { - // parsing successful - result.m_type = value_t::number_integer; - result.m_value = val; - return true; - } - break; - } + // insert to array and return iterator + return insert_iterator(pos, first.m_it.array_iterator, last.m_it.array_iterator); + } - default: - { - break; - } - } + /// @brief inserts elements from initializer list into array + /// @sa https://json.nlohmann.me/api/basic_json/insert/ + iterator insert(const_iterator pos, initializer_list_t ilist) + { + // insert only works for arrays + if (JSON_HEDLEY_UNLIKELY(!is_array())) + { + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } - // parse float (either explicitly or because a previous conversion - // failed) - number_float_t val; - if (num_converter.to(val)) - { - // parsing successful - result.m_type = value_t::number_float; - result.m_value = val; + // check if iterator pos fits to this JSON value + if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) + { + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); + } - // replace infinity and NAN by null - if (not std::isfinite(result.m_value.number_float)) - { - result.m_type = value_t::null; - result.m_value = basic_json::json_value(); - } + // insert to array and return iterator + return insert_iterator(pos, ilist.begin(), ilist.end()); + } - return true; - } + /// @brief inserts range of elements into object + /// @sa https://json.nlohmann.me/api/basic_json/insert/ + void insert(const_iterator first, const_iterator last) + { + // insert only works for objects + if (JSON_HEDLEY_UNLIKELY(!is_object())) + { + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } - // couldn't parse number in any format - return false; + // check if range iterators belong to the same JSON object + if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) + { + JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); } - private: - /// optional input stream - std::istream* m_stream = nullptr; - /// line buffer buffer for m_stream - string_t m_line_buffer {}; - /// used for filling m_line_buffer - string_t m_line_buffer_tmp {}; - /// the buffer pointer - const lexer_char_t* m_content = nullptr; - /// pointer to the beginning of the current symbol - const lexer_char_t* m_start = nullptr; - /// pointer for backtracking information - const lexer_char_t* m_marker = nullptr; - /// pointer to the current symbol - const lexer_char_t* m_cursor = nullptr; - /// pointer to the end of the buffer - const lexer_char_t* m_limit = nullptr; - /// the last token type - token_type last_token_type = token_type::end_of_input; - }; + // passed iterators must belong to objects + if (JSON_HEDLEY_UNLIKELY(!first.m_object->is_object())) + { + JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects", *this)); + } - /*! - @brief syntax analysis + m_value.object->insert(first.m_it.object_iterator, last.m_it.object_iterator); + } - This class implements a recursive decent parser. - */ - class parser + /// @brief updates a JSON object from another object, overwriting existing keys + /// @sa https://json.nlohmann.me/api/basic_json/update/ + void update(const_reference j, bool merge_objects = false) { - public: - /// a parser reading from a string literal - parser(const char* buff, const parser_callback_t cb = nullptr) - : callback(cb), - m_lexer(reinterpret_cast(buff), std::strlen(buff)) - {} - - /// a parser reading from an input stream - parser(std::istream& is, const parser_callback_t cb = nullptr) - : callback(cb), m_lexer(is) - {} - - /// a parser reading from an iterator range with contiguous storage - template::iterator_category, std::random_access_iterator_tag>::value - , int>::type - = 0> - parser(IteratorType first, IteratorType last, const parser_callback_t cb = nullptr) - : callback(cb), - m_lexer(reinterpret_cast(&(*first)), - static_cast(std::distance(first, last))) - {} + update(j.begin(), j.end(), merge_objects); + } - /// public parser interface - basic_json parse() + /// @brief updates a JSON object from another object, overwriting existing keys + /// @sa https://json.nlohmann.me/api/basic_json/update/ + void update(const_iterator first, const_iterator last, bool merge_objects = false) + { + // implicitly convert null value to an empty object + if (is_null()) { - // read first token - get_token(); - - basic_json result = parse_internal(true); - result.assert_invariant(); + m_type = value_t::object; + m_value.object = create(); + assert_invariant(); + } - expect(lexer::token_type::end_of_input); + if (JSON_HEDLEY_UNLIKELY(!is_object())) + { + JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name()), *this)); + } - // return parser result and replace it with null in case the - // top-level value was discarded by the callback function - return result.is_discarded() ? basic_json() : std::move(result); + // check if range iterators belong to the same JSON object + if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) + { + JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); } - private: - /// the actual parser - basic_json parse_internal(bool keep) + // passed iterators must belong to objects + if (JSON_HEDLEY_UNLIKELY(!first.m_object->is_object())) { - auto result = basic_json(value_t::discarded); + JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(first.m_object->type_name()), *first.m_object)); + } - switch (last_token) + for (auto it = first; it != last; ++it) + { + if (merge_objects && it.value().is_object()) { - case lexer::token_type::begin_object: + auto it2 = m_value.object->find(it.key()); + if (it2 != m_value.object->end()) { - if (keep and (not callback - or ((keep = callback(depth++, parse_event_t::object_start, result)) != 0))) - { - // explicitly set result to object to cope with {} - result.m_type = value_t::object; - result.m_value = value_t::object; - } - - // read next token - get_token(); - - // closing } -> we are done - if (last_token == lexer::token_type::end_object) - { - get_token(); - if (keep and callback and not callback(--depth, parse_event_t::object_end, result)) - { - result = basic_json(value_t::discarded); - } - return result; - } + it2->second.update(it.value(), true); + continue; + } + } + m_value.object->operator[](it.key()) = it.value(); +#if JSON_DIAGNOSTICS + m_value.object->operator[](it.key()).m_parent = this; +#endif + } + } - // no comma is expected here - unexpect(lexer::token_type::value_separator); + /// @brief exchanges the values + /// @sa https://json.nlohmann.me/api/basic_json/swap/ + void swap(reference other) noexcept ( + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value&& + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value + ) + { + std::swap(m_type, other.m_type); + std::swap(m_value, other.m_value); - // otherwise: parse key-value pairs - do - { - // ugly, but could be fixed with loop reorganization - if (last_token == lexer::token_type::value_separator) - { - get_token(); - } + set_parents(); + other.set_parents(); + assert_invariant(); + } - // store key - expect(lexer::token_type::value_string); - const auto key = m_lexer.get_string(); + /// @brief exchanges the values + /// @sa https://json.nlohmann.me/api/basic_json/swap/ + friend void swap(reference left, reference right) noexcept ( + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value&& + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value + ) + { + left.swap(right); + } - bool keep_tag = false; - if (keep) - { - if (callback) - { - basic_json k(key); - keep_tag = callback(depth, parse_event_t::key, k); - } - else - { - keep_tag = true; - } - } + /// @brief exchanges the values + /// @sa https://json.nlohmann.me/api/basic_json/swap/ + void swap(array_t& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + std::swap(*(m_value.array), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } - // parse separator (:) - get_token(); - expect(lexer::token_type::name_separator); + /// @brief exchanges the values + /// @sa https://json.nlohmann.me/api/basic_json/swap/ + void swap(object_t& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + std::swap(*(m_value.object), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } - // parse and add value - get_token(); - auto value = parse_internal(keep); - if (keep and keep_tag and not value.is_discarded()) - { - result[key] = std::move(value); - } - } - while (last_token == lexer::token_type::value_separator); + /// @brief exchanges the values + /// @sa https://json.nlohmann.me/api/basic_json/swap/ + void swap(string_t& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for strings + if (JSON_HEDLEY_LIKELY(is_string())) + { + std::swap(*(m_value.string), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } - // closing } - expect(lexer::token_type::end_object); - get_token(); - if (keep and callback and not callback(--depth, parse_event_t::object_end, result)) - { - result = basic_json(value_t::discarded); - } + /// @brief exchanges the values + /// @sa https://json.nlohmann.me/api/basic_json/swap/ + void swap(binary_t& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for strings + if (JSON_HEDLEY_LIKELY(is_binary())) + { + std::swap(*(m_value.binary), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } - return result; - } + /// @brief exchanges the values + /// @sa https://json.nlohmann.me/api/basic_json/swap/ + void swap(typename binary_t::container_type& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for strings + if (JSON_HEDLEY_LIKELY(is_binary())) + { + std::swap(*(m_value.binary), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } - case lexer::token_type::begin_array: - { - if (keep and (not callback - or ((keep = callback(depth++, parse_event_t::array_start, result)) != 0))) - { - // explicitly set result to object to cope with [] - result.m_type = value_t::array; - result.m_value = value_t::array; - } + /// @} - // read next token - get_token(); + public: + ////////////////////////////////////////// + // lexicographical comparison operators // + ////////////////////////////////////////// - // closing ] -> we are done - if (last_token == lexer::token_type::end_array) - { - get_token(); - if (callback and not callback(--depth, parse_event_t::array_end, result)) - { - result = basic_json(value_t::discarded); - } - return result; - } + /// @name lexicographical comparison operators + /// @{ - // no comma is expected here - unexpect(lexer::token_type::value_separator); + /// @brief comparison: equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_eq/ + friend bool operator==(const_reference lhs, const_reference rhs) noexcept + { +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wfloat-equal" +#endif + const auto lhs_type = lhs.type(); + const auto rhs_type = rhs.type(); - // otherwise: parse values - do - { - // ugly, but could be fixed with loop reorganization - if (last_token == lexer::token_type::value_separator) - { - get_token(); - } + if (lhs_type == rhs_type) + { + switch (lhs_type) + { + case value_t::array: + return *lhs.m_value.array == *rhs.m_value.array; - // parse value - auto value = parse_internal(keep); - if (keep and not value.is_discarded()) - { - result.push_back(std::move(value)); - } - } - while (last_token == lexer::token_type::value_separator); + case value_t::object: + return *lhs.m_value.object == *rhs.m_value.object; - // closing ] - expect(lexer::token_type::end_array); - get_token(); - if (keep and callback and not callback(--depth, parse_event_t::array_end, result)) - { - result = basic_json(value_t::discarded); - } + case value_t::null: + return true; - return result; - } + case value_t::string: + return *lhs.m_value.string == *rhs.m_value.string; - case lexer::token_type::literal_null: - { - get_token(); - result.m_type = value_t::null; - break; - } + case value_t::boolean: + return lhs.m_value.boolean == rhs.m_value.boolean; - case lexer::token_type::value_string: - { - const auto s = m_lexer.get_string(); - get_token(); - result = basic_json(s); - break; - } + case value_t::number_integer: + return lhs.m_value.number_integer == rhs.m_value.number_integer; - case lexer::token_type::literal_true: - { - get_token(); - result.m_type = value_t::boolean; - result.m_value = true; - break; - } + case value_t::number_unsigned: + return lhs.m_value.number_unsigned == rhs.m_value.number_unsigned; - case lexer::token_type::literal_false: - { - get_token(); - result.m_type = value_t::boolean; - result.m_value = false; - break; - } + case value_t::number_float: + return lhs.m_value.number_float == rhs.m_value.number_float; - case lexer::token_type::value_unsigned: - case lexer::token_type::value_integer: - case lexer::token_type::value_float: - { - m_lexer.get_number(result, last_token); - get_token(); - break; - } + case value_t::binary: + return *lhs.m_value.binary == *rhs.m_value.binary; + case value_t::discarded: default: - { - // the last token was unexpected - unexpect(last_token); - } - } - - if (keep and callback and not callback(depth, parse_event_t::value, result)) - { - result = basic_json(value_t::discarded); + return false; } - return result; } - - /// get next token from lexer - typename lexer::token_type get_token() + else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_float) { - last_token = m_lexer.scan(); - return last_token; + return static_cast(lhs.m_value.number_integer) == rhs.m_value.number_float; } - - void expect(typename lexer::token_type t) const + else if (lhs_type == value_t::number_float && rhs_type == value_t::number_integer) { - if (t != last_token) - { - std::string error_msg = "parse error - unexpected "; - error_msg += (last_token == lexer::token_type::parse_error ? ("'" + m_lexer.get_token_string() + - "'") : - lexer::token_type_name(last_token)); - error_msg += "; expected " + lexer::token_type_name(t); - JSON_THROW(std::invalid_argument(error_msg)); - } + return lhs.m_value.number_float == static_cast(rhs.m_value.number_integer); } - - void unexpect(typename lexer::token_type t) const + else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_float) { - if (t == last_token) - { - std::string error_msg = "parse error - unexpected "; - error_msg += (last_token == lexer::token_type::parse_error ? ("'" + m_lexer.get_token_string() + - "'") : - lexer::token_type_name(last_token)); - JSON_THROW(std::invalid_argument(error_msg)); - } + return static_cast(lhs.m_value.number_unsigned) == rhs.m_value.number_float; + } + else if (lhs_type == value_t::number_float && rhs_type == value_t::number_unsigned) + { + return lhs.m_value.number_float == static_cast(rhs.m_value.number_unsigned); + } + else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_integer) + { + return static_cast(lhs.m_value.number_unsigned) == rhs.m_value.number_integer; + } + else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_unsigned) + { + return lhs.m_value.number_integer == static_cast(rhs.m_value.number_unsigned); } - private: - /// current level of recursion - int depth = 0; - /// callback function - const parser_callback_t callback = nullptr; - /// the type of the last read token - typename lexer::token_type last_token = lexer::token_type::uninitialized; - /// the lexer - lexer m_lexer; - }; + return false; +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + } - public: - /*! - @brief JSON Pointer + /// @brief comparison: equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_eq/ + template::value, int>::type = 0> + friend bool operator==(const_reference lhs, ScalarType rhs) noexcept + { + return lhs == basic_json(rhs); + } + + /// @brief comparison: equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_eq/ + template::value, int>::type = 0> + friend bool operator==(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) == rhs; + } - A JSON pointer defines a string syntax for identifying a specific value - within a JSON document. It can be used with functions `at` and - `operator[]`. Furthermore, JSON pointers are the base for JSON patches. + /// @brief comparison: not equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_ne/ + friend bool operator!=(const_reference lhs, const_reference rhs) noexcept + { + return !(lhs == rhs); + } - @sa [RFC 6901](https://tools.ietf.org/html/rfc6901) + /// @brief comparison: not equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_ne/ + template::value, int>::type = 0> + friend bool operator!=(const_reference lhs, ScalarType rhs) noexcept + { + return lhs != basic_json(rhs); + } - @since version 2.0.0 - */ - class json_pointer + /// @brief comparison: not equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_ne/ + template::value, int>::type = 0> + friend bool operator!=(ScalarType lhs, const_reference rhs) noexcept { - /// allow basic_json to access private members - friend class basic_json; + return basic_json(lhs) != rhs; + } - public: - /*! - @brief create JSON pointer + /// @brief comparison: less than + /// @sa https://json.nlohmann.me/api/basic_json/operator_lt/ + friend bool operator<(const_reference lhs, const_reference rhs) noexcept + { + const auto lhs_type = lhs.type(); + const auto rhs_type = rhs.type(); - Create a JSON pointer according to the syntax described in - [Section 3 of RFC6901](https://tools.ietf.org/html/rfc6901#section-3). + if (lhs_type == rhs_type) + { + switch (lhs_type) + { + case value_t::array: + // note parentheses are necessary, see + // https://github.com/nlohmann/json/issues/1530 + return (*lhs.m_value.array) < (*rhs.m_value.array); - @param[in] s string representing the JSON pointer; if omitted, the - empty string is assumed which references the whole JSON - value + case value_t::object: + return (*lhs.m_value.object) < (*rhs.m_value.object); - @throw std::domain_error if reference token is nonempty and does not - begin with a slash (`/`); example: `"JSON pointer must be empty or - begin with /"` - @throw std::domain_error if a tilde (`~`) is not followed by `0` - (representing `~`) or `1` (representing `/`); example: `"escape error: - ~ must be followed with 0 or 1"` + case value_t::null: + return false; - @liveexample{The example shows the construction several valid JSON - pointers as well as the exceptional behavior.,json_pointer} + case value_t::string: + return (*lhs.m_value.string) < (*rhs.m_value.string); - @since version 2.0.0 - */ - explicit json_pointer(const std::string& s = "") - : reference_tokens(split(s)) - {} + case value_t::boolean: + return (lhs.m_value.boolean) < (rhs.m_value.boolean); - /*! - @brief return a string representation of the JSON pointer + case value_t::number_integer: + return (lhs.m_value.number_integer) < (rhs.m_value.number_integer); - @invariant For each JSON pointer `ptr`, it holds: - @code {.cpp} - ptr == json_pointer(ptr.to_string()); - @endcode + case value_t::number_unsigned: + return (lhs.m_value.number_unsigned) < (rhs.m_value.number_unsigned); - @return a string representation of the JSON pointer + case value_t::number_float: + return (lhs.m_value.number_float) < (rhs.m_value.number_float); - @liveexample{The example shows the result of `to_string`., - json_pointer__to_string} + case value_t::binary: + return (*lhs.m_value.binary) < (*rhs.m_value.binary); - @since version 2.0.0 - */ - std::string to_string() const noexcept + case value_t::discarded: + default: + return false; + } + } + else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_float) { - return std::accumulate(reference_tokens.begin(), - reference_tokens.end(), std::string{}, - [](const std::string & a, const std::string & b) - { - return a + "/" + escape(b); - }); + return static_cast(lhs.m_value.number_integer) < rhs.m_value.number_float; } - - /// @copydoc to_string() - operator std::string() const + else if (lhs_type == value_t::number_float && rhs_type == value_t::number_integer) { - return to_string(); + return lhs.m_value.number_float < static_cast(rhs.m_value.number_integer); } - - private: - /// remove and return last reference pointer - std::string pop_back() + else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_float) { - if (is_root()) - { - JSON_THROW(std::domain_error("JSON pointer has no parent")); - } - - auto last = reference_tokens.back(); - reference_tokens.pop_back(); - return last; + return static_cast(lhs.m_value.number_unsigned) < rhs.m_value.number_float; } - - /// return whether pointer points to the root document - bool is_root() const + else if (lhs_type == value_t::number_float && rhs_type == value_t::number_unsigned) { - return reference_tokens.empty(); + return lhs.m_value.number_float < static_cast(rhs.m_value.number_unsigned); } - - json_pointer top() const + else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_unsigned) { - if (is_root()) - { - JSON_THROW(std::domain_error("JSON pointer has no parent")); - } - - json_pointer result = *this; - result.reference_tokens = {reference_tokens[0]}; - return result; + return lhs.m_value.number_integer < static_cast(rhs.m_value.number_unsigned); + } + else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_integer) + { + return static_cast(lhs.m_value.number_unsigned) < rhs.m_value.number_integer; } - /*! - @brief create and return a reference to the pointed to value + // We only reach this line if we cannot compare values. In that case, + // we compare types. Note we have to call the operator explicitly, + // because MSVC has problems otherwise. + return operator<(lhs_type, rhs_type); + } - @complexity Linear in the number of reference tokens. - */ - reference get_and_create(reference j) const - { - pointer result = &j; + /// @brief comparison: less than + /// @sa https://json.nlohmann.me/api/basic_json/operator_lt/ + template::value, int>::type = 0> + friend bool operator<(const_reference lhs, ScalarType rhs) noexcept + { + return lhs < basic_json(rhs); + } - // in case no reference tokens exist, return a reference to the - // JSON value j which will be overwritten by a primitive value - for (const auto& reference_token : reference_tokens) - { - switch (result->m_type) - { - case value_t::null: - { - if (reference_token == "0") - { - // start a new array if reference token is 0 - result = &result->operator[](0); - } - else - { - // start a new object otherwise - result = &result->operator[](reference_token); - } - break; - } + /// @brief comparison: less than + /// @sa https://json.nlohmann.me/api/basic_json/operator_lt/ + template::value, int>::type = 0> + friend bool operator<(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) < rhs; + } - case value_t::object: - { - // create an entry in the object - result = &result->operator[](reference_token); - break; - } + /// @brief comparison: less than or equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_le/ + friend bool operator<=(const_reference lhs, const_reference rhs) noexcept + { + return !(rhs < lhs); + } - case value_t::array: - { - // create an entry in the array - result = &result->operator[](static_cast(std::stoi(reference_token))); - break; - } + /// @brief comparison: less than or equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_le/ + template::value, int>::type = 0> + friend bool operator<=(const_reference lhs, ScalarType rhs) noexcept + { + return lhs <= basic_json(rhs); + } - /* - The following code is only reached if there exists a - reference token _and_ the current value is primitive. In - this case, we have an error situation, because primitive - values may only occur as single value; that is, with an - empty list of reference tokens. - */ - default: - { - JSON_THROW(std::domain_error("invalid value to unflatten")); - } - } - } + /// @brief comparison: less than or equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_le/ + template::value, int>::type = 0> + friend bool operator<=(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) <= rhs; + } - return *result; - } + /// @brief comparison: greater than + /// @sa https://json.nlohmann.me/api/basic_json/operator_gt/ + friend bool operator>(const_reference lhs, const_reference rhs) noexcept + { + return !(lhs <= rhs); + } - /*! - @brief return a reference to the pointed to value + /// @brief comparison: greater than + /// @sa https://json.nlohmann.me/api/basic_json/operator_gt/ + template::value, int>::type = 0> + friend bool operator>(const_reference lhs, ScalarType rhs) noexcept + { + return lhs > basic_json(rhs); + } - @note This version does not throw if a value is not present, but tries - to create nested values instead. For instance, calling this function - with pointer `"/this/that"` on a null value is equivalent to calling - `operator[]("this").operator[]("that")` on that value, effectively - changing the null value to an object. + /// @brief comparison: greater than + /// @sa https://json.nlohmann.me/api/basic_json/operator_gt/ + template::value, int>::type = 0> + friend bool operator>(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) > rhs; + } - @param[in] ptr a JSON value + /// @brief comparison: greater than or equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_ge/ + friend bool operator>=(const_reference lhs, const_reference rhs) noexcept + { + return !