diff options
| -rw-r--r-- | src/nlohmann/json.hpp | 1713 |
1 files changed, 932 insertions, 781 deletions
diff --git a/src/nlohmann/json.hpp b/src/nlohmann/json.hpp index 9754e464c..5b0b0ea5b 100644 --- a/src/nlohmann/json.hpp +++ b/src/nlohmann/json.hpp @@ -1,7 +1,7 @@ /* __ _____ _____ _____ __| | __| | | | JSON for Modern C++ -| | |__ | | | | | | version 2.1.1 +| | |__ | | | | | | version 3.0.1 |_____|_____|_____|_|___| https://github.com/nlohmann/json Licensed under the MIT License <http://opensource.org/licenses/MIT>. @@ -109,7 +109,7 @@ SOFTWARE. #define JSON_UNLIKELY(x) x #endif -// cpp language standard detection +// C++ language standard detection #if (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464 #define JSON_HAS_CPP_17 #define JSON_HAS_CPP_14 @@ -128,20 +128,18 @@ template<typename = void, typename = void> struct adl_serializer; // forward declaration of basic_json (required to split the class) -template<template<typename U, typename V, typename... Args> class ObjectType = - std::map, - template<typename U, typename... Args> class ArrayType = std::vector, +template<template<typename, typename, typename...> class ObjectType = std::map, + template<typename, typename...> 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<typename U> class AllocatorType = std::allocator, - template<typename T, typename SFINAE = void> class JSONSerializer = - adl_serializer> + template<typename> class AllocatorType = std::allocator, + template<typename, typename = void> class JSONSerializer = adl_serializer> class basic_json; -// Ugly macros to avoid uglier copy-paste when specializing basic_json -// This is only temporary and will be removed in 3.0 +// 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<template<typename, typename, typename...> class ObjectType, \ @@ -227,7 +225,7 @@ class exception : public std::exception /*! @brief exception indicating a parse error -This excpetion is thrown by the library when a parse error occurs. Parse errors +This exception is thrown by the library when a parse error occurs. Parse errors can occur during the deserialization of JSON text, CBOR, MessagePack, as well as when using JSON Patch. @@ -243,12 +241,12 @@ json.exception.parse_error.102 | parse error at 14: missing or wrong low surroga json.exception.parse_error.103 | parse error: code points above 0x10FFFF are invalid | Unicode supports code points up to 0x10FFFF. Code points above 0x10FFFF are invalid. json.exception.parse_error.104 | parse error: JSON patch must be an array of objects | [RFC 6902](https://tools.ietf.org/html/rfc6902) requires a JSON Patch document to be a JSON document that represents an array of objects. json.exception.parse_error.105 | parse error: operation must have string member 'op' | An operation of a JSON Patch document must contain exactly one "op" member, whose value indicates the operation to perform. Its value must