(lhs < rhs); + } - @return reference to the JSON value pointed to by the JSON pointer + /// @brief comparison: greater than or equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_ge/ + template::value, int>::type = 0> + friend bool operator>=(const_reference lhs, ScalarType rhs) noexcept + { + return lhs >= basic_json(rhs); + } - @complexity Linear in the length of the JSON pointer. + /// @brief comparison: greater than or equal + /// @sa https://json.nlohmann.me/api/basic_json/operator_ge/ + template::value, int>::type = 0> + friend bool operator>=(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) >= rhs; + } - @throw std::out_of_range if the JSON pointer can not be resolved - @throw std::domain_error if an array index begins with '0' - @throw std::invalid_argument if an array index was not a number - */ - reference get_unchecked(pointer ptr) const - { - for (const auto& reference_token : reference_tokens) - { - // convert null values to arrays or objects before continuing - if (ptr->m_type == value_t::null) - { - // check if reference token is a number - const bool nums = std::all_of(reference_token.begin(), - reference_token.end(), - [](const char x) - { - return std::isdigit(x); - }); + /// @} - // change value to array for numbers or "-" or to object - // otherwise - if (nums or reference_token == "-") - { - *ptr = value_t::array; - } - else - { - *ptr = value_t::object; - } - } + /////////////////// + // serialization // + /////////////////// - switch (ptr->m_type) - { - case value_t::object: - { - // use unchecked object access - ptr = &ptr->operator[](reference_token); - break; - } + /// @name serialization + /// @{ +#ifndef JSON_NO_IO + /// @brief serialize to stream + /// @sa https://json.nlohmann.me/api/basic_json/operator_ltlt/ + friend std::ostream& operator<<(std::ostream& o, const basic_json& j) + { + // read width member and use it as indentation parameter if nonzero + const bool pretty_print = o.width() > 0; + const auto indentation = pretty_print ? o.width() : 0; - case value_t::array: - { - // error condition (cf. RFC 6901, Sect. 4) - if (reference_token.size() > 1 and reference_token[0] == '0') - { - JSON_THROW(std::domain_error("array index must not begin with '0'")); - } + // reset width to 0 for subsequent calls to this stream + o.width(0); - if (reference_token == "-") - { - // explicitly treat "-" as index beyond the end - ptr = &ptr->operator[](ptr->m_value.array->size()); - } - else - { - // convert array index to number; unchecked access - ptr = &ptr->operator[](static_cast(std::stoi(reference_token))); - } - break; - } + // do the actual serialization + serializer s(detail::output_adapter(o), o.fill()); + s.dump(j, pretty_print, false, static_cast(indentation)); + return o; + } - default: - { - JSON_THROW(std::out_of_range("unresolved reference token '" + reference_token + "'")); - } - } - } + /// @brief serialize to stream + /// @sa https://json.nlohmann.me/api/basic_json/operator_ltlt/ + /// @deprecated This function is deprecated since 3.0.0 and will be removed in + /// version 4.0.0 of the library. Please use + /// operator<<(std::ostream&, const basic_json&) instead; that is, + /// replace calls like `j >> o;` with `o << j;`. + JSON_HEDLEY_DEPRECATED_FOR(3.0.0, operator<<(std::ostream&, const basic_json&)) + friend std::ostream& operator>>(const basic_json& j, std::ostream& o) + { + return o << j; + } +#endif // JSON_NO_IO + /// @} - return *ptr; - } - reference get_checked(pointer ptr) const - { - for (const auto& reference_token : reference_tokens) - { - switch (ptr->m_type) - { - case value_t::object: - { - // note: at performs range check - ptr = &ptr->at(reference_token); - break; - } + ///////////////////// + // deserialization // + ///////////////////// - case value_t::array: - { - if (reference_token == "-") - { - // "-" always fails the range check - JSON_THROW(std::out_of_range("array index '-' (" + - std::to_string(ptr->m_value.array->size()) + - ") is out of range")); - } + /// @name deserialization + /// @{ - // error condition (cf. RFC 6901, Sect. 4) - if (reference_token.size() > 1 and reference_token[0] == '0') - { - JSON_THROW(std::domain_error("array index must not begin with '0'")); - } + /// @brief deserialize from a compatible input + /// @sa https://json.nlohmann.me/api/basic_json/parse/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json parse(InputType&& i, + const parser_callback_t cb = nullptr, + const bool allow_exceptions = true, + const bool ignore_comments = false) + { + basic_json result; + parser(detail::input_adapter(std::forward(i)), cb, allow_exceptions, ignore_comments).parse(true, result); + return result; + } - // note: at performs range check - ptr = &ptr->at(static_cast(std::stoi(reference_token))); - break; - } + /// @brief deserialize from a pair of character iterators + /// @sa https://json.nlohmann.me/api/basic_json/parse/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json parse(IteratorType first, + IteratorType last, + const parser_callback_t cb = nullptr, + const bool allow_exceptions = true, + const bool ignore_comments = false) + { + basic_json result; + parser(detail::input_adapter(std::move(first), std::move(last)), cb, allow_exceptions, ignore_comments).parse(true, result); + return result; + } - default: - { - JSON_THROW(std::out_of_range("unresolved reference token '" + reference_token + "'")); - } - } - } + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, parse(ptr, ptr + len)) + static basic_json parse(detail::span_input_adapter&& i, + const parser_callback_t cb = nullptr, + const bool allow_exceptions = true, + const bool ignore_comments = false) + { + basic_json result; + parser(i.get(), cb, allow_exceptions, ignore_comments).parse(true, result); + return result; + } - return *ptr; - } + /// @brief check if the input is valid JSON + /// @sa https://json.nlohmann.me/api/basic_json/accept/ + template + static bool accept(InputType&& i, + const bool ignore_comments = false) + { + return parser(detail::input_adapter(std::forward(i)), nullptr, false, ignore_comments).accept(true); + } - /*! - @brief return a const reference to the pointed to value + /// @brief check if the input is valid JSON + /// @sa https://json.nlohmann.me/api/basic_json/accept/ + template + static bool accept(IteratorType first, IteratorType last, + const bool ignore_comments = false) + { + return parser(detail::input_adapter(std::move(first), std::move(last)), nullptr, false, ignore_comments).accept(true); + } - @param[in] ptr a JSON value + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, accept(ptr, ptr + len)) + static bool accept(detail::span_input_adapter&& i, + const bool ignore_comments = false) + { + return parser(i.get(), nullptr, false, ignore_comments).accept(true); + } - @return const reference to the JSON value pointed to by the JSON - pointer - */ - const_reference get_unchecked(const_pointer ptr) const - { - for (const auto& reference_token : reference_tokens) - { - switch (ptr->m_type) - { - case value_t::object: - { - // use unchecked object access - ptr = &ptr->operator[](reference_token); - break; - } + /// @brief generate SAX events + /// @sa https://json.nlohmann.me/api/basic_json/sax_parse/ + template + JSON_HEDLEY_NON_NULL(2) + static bool sax_parse(InputType&& i, SAX* sax, + input_format_t format = input_format_t::json, + const bool strict = true, + const bool ignore_comments = false) + { + auto ia = detail::input_adapter(std::forward(i)); + return format == input_format_t::json + ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) + : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); + } - case value_t::array: - { - if (reference_token == "-") - { - // "-" cannot be used for const access - JSON_THROW(std::out_of_range("array index '-' (" + - std::to_string(ptr->m_value.array->size()) + - ") is out of range")); - } + /// @brief generate SAX events + /// @sa https://json.nlohmann.me/api/basic_json/sax_parse/ + template + JSON_HEDLEY_NON_NULL(3) + static bool sax_parse(IteratorType first, IteratorType last, SAX* sax, + input_format_t format = input_format_t::json, + const bool strict = true, + const bool ignore_comments = false) + { + auto ia = detail::input_adapter(std::move(first), std::move(last)); + return format == input_format_t::json + ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) + : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); + } - // error condition (cf. RFC 6901, Sect. 4) - if (reference_token.size() > 1 and reference_token[0] == '0') - { - JSON_THROW(std::domain_error("array index must not begin with '0'")); - } + /// @brief generate SAX events + /// @sa https://json.nlohmann.me/api/basic_json/sax_parse/ + /// @deprecated This function is deprecated since 3.8.0 and will be removed in + /// version 4.0.0 of the library. Please use + /// sax_parse(ptr, ptr + len) instead. + template + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, sax_parse(ptr, ptr + len, ...)) + JSON_HEDLEY_NON_NULL(2) + static bool sax_parse(detail::span_input_adapter&& i, SAX* sax, + input_format_t format = input_format_t::json, + const bool strict = true, + const bool ignore_comments = false) + { + auto ia = i.get(); + return format == input_format_t::json + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); + } +#ifndef JSON_NO_IO + /// @brief deserialize from stream + /// @sa https://json.nlohmann.me/api/basic_json/operator_gtgt/ + /// @deprecated This stream operator is deprecated since 3.0.0 and will be removed in + /// version 4.0.0 of the library. Please use + /// operator>>(std::istream&, basic_json&) instead; that is, + /// replace calls like `j << i;` with `i >> j;`. + JSON_HEDLEY_DEPRECATED_FOR(3.0.0, operator>>(std::istream&, basic_json&)) + friend std::istream& operator<<(basic_json& j, std::istream& i) + { + return operator>>(i, j); + } - // use unchecked array access - ptr = &ptr->operator[](static_cast(std::stoi(reference_token))); - break; - } + /// @brief deserialize from stream + /// @sa https://json.nlohmann.me/api/basic_json/operator_gtgt/ + friend std::istream& operator>>(std::istream& i, basic_json& j) + { + parser(detail::input_adapter(i)).parse(false, j); + return i; + } +#endif // JSON_NO_IO + /// @} - default: - { - JSON_THROW(std::out_of_range("unresolved reference token '" + reference_token + "'")); - } - } - } + /////////////////////////// + // convenience functions // + /////////////////////////// - return *ptr; + /// @brief return the type as string + /// @sa https://json.nlohmann.me/api/basic_json/type_name/ + JSON_HEDLEY_RETURNS_NON_NULL + const char* type_name() const noexcept + { + switch (m_type) + { + case value_t::null: + return "null"; + case value_t::object: + return "object"; + case value_t::array: + return "array"; + case value_t::string: + return "string"; + case value_t::boolean: + return "boolean"; + case value_t::binary: + return "binary"; + case value_t::discarded: + return "discarded"; + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + default: + return "number"; } + } - const_reference get_checked(const_pointer ptr) const - { - for (const auto& reference_token : reference_tokens) - { - switch (ptr->m_type) - { - case value_t::object: - { - // note: at performs range check - ptr = &ptr->at(reference_token); - break; - } - case value_t::array: - { - if (reference_token == "-") - { - // "-" always fails the range check - JSON_THROW(std::out_of_range("array index '-' (" + - std::to_string(ptr->m_value.array->size()) + - ") is out of range")); - } + JSON_PRIVATE_UNLESS_TESTED: + ////////////////////// + // member variables // + ////////////////////// - // error condition (cf. RFC 6901, Sect. 4) - if (reference_token.size() > 1 and reference_token[0] == '0') - { - JSON_THROW(std::domain_error("array index must not begin with '0'")); - } + /// the type of the current element + value_t m_type = value_t::null; - // note: at performs range check - ptr = &ptr->at(static_cast(std::stoi(reference_token))); - break; - } + /// the value of the current element + json_value m_value = {}; - default: - { - JSON_THROW(std::out_of_range("unresolved reference token '" + reference_token + "'")); - } - } - } +#if JSON_DIAGNOSTICS + /// a pointer to a parent value (for debugging purposes) + basic_json* m_parent = nullptr; +#endif - return *ptr; - } + ////////////////////////////////////////// + // binary serialization/deserialization // + ////////////////////////////////////////// - /// split the string input to reference tokens - static std::vector split(const std::string& reference_string) - { - std::vector result; + /// @name binary serialization/deserialization support + /// @{ - // special case: empty reference string -> no reference tokens - if (reference_string.empty()) - { - return result; - } + public: + /// @brief create a CBOR serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_cbor/ + static std::vector to_cbor(const basic_json& j) + { + std::vector result; + to_cbor(j, result); + return result; + } - // check if nonempty reference string begins with slash - if (reference_string[0] != '/') - { - JSON_THROW(std::domain_error("JSON pointer must be empty or begin with '/'")); - } + /// @brief create a CBOR serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_cbor/ + static void to_cbor(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_cbor(j); + } - // extract the reference tokens: - // - slash: position of the last read slash (or end of string) - // - start: position after the previous slash - for ( - // search for the first slash after the first character - size_t slash = reference_string.find_first_of('/', 1), - // set the beginning of the first reference token - start = 1; - // we can stop if start == string::npos+1 = 0 - start != 0; - // set the beginning of the next reference token - // (will eventually be 0 if slash == std::string::npos) - start = slash + 1, - // find next slash - slash = reference_string.find_first_of('/', start)) - { - // use the text between the beginning of the reference token - // (start) and the last slash (slash). - auto reference_token = reference_string.substr(start, slash - start); + /// @brief create a CBOR serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_cbor/ + static void to_cbor(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_cbor(j); + } - // check reference tokens are properly escaped - for (size_t pos = reference_token.find_first_of('~'); - pos != std::string::npos; - pos = reference_token.find_first_of('~', pos + 1)) - { - assert(reference_token[pos] == '~'); + /// @brief create a MessagePack serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/ + static std::vector to_msgpack(const basic_json& j) + { + std::vector result; + to_msgpack(j, result); + return result; + } - // ~ must be followed by 0 or 1 - if (pos == reference_token.size() - 1 or - (reference_token[pos + 1] != '0' and - reference_token[pos + 1] != '1')) - { - JSON_THROW(std::domain_error("escape error: '~' must be followed with '0' or '1'")); - } - } + /// @brief create a MessagePack serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/ + static void to_msgpack(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_msgpack(j); + } - // finally, store the reference token - unescape(reference_token); - result.push_back(reference_token); - } + /// @brief create a MessagePack serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/ + static void to_msgpack(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_msgpack(j); + } - return result; - } + /// @brief create a UBJSON serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/ + static std::vector to_ubjson(const basic_json& j, + const bool use_size = false, + const bool use_type = false) + { + std::vector result; + to_ubjson(j, result, use_size, use_type); + return result; + } - private: - /*! - @brief replace all occurrences of a substring by another string + /// @brief create a UBJSON serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/ + static void to_ubjson(const basic_json& j, detail::output_adapter o, + const bool use_size = false, const bool use_type = false) + { + binary_writer(o).write_ubjson(j, use_size, use_type); + } - @param[in,out] s the string to manipulate; changed so that all - occurrences of @a f are replaced with @a t - @param[in] f the substring to replace with @a t - @param[in] t the string to replace @a f + /// @brief create a UBJSON serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/ + static void to_ubjson(const basic_json& j, detail::output_adapter o, + const bool use_size = false, const bool use_type = false) + { + binary_writer(o).write_ubjson(j, use_size, use_type); + } - @pre The search string @a f must not be empty. + /// @brief create a BSON serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_bson/ + static std::vector to_bson(const basic_json& j) + { + std::vector result; + to_bson(j, result); + return result; + } - @since version 2.0.0 - */ - static void replace_substring(std::string& s, - const std::string& f, - const std::string& t) - { - assert(not f.empty()); + /// @brief create a BSON serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_bson/ + static void to_bson(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_bson(j); + } - for ( - size_t pos = s.find(f); // find first occurrence of f - pos != std::string::npos; // make sure f was found - s.replace(pos, f.size(), t), // replace with t - pos = s.find(f, pos + t.size()) // find next occurrence of f - ); - } + /// @brief create a BSON serialization of a given JSON value + /// @sa https://json.nlohmann.me/api/basic_json/to_bson/ + static void to_bson(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_bson(j); + } - /// escape tilde and slash - static std::string escape(std::string s) - { - // escape "~"" to "~0" and "/" to "~1" - replace_substring(s, "~", "~0"); - replace_substring(s, "/", "~1"); - return s; - } + /// @brief create a JSON value from an input in CBOR format + /// @sa https://json.nlohmann.me/api/basic_json/from_cbor/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_cbor(InputType&& i, + const bool strict = true, + const bool allow_exceptions = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::forward(i)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); + return res ? result : basic_json(value_t::discarded); + } - /// unescape tilde and slash - static void unescape(std::string& s) - { - // first transform any occurrence of the sequence '~1' to '/' - replace_substring(s, "~1", "/"); - // then transform any occurrence of the sequence '~0' to '~' - replace_substring(s, "~0", "~"); - } + /// @brief create a JSON value from an input in CBOR format + /// @sa https://json.nlohmann.me/api/basic_json/from_cbor/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_cbor(IteratorType first, IteratorType last, + const bool strict = true, + const bool allow_exceptions = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::move(first), std::move(last)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); + return res ? result : basic_json(value_t::discarded); + } - /*! - @param[in] reference_string the reference string to the current value - @param[in] value the value to consider - @param[in,out] result the result object to insert values to + template + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_cbor(ptr, ptr + len)) + static basic_json from_cbor(const T* ptr, std::size_t len, + const bool strict = true, + const bool allow_exceptions = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + return from_cbor(ptr, ptr + len, strict, allow_exceptions, tag_handler); + } - @note Empty objects or arrays are flattened to `null`. - */ - static void flatten(const std::string& reference_string, - const basic_json& value, - basic_json& result) - { - switch (value.m_type) - { - case value_t::array: - { - if (value.m_value.array->empty()) - { - // flatten empty array as null - result[reference_string] = nullptr; - } - else - { - // iterate array and use index as reference string - for (size_t i = 0; i < value.m_value.array->size(); ++i) - { - flatten(reference_string + "/" + std::to_string(i), - value.m_value.array->operator[](i), result); - } - } - break; - } - case value_t::object: - { - if (value.m_value.object->empty()) - { - // flatten empty object as null - result[reference_string] = nullptr; - } - else - { - // iterate object and use keys as reference string - for (const auto& element : *value.m_value.object) - { - flatten(reference_string + "/" + escape(element.first), - element.second, result); - } - } - break; - } + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_cbor(ptr, ptr + len)) + static basic_json from_cbor(detail::span_input_adapter&& i, + const bool strict = true, + const bool allow_exceptions = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = i.get(); + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); + return res ? result : basic_json(value_t::discarded); + } - default: - { - // add primitive value with its reference string - result[reference_string] = value; - break; - } - } - } + /// @brief create a JSON value from an input in MessagePack format + /// @sa https://json.nlohmann.me/api/basic_json/from_msgpack/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_msgpack(InputType&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::forward(i)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + /// @brief create a JSON value from an input in MessagePack format + /// @sa https://json.nlohmann.me/api/basic_json/from_msgpack/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_msgpack(IteratorType first, IteratorType last, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::move(first), std::move(last)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } - /*! - @param[in] value flattened JSON + template + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len)) + static basic_json from_msgpack(const T* ptr, std::size_t len, + const bool strict = true, + const bool allow_exceptions = true) + { + return from_msgpack(ptr, ptr + len, strict, allow_exceptions); + } - @return unflattened JSON - */ - static basic_json unflatten(const basic_json& value) - { - if (not value.is_object()) - { - JSON_THROW(std::domain_error("only objects can be unflattened")); - } + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len)) + static basic_json from_msgpack(detail::span_input_adapter&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = i.get(); + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } - basic_json result; + /// @brief create a JSON value from an input in UBJSON format + /// @sa https://json.nlohmann.me/api/basic_json/from_ubjson/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_ubjson(InputType&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::forward(i)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } - // iterate the JSON object values - for (const auto& element : *value.m_value.object) - { - if (not element.second.is_primitive()) - { - JSON_THROW(std::domain_error("values in object must be primitive")); - } + /// @brief create a JSON value from an input in UBJSON format + /// @sa https://json.nlohmann.me/api/basic_json/from_ubjson/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_ubjson(IteratorType first, IteratorType last, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::move(first), std::move(last)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } - // assign value to reference pointed to by JSON pointer; Note - // that if the JSON pointer is "" (i.e., points to the whole - // value), function get_and_create returns a reference to - // result itself. An assignment will then create a primitive - // value. - json_pointer(element.first).get_and_create(result) = element.second; - } + template + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_ubjson(ptr, ptr + len)) + static basic_json from_ubjson(const T* ptr, std::size_t len, + const bool strict = true, + const bool allow_exceptions = true) + { + return from_ubjson(ptr, ptr + len, strict, allow_exceptions); + } - return result; - } + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_ubjson(ptr, ptr + len)) + static basic_json from_ubjson(detail::span_input_adapter&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = i.get(); + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } - private: - friend bool operator==(json_pointer const& lhs, - json_pointer const& rhs) noexcept - { - return lhs.reference_tokens == rhs.reference_tokens; - } + /// @brief create a JSON value from an input in BSON format + /// @sa https://json.nlohmann.me/api/basic_json/from_bson/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_bson(InputType&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::forward(i)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } - friend bool operator!=(json_pointer const& lhs, - json_pointer const& rhs) noexcept - { - return !(lhs == rhs); - } + /// @brief create a JSON value from an input in BSON format + /// @sa https://json.nlohmann.me/api/basic_json/from_bson/ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_bson(IteratorType first, IteratorType last, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::move(first), std::move(last)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } - /// the reference tokens - std::vector reference_tokens {}; - }; + template + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_bson(ptr, ptr + len)) + static basic_json from_bson(const T* ptr, std::size_t len, + const bool strict = true, + const bool allow_exceptions = true) + { + return from_bson(ptr, ptr + len, strict, allow_exceptions); + } + + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_bson(ptr, ptr + len)) + static basic_json from_bson(detail::span_input_adapter&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = i.get(); + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + /// @} ////////////////////////// // JSON Pointer support // @@ -12248,143 +21143,36 @@ class basic_json /// @name JSON Pointer functions /// @{ - /*! - @brief access specified element via JSON Pointer - - Uses a JSON pointer to retrieve a reference to the respective JSON value. - No bound checking is performed. Similar to @ref operator[](const typename - object_t::key_type&), `null` values are created in arrays and objects if - necessary. - - In particular: - - If the JSON pointer points to an object key that does not exist, it - is created an filled with a `null` value before a reference to it - is returned. - - If the JSON pointer points to an array index that does not exist, it - is created an filled with a `null` value before a reference to it - is returned. All indices between the current maximum and the given - index are also filled with `null`. - - The special value `-` is treated as a synonym for the index past the - end. - - @param[in] ptr a JSON pointer - - @return reference to the element pointed to by @a ptr - - @complexity Constant. - - @throw std::out_of_range if the JSON pointer can not be resolved - @throw std::domain_error if an array index begins with '0' - @throw std::invalid_argument if an array index was not a number - - @liveexample{The behavior is shown in the example.,operatorjson_pointer} - - @since version 2.0.0 - */ + /// @brief access specified element via JSON Pointer + /// @sa https://json.nlohmann.me/api/basic_json/operator%5B%5D/ reference operator[](const json_pointer& ptr) { return ptr.get_unchecked(this); } - /*! - @brief access specified element via JSON Pointer - - Uses a JSON pointer to retrieve a reference to the respective JSON value. - No bound checking is performed. The function does not change the JSON - value; no `null` values are created. In particular, the the special value - `-` yields an exception. - - @param[in] ptr JSON pointer to the desired element - - @return const reference to the element pointed to by @a ptr - - @complexity Constant. - - @throw std::out_of_range if the JSON pointer can not be resolved - @throw std::domain_error if an array index begins with '0' - @throw std::invalid_argument if an array index was not a number - - @liveexample{The behavior is shown in the example.,operatorjson_pointer_const} - - @since version 2.0.0 - */ + /// @brief access specified element via JSON Pointer + /// @sa https://json.nlohmann.me/api/basic_json/operator%5B%5D/ const_reference operator[](const json_pointer& ptr) const { return ptr.get_unchecked(this); } - /*! - @brief access specified element via JSON Pointer - - Returns a reference to the element at with specified JSON pointer @a ptr, - with bounds checking. - - @param[in] ptr JSON pointer to the desired element - - @return reference to the element pointed to by @a ptr - - @complexity Constant. - - @throw std::out_of_range if the JSON pointer can not be resolved - @throw std::domain_error if an array index begins with '0' - @throw std::invalid_argument if an array index was not a number - - @liveexample{The behavior is shown in the example.,at_json_pointer} - - @since version 2.0.0 - */ + /// @brief access specified element via JSON Pointer + /// @sa https://json.nlohmann.me/api/basic_json/at/ reference at(const json_pointer& ptr) { return ptr.get_checked(this); } - /*! - @brief access specified element via JSON Pointer - - Returns a const reference to the element at with specified JSON pointer @a - ptr, with bounds checking. - - @param[in] ptr JSON pointer to the desired element - - @return reference to the element pointed to by @a ptr - - @complexity Constant. - - @throw std::out_of_range if the JSON pointer can not be resolved - @throw std::domain_error if an array index begins with '0' - @throw std::invalid_argument if an array index was not a number - - @liveexample{The behavior is shown in the example.,at_json_pointer_const} - - @since version 2.0.0 - */ + /// @brief access specified element via JSON Pointer + /// @sa https://json.nlohmann.me/api/basic_json/at/ const_reference at(const json_pointer& ptr) const { return ptr.get_checked(this); } - /*! - @brief return flattened JSON value - - The function creates a JSON object whose keys are JSON pointers (see [RFC - 6901](https://tools.ietf.org/html/rfc6901)) and whose values are all - primitive. The original JSON value can be restored using the @ref - unflatten() function. - - @return an object that maps JSON pointers to primitive values - - @note Empty objects and arrays are flattened to `null` and will not be - reconstructed correctly by the @ref unflatten() function. - - @complexity Linear in the size the JSON value. - - @liveexample{The following code shows how a JSON object is flattened to an - object whose keys consist of JSON pointers.,flatten} - - @sa @ref unflatten() for the reverse function - - @since version 2.0.0 - */ + /// @brief return flattened JSON value + /// @sa https://json.nlohmann.me/api/basic_json/flatten/ basic_json flatten() const { basic_json result(value_t::object); @@ -12392,33 +21180,8 @@ class basic_json return result; } - /*! - @brief unflatten a previously flattened JSON value - - The function restores the arbitrary nesting of a JSON value that has been - flattened before using the @ref flatten() function. The JSON value must - meet certain constraints: - 1. The value must be an object. - 2. The keys must be JSON pointers (see - [RFC 6901](https://tools.ietf.org/html/rfc6901)) - 3. The mapped values must be primitive JSON types. - - @return the original JSON from a flattened version - - @note Empty objects and arrays are flattened by @ref flatten() to `null` - values and can not unflattened to their original type. Apart from - this example, for a JSON value `j`, the following is always true: - `j == j.flatten().unflatten()`. - - @complexity Linear in the size the JSON value. - - @liveexample{The following code shows how a flattened JSON object is - unflattened into the original nested JSON object.,unflatten} - - @sa @ref flatten() for the reverse function - - @since version 2.0.0 - */ + /// @brief unflatten a previously flattened JSON value + /// @sa https://json.nlohmann.me/api/basic_json/unflatten/ basic_json unflatten() const { return json_pointer::unflatten(*this); @@ -12433,42 +21196,8 @@ class basic_json /// @name JSON Patch functions /// @{ - /*! - @brief applies a JSON patch - - [JSON Patch](http://jsonpatch.com) defines a JSON document structure for - expressing a sequence of operations to apply to a JSON) document. With - this function, a JSON Patch is applied to the current JSON value by - executing all operations from the patch. - - @param[in] json_patch JSON patch document - @return patched document - - @note The application of a patch is atomic: Either all operations succeed - and the patched document is returned or an exception is thrown. In - any case, the original value is not changed: the patch is applied - to a copy of the value. - - @throw std::out_of_range if a JSON pointer inside the patch could not - be resolved successfully in the current JSON value; example: `"key baz - not found"` - @throw invalid_argument if the JSON patch is malformed (e.g., mandatory - attributes are missing); example: `"operation add must have member path"` - - @complexity Linear in the size of the JSON value and the length of the - JSON patch. As usually only a fraction of the JSON value is affected by - the patch, the complexity can usually be neglected. - - @liveexample{The following code shows how a JSON patch is applied to a - value.,patch} - - @sa @ref diff -- create a JSON patch by comparing two JSON values - - @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902) - @sa [RFC 6901 (JSON Pointer)](https://tools.ietf.org/html/rfc6901) - - @since version 2.0.0 - */ + /// @brief applies a JSON patch + /// @sa https://json.nlohmann.me/api/basic_json/patch/ basic_json patch(const basic_json& json_patch) const { // make a working copy to apply the patch to @@ -12477,7 +21206,7 @@ class basic_json // the valid JSON Patch operations enum class patch_operations {add, remove, replace, move, copy, test, invalid}; - const auto get_op = [](const std::string op) + const auto get_op = [](const std::string & op) { if (op == "add") { @@ -12511,71 +21240,75 @@ class basic_json const auto operation_add = [&result](json_pointer & ptr, basic_json val) { // adding to the root of the target document means replacing it - if (ptr.is_root()) + if (ptr.empty()) { result = val; + return; } - else + + // make sure the top element of the pointer exists + json_pointer top_pointer = ptr.top(); + if (top_pointer != ptr) + { + result.at(top_pointer); + } + + // get reference to parent of JSON pointer ptr + const auto last_path = ptr.back(); + ptr.pop_back(); + basic_json& parent = result[ptr]; + + switch (parent.m_type) { - // make sure the top element of the pointer exists - json_pointer top_pointer = ptr.top(); - if (top_pointer != ptr) + case value_t::null: + case value_t::object: { - result.at(top_pointer); + // use operator[] to add value + parent[last_path] = val; + break; } - // get reference to parent of JSON pointer ptr - const auto last_path = ptr.pop_back(); - basic_json& parent = result[ptr]; - - switch (parent.m_type) + case value_t::array: { - case value_t::null: - case value_t::object: + if (last_path == "-") { - // use operator[] to add value - parent[last_path] = val; - break; + // special case: append to back + parent.push_back(val); } - - case value_t::array: + else { - if (last_path == "-") - { - // special case: append to back - parent.push_back(val); - } - else + const auto idx = json_pointer::array_index(last_path); + if (JSON_HEDLEY_UNLIKELY(idx > parent.size())) { - const auto idx = std::stoi(last_path); - if (static_cast(idx) > parent.size()) - { - // avoid undefined behavior - JSON_THROW(std::out_of_range("array index " + std::to_string(idx) + " is out of range")); - } - else - { - // default case: insert add offset - parent.insert(parent.begin() + static_cast(idx), val); - } + // avoid undefined behavior + JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", parent)); } - break; - } - default: - { - // if there exists a parent it cannot be primitive - assert(false); // LCOV_EXCL_LINE + // default case: insert add offset + parent.insert(parent.begin() + static_cast(idx), val); } + break; } + + // if there exists a parent it cannot be primitive + case value_t::string: // LCOV_EXCL_LINE + case value_t::boolean: // LCOV_EXCL_LINE + case value_t::number_integer: // LCOV_EXCL_LINE + case value_t::number_unsigned: // LCOV_EXCL_LINE + case value_t::number_float: // LCOV_EXCL_LINE + case value_t::binary: // LCOV_EXCL_LINE + case value_t::discarded: // LCOV_EXCL_LINE + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE } }; // wrapper for "remove" operation; remove value at ptr - const auto operation_remove = [&result](json_pointer & ptr) + const auto operation_remove = [this, &result](json_pointer & ptr) { // get reference to parent of JSON pointer ptr - const auto last_path = ptr.pop_back(); + const auto last_path = ptr.back(); + ptr.pop_back(); basic_json& parent = result.at(ptr); // remove child @@ -12583,27 +21316,26 @@ class basic_json { // perform range check auto it = parent.find(last_path); - if (it != parent.end()) + if (JSON_HEDLEY_LIKELY(it != parent.end())) { parent.erase(it); } else { - JSON_THROW(std::out_of_range("key '" + last_path + "' not found")); + JSON_THROW(out_of_range::create(403, "key '" + last_path + "' not found", *this)); } } else if (parent.is_array()) { // note erase performs range check - parent.erase(static_cast(std::stoi(last_path))); + parent.erase(json_pointer::array_index(last_path)); } }; - // type check - if (not json_patch.is_array()) + // type check: top level value must be an array + if (JSON_HEDLEY_UNLIKELY(!json_patch.is_array())) { - // a JSON patch must be an array of objects - JSON_THROW(std::invalid_argument("JSON patch must be an array of objects")); + JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects", json_patch)); } // iterate and apply the operations @@ -12612,7 +21344,7 @@ class basic_json // wrapper to get a value for an operation const auto get_value = [&val](const std::string & op, const std::string & member, - bool string_type) -> basic_json& + bool string_type) -> basic_json & { // find value auto it = val.m_value.object->find(member); @@ -12621,30 +21353,32 @@ class basic_json const auto error_msg = (op == "op") ? "operation" : "operation '" + op + "'"; // check if desired value is present - if (it == val.m_value.object->end()) + if (JSON_HEDLEY_UNLIKELY(it == val.m_value.object->end())) { - JSON_THROW(std::invalid_argument(error_msg + " must have member '" + member + "'")); + // NOLINTNEXTLINE(performance-inefficient-string-concatenation) + JSON_THROW(parse_error::create(105, 0, error_msg + " must have member '" + member + "'", val)); } // check if result is of type string - if (string_type and not it->second.is_string()) + if (JSON_HEDLEY_UNLIKELY(string_type && !it->second.is_string())) { - JSON_THROW(std::invalid_argument(error_msg + " must have string member '" + member + "'")); + // NOLINTNEXTLINE(performance-inefficient-string-concatenation) + JSON_THROW(parse_error::create(105, 0, error_msg + " must have string member '" + member + "'", val)); } // no error: return value return it->second; }; - // type check - if (not val.is_object()) + // type check: every element of the array must be an object + if (JSON_HEDLEY_UNLIKELY(!val.is_object())) { - JSON_THROW(std::invalid_argument("JSON patch must be an array of objects")); + JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects", val)); } // collect mandatory members - const std::string op = get_value("op", "op", true); - const std::string path = get_value(op, "path", true); + const auto op = get_value("op", "op", true).template get(); + const auto path = get_value(op, "path", true).template get(); json_pointer ptr(path); switch (get_op(op)) @@ -12670,7 +21404,7 @@ class basic_json case patch_operations::move: { - const std::string from_path = get_value("move", "from", true); + const auto from_path = get_value("move", "from", true).template get(); json_pointer from_ptr(from_path); // the "from" location must exist - use at() @@ -12687,11 +21421,16 @@ class basic_json case patch_operations::copy: { - const std::string from_path = get_value("copy", "from", true);; + const auto from_path = get_value("copy", "from", true).template get(); const json_pointer from_ptr(from_path); // the "from" location must exist - use at() - result[ptr] = result.at(from_ptr); + basic_json v = result.at(from_ptr); + + // The copy is functionally identical to an "add" + // operation at the target location using the value + // specified in the "from" member. + operation_add(ptr, v); break; } @@ -12704,25 +21443,26 @@ class basic_json // the "path" location must exist - use at() success = (result.at(ptr) == get_value("test", "value", false)); } - JSON_CATCH (std::out_of_range&) + JSON_INTERNAL_CATCH (out_of_range&) { // ignore out of range errors: success remains false } // throw an exception if test fails - if (not success) + if (JSON_HEDLEY_UNLIKELY(!success)) { - JSON_THROW(std::domain_error("unsuccessful: " + val.dump())); + JSON_THROW(other_error::create(501, "unsuccessful: " + val.dump(), val)); } break; } case patch_operations::invalid: + default: { // op must be "add", "remove", "replace", "move", "copy", or // "test" - JSON_THROW(std::invalid_argument("operation value '" + op + "' is invalid")); + JSON_THROW(parse_error::create(105, 0, "operation value '" + op + "' is invalid", val)); } } } @@ -12730,40 +21470,10 @@ class basic_json return result; } - /*! - @brief creates a diff as a JSON patch - - Creates a [JSON Patch](http://jsonpatch.com) so that value @a source can - be changed into the value @a target by calling @ref patch function. - - @invariant For two JSON values @a source and @a target, the following code - yields always `true`: - @code {.cpp} - source.patch(diff(source, target)) == target; - @endcode - - @note Currently, only `remove`, `add`, and `replace` operations are - generated. - - @param[in] source JSON value to compare from - @param[in] target JSON value to compare against - @param[in] path helper value to create JSON pointers - - @return a JSON patch to convert the @a source to @a target - - @complexity Linear in the lengths of @a source and @a target. - - @liveexample{The following code shows how a JSON patch is created as a - diff for two JSON values.,diff} - - @sa @ref patch -- apply a JSON patch - - @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902) - - @since version 2.0.0 - */ - static basic_json diff(const basic_json& source, - const basic_json& target, + /// @brief creates a diff as a JSON patch + /// @sa https://json.nlohmann.me/api/basic_json/diff/ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json diff(const basic_json& source, const basic_json& target, const std::string& path = "") { // the patch @@ -12780,224 +21490,415 @@ class basic_json // different types: replace value result.push_back( { - {"op", "replace"}, - {"path", path}, - {"value", target} + {"op", "replace"}, {"path", path}, {"value", target} }); + return result; } - else + + switch (source.type()) { - switch (source.type()) + case value_t::array: { - case value_t::array: + // first pass: traverse common elements + std::size_t i = 0; + while (i < source.size() && i < target.size()) + { + // recursive call to compare array values at index i + auto temp_diff = diff(source[i], target[i], path + "/" + std::to_string(i)); + result.insert(result.end(), temp_diff.begin(), temp_diff.end()); + ++i; + } + + // We now reached the end of at least one array + // in a second pass, traverse the remaining elements + + // remove my remaining elements + const auto end_index = static_cast(result.size()); + while (i < source.size()) { - // first pass: traverse common elements - size_t i = 0; - while (i < source.size() and i < target.size()) + // add operations in reverse order to avoid invalid + // indices + result.insert(result.begin() + end_index, object( { - // recursive call to compare array values at index i - auto temp_diff = diff(source[i], target[i], path + "/" + std::to_string(i)); - result.insert(result.end(), temp_diff.begin(), temp_diff.end()); - ++i; - } + {"op", "remove"}, + {"path", path + "/" + std::to_string(i)} + })); + ++i; + } + + // add other remaining elements + while (i < target.size()) + { + result.push_back( + { + {"op", "add"}, + {"path", path + "/-"}, + {"value", target[i]} + }); + ++i; + } + + break; + } - // i now reached the end of at least one array - // in a second pass, traverse the remaining elements + case value_t::object: + { + // first pass: traverse this object's elements + for (auto it = source.cbegin(); it != source.cend(); ++it) + { + // escape the key name to be used in a JSON patch + const auto path_key = path + "/" + detail::escape(it.key()); - // remove my remaining elements - const auto end_index = static_cast(result.size()); - while (i < source.size()) + if (target.find(it.key()) != target.end()) { - // add operations in reverse order to avoid invalid - // indices - result.insert(result.begin() + end_index, object( + // recursive call to compare object values at key it + auto temp_diff = diff(it.value(), target[it.key()], path_key); + result.insert(result.end(), temp_diff.begin(), temp_diff.end()); + } + else + { + // found a key that is not in o -> remove it + result.push_back(object( { - {"op", "remove"}, - {"path", path + "/" + std::to_string(i)} + {"op", "remove"}, {"path", path_key} })); - ++i; } + } - // add other remaining elements - while (i < target.size()) + // second pass: traverse other object's elements + for (auto it = target.cbegin(); it != target.cend(); ++it) + { + if (source.find(it.key()) == source.end()) { + // found a key that is not in this -> add it + const auto path_key = path + "/" + detail::escape(it.key()); result.push_back( { - {"op", "add"}, - {"path", path + "/" + std::to_string(i)}, - {"value", target[i]} + {"op", "add"}, {"path", path_key}, + {"value", it.value()} }); - ++i; } - - break; } - case value_t::object: + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + // both primitive type: replace value + result.push_back( { - // first pass: traverse this object's elements - for (auto it = source.begin(); it != source.end(); ++it) - { - // escape the key name to be used in a JSON patch - const auto key = json_pointer::escape(it.key()); + {"op", "replace"}, {"path", path}, {"value", target} + }); + break; + } + } - if (target.find(it.key()) != target.end()) - { - // recursive call to compare object values at key it - auto temp_diff = diff(it.value(), target[it.key()], path + "/" + key); - result.insert(result.end(), temp_diff.begin(), temp_diff.end()); - } - else - { - // found a key that is not in o -> remove it - result.push_back(object( - { - {"op", "remove"}, - {"path", path + "/" + key} - })); - } - } + return result; + } - // second pass: traverse other object's elements - for (auto it = target.begin(); it != target.end(); ++it) - { - if (source.find(it.key()) == source.end()) - { - // found a key that is not in this -> add it - const auto key = json_pointer::escape(it.key()); - result.push_back( - { - {"op", "add"}, - {"path", path + "/" + key}, - {"value", it.value()} - }); - } - } + /// @} - break; - } + //////////////////////////////// + // JSON Merge Patch functions // + //////////////////////////////// - default: + /// @name JSON Merge Patch functions + /// @{ + + /// @brief applies a JSON Merge Patch + /// @sa https://json.nlohmann.me/api/basic_json/merge_patch/ + void merge_patch(const basic_json& apply_patch) + { + if (apply_patch.is_object()) + { + if (!is_object()) + { + *this = object(); + } + for (auto it = apply_patch.begin(); it != apply_patch.end(); ++it) + { + if (it.value().is_null()) { - // both primitive type: replace value - result.push_back( - { - {"op", "replace"}, - {"path", path}, - {"value", target} - }); - break; + erase(it.key()); + } + else + { + operator[](it.key()).merge_patch(it.value()); } } } - - return result; + else + { + *this = apply_patch; + } } /// @} }; -///////////// -// presets // -///////////// - -/*! -@brief default JSON class - -This type is the default specialization of the @ref basic_json class which -uses the standard template types. +/// @brief user-defined to_string function for JSON values +/// @sa https://json.nlohmann.me/api/basic_json/to_string/ +NLOHMANN_BASIC_JSON_TPL_DECLARATION +std::string to_string(const NLOHMANN_BASIC_JSON_TPL& j) +{ + return j.dump(); +} -@since version 1.0.0 -*/ -using json = basic_json<>; } // namespace nlohmann - /////////////////////// // nonmember support // /////////////////////// -// specialization of std::swap, and std::hash -namespace std +namespace std // NOLINT(cert-dcl58-cpp) { -/*! -@brief exchanges the values of two JSON objects -@since version 1.0.0 -*/ -template<> -inline void swap(nlohmann::json& j1, - nlohmann::json& j2) noexcept( - is_nothrow_move_constructible::value and - is_nothrow_move_assignable::value - ) +/// @brief hash value for JSON objects +/// @sa https://json.nlohmann.me/api/basic_json/std_hash/ +NLOHMANN_BASIC_JSON_TPL_DECLARATION +struct hash { - j1.swap(j2); -} + std::size_t operator()(const nlohmann::NLOHMANN_BASIC_JSON_TPL& j) const + { + return nlohmann::detail::hash(j); + } +}; -/// hash value for JSON objects +// specialization for std::less template<> -struct hash +struct less< ::nlohmann::detail::value_t> // do not remove the space after '<', see https://github.com/nlohmann/json/pull/679 { /*! - @brief return a hash value for a JSON object - - @since version 1.0.0 + @brief compare two value_t enum values + @since version 3.0.0 */ - std::size_t operator()(const nlohmann::json& j) const + bool operator()(nlohmann::detail::value_t lhs, + nlohmann::detail::value_t rhs) const noexcept { - // a naive hashing via the string representation - const auto& h = hash(); - return h(j.dump()); + return nlohmann::detail::operator<(lhs, rhs); } }; -} // namespace std -/*! -@brief user-defined string literal for JSON values +// C++20 prohibit function specialization in the std namespace. +#ifndef JSON_HAS_CPP_20 + +/// @brief exchanges the values of two JSON objects +/// @sa https://json.nlohmann.me/api/basic_json/std_swap/ +NLOHMANN_BASIC_JSON_TPL_DECLARATION +inline void swap(nlohmann::NLOHMANN_BASIC_JSON_TPL& j1, nlohmann::NLOHMANN_BASIC_JSON_TPL& j2) noexcept( // NOLINT(readability-inconsistent-declaration-parameter-name) + is_nothrow_move_constructible::value&& // NOLINT(misc-redundant-expression) + is_nothrow_move_assignable::value) +{ + j1.swap(j2); +} -This operator implements a user-defined string literal for JSON objects. It -can be used by adding `"_json"` to a string literal and returns a JSON object -if no parse error occurred. +#endif -@param[in] s a string representation of a JSON object -@param[in] n the length of string @a s -@return a JSON object +} // namespace std -@since version 1.0.0 -*/ +/// @brief user-defined string literal for JSON values +/// @sa https://json.nlohmann.me/api/basic_json/operator_literal_json/ +JSON_HEDLEY_NON_NULL(1) inline nlohmann::json operator "" _json(const char* s, std::size_t n) { return nlohmann::json::parse(s, s + n); } -/*! -@brief user-defined string literal for JSON pointer - -This operator implements a user-defined string literal for JSON Pointers. It -can be used by adding `"_json_pointer"` to a string literal and returns a JSON pointer -object if no parse error occurred. - -@param[in] s a string representation of a JSON Pointer -@param[in] n the length of string @a s -@return a JSON pointer object - -@since version 2.0.0 -*/ +/// @brief user-defined string literal for JSON pointer +/// @sa https://json.nlohmann.me/api/basic_json/operator_literal_json_pointer/ +JSON_HEDLEY_NON_NULL(1) inline nlohmann::json::json_pointer operator "" _json_pointer(const char* s, std::size_t n) { return nlohmann::json::json_pointer(std::string(s, n)); } -// restore GCC/clang diagnostic settings -#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__) - #pragma GCC diagnostic pop +// #include + + +// restore clang diagnostic settings +#if defined(__clang__) + #pragma clang diagnostic pop #endif // clean up +#undef JSON_ASSERT +#undef JSON_INTERNAL_CATCH #undef JSON_CATCH -#undef JSON_DEPRECATED #undef JSON_THROW #undef JSON_TRY -// clang-format on -#endif +#undef JSON_PRIVATE_UNLESS_TESTED +#undef JSON_HAS_CPP_11 +#undef JSON_HAS_CPP_14 +#undef JSON_HAS_CPP_17 +#undef JSON_HAS_CPP_20 +#undef JSON_HAS_FILESYSTEM +#undef JSON_HAS_EXPERIMENTAL_FILESYSTEM +#undef NLOHMANN_BASIC_JSON_TPL_DECLARATION +#undef NLOHMANN_BASIC_JSON_TPL +#undef JSON_EXPLICIT +#undef NLOHMANN_CAN_CALL_STD_FUNC_IMPL + +// #include + + +#undef JSON_HEDLEY_ALWAYS_INLINE +#undef JSON_HEDLEY_ARM_VERSION +#undef JSON_HEDLEY_ARM_VERSION_CHECK +#undef JSON_HEDLEY_ARRAY_PARAM +#undef JSON_HEDLEY_ASSUME +#undef JSON_HEDLEY_BEGIN_C_DECLS +#undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_BUILTIN +#undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_EXTENSION +#undef JSON_HEDLEY_CLANG_HAS_FEATURE +#undef JSON_HEDLEY_CLANG_HAS_WARNING +#undef JSON_HEDLEY_COMPCERT_VERSION +#undef JSON_HEDLEY_COMPCERT_VERSION_CHECK +#undef JSON_HEDLEY_CONCAT +#undef JSON_HEDLEY_CONCAT3 +#undef JSON_HEDLEY_CONCAT3_EX +#undef JSON_HEDLEY_CONCAT_EX +#undef JSON_HEDLEY_CONST +#undef JSON_HEDLEY_CONSTEXPR +#undef JSON_HEDLEY_CONST_CAST +#undef JSON_HEDLEY_CPP_CAST +#undef JSON_HEDLEY_CRAY_VERSION +#undef JSON_HEDLEY_CRAY_VERSION_CHECK +#undef JSON_HEDLEY_C_DECL +#undef JSON_HEDLEY_DEPRECATED +#undef JSON_HEDLEY_DEPRECATED_FOR +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION +#undef JSON_HEDLEY_DIAGNOSTIC_POP +#undef JSON_HEDLEY_DIAGNOSTIC_PUSH +#undef JSON_HEDLEY_DMC_VERSION +#undef JSON_HEDLEY_DMC_VERSION_CHECK +#undef JSON_HEDLEY_EMPTY_BASES +#undef JSON_HEDLEY_EMSCRIPTEN_VERSION +#undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK +#undef JSON_HEDLEY_END_C_DECLS +#undef JSON_HEDLEY_FLAGS +#undef JSON_HEDLEY_FLAGS_CAST +#undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_BUILTIN +#undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_EXTENSION +#undef JSON_HEDLEY_GCC_HAS_FEATURE +#undef JSON_HEDLEY_GCC_HAS_WARNING +#undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK +#undef JSON_HEDLEY_GCC_VERSION +#undef JSON_HEDLEY_GCC_VERSION_CHECK +#undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_BUILTIN +#undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_EXTENSION +#undef JSON_HEDLEY_GNUC_HAS_FEATURE +#undef JSON_HEDLEY_GNUC_HAS_WARNING +#undef JSON_HEDLEY_GNUC_VERSION +#undef JSON_HEDLEY_GNUC_VERSION_CHECK +#undef JSON_HEDLEY_HAS_ATTRIBUTE +#undef JSON_HEDLEY_HAS_BUILTIN +#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS +#undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_HAS_EXTENSION +#undef JSON_HEDLEY_HAS_FEATURE +#undef JSON_HEDLEY_HAS_WARNING +#undef JSON_HEDLEY_IAR_VERSION +#undef JSON_HEDLEY_IAR_VERSION_CHECK +#undef JSON_HEDLEY_IBM_VERSION +#undef JSON_HEDLEY_IBM_VERSION_CHECK +#undef JSON_HEDLEY_IMPORT +#undef JSON_HEDLEY_INLINE +#undef JSON_HEDLEY_INTEL_CL_VERSION +#undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK +#undef JSON_HEDLEY_INTEL_VERSION +#undef JSON_HEDLEY_INTEL_VERSION_CHECK +#undef JSON_HEDLEY_IS_CONSTANT +#undef JSON_HEDLEY_IS_CONSTEXPR_ +#undef JSON_HEDLEY_LIKELY +#undef JSON_HEDLEY_MALLOC +#undef JSON_HEDLEY_MCST_LCC_VERSION +#undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK +#undef JSON_HEDLEY_MESSAGE +#undef JSON_HEDLEY_MSVC_VERSION +#undef JSON_HEDLEY_MSVC_VERSION_CHECK +#undef JSON_HEDLEY_NEVER_INLINE +#undef JSON_HEDLEY_NON_NULL +#undef JSON_HEDLEY_NO_ESCAPE +#undef JSON_HEDLEY_NO_RETURN +#undef JSON_HEDLEY_NO_THROW +#undef JSON_HEDLEY_NULL +#undef JSON_HEDLEY_PELLES_VERSION +#undef JSON_HEDLEY_PELLES_VERSION_CHECK +#undef JSON_HEDLEY_PGI_VERSION +#undef JSON_HEDLEY_PGI_VERSION_CHECK +#undef JSON_HEDLEY_PREDICT +#undef JSON_HEDLEY_PRINTF_FORMAT +#undef JSON_HEDLEY_PRIVATE +#undef JSON_HEDLEY_PUBLIC +#undef JSON_HEDLEY_PURE +#undef JSON_HEDLEY_REINTERPRET_CAST +#undef JSON_HEDLEY_REQUIRE +#undef JSON_HEDLEY_REQUIRE_CONSTEXPR +#undef JSON_HEDLEY_REQUIRE_MSG +#undef JSON_HEDLEY_RESTRICT +#undef JSON_HEDLEY_RETURNS_NON_NULL +#undef JSON_HEDLEY_SENTINEL +#undef JSON_HEDLEY_STATIC_ASSERT +#undef JSON_HEDLEY_STATIC_CAST +#undef JSON_HEDLEY_STRINGIFY +#undef JSON_HEDLEY_STRINGIFY_EX +#undef JSON_HEDLEY_SUNPRO_VERSION +#undef JSON_HEDLEY_SUNPRO_VERSION_CHECK +#undef JSON_HEDLEY_TINYC_VERSION +#undef JSON_HEDLEY_TINYC_VERSION_CHECK +#undef JSON_HEDLEY_TI_ARMCL_VERSION +#undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL2000_VERSION +#undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL430_VERSION +#undef JSON_HEDLEY_TI_CL430_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL6X_VERSION +#undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL7X_VERSION +#undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK +#undef JSON_HEDLEY_TI_CLPRU_VERSION +#undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK +#undef JSON_HEDLEY_TI_VERSION +#undef JSON_HEDLEY_TI_VERSION_CHECK +#undef JSON_HEDLEY_UNAVAILABLE +#undef JSON_HEDLEY_UNLIKELY +#undef JSON_HEDLEY_UNPREDICTABLE +#undef JSON_HEDLEY_UNREACHABLE +#undef JSON_HEDLEY_UNREACHABLE_RETURN +#undef JSON_HEDLEY_VERSION +#undef JSON_HEDLEY_VERSION_DECODE_MAJOR +#undef JSON_HEDLEY_VERSION_DECODE_MINOR +#undef JSON_HEDLEY_VERSION_DECODE_REVISION +#undef JSON_HEDLEY_VERSION_ENCODE +#undef JSON_HEDLEY_WARNING +#undef JSON_HEDLEY_WARN_UNUSED_RESULT +#undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG +#undef JSON_HEDLEY_FALL_THROUGH + + + +#endif // INCLUDE_NLOHMANN_JSON_HPP_ \ No newline at end of file From 4062214a0decb3c6bcbe077d79b95dc623ed0bcf Mon Sep 17 00:00:00 2001 From: Autel Date: Wed, 23 Mar 2022 21:13:09 +0800 Subject: [PATCH 05/84] fix 4420 --- ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp b/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp index f30c9e210a..2c9064fb9b 100755 --- a/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp +++ b/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp @@ -908,10 +908,10 @@ rclcpp::Time AirsimROSWrapper::chrono_timestamp_to_ros(const std::chrono::system rclcpp::Time AirsimROSWrapper::airsim_timestamp_to_ros(const msr::airlib::TTimePoint& stamp) const { // airsim appears to use chrono::system_clock with nanosecond precision - std::chrono::nanoseconds dur(stamp); - std::chrono::time_point tp(dur); - rclcpp::Time cur_time = chrono_timestamp_to_ros(tp); - return cur_time; + //std::chrono::nanoseconds dur(stamp); + //std::chrono::time_point tp(dur); + //rclcpp::Time cur_time = chrono_timestamp_to_ros(tp); + return rclcpp::Time(stamp); } void AirsimROSWrapper::drone_state_timer_cb() From dbd9ae69bf1c0a24b46c9fecb8345acb6ffe3b23 Mon Sep 17 00:00:00 2001 From: Autel Date: Sun, 27 Mar 2022 16:07:55 +0800 Subject: [PATCH 06/84] remove chrono_timestamp_to_ros and airsim_timestamp_to_ros --- .../include/airsim_ros_wrapper.h | 4 -- .../src/airsim_ros_wrapper.cpp | 45 ++++++------------- 2 files changed, 14 insertions(+), 35 deletions(-) diff --git a/ros2/src/airsim_ros_pkgs/include/airsim_ros_wrapper.h b/ros2/src/airsim_ros_pkgs/include/airsim_ros_wrapper.h index cf94c080d9..c3ff05ef8f 100644 --- a/ros2/src/airsim_ros_pkgs/include/airsim_ros_wrapper.h +++ b/ros2/src/airsim_ros_pkgs/include/airsim_ros_wrapper.h @@ -277,10 +277,6 @@ class AirsimROSWrapper void read_params_from_yaml_and_fill_cam_info_msg(const std::string& file_name, sensor_msgs::msg::CameraInfo& cam_info) const; void convert_yaml_to_simple_mat(const YAML::Node& node, SimpleMatrix& m) const; // todo ugly - // simulation time utility - rclcpp::Time airsim_timestamp_to_ros(const msr::airlib::TTimePoint& stamp) const; - rclcpp::Time chrono_timestamp_to_ros(const std::chrono::system_clock::time_point& stamp) const; - template const SensorPublisher create_sensor_publisher(const string& sensor_type_name, const string& sensor_name, SensorBase::SensorType sensor_type, const string& topic_name, int QoS); diff --git a/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp b/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp index 2c9064fb9b..7b93529a08 100755 --- a/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp +++ b/ros2/src/airsim_ros_pkgs/src/airsim_ros_wrapper.cpp @@ -593,7 +593,7 @@ airsim_interfaces::msg::CarState AirsimROSWrapper::get_roscarstate_msg_from_car_ state_msg.rpm = car_state.rpm; state_msg.maxrpm = car_state.maxrpm; state_msg.handbrake = car_state.handbrake; - state_msg.header.stamp = airsim_timestamp_to_ros(car_state.timestamp); + state_msg.header.stamp = rclcpp::Time(car_state.timestamp); return state_msg; } @@ -730,7 +730,7 @@ sensor_msgs::msg::MagneticField AirsimROSWrapper::get_mag_msg_from_airsim(const std::copy(std::begin(mag_data.magnetic_field_covariance), std::end(mag_data.magnetic_field_covariance), std::begin(mag_msg.magnetic_field_covariance)); - mag_msg.header.stamp = airsim_timestamp_to_ros(mag_data.time_stamp); + mag_msg.header.stamp = rclcpp::Time(mag_data.time_stamp); return mag_msg; } @@ -739,7 +739,7 @@ sensor_msgs::msg::MagneticField AirsimROSWrapper::get_mag_msg_from_airsim(const sensor_msgs::msg::NavSatFix AirsimROSWrapper::get_gps_msg_from_airsim(const msr::airlib::GpsBase::Output& gps_data) const { sensor_msgs::msg::NavSatFix gps_msg; - gps_msg.header.stamp = airsim_timestamp_to_ros(gps_data.time_stamp); + gps_msg.header.stamp = rclcpp::Time(gps_data.time_stamp); gps_msg.latitude = gps_data.gnss.geo_point.latitude; gps_msg.longitude = gps_data.gnss.geo_point.longitude; gps_msg.altitude = gps_data.gnss.geo_point.altitude; @@ -754,7 +754,7 @@ sensor_msgs::msg::NavSatFix AirsimROSWrapper::get_gps_msg_from_airsim(const msr: sensor_msgs::msg::Range AirsimROSWrapper::get_range_from_airsim(const msr::airlib::DistanceSensorData& dist_data) const { sensor_msgs::msg::Range dist_msg; - dist_msg.header.stamp = airsim_timestamp_to_ros(dist_data.time_stamp); + dist_msg.header.stamp = rclcpp::Time(dist_data.time_stamp); dist_msg.range = dist_data.distance; dist_msg.min_range = dist_data.min_distance; dist_msg.max_range = dist_data.min_distance; @@ -765,7 +765,7 @@ sensor_msgs::msg::Range AirsimROSWrapper::get_range_from_airsim(const msr::airli airsim_interfaces::msg::Altimeter AirsimROSWrapper::get_altimeter_msg_from_airsim(const msr::airlib::BarometerBase::Output& alt_data) const { airsim_interfaces::msg::Altimeter alt_msg; - alt_msg.header.stamp = airsim_timestamp_to_ros(alt_data.time_stamp); + alt_msg.header.stamp = rclcpp::Time(alt_data.time_stamp); alt_msg.altitude = alt_data.altitude; alt_msg.pressure = alt_data.pressure; alt_msg.qnh = alt_data.qnh; @@ -778,7 +778,7 @@ sensor_msgs::msg::Imu AirsimROSWrapper::get_imu_msg_from_airsim(const msr::airli { sensor_msgs::msg::Imu imu_msg; // imu_msg.header.frame_id = "/airsim/odom_local_ned";// todo multiple drones - imu_msg.header.stamp = airsim_timestamp_to_ros(imu_data.time_stamp); + imu_msg.header.stamp = rclcpp::Time(imu_data.time_stamp); imu_msg.orientation.x = imu_data.orientation.x(); imu_msg.orientation.y = imu_data.orientation.y(); imu_msg.orientation.z = imu_data.orientation.z(); @@ -897,23 +897,6 @@ geometry_msgs::msg::Transform AirsimROSWrapper::get_transform_msg_from_airsim(co return transform; } -rclcpp::Time AirsimROSWrapper::chrono_timestamp_to_ros(const std::chrono::system_clock::time_point& stamp) const -{ - - auto dur = std::chrono::duration_cast(stamp.time_since_epoch()); - rclcpp::Time cur_time(dur.count()); - return cur_time; -} - -rclcpp::Time AirsimROSWrapper::airsim_timestamp_to_ros(const msr::airlib::TTimePoint& stamp) const -{ - // airsim appears to use chrono::system_clock with nanosecond precision - //std::chrono::nanoseconds dur(stamp); - //std::chrono::time_point tp(dur); - //rclcpp::Time cur_time = chrono_timestamp_to_ros(tp); - return rclcpp::Time(stamp); -} - void AirsimROSWrapper::drone_state_timer_cb() { try { @@ -962,7 +945,7 @@ rclcpp::Time AirsimROSWrapper::update_state() //should be easier way to get the sim time through API, something like: //msr::airlib::Environment::State env = airsim_client_->simGetGroundTruthEnvironment(""); - //curr_ros_time = airsim_timestamp_to_ros(env.clock().nowNanos()); + //curr_ros_time = rclcpp::Time(env.clock().nowNanos()); // iterate over drones for (auto& vehicle_name_ptr_pair : vehicle_name_ptr_map_) { @@ -978,7 +961,7 @@ rclcpp::Time AirsimROSWrapper::update_state() auto rpc = static_cast(airsim_client_.get()); drone->curr_drone_state_ = rpc->getMultirotorState(vehicle_ros->vehicle_name_); - vehicle_time = airsim_timestamp_to_ros(drone->curr_drone_state_.timestamp); + vehicle_time = rclcpp::Time(drone->curr_drone_state_.timestamp); if (!got_sim_time) { curr_ros_time = vehicle_time; got_sim_time = true; @@ -994,7 +977,7 @@ rclcpp::Time AirsimROSWrapper::update_state() auto rpc = static_cast(airsim_client_.get()); car->curr_car_state_ = rpc->getCarState(vehicle_ros->vehicle_name_); - vehicle_time = airsim_timestamp_to_ros(car->curr_car_state_.timestamp); + vehicle_time = rclcpp::Time(car->curr_car_state_.timestamp); if (!got_sim_time) { curr_ros_time = vehicle_time; got_sim_time = true; @@ -1285,7 +1268,7 @@ std::shared_ptr AirsimROSWrapper::get_img_msg_from_resp std::shared_ptr img_msg_ptr = std::make_shared(); img_msg_ptr->data = img_response.image_data_uint8; img_msg_ptr->step = img_response.image_data_uint8.size() / img_response.height; - img_msg_ptr->header.stamp = airsim_timestamp_to_ros(img_response.time_stamp); + img_msg_ptr->header.stamp = rclcpp::Time(img_response.time_stamp); img_msg_ptr->header.frame_id = frame_id; img_msg_ptr->height = img_response.height; img_msg_ptr->width = img_response.width; @@ -1305,7 +1288,7 @@ std::shared_ptr AirsimROSWrapper::get_depth_img_msg_fro // hence the dependency on opencv and cv_bridge. however, this is an extremely fast op, so no big deal. cv::Mat depth_img = manual_decode_depth(img_response); std::shared_ptr depth_img_msg = cv_bridge::CvImage(std_msgs::msg::Header(), "32FC1", depth_img).toImageMsg(); - depth_img_msg->header.stamp = airsim_timestamp_to_ros(img_response.time_stamp); + depth_img_msg->header.stamp = rclcpp::Time(img_response.time_stamp); depth_img_msg->header.frame_id = frame_id; return depth_img_msg; } @@ -1344,7 +1327,7 @@ void AirsimROSWrapper::process_and_publish_img_response(const std::vectorpublish(camera_info_msg_vec_[img_response_idx_internal]); // DepthPlanar / DepthPerspective / DepthVis / DisparityNormalized @@ -1370,7 +1353,7 @@ void AirsimROSWrapper::publish_camera_tf(const ImageResponse& img_response, cons { unused(ros_time); geometry_msgs::msg::TransformStamped cam_tf_body_msg; - cam_tf_body_msg.header.stamp = airsim_timestamp_to_ros(img_response.time_stamp); + cam_tf_body_msg.header.stamp = rclcpp::Time(img_response.time_stamp); cam_tf_body_msg.header.frame_id = frame_id; cam_tf_body_msg.child_frame_id = child_frame_id + "_body"; cam_tf_body_msg.transform = get_transform_msg_from_airsim(img_response.camera_position, img_response.camera_orientation); @@ -1380,7 +1363,7 @@ void AirsimROSWrapper::publish_camera_tf(const ImageResponse& img_response, cons } geometry_msgs::msg::TransformStamped cam_tf_optical_msg; - cam_tf_optical_msg.header.stamp = airsim_timestamp_to_ros(img_response.time_stamp); + cam_tf_optical_msg.header.stamp = rclcpp::Time(img_response.time_stamp); cam_tf_optical_msg.header.frame_id = frame_id; cam_tf_optical_msg.child_frame_id = child_frame_id + "_optical"; cam_tf_optical_msg.transform.translation = cam_tf_body_msg.transform.translation; From a89d6041b09173003c6b12dad2b89be2cd659ee6 Mon Sep 17 00:00:00 2001 From: zimmy87 Date: Tue, 29 Mar 2022 08:54:03 -0700 Subject: [PATCH 07/84] fix typedef declaration shadow and clang-format --- AirLib/include/common/common_utils/json.hpp | 20870 +++++++++--------- Unreal/Plugins/AirSim/Source/PawnSimApi.cpp | 1 - 2 files changed, 10095 insertions(+), 10776 deletions(-) diff --git a/AirLib/include/common/common_utils/json.hpp b/AirLib/include/common/common_utils/json.hpp index ddf9b50d85..ced6cd59f0 100644 --- a/AirLib/include/common/common_utils/json.hpp +++ b/AirLib/include/common/common_utils/json.hpp @@ -44,8 +44,8 @@ SOFTWARE. #include // hash, less #include // initializer_list #ifndef JSON_NO_IO - #include // istream, ostream -#endif // JSON_NO_IO +#include // istream, ostream +#endif // JSON_NO_IO #include // random_access_iterator_tag #include // unique_ptr #include // accumulate @@ -55,13 +55,11 @@ SOFTWARE. // #include - #include #include // #include - #include // transform #include // array #include // forward_list @@ -76,7 +74,6 @@ SOFTWARE. // #include - #include // exception #include // runtime_error #include // to_string @@ -84,7 +81,6 @@ SOFTWARE. // #include - #include // array #include // size_t #include // uint8_t @@ -94,11 +90,11 @@ namespace nlohmann { namespace detail { -/////////////////////////// -// JSON type enumeration // -/////////////////////////// + /////////////////////////// + // JSON type enumeration // + /////////////////////////// -/*! + /*! @brief the JSON type enumeration This enumeration collects the different JSON types. It is internally used to distinguish the stored values, and the functions @ref basic_json::is_null(), @@ -118,21 +114,21 @@ approximate integers which do not fit in the limits of their respective type. value with the default value for a given type @since version 1.0.0 */ -enum class value_t : std::uint8_t -{ - null, ///< null value - object, ///< object (unordered set of name/value pairs) - array, ///< array (ordered collection of values) - string, ///< string value - boolean, ///< boolean value - number_integer, ///< number value (signed integer) - number_unsigned, ///< number value (unsigned integer) - number_float, ///< number value (floating-point) - binary, ///< binary array (ordered collection of bytes) - discarded ///< discarded by the parser callback function -}; + enum class value_t : std::uint8_t + { + null, ///< null value + object, ///< object (unordered set of name/value pairs) + array, ///< array (ordered collection of values) + string, ///< string value + boolean, ///< boolean value + number_integer, ///< number value (signed integer) + number_unsigned, ///< number value (unsigned integer) + number_float, ///< number value (floating-point) + binary, ///< binary array (ordered collection of bytes) + discarded ///< discarded by the parser callback function + }; -/*! + /*! @brief comparison operator for JSON types Returns an ordering that is similar to Python: - order: null < boolean < number < object < array < string < binary @@ -143,33 +139,27 @@ Returns an ordering that is similar to Python: be surprising behavior in a JSON file. @since version 1.0.0 */ -inline bool operator<(const value_t lhs, const value_t rhs) noexcept -{ - static constexpr std::array order = {{ - 0 /* null */, 3 /* object */, 4 /* array */, 5 /* string */, - 1 /* boolean */, 2 /* integer */, 2 /* unsigned */, 2 /* float */, - 6 /* binary */ - } - }; + inline bool operator<(const value_t lhs, const value_t rhs) noexcept + { + static constexpr std::array order = { { + 0 /* null */, 3 /* object */, 4 /* array */, 5 /* string */, 1 /* boolean */, 2 /* integer */, 2 /* unsigned */, 2 /* float */, 6 /* binary */ + } }; - const auto l_index = static_cast(lhs); - const auto r_index = static_cast(rhs); - return l_index < order.size() && r_index < order.size() && order[l_index] < order[r_index]; -} -} // namespace detail -} // namespace nlohmann + const auto l_index = static_cast(lhs); + const auto r_index = static_cast(rhs); + return l_index < order.size() && r_index < order.size() && order[l_index] < order[r_index]; + } +} // namespace detail +} // namespace nlohmann // #include - #include // #include - #include // declval, pair // #include - /* Hedley - https://nemequ.github.io/hedley * Created by Evan Nemerson * @@ -184,2030 +174,1949 @@ inline bool operator<(const value_t lhs, const value_t rhs) noexcept #if !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < 15) #if defined(JSON_HEDLEY_VERSION) - #undef JSON_HEDLEY_VERSION +#undef JSON_HEDLEY_VERSION #endif #define JSON_HEDLEY_VERSION 15 #if defined(JSON_HEDLEY_STRINGIFY_EX) - #undef JSON_HEDLEY_STRINGIFY_EX +#undef JSON_HEDLEY_STRINGIFY_EX #endif #define JSON_HEDLEY_STRINGIFY_EX(x) #x #if defined(JSON_HEDLEY_STRINGIFY) - #undef JSON_HEDLEY_STRINGIFY +#undef JSON_HEDLEY_STRINGIFY #endif #define JSON_HEDLEY_STRINGIFY(x) JSON_HEDLEY_STRINGIFY_EX(x) #if defined(JSON_HEDLEY_CONCAT_EX) - #undef JSON_HEDLEY_CONCAT_EX +#undef JSON_HEDLEY_CONCAT_EX #endif -#define JSON_HEDLEY_CONCAT_EX(a,b) a##b +#define JSON_HEDLEY_CONCAT_EX(a, b) a##b #if defined(JSON_HEDLEY_CONCAT) - #undef JSON_HEDLEY_CONCAT +#undef JSON_HEDLEY_CONCAT #endif -#define JSON_HEDLEY_CONCAT(a,b) JSON_HEDLEY_CONCAT_EX(a,b) +#define JSON_HEDLEY_CONCAT(a, b) JSON_HEDLEY_CONCAT_EX(a, b) #if defined(JSON_HEDLEY_CONCAT3_EX) - #undef JSON_HEDLEY_CONCAT3_EX +#undef JSON_HEDLEY_CONCAT3_EX #endif -#define JSON_HEDLEY_CONCAT3_EX(a,b,c) a##b##c +#define JSON_HEDLEY_CONCAT3_EX(a, b, c) a##b##c #if defined(JSON_HEDLEY_CONCAT3) - #undef JSON_HEDLEY_CONCAT3 +#undef JSON_HEDLEY_CONCAT3 #endif -#define JSON_HEDLEY_CONCAT3(a,b,c) JSON_HEDLEY_CONCAT3_EX(a,b,c) +#define JSON_HEDLEY_CONCAT3(a, b, c) JSON_HEDLEY_CONCAT3_EX(a, b, c) #if defined(JSON_HEDLEY_VERSION_ENCODE) - #undef JSON_HEDLEY_VERSION_ENCODE +#undef JSON_HEDLEY_VERSION_ENCODE #endif -#define JSON_HEDLEY_VERSION_ENCODE(major,minor,revision) (((major) * 1000000) + ((minor) * 1000) + (revision)) +#define JSON_HEDLEY_VERSION_ENCODE(major, minor, revision) (((major)*1000000) + ((minor)*1000) + (revision)) #if defined(JSON_HEDLEY_VERSION_DECODE_MAJOR) - #undef JSON_HEDLEY_VERSION_DECODE_MAJOR +#undef JSON_HEDLEY_VERSION_DECODE_MAJOR #endif #define JSON_HEDLEY_VERSION_DECODE_MAJOR(version) ((version) / 1000000) #if defined(JSON_HEDLEY_VERSION_DECODE_MINOR) - #undef JSON_HEDLEY_VERSION_DECODE_MINOR +#undef JSON_HEDLEY_VERSION_DECODE_MINOR #endif #define JSON_HEDLEY_VERSION_DECODE_MINOR(version) (((version) % 1000000) / 1000) #if defined(JSON_HEDLEY_VERSION_DECODE_REVISION) - #undef JSON_HEDLEY_VERSION_DECODE_REVISION +#undef JSON_HEDLEY_VERSION_DECODE_REVISION #endif #define JSON_HEDLEY_VERSION_DECODE_REVISION(version) ((version) % 1000) #if defined(JSON_HEDLEY_GNUC_VERSION) - #undef JSON_HEDLEY_GNUC_VERSION +#undef JSON_HEDLEY_GNUC_VERSION #endif #if defined(__GNUC__) && defined(__GNUC_PATCHLEVEL__) - #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) +#define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) #elif defined(__GNUC__) - #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, 0) +#define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, 0) #endif #if defined(JSON_HEDLEY_GNUC_VERSION_CHECK) - #undef JSON_HEDLEY_GNUC_VERSION_CHECK +#undef JSON_HEDLEY_GNUC_VERSION_CHECK #endif #if defined(JSON_HEDLEY_GNUC_VERSION) - #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GNUC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_GNUC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_MSVC_VERSION) - #undef JSON_HEDLEY_MSVC_VERSION +#undef JSON_HEDLEY_MSVC_VERSION #endif #if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 140000000) && !defined(__ICL) - #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 10000000, (_MSC_FULL_VER % 10000000) / 100000, (_MSC_FULL_VER % 100000) / 100) +#define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 10000000, (_MSC_FULL_VER % 10000000) / 100000, (_MSC_FULL_VER % 100000) / 100) #elif defined(_MSC_FULL_VER) && !defined(__ICL) - #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 1000000, (_MSC_FULL_VER % 1000000) / 10000, (_MSC_FULL_VER % 10000) / 10) +#define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 1000000, (_MSC_FULL_VER % 1000000) / 10000, (_MSC_FULL_VER % 10000) / 10) #elif defined(_MSC_VER) && !defined(__ICL) - #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_VER / 100, _MSC_VER % 100, 0) +#define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_VER / 100, _MSC_VER % 100, 0) #endif #if defined(JSON_HEDLEY_MSVC_VERSION_CHECK) - #undef JSON_HEDLEY_MSVC_VERSION_CHECK +#undef JSON_HEDLEY_MSVC_VERSION_CHECK #endif #if !defined(JSON_HEDLEY_MSVC_VERSION) - #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_MSVC_VERSION_CHECK(major, minor, patch) (0) #elif defined(_MSC_VER) && (_MSC_VER >= 1400) - #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 10000000) + (minor * 100000) + (patch))) +#define JSON_HEDLEY_MSVC_VERSION_CHECK(major, minor, patch) (_MSC_FULL_VER >= ((major * 10000000) + (minor * 100000) + (patch))) #elif defined(_MSC_VER) && (_MSC_VER >= 1200) - #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch))) +#define JSON_HEDLEY_MSVC_VERSION_CHECK(major, minor, patch) (_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch))) #else - #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_VER >= ((major * 100) + (minor))) +#define JSON_HEDLEY_MSVC_VERSION_CHECK(major, minor, patch) (_MSC_VER >= ((major * 100) + (minor))) #endif #if defined(JSON_HEDLEY_INTEL_VERSION) - #undef JSON_HEDLEY_INTEL_VERSION +#undef JSON_HEDLEY_INTEL_VERSION #endif #if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && !defined(__ICL) - #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, __INTEL_COMPILER_UPDATE) +#define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, __INTEL_COMPILER_UPDATE) #elif defined(__INTEL_COMPILER) && !defined(__ICL) - #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, 0) +#define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, 0) #endif #if defined(JSON_HEDLEY_INTEL_VERSION_CHECK) - #undef JSON_HEDLEY_INTEL_VERSION_CHECK +#undef JSON_HEDLEY_INTEL_VERSION_CHECK #endif #if defined(JSON_HEDLEY_INTEL_VERSION) - #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_INTEL_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_INTEL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_INTEL_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_INTEL_CL_VERSION) - #undef JSON_HEDLEY_INTEL_CL_VERSION +#undef JSON_HEDLEY_INTEL_CL_VERSION #endif #if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && defined(__ICL) - #define JSON_HEDLEY_INTEL_CL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER, __INTEL_COMPILER_UPDATE, 0) +#define JSON_HEDLEY_INTEL_CL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER, __INTEL_COMPILER_UPDATE, 0) #endif #if defined(JSON_HEDLEY_INTEL_CL_VERSION_CHECK) - #undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK +#undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK #endif #if defined(JSON_HEDLEY_INTEL_CL_VERSION) - #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_CL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_INTEL_CL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_PGI_VERSION) - #undef JSON_HEDLEY_PGI_VERSION +#undef JSON_HEDLEY_PGI_VERSION #endif #if defined(__PGI) && defined(__PGIC__) && defined(__PGIC_MINOR__) && defined(__PGIC_PATCHLEVEL__) - #define JSON_HEDLEY_PGI_VERSION JSON_HEDLEY_VERSION_ENCODE(__PGIC__, __PGIC_MINOR__, __PGIC_PATCHLEVEL__) +#define JSON_HEDLEY_PGI_VERSION JSON_HEDLEY_VERSION_ENCODE(__PGIC__, __PGIC_MINOR__, __PGIC_PATCHLEVEL__) #endif #if defined(JSON_HEDLEY_PGI_VERSION_CHECK) - #undef JSON_HEDLEY_PGI_VERSION_CHECK +#undef JSON_HEDLEY_PGI_VERSION_CHECK #endif #if defined(JSON_HEDLEY_PGI_VERSION) - #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PGI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_PGI_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_PGI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_PGI_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_SUNPRO_VERSION) - #undef JSON_HEDLEY_SUNPRO_VERSION +#undef JSON_HEDLEY_SUNPRO_VERSION #endif #if defined(__SUNPRO_C) && (__SUNPRO_C > 0x1000) - #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_C >> 16) & 0xf) * 10) + ((__SUNPRO_C >> 12) & 0xf), (((__SUNPRO_C >> 8) & 0xf) * 10) + ((__SUNPRO_C >> 4) & 0xf), (__SUNPRO_C & 0xf) * 10) +#define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_C >> 16) & 0xf) * 10) + ((__SUNPRO_C >> 12) & 0xf), (((__SUNPRO_C >> 8) & 0xf) * 10) + ((__SUNPRO_C >> 4) & 0xf), (__SUNPRO_C & 0xf) * 10) #elif defined(__SUNPRO_C) - #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_C >> 8) & 0xf, (__SUNPRO_C >> 4) & 0xf, (__SUNPRO_C) & 0xf) +#define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_C >> 8) & 0xf, (__SUNPRO_C >> 4) & 0xf, (__SUNPRO_C)&0xf) #elif defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x1000) - #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_CC >> 16) & 0xf) * 10) + ((__SUNPRO_CC >> 12) & 0xf), (((__SUNPRO_CC >> 8) & 0xf) * 10) + ((__SUNPRO_CC >> 4) & 0xf), (__SUNPRO_CC & 0xf) * 10) +#define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_CC >> 16) & 0xf) * 10) + ((__SUNPRO_CC >> 12) & 0xf), (((__SUNPRO_CC >> 8) & 0xf) * 10) + ((__SUNPRO_CC >> 4) & 0xf), (__SUNPRO_CC & 0xf) * 10) #elif defined(__SUNPRO_CC) - #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_CC >> 8) & 0xf, (__SUNPRO_CC >> 4) & 0xf, (__SUNPRO_CC) & 0xf) +#define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_CC >> 8) & 0xf, (__SUNPRO_CC >> 4) & 0xf, (__SUNPRO_CC)&0xf) #endif #if defined(JSON_HEDLEY_SUNPRO_VERSION_CHECK) - #undef JSON_HEDLEY_SUNPRO_VERSION_CHECK +#undef JSON_HEDLEY_SUNPRO_VERSION_CHECK #endif #if defined(JSON_HEDLEY_SUNPRO_VERSION) - #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_SUNPRO_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_SUNPRO_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION) - #undef JSON_HEDLEY_EMSCRIPTEN_VERSION +#undef JSON_HEDLEY_EMSCRIPTEN_VERSION #endif #if defined(__EMSCRIPTEN__) - #define JSON_HEDLEY_EMSCRIPTEN_VERSION JSON_HEDLEY_VERSION_ENCODE(__EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__) +#define JSON_HEDLEY_EMSCRIPTEN_VERSION JSON_HEDLEY_VERSION_ENCODE(__EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__) #endif #if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK) - #undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK +#undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK #endif #if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION) - #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_EMSCRIPTEN_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_EMSCRIPTEN_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_ARM_VERSION) - #undef JSON_HEDLEY_ARM_VERSION +#undef JSON_HEDLEY_ARM_VERSION #endif #if defined(__CC_ARM) && defined(__ARMCOMPILER_VERSION) - #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCOMPILER_VERSION / 1000000, (__ARMCOMPILER_VERSION % 1000000) / 10000, (__ARMCOMPILER_VERSION % 10000) / 100) +#define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCOMPILER_VERSION / 1000000, (__ARMCOMPILER_VERSION % 1000000) / 10000, (__ARMCOMPILER_VERSION % 10000) / 100) #elif defined(__CC_ARM) && defined(__ARMCC_VERSION) - #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCC_VERSION / 1000000, (__ARMCC_VERSION % 1000000) / 10000, (__ARMCC_VERSION % 10000) / 100) +#define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCC_VERSION / 1000000, (__ARMCC_VERSION % 1000000) / 10000, (__ARMCC_VERSION % 10000) / 100) #endif #if defined(JSON_HEDLEY_ARM_VERSION_CHECK) - #undef JSON_HEDLEY_ARM_VERSION_CHECK +#undef JSON_HEDLEY_ARM_VERSION_CHECK #endif #if defined(JSON_HEDLEY_ARM_VERSION) - #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_ARM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_ARM_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_ARM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_ARM_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_IBM_VERSION) - #undef JSON_HEDLEY_IBM_VERSION +#undef JSON_HEDLEY_IBM_VERSION #endif #if defined(__ibmxl__) - #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ibmxl_version__, __ibmxl_release__, __ibmxl_modification__) +#define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ibmxl_version__, __ibmxl_release__, __ibmxl_modification__) #elif defined(__xlC__) && defined(__xlC_ver__) - #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, (__xlC_ver__ >> 8) & 0xff) +#define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, (__xlC_ver__ >> 8) & 0xff) #elif defined(__xlC__) - #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, 0) +#define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, 0) #endif #if defined(JSON_HEDLEY_IBM_VERSION_CHECK) - #undef JSON_HEDLEY_IBM_VERSION_CHECK +#undef JSON_HEDLEY_IBM_VERSION_CHECK #endif #if defined(JSON_HEDLEY_IBM_VERSION) - #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IBM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_IBM_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_IBM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_IBM_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_TI_VERSION) - #undef JSON_HEDLEY_TI_VERSION -#endif -#if \ - defined(__TI_COMPILER_VERSION__) && \ - ( \ - defined(__TMS470__) || defined(__TI_ARM__) || \ - defined(__MSP430__) || \ - defined(__TMS320C2000__) \ - ) +#undef JSON_HEDLEY_TI_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && \ + (defined(__TMS470__) || defined(__TI_ARM__) || \ + defined(__MSP430__) || \ + defined(__TMS320C2000__)) #if (__TI_COMPILER_VERSION__ >= 16000000) - #define JSON_HEDLEY_TI_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#define JSON_HEDLEY_TI_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) #endif #endif #if defined(JSON_HEDLEY_TI_VERSION_CHECK) - #undef JSON_HEDLEY_TI_VERSION_CHECK +#undef JSON_HEDLEY_TI_VERSION_CHECK #endif #if defined(JSON_HEDLEY_TI_VERSION) - #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_TI_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_TI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_TI_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_TI_CL2000_VERSION) - #undef JSON_HEDLEY_TI_CL2000_VERSION +#undef JSON_HEDLEY_TI_CL2000_VERSION #endif #if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C2000__) - #define JSON_HEDLEY_TI_CL2000_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#define JSON_HEDLEY_TI_CL2000_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) #endif #if defined(JSON_HEDLEY_TI_CL2000_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK #endif #if defined(JSON_HEDLEY_TI_CL2000_VERSION) - #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL2000_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_TI_CL2000_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_TI_CL430_VERSION) - #undef JSON_HEDLEY_TI_CL430_VERSION +#undef JSON_HEDLEY_TI_CL430_VERSION #endif #if defined(__TI_COMPILER_VERSION__) && defined(__MSP430__) - #define JSON_HEDLEY_TI_CL430_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#define JSON_HEDLEY_TI_CL430_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) #endif #if defined(JSON_HEDLEY_TI_CL430_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CL430_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL430_VERSION_CHECK #endif #if defined(JSON_HEDLEY_TI_CL430_VERSION) - #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL430_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_TI_CL430_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_TI_ARMCL_VERSION) - #undef JSON_HEDLEY_TI_ARMCL_VERSION +#undef JSON_HEDLEY_TI_ARMCL_VERSION #endif #if defined(__TI_COMPILER_VERSION__) && (defined(__TMS470__) || defined(__TI_ARM__)) - #define JSON_HEDLEY_TI_ARMCL_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#define JSON_HEDLEY_TI_ARMCL_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) #endif #if defined(JSON_HEDLEY_TI_ARMCL_VERSION_CHECK) - #undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK +#undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK #endif #if defined(JSON_HEDLEY_TI_ARMCL_VERSION) - #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_ARMCL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_TI_ARMCL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_TI_CL6X_VERSION) - #undef JSON_HEDLEY_TI_CL6X_VERSION +#undef JSON_HEDLEY_TI_CL6X_VERSION #endif #if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C6X__) - #define JSON_HEDLEY_TI_CL6X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#define JSON_HEDLEY_TI_CL6X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) #endif #if defined(JSON_HEDLEY_TI_CL6X_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK #endif #if defined(JSON_HEDLEY_TI_CL6X_VERSION) - #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL6X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_TI_CL6X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_TI_CL7X_VERSION) - #undef JSON_HEDLEY_TI_CL7X_VERSION +#undef JSON_HEDLEY_TI_CL7X_VERSION #endif #if defined(__TI_COMPILER_VERSION__) && defined(__C7000__) - #define JSON_HEDLEY_TI_CL7X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#define JSON_HEDLEY_TI_CL7X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) #endif #if defined(JSON_HEDLEY_TI_CL7X_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK #endif #if defined(JSON_HEDLEY_TI_CL7X_VERSION) - #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL7X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_TI_CL7X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_TI_CLPRU_VERSION) - #undef JSON_HEDLEY_TI_CLPRU_VERSION +#undef JSON_HEDLEY_TI_CLPRU_VERSION #endif #if defined(__TI_COMPILER_VERSION__) && defined(__PRU__) - #define JSON_HEDLEY_TI_CLPRU_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#define JSON_HEDLEY_TI_CLPRU_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) #endif #if defined(JSON_HEDLEY_TI_CLPRU_VERSION_CHECK) - #undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK +#undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK #endif #if defined(JSON_HEDLEY_TI_CLPRU_VERSION) - #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CLPRU_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_TI_CLPRU_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_CRAY_VERSION) - #undef JSON_HEDLEY_CRAY_VERSION +#undef JSON_HEDLEY_CRAY_VERSION #endif #if defined(_CRAYC) - #if defined(_RELEASE_PATCHLEVEL) - #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, _RELEASE_PATCHLEVEL) - #else - #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, 0) - #endif +#if defined(_RELEASE_PATCHLEVEL) +#define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, _RELEASE_PATCHLEVEL) +#else +#define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, 0) +#endif #endif #if defined(JSON_HEDLEY_CRAY_VERSION_CHECK) - #undef JSON_HEDLEY_CRAY_VERSION_CHECK +#undef JSON_HEDLEY_CRAY_VERSION_CHECK #endif #if defined(JSON_HEDLEY_CRAY_VERSION) - #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_CRAY_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_CRAY_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_CRAY_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_CRAY_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_IAR_VERSION) - #undef JSON_HEDLEY_IAR_VERSION +#undef JSON_HEDLEY_IAR_VERSION #endif #if defined(__IAR_SYSTEMS_ICC__) - #if __VER__ > 1000 - #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE((__VER__ / 1000000), ((__VER__ / 1000) % 1000), (__VER__ % 1000)) - #else - #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE(__VER__ / 100, __VER__ % 100, 0) - #endif +#if __VER__ > 1000 +#define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE((__VER__ / 1000000), ((__VER__ / 1000) % 1000), (__VER__ % 1000)) +#else +#define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE(__VER__ / 100, __VER__ % 100, 0) +#endif #endif #if defined(JSON_HEDLEY_IAR_VERSION_CHECK) - #undef JSON_HEDLEY_IAR_VERSION_CHECK +#undef JSON_HEDLEY_IAR_VERSION_CHECK #endif #if defined(JSON_HEDLEY_IAR_VERSION) - #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IAR_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_IAR_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_IAR_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_IAR_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_TINYC_VERSION) - #undef JSON_HEDLEY_TINYC_VERSION +#undef JSON_HEDLEY_TINYC_VERSION #endif #if defined(__TINYC__) - #define JSON_HEDLEY_TINYC_VERSION JSON_HEDLEY_VERSION_ENCODE(__TINYC__ / 1000, (__TINYC__ / 100) % 10, __TINYC__ % 100) +#define JSON_HEDLEY_TINYC_VERSION JSON_HEDLEY_VERSION_ENCODE(__TINYC__ / 1000, (__TINYC__ / 100) % 10, __TINYC__ % 100) #endif #if defined(JSON_HEDLEY_TINYC_VERSION_CHECK) - #undef JSON_HEDLEY_TINYC_VERSION_CHECK +#undef JSON_HEDLEY_TINYC_VERSION_CHECK #endif #if defined(JSON_HEDLEY_TINYC_VERSION) - #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TINYC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_TINYC_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_TINYC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_TINYC_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_DMC_VERSION) - #undef JSON_HEDLEY_DMC_VERSION +#undef JSON_HEDLEY_DMC_VERSION #endif #if defined(__DMC__) - #define JSON_HEDLEY_DMC_VERSION JSON_HEDLEY_VERSION_ENCODE(__DMC__ >> 8, (__DMC__ >> 4) & 0xf, __DMC__ & 0xf) +#define JSON_HEDLEY_DMC_VERSION JSON_HEDLEY_VERSION_ENCODE(__DMC__ >> 8, (__DMC__ >> 4) & 0xf, __DMC__ & 0xf) #endif #if defined(JSON_HEDLEY_DMC_VERSION_CHECK) - #undef JSON_HEDLEY_DMC_VERSION_CHECK +#undef JSON_HEDLEY_DMC_VERSION_CHECK #endif #if defined(JSON_HEDLEY_DMC_VERSION) - #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_DMC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_DMC_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_DMC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_DMC_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_COMPCERT_VERSION) - #undef JSON_HEDLEY_COMPCERT_VERSION +#undef JSON_HEDLEY_COMPCERT_VERSION #endif #if defined(__COMPCERT_VERSION__) - #define JSON_HEDLEY_COMPCERT_VERSION JSON_HEDLEY_VERSION_ENCODE(__COMPCERT_VERSION__ / 10000, (__COMPCERT_VERSION__ / 100) % 100, __COMPCERT_VERSION__ % 100) +#define JSON_HEDLEY_COMPCERT_VERSION JSON_HEDLEY_VERSION_ENCODE(__COMPCERT_VERSION__ / 10000, (__COMPCERT_VERSION__ / 100) % 100, __COMPCERT_VERSION__ % 100) #endif #if defined(JSON_HEDLEY_COMPCERT_VERSION_CHECK) - #undef JSON_HEDLEY_COMPCERT_VERSION_CHECK +#undef JSON_HEDLEY_COMPCERT_VERSION_CHECK #endif #if defined(JSON_HEDLEY_COMPCERT_VERSION) - #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_COMPCERT_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_COMPCERT_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_PELLES_VERSION) - #undef JSON_HEDLEY_PELLES_VERSION +#undef JSON_HEDLEY_PELLES_VERSION #endif #if defined(__POCC__) - #define JSON_HEDLEY_PELLES_VERSION JSON_HEDLEY_VERSION_ENCODE(__POCC__ / 100, __POCC__ % 100, 0) +#define JSON_HEDLEY_PELLES_VERSION JSON_HEDLEY_VERSION_ENCODE(__POCC__ / 100, __POCC__ % 100, 0) #endif #if defined(JSON_HEDLEY_PELLES_VERSION_CHECK) - #undef JSON_HEDLEY_PELLES_VERSION_CHECK +#undef JSON_HEDLEY_PELLES_VERSION_CHECK #endif #if defined(JSON_HEDLEY_PELLES_VERSION) - #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PELLES_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_PELLES_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_PELLES_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_PELLES_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_MCST_LCC_VERSION) - #undef JSON_HEDLEY_MCST_LCC_VERSION +#undef JSON_HEDLEY_MCST_LCC_VERSION #endif #if defined(__LCC__) && defined(__LCC_MINOR__) - #define JSON_HEDLEY_MCST_LCC_VERSION JSON_HEDLEY_VERSION_ENCODE(__LCC__ / 100, __LCC__ % 100, __LCC_MINOR__) +#define JSON_HEDLEY_MCST_LCC_VERSION JSON_HEDLEY_VERSION_ENCODE(__LCC__ / 100, __LCC__ % 100, __LCC_MINOR__) #endif #if defined(JSON_HEDLEY_MCST_LCC_VERSION_CHECK) - #undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK +#undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK #endif #if defined(JSON_HEDLEY_MCST_LCC_VERSION) - #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_MCST_LCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_MCST_LCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_GCC_VERSION) - #undef JSON_HEDLEY_GCC_VERSION -#endif -#if \ - defined(JSON_HEDLEY_GNUC_VERSION) && \ - !defined(__clang__) && \ - !defined(JSON_HEDLEY_INTEL_VERSION) && \ - !defined(JSON_HEDLEY_PGI_VERSION) && \ - !defined(JSON_HEDLEY_ARM_VERSION) && \ - !defined(JSON_HEDLEY_CRAY_VERSION) && \ - !defined(JSON_HEDLEY_TI_VERSION) && \ - !defined(JSON_HEDLEY_TI_ARMCL_VERSION) && \ - !defined(JSON_HEDLEY_TI_CL430_VERSION) && \ +#undef JSON_HEDLEY_GCC_VERSION +#endif +#if defined(JSON_HEDLEY_GNUC_VERSION) && \ + !defined(__clang__) && \ + !defined(JSON_HEDLEY_INTEL_VERSION) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_ARM_VERSION) && \ + !defined(JSON_HEDLEY_CRAY_VERSION) && \ + !defined(JSON_HEDLEY_TI_VERSION) && \ + !defined(JSON_HEDLEY_TI_ARMCL_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL430_VERSION) && \ !defined(JSON_HEDLEY_TI_CL2000_VERSION) && \ - !defined(JSON_HEDLEY_TI_CL6X_VERSION) && \ - !defined(JSON_HEDLEY_TI_CL7X_VERSION) && \ - !defined(JSON_HEDLEY_TI_CLPRU_VERSION) && \ - !defined(__COMPCERT__) && \ + !defined(JSON_HEDLEY_TI_CL6X_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL7X_VERSION) && \ + !defined(JSON_HEDLEY_TI_CLPRU_VERSION) && \ + !defined(__COMPCERT__) && \ !defined(JSON_HEDLEY_MCST_LCC_VERSION) - #define JSON_HEDLEY_GCC_VERSION JSON_HEDLEY_GNUC_VERSION +#define JSON_HEDLEY_GCC_VERSION JSON_HEDLEY_GNUC_VERSION #endif #if defined(JSON_HEDLEY_GCC_VERSION_CHECK) - #undef JSON_HEDLEY_GCC_VERSION_CHECK +#undef JSON_HEDLEY_GCC_VERSION_CHECK #endif #if defined(JSON_HEDLEY_GCC_VERSION) - #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#define JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) (JSON_HEDLEY_GCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) #else - #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) (0) #endif #if defined(JSON_HEDLEY_HAS_ATTRIBUTE) - #undef JSON_HEDLEY_HAS_ATTRIBUTE -#endif -#if \ - defined(__has_attribute) && \ - ( \ - (!defined(JSON_HEDLEY_IAR_VERSION) || JSON_HEDLEY_IAR_VERSION_CHECK(8,5,9)) \ - ) -# define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) __has_attribute(attribute) +#undef JSON_HEDLEY_HAS_ATTRIBUTE +#endif +#if defined(__has_attribute) && \ + ((!defined(JSON_HEDLEY_IAR_VERSION) || JSON_HEDLEY_IAR_VERSION_CHECK(8, 5, 9))) +#define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) __has_attribute(attribute) #else -# define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) (0) +#define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) (0) #endif #if defined(JSON_HEDLEY_GNUC_HAS_ATTRIBUTE) - #undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE #endif #if defined(__has_attribute) - #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) +#define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute, major, minor, patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) #else - #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute, major, minor, patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_GCC_HAS_ATTRIBUTE) - #undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE #endif #if defined(__has_attribute) - #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) +#define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute, major, minor, patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) #else - #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute, major, minor, patch) JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE) - #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE #endif -#if \ - defined(__has_cpp_attribute) && \ - defined(__cplusplus) && \ - (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) __has_cpp_attribute(attribute) +#if defined(__has_cpp_attribute) && \ + defined(__cplusplus) && \ + (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 15, 0)) +#define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) __has_cpp_attribute(attribute) #else - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) (0) +#define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) (0) #endif #if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS) - #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS +#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS #endif #if !defined(__cplusplus) || !defined(__has_cpp_attribute) - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0) -#elif \ - !defined(JSON_HEDLEY_PGI_VERSION) && \ - !defined(JSON_HEDLEY_IAR_VERSION) && \ - (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) && \ - (!defined(JSON_HEDLEY_MSVC_VERSION) || JSON_HEDLEY_MSVC_VERSION_CHECK(19,20,0)) - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(ns::attribute) +#define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns, attribute) (0) +#elif !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_IAR_VERSION) && \ + (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 15, 0)) && \ + (!defined(JSON_HEDLEY_MSVC_VERSION) || JSON_HEDLEY_MSVC_VERSION_CHECK(19, 20, 0)) +#define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns, attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(ns::attribute) #else - #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0) +#define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns, attribute) (0) #endif #if defined(JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE) - #undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE #endif #if defined(__has_cpp_attribute) && defined(__cplusplus) - #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute) +#define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute, major, minor, patch) __has_cpp_attribute(attribute) #else - #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute, major, minor, patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE) - #undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE #endif #if defined(__has_cpp_attribute) && defined(__cplusplus) - #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute) +#define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute, major, minor, patch) __has_cpp_attribute(attribute) #else - #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute, major, minor, patch) JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_HAS_BUILTIN) - #undef JSON_HEDLEY_HAS_BUILTIN +#undef JSON_HEDLEY_HAS_BUILTIN #endif #if defined(__has_builtin) - #define JSON_HEDLEY_HAS_BUILTIN(builtin) __has_builtin(builtin) +#define JSON_HEDLEY_HAS_BUILTIN(builtin) __has_builtin(builtin) #else - #define JSON_HEDLEY_HAS_BUILTIN(builtin) (0) +#define JSON_HEDLEY_HAS_BUILTIN(builtin) (0) #endif #if defined(JSON_HEDLEY_GNUC_HAS_BUILTIN) - #undef JSON_HEDLEY_GNUC_HAS_BUILTIN +#undef JSON_HEDLEY_GNUC_HAS_BUILTIN #endif #if defined(__has_builtin) - #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin) +#define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin, major, minor, patch) __has_builtin(builtin) #else - #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin, major, minor, patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_GCC_HAS_BUILTIN) - #undef JSON_HEDLEY_GCC_HAS_BUILTIN +#undef JSON_HEDLEY_GCC_HAS_BUILTIN #endif #if defined(__has_builtin) - #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin) +#define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin, major, minor, patch) __has_builtin(builtin) #else - #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin, major, minor, patch) JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_HAS_FEATURE) - #undef JSON_HEDLEY_HAS_FEATURE +#undef JSON_HEDLEY_HAS_FEATURE #endif #if defined(__has_feature) - #define JSON_HEDLEY_HAS_FEATURE(feature) __has_feature(feature) +#define JSON_HEDLEY_HAS_FEATURE(feature) __has_feature(feature) #else - #define JSON_HEDLEY_HAS_FEATURE(feature) (0) +#define JSON_HEDLEY_HAS_FEATURE(feature) (0) #endif #if defined(JSON_HEDLEY_GNUC_HAS_FEATURE) - #undef JSON_HEDLEY_GNUC_HAS_FEATURE +#undef JSON_HEDLEY_GNUC_HAS_FEATURE #endif #if defined(__has_feature) - #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature) +#define JSON_HEDLEY_GNUC_HAS_FEATURE(feature, major, minor, patch) __has_feature(feature) #else - #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GNUC_HAS_FEATURE(feature, major, minor, patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_GCC_HAS_FEATURE) - #undef JSON_HEDLEY_GCC_HAS_FEATURE +#undef JSON_HEDLEY_GCC_HAS_FEATURE #endif #if defined(__has_feature) - #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature) +#define JSON_HEDLEY_GCC_HAS_FEATURE(feature, major, minor, patch) __has_feature(feature) #else - #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GCC_HAS_FEATURE(feature, major, minor, patch) JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_HAS_EXTENSION) - #undef JSON_HEDLEY_HAS_EXTENSION +#undef JSON_HEDLEY_HAS_EXTENSION #endif #if defined(__has_extension) - #define JSON_HEDLEY_HAS_EXTENSION(extension) __has_extension(extension) +#define JSON_HEDLEY_HAS_EXTENSION(extension) __has_extension(extension) #else - #define JSON_HEDLEY_HAS_EXTENSION(extension) (0) +#define JSON_HEDLEY_HAS_EXTENSION(extension) (0) #endif #if defined(JSON_HEDLEY_GNUC_HAS_EXTENSION) - #undef JSON_HEDLEY_GNUC_HAS_EXTENSION +#undef JSON_HEDLEY_GNUC_HAS_EXTENSION #endif #if defined(__has_extension) - #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension) +#define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension, major, minor, patch) __has_extension(extension) #else - #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension, major, minor, patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_GCC_HAS_EXTENSION) - #undef JSON_HEDLEY_GCC_HAS_EXTENSION +#undef JSON_HEDLEY_GCC_HAS_EXTENSION #endif #if defined(__has_extension) - #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension) +#define JSON_HEDLEY_GCC_HAS_EXTENSION(extension, major, minor, patch) __has_extension(extension) #else - #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GCC_HAS_EXTENSION(extension, major, minor, patch) JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE) - #undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE #endif #if defined(__has_declspec_attribute) - #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) __has_declspec_attribute(attribute) +#define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) __has_declspec_attribute(attribute) #else - #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) (0) +#define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) (0) #endif #if defined(JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE) - #undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE #endif #if defined(__has_declspec_attribute) - #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute) +#define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute, major, minor, patch) __has_declspec_attribute(attribute) #else - #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute, major, minor, patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE) - #undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE #endif #if defined(__has_declspec_attribute) - #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute) +#define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute, major, minor, patch) __has_declspec_attribute(attribute) #else - #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute, major, minor, patch) JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_HAS_WARNING) - #undef JSON_HEDLEY_HAS_WARNING +#undef JSON_HEDLEY_HAS_WARNING #endif #if defined(__has_warning) - #define JSON_HEDLEY_HAS_WARNING(warning) __has_warning(warning) +#define JSON_HEDLEY_HAS_WARNING(warning) __has_warning(warning) #else - #define JSON_HEDLEY_HAS_WARNING(warning) (0) +#define JSON_HEDLEY_HAS_WARNING(warning) (0) #endif #if defined(JSON_HEDLEY_GNUC_HAS_WARNING) - #undef JSON_HEDLEY_GNUC_HAS_WARNING +#undef JSON_HEDLEY_GNUC_HAS_WARNING #endif #if defined(__has_warning) - #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning) +#define JSON_HEDLEY_GNUC_HAS_WARNING(warning, major, minor, patch) __has_warning(warning) #else - #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GNUC_HAS_WARNING(warning, major, minor, patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_GCC_HAS_WARNING) - #undef JSON_HEDLEY_GCC_HAS_WARNING +#undef JSON_HEDLEY_GCC_HAS_WARNING #endif #if defined(__has_warning) - #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning) +#define JSON_HEDLEY_GCC_HAS_WARNING(warning, major, minor, patch) __has_warning(warning) #else - #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) -#endif - -#if \ - (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ - defined(__clang__) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,0,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) || \ - JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,17) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(8,0,0) || \ - (JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) && defined(__C99_PRAGMA_OPERATOR)) - #define JSON_HEDLEY_PRAGMA(value) _Pragma(#value) -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) - #define JSON_HEDLEY_PRAGMA(value) __pragma(value) +#define JSON_HEDLEY_GCC_HAS_WARNING(warning, major, minor, patch) JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) +#endif + +#if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ + defined(__clang__) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 0, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18, 4, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 7, 0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(2, 0, 1) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 1, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 0, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(5, 0, 0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0, 9, 17) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(8, 0, 0) || \ + (JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) && defined(__C99_PRAGMA_OPERATOR)) +#define JSON_HEDLEY_PRAGMA(value) _Pragma(#value) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15, 0, 0) +#define JSON_HEDLEY_PRAGMA(value) __pragma(value) #else - #define JSON_HEDLEY_PRAGMA(value) +#define JSON_HEDLEY_PRAGMA(value) #endif #if defined(JSON_HEDLEY_DIAGNOSTIC_PUSH) - #undef JSON_HEDLEY_DIAGNOSTIC_PUSH +#undef JSON_HEDLEY_DIAGNOSTIC_PUSH #endif #if defined(JSON_HEDLEY_DIAGNOSTIC_POP) - #undef JSON_HEDLEY_DIAGNOSTIC_POP +#undef JSON_HEDLEY_DIAGNOSTIC_POP #endif #if defined(__clang__) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("clang diagnostic pop") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop") -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH __pragma(warning(push)) - #define JSON_HEDLEY_DIAGNOSTIC_POP __pragma(warning(pop)) -#elif JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("push") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("pop") -#elif \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,4,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("diag_push") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("diag_pop") -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0) - #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") - #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") +#define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push") +#define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("clang diagnostic pop") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") +#define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4, 6, 0) +#define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push") +#define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_DIAGNOSTIC_PUSH __pragma(warning(push)) +#define JSON_HEDLEY_DIAGNOSTIC_POP __pragma(warning(pop)) +#elif JSON_HEDLEY_ARM_VERSION_CHECK(5, 6, 0) +#define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("push") +#define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("pop") +#elif JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 4, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8, 1, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) +#define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("diag_push") +#define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("diag_pop") +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2, 90, 0) +#define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") +#define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") #else - #define JSON_HEDLEY_DIAGNOSTIC_PUSH - #define JSON_HEDLEY_DIAGNOSTIC_POP +#define JSON_HEDLEY_DIAGNOSTIC_PUSH +#define JSON_HEDLEY_DIAGNOSTIC_POP #endif /* JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ is for HEDLEY INTERNAL USE ONLY. API subject to change without notice. */ #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ #endif #if defined(__cplusplus) -# if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat") -# if JSON_HEDLEY_HAS_WARNING("-Wc++17-extensions") -# if JSON_HEDLEY_HAS_WARNING("-Wc++1z-extensions") -# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ - _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ - _Pragma("clang diagnostic ignored \"-Wc++1z-extensions\"") \ - xpr \ - JSON_HEDLEY_DIAGNOSTIC_POP -# else -# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ - _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ - xpr \ - JSON_HEDLEY_DIAGNOSTIC_POP -# endif -# else -# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ - xpr \ - JSON_HEDLEY_DIAGNOSTIC_POP -# endif -# endif +#if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat") +#if JSON_HEDLEY_HAS_WARNING("-Wc++17-extensions") +#if JSON_HEDLEY_HAS_WARNING("-Wc++1z-extensions") +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ + _Pragma("clang diagnostic ignored \"-Wc++1z-extensions\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +#else +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +#endif +#else +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +#endif +#endif #endif #if !defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(x) x +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(x) x #endif #if defined(JSON_HEDLEY_CONST_CAST) - #undef JSON_HEDLEY_CONST_CAST +#undef JSON_HEDLEY_CONST_CAST #endif #if defined(__cplusplus) -# define JSON_HEDLEY_CONST_CAST(T, expr) (const_cast(expr)) -#elif \ - JSON_HEDLEY_HAS_WARNING("-Wcast-qual") || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) -# define JSON_HEDLEY_CONST_CAST(T, expr) (__extension__ ({ \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL \ - ((T) (expr)); \ - JSON_HEDLEY_DIAGNOSTIC_POP \ - })) +#define JSON_HEDLEY_CONST_CAST(T, expr) (const_cast(expr)) +#elif JSON_HEDLEY_HAS_WARNING("-Wcast-qual") || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 6, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) +#define JSON_HEDLEY_CONST_CAST(T, expr) (__extension__({ \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL((T)(expr)); \ + JSON_HEDLEY_DIAGNOSTIC_POP \ +})) #else -# define JSON_HEDLEY_CONST_CAST(T, expr) ((T) (expr)) +#define JSON_HEDLEY_CONST_CAST(T, expr) ((T)(expr)) #endif #if defined(JSON_HEDLEY_REINTERPRET_CAST) - #undef JSON_HEDLEY_REINTERPRET_CAST +#undef JSON_HEDLEY_REINTERPRET_CAST #endif #if defined(__cplusplus) - #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) (reinterpret_cast(expr)) +#define JSON_HEDLEY_REINTERPRET_CAST(T, expr) (reinterpret_cast(expr)) #else - #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) ((T) (expr)) +#define JSON_HEDLEY_REINTERPRET_CAST(T, expr) ((T)(expr)) #endif #if defined(JSON_HEDLEY_STATIC_CAST) - #undef JSON_HEDLEY_STATIC_CAST +#undef JSON_HEDLEY_STATIC_CAST #endif #if defined(__cplusplus) - #define JSON_HEDLEY_STATIC_CAST(T, expr) (static_cast(expr)) +#define JSON_HEDLEY_STATIC_CAST(T, expr) (static_cast(expr)) #else - #define JSON_HEDLEY_STATIC_CAST(T, expr) ((T) (expr)) +#define JSON_HEDLEY_STATIC_CAST(T, expr) ((T)(expr)) #endif #if defined(JSON_HEDLEY_CPP_CAST) - #undef JSON_HEDLEY_CPP_CAST +#undef JSON_HEDLEY_CPP_CAST #endif #if defined(__cplusplus) -# if JSON_HEDLEY_HAS_WARNING("-Wold-style-cast") -# define JSON_HEDLEY_CPP_CAST(T, expr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wold-style-cast\"") \ - ((T) (expr)) \ - JSON_HEDLEY_DIAGNOSTIC_POP -# elif JSON_HEDLEY_IAR_VERSION_CHECK(8,3,0) -# define JSON_HEDLEY_CPP_CAST(T, expr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("diag_suppress=Pe137") \ - JSON_HEDLEY_DIAGNOSTIC_POP -# else -# define JSON_HEDLEY_CPP_CAST(T, expr) ((T) (expr)) -# endif +#if JSON_HEDLEY_HAS_WARNING("-Wold-style-cast") +#define JSON_HEDLEY_CPP_CAST(T, expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wold-style-cast\"")((T)(expr)) \ + JSON_HEDLEY_DIAGNOSTIC_POP +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8, 3, 0) +#define JSON_HEDLEY_CPP_CAST(T, expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("diag_suppress=Pe137") \ + JSON_HEDLEY_DIAGNOSTIC_POP +#else +#define JSON_HEDLEY_CPP_CAST(T, expr) ((T)(expr)) +#endif #else -# define JSON_HEDLEY_CPP_CAST(T, expr) (expr) +#define JSON_HEDLEY_CPP_CAST(T, expr) (expr) #endif #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED #endif #if JSON_HEDLEY_HAS_WARNING("-Wdeprecated-declarations") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warning(disable:1478 1786)") -#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:1478 1786)) -#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1216,1444,1445") -#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:4996)) -#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") -#elif \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1291,1718") -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && !defined(__cplusplus) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,E_DEPRECATED_ATT,E_DEPRECATED_ATT_MESS)") -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && defined(__cplusplus) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,symdeprecated,symdeprecated2)") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress=Pe1444,Pe1215") -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warn(disable:2241)") +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warning(disable:1478 1786)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable : 1478 1786)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(20, 7, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1216,1444,1445") +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17, 10, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4, 3, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable : 4996)) +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") +#elif JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1291,1718") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 13, 0) && !defined(__cplusplus) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,E_DEPRECATED_ATT,E_DEPRECATED_ATT_MESS)") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 13, 0) && defined(__cplusplus) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,symdeprecated,symdeprecated2)") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress=Pe1444,Pe1215") +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2, 90, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warn(disable:2241)") #else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED #endif #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS #endif #if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("clang diagnostic ignored \"-Wunknown-pragmas\"") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("warning(disable:161)") -#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:161)) -#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 1675") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("GCC diagnostic ignored \"-Wunknown-pragmas\"") -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:4068)) -#elif \ - JSON_HEDLEY_TI_VERSION_CHECK(16,9,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") -#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress=Pe161") -#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 161") +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("clang diagnostic ignored \"-Wunknown-pragmas\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("warning(disable:161)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable : 161)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17, 10, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 1675") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4, 3, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("GCC diagnostic ignored \"-Wunknown-pragmas\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable : 4068)) +#elif JSON_HEDLEY_TI_VERSION_CHECK(16, 9, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8, 0, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 3, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress=Pe161") +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 161") #else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS #endif #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES #endif #if JSON_HEDLEY_HAS_WARNING("-Wunknown-attributes") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("clang diagnostic ignored \"-Wunknown-attributes\"") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("warning(disable:1292)") -#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:1292)) -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:5030)) -#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097,1098") -#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("error_messages(off,attrskipunsup)") -#elif \ - JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1173") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress=Pe1097") -#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("clang diagnostic ignored \"-Wunknown-attributes\"") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4, 6, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(17, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("warning(disable:1292)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable : 1292)) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(19, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable : 5030)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(20, 7, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097,1098") +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17, 10, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 14, 0) && defined(__cplusplus) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("error_messages(off,attrskipunsup)") +#elif JSON_HEDLEY_TI_VERSION_CHECK(18, 1, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8, 3, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1173") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress=Pe1097") +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") #else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES #endif #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL #endif #if JSON_HEDLEY_HAS_WARNING("-Wcast-qual") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("clang diagnostic ignored \"-Wcast-qual\"") -#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("warning(disable:2203 2331)") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("GCC diagnostic ignored \"-Wcast-qual\"") +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("clang diagnostic ignored \"-Wcast-qual\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("warning(disable:2203 2331)") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(3, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("GCC diagnostic ignored \"-Wcast-qual\"") #else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL #endif #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION) - #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION #endif #if JSON_HEDLEY_HAS_WARNING("-Wunused-function") - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("clang diagnostic ignored \"-Wunused-function\"") -#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("GCC diagnostic ignored \"-Wunused-function\"") -#elif JSON_HEDLEY_MSVC_VERSION_CHECK(1,0,0) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION __pragma(warning(disable:4505)) -#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("diag_suppress 3142") +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("clang diagnostic ignored \"-Wunused-function\"") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(3, 4, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("GCC diagnostic ignored \"-Wunused-function\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(1, 0, 0) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION __pragma(warning(disable : 4505)) +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("diag_suppress 3142") #else - #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION +#define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION #endif #if defined(JSON_HEDLEY_DEPRECATED) - #undef JSON_HEDLEY_DEPRECATED +#undef JSON_HEDLEY_DEPRECATED #endif #if defined(JSON_HEDLEY_DEPRECATED_FOR) - #undef JSON_HEDLEY_DEPRECATED_FOR -#endif -#if \ - JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated("Since " # since)) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated("Since " #since "; use " #replacement)) -#elif \ - (JSON_HEDLEY_HAS_EXTENSION(attribute_deprecated_with_message) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(18,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__("Since " #since))) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__("Since " #since "; use " #replacement))) +#undef JSON_HEDLEY_DEPRECATED_FOR +#endif +#if JSON_HEDLEY_MSVC_VERSION_CHECK(14, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated("Since " #since)) +#define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated("Since " #since "; use " #replacement)) +#elif (JSON_HEDLEY_HAS_EXTENSION(attribute_deprecated_with_message) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 5, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5, 6, 0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 13, 0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17, 10, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(18, 1, 0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(18, 1, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8, 3, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 3, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__("Since " #since))) +#define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__("Since " #since "; use " #replacement))) #elif defined(__cplusplus) && (__cplusplus >= 201402L) - #define JSON_HEDLEY_DEPRECATED(since) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since)]]) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since "; use " #replacement)]]) -#elif \ - JSON_HEDLEY_HAS_ATTRIBUTE(deprecated) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) - #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__)) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__)) -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ - JSON_HEDLEY_PELLES_VERSION_CHECK(6,50,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated) -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_DEPRECATED(since) _Pragma("deprecated") - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) _Pragma("deprecated") +#define JSON_HEDLEY_DEPRECATED(since) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since)]]) +#define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since "; use " #replacement)]]) +#elif JSON_HEDLEY_HAS_ATTRIBUTE(deprecated) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 1, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8, 10, 0) +#define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__)) +#define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__)) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(13, 10, 0) || \ + JSON_HEDLEY_PELLES_VERSION_CHECK(6, 50, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated) +#define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated) +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_DEPRECATED(since) _Pragma("deprecated") +#define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) _Pragma("deprecated") #else - #define JSON_HEDLEY_DEPRECATED(since) - #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) +#define JSON_HEDLEY_DEPRECATED(since) +#define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) #endif #if defined(JSON_HEDLEY_UNAVAILABLE) - #undef JSON_HEDLEY_UNAVAILABLE -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(warning) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_UNAVAILABLE(available_since) __attribute__((__warning__("Not available until " #available_since))) +#undef JSON_HEDLEY_UNAVAILABLE +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(warning) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 3, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_UNAVAILABLE(available_since) __attribute__((__warning__("Not available until " #available_since))) #else - #define JSON_HEDLEY_UNAVAILABLE(available_since) +#define JSON_HEDLEY_UNAVAILABLE(available_since) #endif #if defined(JSON_HEDLEY_WARN_UNUSED_RESULT) - #undef JSON_HEDLEY_WARN_UNUSED_RESULT +#undef JSON_HEDLEY_WARN_UNUSED_RESULT #endif #if defined(JSON_HEDLEY_WARN_UNUSED_RESULT_MSG) - #undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(warn_unused_result) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__)) - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) __attribute__((__warn_unused_result__)) +#undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(warn_unused_result) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 4, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 15, 0) && defined(__cplusplus)) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17, 10, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__)) +#define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) __attribute__((__warn_unused_result__)) #elif (JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) >= 201907L) - #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard(msg)]]) +#define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) +#define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard(msg)]]) #elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) - #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) +#define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) +#define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) #elif defined(_Check_return_) /* SAL */ - #define JSON_HEDLEY_WARN_UNUSED_RESULT _Check_return_ - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) _Check_return_ +#define JSON_HEDLEY_WARN_UNUSED_RESULT _Check_return_ +#define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) _Check_return_ #else - #define JSON_HEDLEY_WARN_UNUSED_RESULT - #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) +#define JSON_HEDLEY_WARN_UNUSED_RESULT +#define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) #endif #if defined(JSON_HEDLEY_SENTINEL) - #undef JSON_HEDLEY_SENTINEL -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(sentinel) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_SENTINEL(position) __attribute__((__sentinel__(position))) +#undef JSON_HEDLEY_SENTINEL +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(sentinel) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 0, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5, 4, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_SENTINEL(position) __attribute__((__sentinel__(position))) #else - #define JSON_HEDLEY_SENTINEL(position) +#define JSON_HEDLEY_SENTINEL(position) #endif #if defined(JSON_HEDLEY_NO_RETURN) - #undef JSON_HEDLEY_NO_RETURN -#endif -#if JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_NO_RETURN __noreturn -#elif \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) +#undef JSON_HEDLEY_NO_RETURN +#endif +#if JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_NO_RETURN __noreturn +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L - #define JSON_HEDLEY_NO_RETURN _Noreturn +#define JSON_HEDLEY_NO_RETURN _Noreturn #elif defined(__cplusplus) && (__cplusplus >= 201103L) - #define JSON_HEDLEY_NO_RETURN JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[noreturn]]) -#elif \ - JSON_HEDLEY_HAS_ATTRIBUTE(noreturn) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,2,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) - #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) - #define JSON_HEDLEY_NO_RETURN _Pragma("does_not_return") -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_NO_RETURN __declspec(noreturn) -#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus) - #define JSON_HEDLEY_NO_RETURN _Pragma("FUNC_NEVER_RETURNS;") -#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0) - #define JSON_HEDLEY_NO_RETURN __attribute((noreturn)) -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0) - #define JSON_HEDLEY_NO_RETURN __declspec(noreturn) +#define JSON_HEDLEY_NO_RETURN JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[noreturn]]) +#elif JSON_HEDLEY_HAS_ATTRIBUTE(noreturn) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 2, 0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 11, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8, 10, 0) +#define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 10, 0) +#define JSON_HEDLEY_NO_RETURN _Pragma("does_not_return") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(13, 10, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_NO_RETURN __declspec(noreturn) +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6, 0, 0) && defined(__cplusplus) +#define JSON_HEDLEY_NO_RETURN _Pragma("FUNC_NEVER_RETURNS;") +#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3, 2, 0) +#define JSON_HEDLEY_NO_RETURN __attribute((noreturn)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9, 0, 0) +#define JSON_HEDLEY_NO_RETURN __declspec(noreturn) #else - #define JSON_HEDLEY_NO_RETURN +#define JSON_HEDLEY_NO_RETURN #endif #if defined(JSON_HEDLEY_NO_ESCAPE) - #undef JSON_HEDLEY_NO_ESCAPE +#undef JSON_HEDLEY_NO_ESCAPE #endif #if JSON_HEDLEY_HAS_ATTRIBUTE(noescape) - #define JSON_HEDLEY_NO_ESCAPE __attribute__((__noescape__)) +#define JSON_HEDLEY_NO_ESCAPE __attribute__((__noescape__)) #else - #define JSON_HEDLEY_NO_ESCAPE +#define JSON_HEDLEY_NO_ESCAPE #endif #if defined(JSON_HEDLEY_UNREACHABLE) - #undef JSON_HEDLEY_UNREACHABLE +#undef JSON_HEDLEY_UNREACHABLE #endif #if defined(JSON_HEDLEY_UNREACHABLE_RETURN) - #undef JSON_HEDLEY_UNREACHABLE_RETURN +#undef JSON_HEDLEY_UNREACHABLE_RETURN #endif #if defined(JSON_HEDLEY_ASSUME) - #undef JSON_HEDLEY_ASSUME +#undef JSON_HEDLEY_ASSUME #endif -#if \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_ASSUME(expr) __assume(expr) +#if JSON_HEDLEY_MSVC_VERSION_CHECK(13, 10, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_ASSUME(expr) __assume(expr) #elif JSON_HEDLEY_HAS_BUILTIN(__builtin_assume) - #define JSON_HEDLEY_ASSUME(expr) __builtin_assume(expr) -#elif \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) - #if defined(__cplusplus) - #define JSON_HEDLEY_ASSUME(expr) std::_nassert(expr) - #else - #define JSON_HEDLEY_ASSUME(expr) _nassert(expr) - #endif -#endif -#if \ - (JSON_HEDLEY_HAS_BUILTIN(__builtin_unreachable) && (!defined(JSON_HEDLEY_ARM_VERSION))) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(18,10,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(13,1,5) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(10,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_UNREACHABLE() __builtin_unreachable() +#define JSON_HEDLEY_ASSUME(expr) __builtin_assume(expr) +#elif JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 2, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4, 0, 0) +#if defined(__cplusplus) +#define JSON_HEDLEY_ASSUME(expr) std::_nassert(expr) +#else +#define JSON_HEDLEY_ASSUME(expr) _nassert(expr) +#endif +#endif +#if (JSON_HEDLEY_HAS_BUILTIN(__builtin_unreachable) && (!defined(JSON_HEDLEY_ARM_VERSION))) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 5, 0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18, 10, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13, 1, 5) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(10, 0, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_UNREACHABLE() __builtin_unreachable() #elif defined(JSON_HEDLEY_ASSUME) - #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) +#define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) #endif #if !defined(JSON_HEDLEY_ASSUME) - #if defined(JSON_HEDLEY_UNREACHABLE) - #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, ((expr) ? 1 : (JSON_HEDLEY_UNREACHABLE(), 1))) - #else - #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, expr) - #endif +#if defined(JSON_HEDLEY_UNREACHABLE) +#define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, ((expr) ? 1 : (JSON_HEDLEY_UNREACHABLE(), 1))) +#else +#define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, expr) +#endif #endif #if defined(JSON_HEDLEY_UNREACHABLE) - #if \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) - #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (JSON_HEDLEY_STATIC_CAST(void, JSON_HEDLEY_ASSUME(0)), (value)) - #else - #define JSON_HEDLEY_UNREACHABLE_RETURN(value) JSON_HEDLEY_UNREACHABLE() - #endif +#if JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 2, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4, 0, 0) +#define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (JSON_HEDLEY_STATIC_CAST(void, JSON_HEDLEY_ASSUME(0)), (value)) #else - #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (value) +#define JSON_HEDLEY_UNREACHABLE_RETURN(value) JSON_HEDLEY_UNREACHABLE() +#endif +#else +#define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (value) #endif #if !defined(JSON_HEDLEY_UNREACHABLE) - #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) +#define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) #endif JSON_HEDLEY_DIAGNOSTIC_PUSH #if JSON_HEDLEY_HAS_WARNING("-Wpedantic") - #pragma clang diagnostic ignored "-Wpedantic" +#pragma clang diagnostic ignored "-Wpedantic" #endif #if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat-pedantic") && defined(__cplusplus) - #pragma clang diagnostic ignored "-Wc++98-compat-pedantic" +#pragma clang diagnostic ignored "-Wc++98-compat-pedantic" +#endif +#if JSON_HEDLEY_GCC_HAS_WARNING("-Wvariadic-macros", 4, 0, 0) +#if defined(__clang__) +#pragma clang diagnostic ignored "-Wvariadic-macros" +#elif defined(JSON_HEDLEY_GCC_VERSION) +#pragma GCC diagnostic ignored "-Wvariadic-macros" #endif -#if JSON_HEDLEY_GCC_HAS_WARNING("-Wvariadic-macros",4,0,0) - #if defined(__clang__) - #pragma clang diagnostic ignored "-Wvariadic-macros" - #elif defined(JSON_HEDLEY_GCC_VERSION) - #pragma GCC diagnostic ignored "-Wvariadic-macros" - #endif #endif #if defined(JSON_HEDLEY_NON_NULL) - #undef JSON_HEDLEY_NON_NULL -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(nonnull) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) - #define JSON_HEDLEY_NON_NULL(...) __attribute__((__nonnull__(__VA_ARGS__))) +#undef JSON_HEDLEY_NON_NULL +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(nonnull) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 3, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) +#define JSON_HEDLEY_NON_NULL(...) __attribute__((__nonnull__(__VA_ARGS__))) #else - #define JSON_HEDLEY_NON_NULL(...) +#define JSON_HEDLEY_NON_NULL(...) #endif JSON_HEDLEY_DIAGNOSTIC_POP #if defined(JSON_HEDLEY_PRINTF_FORMAT) - #undef JSON_HEDLEY_PRINTF_FORMAT -#endif -#if defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && !defined(__USE_MINGW_ANSI_STDIO) - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(ms_printf, string_idx, first_to_check))) -#elif defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && defined(__USE_MINGW_ANSI_STDIO) - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(gnu_printf, string_idx, first_to_check))) -#elif \ - JSON_HEDLEY_HAS_ATTRIBUTE(format) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(__printf__, string_idx, first_to_check))) -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(6,0,0) - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __declspec(vaformat(printf,string_idx,first_to_check)) +#undef JSON_HEDLEY_PRINTF_FORMAT +#endif +#if defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format, 4, 4, 0) && !defined(__USE_MINGW_ANSI_STDIO) +#define JSON_HEDLEY_PRINTF_FORMAT(string_idx, first_to_check) __attribute__((__format__(ms_printf, string_idx, first_to_check))) +#elif defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format, 4, 4, 0) && defined(__USE_MINGW_ANSI_STDIO) +#define JSON_HEDLEY_PRINTF_FORMAT(string_idx, first_to_check) __attribute__((__format__(gnu_printf, string_idx, first_to_check))) +#elif JSON_HEDLEY_HAS_ATTRIBUTE(format) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 1, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5, 6, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_PRINTF_FORMAT(string_idx, first_to_check) __attribute__((__format__(__printf__, string_idx, first_to_check))) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(6, 0, 0) +#define JSON_HEDLEY_PRINTF_FORMAT(string_idx, first_to_check) __declspec(vaformat(printf, string_idx, first_to_check)) #else - #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) +#define JSON_HEDLEY_PRINTF_FORMAT(string_idx, first_to_check) #endif #if defined(JSON_HEDLEY_CONSTEXPR) - #undef JSON_HEDLEY_CONSTEXPR +#undef JSON_HEDLEY_CONSTEXPR #endif #if defined(__cplusplus) - #if __cplusplus >= 201103L - #define JSON_HEDLEY_CONSTEXPR JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(constexpr) - #endif +#if __cplusplus >= 201103L +#define JSON_HEDLEY_CONSTEXPR JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(constexpr) +#endif #endif #if !defined(JSON_HEDLEY_CONSTEXPR) - #define JSON_HEDLEY_CONSTEXPR +#define JSON_HEDLEY_CONSTEXPR #endif #if defined(JSON_HEDLEY_PREDICT) - #undef JSON_HEDLEY_PREDICT +#undef JSON_HEDLEY_PREDICT #endif #if defined(JSON_HEDLEY_LIKELY) - #undef JSON_HEDLEY_LIKELY +#undef JSON_HEDLEY_LIKELY #endif #if defined(JSON_HEDLEY_UNLIKELY) - #undef JSON_HEDLEY_UNLIKELY +#undef JSON_HEDLEY_UNLIKELY #endif #if defined(JSON_HEDLEY_UNPREDICTABLE) - #undef JSON_HEDLEY_UNPREDICTABLE +#undef JSON_HEDLEY_UNPREDICTABLE #endif #if JSON_HEDLEY_HAS_BUILTIN(__builtin_unpredictable) - #define JSON_HEDLEY_UNPREDICTABLE(expr) __builtin_unpredictable((expr)) -#endif -#if \ - (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect_with_probability) && !defined(JSON_HEDLEY_PGI_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(9,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) -# define JSON_HEDLEY_PREDICT(expr, value, probability) __builtin_expect_with_probability( (expr), (value), (probability)) -# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) __builtin_expect_with_probability(!!(expr), 1 , (probability)) -# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) __builtin_expect_with_probability(!!(expr), 0 , (probability)) -# define JSON_HEDLEY_LIKELY(expr) __builtin_expect (!!(expr), 1 ) -# define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect (!!(expr), 0 ) -#elif \ - (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,27) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) -# define JSON_HEDLEY_PREDICT(expr, expected, probability) \ +#define JSON_HEDLEY_UNPREDICTABLE(expr) __builtin_unpredictable((expr)) +#endif +#if (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect_with_probability) && !defined(JSON_HEDLEY_PGI_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(9, 0, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_PREDICT(expr, value, probability) __builtin_expect_with_probability((expr), (value), (probability)) +#define JSON_HEDLEY_PREDICT_TRUE(expr, probability) __builtin_expect_with_probability(!!(expr), 1, (probability)) +#define JSON_HEDLEY_PREDICT_FALSE(expr, probability) __builtin_expect_with_probability(!!(expr), 0, (probability)) +#define JSON_HEDLEY_LIKELY(expr) __builtin_expect(!!(expr), 1) +#define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0) +#elif (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 0, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 15, 0) && defined(__cplusplus)) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 7, 0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(3, 1, 0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 1, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6, 1, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0, 9, 27) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8, 1, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_PREDICT(expr, expected, probability) \ (((probability) >= 0.9) ? __builtin_expect((expr), (expected)) : (JSON_HEDLEY_STATIC_CAST(void, expected), (expr))) -# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) \ - (__extension__ ({ \ - double hedley_probability_ = (probability); \ +#define JSON_HEDLEY_PREDICT_TRUE(expr, probability) \ + (__extension__({ \ + double hedley_probability_ = (probability); \ ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 1) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 0) : !!(expr))); \ })) -# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) \ - (__extension__ ({ \ - double hedley_probability_ = (probability); \ +#define JSON_HEDLEY_PREDICT_FALSE(expr, probability) \ + (__extension__({ \ + double hedley_probability_ = (probability); \ ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 0) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 1) : !!(expr))); \ })) -# define JSON_HEDLEY_LIKELY(expr) __builtin_expect(!!(expr), 1) -# define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0) +#define JSON_HEDLEY_LIKELY(expr) __builtin_expect(!!(expr), 1) +#define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0) #else -# define JSON_HEDLEY_PREDICT(expr, expected, probability) (JSON_HEDLEY_STATIC_CAST(void, expected), (expr)) -# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) (!!(expr)) -# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) (!!(expr)) -# define JSON_HEDLEY_LIKELY(expr) (!!(expr)) -# define JSON_HEDLEY_UNLIKELY(expr) (!!(expr)) +#define JSON_HEDLEY_PREDICT(expr, expected, probability) (JSON_HEDLEY_STATIC_CAST(void, expected), (expr)) +#define JSON_HEDLEY_PREDICT_TRUE(expr, probability) (!!(expr)) +#define JSON_HEDLEY_PREDICT_FALSE(expr, probability) (!!(expr)) +#define JSON_HEDLEY_LIKELY(expr) (!!(expr)) +#define JSON_HEDLEY_UNLIKELY(expr) (!!(expr)) #endif #if !defined(JSON_HEDLEY_UNPREDICTABLE) - #define JSON_HEDLEY_UNPREDICTABLE(expr) JSON_HEDLEY_PREDICT(expr, 1, 0.5) +#define JSON_HEDLEY_UNPREDICTABLE(expr) JSON_HEDLEY_PREDICT(expr, 1, 0.5) #endif #if defined(JSON_HEDLEY_MALLOC) - #undef JSON_HEDLEY_MALLOC -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(malloc) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_MALLOC __attribute__((__malloc__)) -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) - #define JSON_HEDLEY_MALLOC _Pragma("returns_new_memory") -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_MALLOC __declspec(restrict) +#undef JSON_HEDLEY_MALLOC +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(malloc) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 1, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 11, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(12, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_MALLOC __attribute__((__malloc__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 10, 0) +#define JSON_HEDLEY_MALLOC _Pragma("returns_new_memory") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(14, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_MALLOC __declspec(restrict) #else - #define JSON_HEDLEY_MALLOC +#define JSON_HEDLEY_MALLOC #endif #if defined(JSON_HEDLEY_PURE) - #undef JSON_HEDLEY_PURE -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(pure) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(2,96,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) -# define JSON_HEDLEY_PURE __attribute__((__pure__)) -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) -# define JSON_HEDLEY_PURE _Pragma("does_not_write_global_data") -#elif defined(__cplusplus) && \ - ( \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) \ - ) -# define JSON_HEDLEY_PURE _Pragma("FUNC_IS_PURE;") +#undef JSON_HEDLEY_PURE +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(pure) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(2, 96, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 11, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17, 10, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_PURE __attribute__((__pure__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 10, 0) +#define JSON_HEDLEY_PURE _Pragma("does_not_write_global_data") +#elif defined(__cplusplus) && \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(2, 0, 1) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4, 0, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0)) +#define JSON_HEDLEY_PURE _Pragma("FUNC_IS_PURE;") #else -# define JSON_HEDLEY_PURE +#define JSON_HEDLEY_PURE #endif #if defined(JSON_HEDLEY_CONST) - #undef JSON_HEDLEY_CONST -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(const) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(2,5,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_CONST __attribute__((__const__)) -#elif \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) - #define JSON_HEDLEY_CONST _Pragma("no_side_effect") +#undef JSON_HEDLEY_CONST +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(const) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(2, 5, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 11, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17, 10, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_CONST __attribute__((__const__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 10, 0) +#define JSON_HEDLEY_CONST _Pragma("no_side_effect") #else - #define JSON_HEDLEY_CONST JSON_HEDLEY_PURE +#define JSON_HEDLEY_CONST JSON_HEDLEY_PURE #endif #if defined(JSON_HEDLEY_RESTRICT) - #undef JSON_HEDLEY_RESTRICT +#undef JSON_HEDLEY_RESTRICT #endif #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && !defined(__cplusplus) - #define JSON_HEDLEY_RESTRICT restrict -#elif \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,4) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus)) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \ - defined(__clang__) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_RESTRICT __restrict -#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,3,0) && !defined(__cplusplus) - #define JSON_HEDLEY_RESTRICT _Restrict +#define JSON_HEDLEY_RESTRICT restrict +#elif JSON_HEDLEY_GCC_VERSION_CHECK(3, 1, 0) || \ + JSON_HEDLEY_MSVC_VERSION_CHECK(14, 0, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17, 10, 0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 2, 4) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8, 1, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 14, 0) && defined(__cplusplus)) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) || \ + defined(__clang__) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_RESTRICT __restrict +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 3, 0) && !defined(__cplusplus) +#define JSON_HEDLEY_RESTRICT _Restrict #else - #define JSON_HEDLEY_RESTRICT +#define JSON_HEDLEY_RESTRICT #endif #if defined(JSON_HEDLEY_INLINE) - #undef JSON_HEDLEY_INLINE +#undef JSON_HEDLEY_INLINE #endif -#if \ - (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ +#if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ (defined(__cplusplus) && (__cplusplus >= 199711L)) - #define JSON_HEDLEY_INLINE inline -#elif \ - defined(JSON_HEDLEY_GCC_VERSION) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(6,2,0) - #define JSON_HEDLEY_INLINE __inline__ -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,1,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_INLINE __inline +#define JSON_HEDLEY_INLINE inline +#elif defined(JSON_HEDLEY_GCC_VERSION) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(6, 2, 0) +#define JSON_HEDLEY_INLINE __inline__ +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(12, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 1, 0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(3, 1, 0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 2, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8, 0, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_INLINE __inline #else - #define JSON_HEDLEY_INLINE +#define JSON_HEDLEY_INLINE #endif #if defined(JSON_HEDLEY_ALWAYS_INLINE) - #undef JSON_HEDLEY_ALWAYS_INLINE -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(always_inline) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) -# define JSON_HEDLEY_ALWAYS_INLINE __attribute__((__always_inline__)) JSON_HEDLEY_INLINE -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) -# define JSON_HEDLEY_ALWAYS_INLINE __forceinline -#elif defined(__cplusplus) && \ - ( \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) \ - ) -# define JSON_HEDLEY_ALWAYS_INLINE _Pragma("FUNC_ALWAYS_INLINE;") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) -# define JSON_HEDLEY_ALWAYS_INLINE _Pragma("inline=forced") +#undef JSON_HEDLEY_ALWAYS_INLINE +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(always_inline) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 0, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 11, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8, 10, 0) +#define JSON_HEDLEY_ALWAYS_INLINE __attribute__((__always_inline__)) JSON_HEDLEY_INLINE +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(12, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_ALWAYS_INLINE __forceinline +#elif defined(__cplusplus) && \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6, 1, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0)) +#define JSON_HEDLEY_ALWAYS_INLINE _Pragma("FUNC_ALWAYS_INLINE;") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_ALWAYS_INLINE _Pragma("inline=forced") #else -# define JSON_HEDLEY_ALWAYS_INLINE JSON_HEDLEY_INLINE +#define JSON_HEDLEY_ALWAYS_INLINE JSON_HEDLEY_INLINE #endif #if defined(JSON_HEDLEY_NEVER_INLINE) - #undef JSON_HEDLEY_NEVER_INLINE -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(noinline) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ - JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ - (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ - (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ - (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ - JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ - JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ - JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) - #define JSON_HEDLEY_NEVER_INLINE __attribute__((__noinline__)) -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) -#elif JSON_HEDLEY_PGI_VERSION_CHECK(10,2,0) - #define JSON_HEDLEY_NEVER_INLINE _Pragma("noinline") -#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus) - #define JSON_HEDLEY_NEVER_INLINE _Pragma("FUNC_CANNOT_INLINE;") -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) - #define JSON_HEDLEY_NEVER_INLINE _Pragma("inline=never") -#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0) - #define JSON_HEDLEY_NEVER_INLINE __attribute((noinline)) -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0) - #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) +#undef JSON_HEDLEY_NEVER_INLINE +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(noinline) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 0, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 11, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10, 1, 0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15, 12, 0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4, 8, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5, 2, 0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6, 4, 0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 0, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4, 3, 0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1, 2, 0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2, 1, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8, 10, 0) +#define JSON_HEDLEY_NEVER_INLINE __attribute__((__noinline__)) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(13, 10, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(10, 2, 0) +#define JSON_HEDLEY_NEVER_INLINE _Pragma("noinline") +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6, 0, 0) && defined(__cplusplus) +#define JSON_HEDLEY_NEVER_INLINE _Pragma("FUNC_CANNOT_INLINE;") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_NEVER_INLINE _Pragma("inline=never") +#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3, 2, 0) +#define JSON_HEDLEY_NEVER_INLINE __attribute((noinline)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9, 0, 0) +#define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) #else - #define JSON_HEDLEY_NEVER_INLINE +#define JSON_HEDLEY_NEVER_INLINE #endif #if defined(JSON_HEDLEY_PRIVATE) - #undef JSON_HEDLEY_PRIVATE +#undef JSON_HEDLEY_PRIVATE #endif #if defined(JSON_HEDLEY_PUBLIC) - #undef JSON_HEDLEY_PUBLIC +#undef JSON_HEDLEY_PUBLIC #endif #if defined(JSON_HEDLEY_IMPORT) - #undef JSON_HEDLEY_IMPORT +#undef JSON_HEDLEY_IMPORT #endif #if defined(_WIN32) || defined(__CYGWIN__) -# define JSON_HEDLEY_PRIVATE -# define JSON_HEDLEY_PUBLIC __declspec(dllexport) -# define JSON_HEDLEY_IMPORT __declspec(dllimport) +#define JSON_HEDLEY_PRIVATE +#define JSON_HEDLEY_PUBLIC __declspec(dllexport) +#define JSON_HEDLEY_IMPORT __declspec(dllimport) +#else +#if JSON_HEDLEY_HAS_ATTRIBUTE(visibility) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 3, 0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 11, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13, 1, 0) || \ + (defined(__TI_EABI__) && \ + ((JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 2, 0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7, 5, 0))) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_PRIVATE __attribute__((__visibility__("hidden"))) +#define JSON_HEDLEY_PUBLIC __attribute__((__visibility__("default"))) #else -# if \ - JSON_HEDLEY_HAS_ATTRIBUTE(visibility) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ - JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ - ( \ - defined(__TI_EABI__) && \ - ( \ - (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) \ - ) \ - ) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) -# define JSON_HEDLEY_PRIVATE __attribute__((__visibility__("hidden"))) -# define JSON_HEDLEY_PUBLIC __attribute__((__visibility__("default"))) -# else -# define JSON_HEDLEY_PRIVATE -# define JSON_HEDLEY_PUBLIC -# endif -# define JSON_HEDLEY_IMPORT extern +#define JSON_HEDLEY_PRIVATE +#define JSON_HEDLEY_PUBLIC +#endif +#define JSON_HEDLEY_IMPORT extern #endif #if defined(JSON_HEDLEY_NO_THROW) - #undef JSON_HEDLEY_NO_THROW -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(nothrow) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_NO_THROW __attribute__((__nothrow__)) -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(13,1,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) - #define JSON_HEDLEY_NO_THROW __declspec(nothrow) +#undef JSON_HEDLEY_NO_THROW +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(nothrow) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 3, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_NO_THROW __attribute__((__nothrow__)) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(13, 1, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) +#define JSON_HEDLEY_NO_THROW __declspec(nothrow) #else - #define JSON_HEDLEY_NO_THROW +#define JSON_HEDLEY_NO_THROW #endif #if defined(JSON_HEDLEY_FALL_THROUGH) - #undef JSON_HEDLEY_FALL_THROUGH -#endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(fallthrough) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(7,0,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_FALL_THROUGH __attribute__((__fallthrough__)) -#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(clang,fallthrough) - #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[clang::fallthrough]]) +#undef JSON_HEDLEY_FALL_THROUGH +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(fallthrough) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(7, 0, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_FALL_THROUGH __attribute__((__fallthrough__)) +#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(clang, fallthrough) +#define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[clang::fallthrough]]) #elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(fallthrough) - #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[fallthrough]]) +#define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[fallthrough]]) #elif defined(__fallthrough) /* SAL */ - #define JSON_HEDLEY_FALL_THROUGH __fallthrough +#define JSON_HEDLEY_FALL_THROUGH __fallthrough #else - #define JSON_HEDLEY_FALL_THROUGH +#define JSON_HEDLEY_FALL_THROUGH #endif #if defined(JSON_HEDLEY_RETURNS_NON_NULL) - #undef JSON_HEDLEY_RETURNS_NON_NULL +#undef JSON_HEDLEY_RETURNS_NON_NULL #endif -#if \ - JSON_HEDLEY_HAS_ATTRIBUTE(returns_nonnull) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_RETURNS_NON_NULL __attribute__((__returns_nonnull__)) +#if JSON_HEDLEY_HAS_ATTRIBUTE(returns_nonnull) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 9, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_RETURNS_NON_NULL __attribute__((__returns_nonnull__)) #elif defined(_Ret_notnull_) /* SAL */ - #define JSON_HEDLEY_RETURNS_NON_NULL _Ret_notnull_ +#define JSON_HEDLEY_RETURNS_NON_NULL _Ret_notnull_ #else - #define JSON_HEDLEY_RETURNS_NON_NULL +#define JSON_HEDLEY_RETURNS_NON_NULL #endif #if defined(JSON_HEDLEY_ARRAY_PARAM) - #undef JSON_HEDLEY_ARRAY_PARAM +#undef JSON_HEDLEY_ARRAY_PARAM #endif -#if \ - defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ - !defined(__STDC_NO_VLA__) && \ - !defined(__cplusplus) && \ - !defined(JSON_HEDLEY_PGI_VERSION) && \ +#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ + !defined(__STDC_NO_VLA__) && \ + !defined(__cplusplus) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ !defined(JSON_HEDLEY_TINYC_VERSION) - #define JSON_HEDLEY_ARRAY_PARAM(name) (name) +#define JSON_HEDLEY_ARRAY_PARAM(name) (name) #else - #define JSON_HEDLEY_ARRAY_PARAM(name) +#define JSON_HEDLEY_ARRAY_PARAM(name) #endif #if defined(JSON_HEDLEY_IS_CONSTANT) - #undef JSON_HEDLEY_IS_CONSTANT +#undef JSON_HEDLEY_IS_CONSTANT #endif #if defined(JSON_HEDLEY_REQUIRE_CONSTEXPR) - #undef JSON_HEDLEY_REQUIRE_CONSTEXPR +#undef JSON_HEDLEY_REQUIRE_CONSTEXPR #endif /* JSON_HEDLEY_IS_CONSTEXPR_ is for HEDLEY INTERNAL USE ONLY. API subject to change without notice. */ #if defined(JSON_HEDLEY_IS_CONSTEXPR_) - #undef JSON_HEDLEY_IS_CONSTEXPR_ -#endif -#if \ - JSON_HEDLEY_HAS_BUILTIN(__builtin_constant_p) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,19) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ - JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ - (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) && !defined(__cplusplus)) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) - #define JSON_HEDLEY_IS_CONSTANT(expr) __builtin_constant_p(expr) +#undef JSON_HEDLEY_IS_CONSTEXPR_ +#endif +#if JSON_HEDLEY_HAS_BUILTIN(__builtin_constant_p) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 4, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0, 9, 19) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4, 1, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13, 1, 0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6, 1, 0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5, 10, 0) && !defined(__cplusplus)) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8, 1, 0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1, 25, 10) +#define JSON_HEDLEY_IS_CONSTANT(expr) __builtin_constant_p(expr) #endif #if !defined(__cplusplus) -# if \ - JSON_HEDLEY_HAS_BUILTIN(__builtin_types_compatible_p) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ - JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \ - JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,24) +#if JSON_HEDLEY_HAS_BUILTIN(__builtin_types_compatible_p) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3, 4, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13, 1, 0) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8, 1, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5, 4, 0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0, 9, 24) #if defined(__INTPTR_TYPE__) - #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0)), int*) +#define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*)((__INTPTR_TYPE__)((expr)*0)) : (int*)0)), int*) #else - #include - #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((intptr_t) ((expr) * 0)) : (int*) 0)), int*) -#endif -# elif \ - ( \ - defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && \ - !defined(JSON_HEDLEY_SUNPRO_VERSION) && \ - !defined(JSON_HEDLEY_PGI_VERSION) && \ - !defined(JSON_HEDLEY_IAR_VERSION)) || \ - (JSON_HEDLEY_HAS_EXTENSION(c_generic_selections) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) || \ - JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \ - JSON_HEDLEY_ARM_VERSION_CHECK(5,3,0) +#include +#define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*)((intptr_t)((expr)*0)) : (int*)0)), int*) +#endif +#elif ( \ + defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && \ + !defined(JSON_HEDLEY_SUNPRO_VERSION) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_IAR_VERSION)) || \ + (JSON_HEDLEY_HAS_EXTENSION(c_generic_selections) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4, 9, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(17, 0, 0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(12, 1, 0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5, 3, 0) #if defined(__INTPTR_TYPE__) - #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0), int*: 1, void*: 0) +#define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*)((__INTPTR_TYPE__)((expr)*0)) : (int*)0), int* : 1, void* : 0) #else - #include - #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((intptr_t) * 0) : (int*) 0), int*: 1, void*: 0) -#endif -# elif \ - defined(JSON_HEDLEY_GCC_VERSION) || \ - defined(JSON_HEDLEY_INTEL_VERSION) || \ - defined(JSON_HEDLEY_TINYC_VERSION) || \ - defined(JSON_HEDLEY_TI_ARMCL_VERSION) || \ - JSON_HEDLEY_TI_CL430_VERSION_CHECK(18,12,0) || \ - defined(JSON_HEDLEY_TI_CL2000_VERSION) || \ - defined(JSON_HEDLEY_TI_CL6X_VERSION) || \ - defined(JSON_HEDLEY_TI_CL7X_VERSION) || \ - defined(JSON_HEDLEY_TI_CLPRU_VERSION) || \ - defined(__clang__) -# define JSON_HEDLEY_IS_CONSTEXPR_(expr) ( \ - sizeof(void) != \ - sizeof(*( \ - 1 ? \ - ((void*) ((expr) * 0L) ) : \ -((struct { char v[sizeof(void) * 2]; } *) 1) \ - ) \ - ) \ - ) -# endif +#include +#define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*)((intptr_t)*0) : (int*)0), int* : 1, void* : 0) +#endif +#elif defined(JSON_HEDLEY_GCC_VERSION) || \ + defined(JSON_HEDLEY_INTEL_VERSION) || \ + defined(JSON_HEDLEY_TINYC_VERSION) || \ + defined(JSON_HEDLEY_TI_ARMCL_VERSION) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(18, 12, 0) || \ + defined(JSON_HEDLEY_TI_CL2000_VERSION) || \ + defined(JSON_HEDLEY_TI_CL6X_VERSION) || \ + defined(JSON_HEDLEY_TI_CL7X_VERSION) || \ + defined(JSON_HEDLEY_TI_CLPRU_VERSION) || \ + defined(__clang__) +#define JSON_HEDLEY_IS_CONSTEXPR_(expr) ( \ + sizeof(void) != \ + sizeof(*( \ + 1 ? ((void*)((expr)*0L)) : ((struct { char v[sizeof(void) * 2]; }*)1)))) +#endif #endif #if defined(JSON_HEDLEY_IS_CONSTEXPR_) - #if !defined(JSON_HEDLEY_IS_CONSTANT) - #define JSON_HEDLEY_IS_CONSTANT(expr) JSON_HEDLEY_IS_CONSTEXPR_(expr) - #endif - #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (JSON_HEDLEY_IS_CONSTEXPR_(expr) ? (expr) : (-1)) +#if !defined(JSON_HEDLEY_IS_CONSTANT) +#define JSON_HEDLEY_IS_CONSTANT(expr) JSON_HEDLEY_IS_CONSTEXPR_(expr) +#endif +#define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (JSON_HEDLEY_IS_CONSTEXPR_(expr) ? (expr) : (-1)) #else - #if !defined(JSON_HEDLEY_IS_CONSTANT) - #define JSON_HEDLEY_IS_CONSTANT(expr) (0) - #endif - #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (expr) +#if !defined(JSON_HEDLEY_IS_CONSTANT) +#define JSON_HEDLEY_IS_CONSTANT(expr) (0) +#endif +#define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (expr) #endif #if defined(JSON_HEDLEY_BEGIN_C_DECLS) - #undef JSON_HEDLEY_BEGIN_C_DECLS +#undef JSON_HEDLEY_BEGIN_C_DECLS #endif #if defined(JSON_HEDLEY_END_C_DECLS) - #undef JSON_HEDLEY_END_C_DECLS +#undef JSON_HEDLEY_END_C_DECLS #endif #if defined(JSON_HEDLEY_C_DECL) - #undef JSON_HEDLEY_C_DECL +#undef JSON_HEDLEY_C_DECL #endif #if defined(__cplusplus) - #define JSON_HEDLEY_BEGIN_C_DECLS extern "C" { - #define JSON_HEDLEY_END_C_DECLS } - #define JSON_HEDLEY_C_DECL extern "C" +#define JSON_HEDLEY_BEGIN_C_DECLS extern "C" { +#define JSON_HEDLEY_END_C_DECLS } +#define JSON_HEDLEY_C_DECL extern "C" #else - #define JSON_HEDLEY_BEGIN_C_DECLS - #define JSON_HEDLEY_END_C_DECLS - #define JSON_HEDLEY_C_DECL +#define JSON_HEDLEY_BEGIN_C_DECLS +#define JSON_HEDLEY_END_C_DECLS +#define JSON_HEDLEY_C_DECL #endif #if defined(JSON_HEDLEY_STATIC_ASSERT) - #undef JSON_HEDLEY_STATIC_ASSERT -#endif -#if \ - !defined(__cplusplus) && ( \ - (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)) || \ - (JSON_HEDLEY_HAS_FEATURE(c_static_assert) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ - JSON_HEDLEY_GCC_VERSION_CHECK(6,0,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ - defined(_Static_assert) \ - ) -# define JSON_HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message) -#elif \ - (defined(__cplusplus) && (__cplusplus >= 201103L)) || \ - JSON_HEDLEY_MSVC_VERSION_CHECK(16,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) -# define JSON_HEDLEY_STATIC_ASSERT(expr, message) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(static_assert(expr, message)) +#undef JSON_HEDLEY_STATIC_ASSERT +#endif +#if !defined(__cplusplus) && ((defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)) || \ + (JSON_HEDLEY_HAS_FEATURE(c_static_assert) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(6, 0, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) || \ + defined(_Static_assert)) +#define JSON_HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message) +#elif (defined(__cplusplus) && (__cplusplus >= 201103L)) || \ + JSON_HEDLEY_MSVC_VERSION_CHECK(16, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_STATIC_ASSERT(expr, message) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(static_assert(expr, message)) #else -# define JSON_HEDLEY_STATIC_ASSERT(expr, message) +#define JSON_HEDLEY_STATIC_ASSERT(expr, message) #endif #if defined(JSON_HEDLEY_NULL) - #undef JSON_HEDLEY_NULL +#undef JSON_HEDLEY_NULL #endif #if defined(__cplusplus) - #if __cplusplus >= 201103L - #define JSON_HEDLEY_NULL JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(nullptr) - #elif defined(NULL) - #define JSON_HEDLEY_NULL NULL - #else - #define JSON_HEDLEY_NULL JSON_HEDLEY_STATIC_CAST(void*, 0) - #endif +#if __cplusplus >= 201103L +#define JSON_HEDLEY_NULL JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(nullptr) +#elif defined(NULL) +#define JSON_HEDLEY_NULL NULL +#else +#define JSON_HEDLEY_NULL JSON_HEDLEY_STATIC_CAST(void*, 0) +#endif #elif defined(NULL) - #define JSON_HEDLEY_NULL NULL +#define JSON_HEDLEY_NULL NULL #else - #define JSON_HEDLEY_NULL ((void*) 0) +#define JSON_HEDLEY_NULL ((void*)0) #endif #if defined(JSON_HEDLEY_MESSAGE) - #undef JSON_HEDLEY_MESSAGE +#undef JSON_HEDLEY_MESSAGE #endif #if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") -# define JSON_HEDLEY_MESSAGE(msg) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ +#define JSON_HEDLEY_MESSAGE(msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \ - JSON_HEDLEY_PRAGMA(message msg) \ + JSON_HEDLEY_PRAGMA(message msg) \ JSON_HEDLEY_DIAGNOSTIC_POP -#elif \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) -# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message msg) -#elif JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) -# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(_CRI message msg) -#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) -# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) -#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,0,0) -# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4, 4, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) +#define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message msg) +#elif JSON_HEDLEY_CRAY_VERSION_CHECK(5, 0, 0) +#define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(_CRI message msg) +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8, 0, 0) +#define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2, 0, 0) +#define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) #else -# define JSON_HEDLEY_MESSAGE(msg) +#define JSON_HEDLEY_MESSAGE(msg) #endif #if defined(JSON_HEDLEY_WARNING) - #undef JSON_HEDLEY_WARNING +#undef JSON_HEDLEY_WARNING #endif #if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") -# define JSON_HEDLEY_WARNING(msg) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ +#define JSON_HEDLEY_WARNING(msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \ - JSON_HEDLEY_PRAGMA(clang warning msg) \ + JSON_HEDLEY_PRAGMA(clang warning msg) \ JSON_HEDLEY_DIAGNOSTIC_POP -#elif \ - JSON_HEDLEY_GCC_VERSION_CHECK(4,8,0) || \ - JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \ - JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) -# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(GCC warning msg) -#elif \ - JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) -# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4, 8, 0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18, 4, 0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13, 0, 0) +#define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(GCC warning msg) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15, 0, 0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(message(msg)) #else -# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_MESSAGE(msg) +#define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_MESSAGE(msg) #endif #if defined(JSON_HEDLEY_REQUIRE) - #undef JSON_HEDLEY_REQUIRE +#undef JSON_HEDLEY_REQUIRE #endif #if defined(JSON_HEDLEY_REQUIRE_MSG) - #undef JSON_HEDLEY_REQUIRE_MSG +#undef JSON_HEDLEY_REQUIRE_MSG #endif #if JSON_HEDLEY_HAS_ATTRIBUTE(diagnose_if) -# if JSON_HEDLEY_HAS_WARNING("-Wgcc-compat") -# define JSON_HEDLEY_REQUIRE(expr) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ - __attribute__((diagnose_if(!(expr), #expr, "error"))) \ - JSON_HEDLEY_DIAGNOSTIC_POP -# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ - __attribute__((diagnose_if(!(expr), msg, "error"))) \ - JSON_HEDLEY_DIAGNOSTIC_POP -# else -# define JSON_HEDLEY_REQUIRE(expr) __attribute__((diagnose_if(!(expr), #expr, "error"))) -# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) __attribute__((diagnose_if(!(expr), msg, "error"))) -# endif +#if JSON_HEDLEY_HAS_WARNING("-Wgcc-compat") +#define JSON_HEDLEY_REQUIRE(expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ + __attribute__((diagnose_if(!(expr), #expr, "error"))) \ + JSON_HEDLEY_DIAGNOSTIC_POP +#define JSON_HEDLEY_REQUIRE_MSG(expr, msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ + __attribute__((diagnose_if(!(expr), msg, "error"))) \ + JSON_HEDLEY_DIAGNOSTIC_POP +#else +#define JSON_HEDLEY_REQUIRE(expr) __attribute__((diagnose_if(!(expr), #expr, "error"))) +#define JSON_HEDLEY_REQUIRE_MSG(expr, msg) __attribute__((diagnose_if(!(expr), msg, "error"))) +#endif #else -# define JSON_HEDLEY_REQUIRE(expr) -# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) +#define JSON_HEDLEY_REQUIRE(expr) +#define JSON_HEDLEY_REQUIRE_MSG(expr, msg) #endif #if defined(JSON_HEDLEY_FLAGS) - #undef JSON_HEDLEY_FLAGS +#undef JSON_HEDLEY_FLAGS #endif #if JSON_HEDLEY_HAS_ATTRIBUTE(flag_enum) && (!defined(__cplusplus) || JSON_HEDLEY_HAS_WARNING("-Wbitfield-enum-conversion")) - #define JSON_HEDLEY_FLAGS __attribute__((__flag_enum__)) +#define JSON_HEDLEY_FLAGS __attribute__((__flag_enum__)) #else - #define JSON_HEDLEY_FLAGS +#define JSON_HEDLEY_FLAGS #endif #if defined(JSON_HEDLEY_FLAGS_CAST) - #undef JSON_HEDLEY_FLAGS_CAST -#endif -#if JSON_HEDLEY_INTEL_VERSION_CHECK(19,0,0) -# define JSON_HEDLEY_FLAGS_CAST(T, expr) (__extension__ ({ \ - JSON_HEDLEY_DIAGNOSTIC_PUSH \ - _Pragma("warning(disable:188)") \ - ((T) (expr)); \ - JSON_HEDLEY_DIAGNOSTIC_POP \ - })) +#undef JSON_HEDLEY_FLAGS_CAST +#endif +#if JSON_HEDLEY_INTEL_VERSION_CHECK(19, 0, 0) +#define JSON_HEDLEY_FLAGS_CAST(T, expr) (__extension__({ \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("warning(disable:188)")((T)(expr)); \ + JSON_HEDLEY_DIAGNOSTIC_POP \ +})) #else -# define JSON_HEDLEY_FLAGS_CAST(T, expr) JSON_HEDLEY_STATIC_CAST(T, expr) +#define JSON_HEDLEY_FLAGS_CAST(T, expr) JSON_HEDLEY_STATIC_CAST(T, expr) #endif #if defined(JSON_HEDLEY_EMPTY_BASES) - #undef JSON_HEDLEY_EMPTY_BASES +#undef JSON_HEDLEY_EMPTY_BASES #endif -#if \ - (JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,23918) && !JSON_HEDLEY_MSVC_VERSION_CHECK(20,0,0)) || \ - JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) - #define JSON_HEDLEY_EMPTY_BASES __declspec(empty_bases) +#if (JSON_HEDLEY_MSVC_VERSION_CHECK(19, 0, 23918) && !JSON_HEDLEY_MSVC_VERSION_CHECK(20, 0, 0)) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021, 1, 0) +#define JSON_HEDLEY_EMPTY_BASES __declspec(empty_bases) #else - #define JSON_HEDLEY_EMPTY_BASES +#define JSON_HEDLEY_EMPTY_BASES #endif /* Remaining macros are deprecated. */ #if defined(JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK) - #undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK +#undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK #endif #if defined(__clang__) - #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) (0) +#define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major, minor, patch) (0) #else - #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major, minor, patch) JSON_HEDLEY_GCC_VERSION_CHECK(major, minor, patch) #endif #if defined(JSON_HEDLEY_CLANG_HAS_ATTRIBUTE) - #undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE #endif #define JSON_HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) #if defined(JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE) - #undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE #endif #define JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) #if defined(JSON_HEDLEY_CLANG_HAS_BUILTIN) - #undef JSON_HEDLEY_CLANG_HAS_BUILTIN +#undef JSON_HEDLEY_CLANG_HAS_BUILTIN #endif #define JSON_HEDLEY_CLANG_HAS_BUILTIN(builtin) JSON_HEDLEY_HAS_BUILTIN(builtin) #if defined(JSON_HEDLEY_CLANG_HAS_FEATURE) - #undef JSON_HEDLEY_CLANG_HAS_FEATURE +#undef JSON_HEDLEY_CLANG_HAS_FEATURE #endif #define JSON_HEDLEY_CLANG_HAS_FEATURE(feature) JSON_HEDLEY_HAS_FEATURE(feature) #if defined(JSON_HEDLEY_CLANG_HAS_EXTENSION) - #undef JSON_HEDLEY_CLANG_HAS_EXTENSION +#undef JSON_HEDLEY_CLANG_HAS_EXTENSION #endif #define JSON_HEDLEY_CLANG_HAS_EXTENSION(extension) JSON_HEDLEY_HAS_EXTENSION(extension) #if defined(JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE) - #undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE #endif #define JSON_HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) #if defined(JSON_HEDLEY_CLANG_HAS_WARNING) - #undef JSON_HEDLEY_CLANG_HAS_WARNING +#undef JSON_HEDLEY_CLANG_HAS_WARNING #endif #define JSON_HEDLEY_CLANG_HAS_WARNING(warning) JSON_HEDLEY_HAS_WARNING(warning) @@ -2215,227 +2124,227 @@ JSON_HEDLEY_DIAGNOSTIC_POP // #include - #include // #include - namespace nlohmann { namespace detail { -template struct make_void -{ - using type = void; -}; -template using void_t = typename make_void::type; + template + struct make_void + { + using type = void; + }; + template + using void_t = typename make_void::type; } // namespace detail -} // namespace nlohmann - +} // namespace nlohmann // https://en.cppreference.com/w/cpp/experimental/is_detected namespace nlohmann { namespace detail { -struct nonesuch -{ - nonesuch() = delete; - ~nonesuch() = delete; - nonesuch(nonesuch const&) = delete; - nonesuch(nonesuch const&&) = delete; - void operator=(nonesuch const&) = delete; - void operator=(nonesuch&&) = delete; -}; + struct nonesuch + { + nonesuch() = delete; + ~nonesuch() = delete; + nonesuch(nonesuch const&) = delete; + nonesuch(nonesuch const&&) = delete; + void operator=(nonesuch const&) = delete; + void operator=(nonesuch&&) = delete; + }; -template class Op, - class... Args> -struct detector -{ - using value_t = std::false_type; - using type = Default; -}; + template class Op, + class... Args> + struct detector + { + using value_t = std::false_type; + using type = Default; + }; -template class Op, class... Args> -struct detector>, Op, Args...> -{ - using value_t = std::true_type; - using type = Op; -}; + template class Op, class... Args> + struct detector>, Op, Args...> + { + using value_t = std::true_type; + using type = Op; + }; -template class Op, class... Args> -using is_detected = typename detector::value_t; + template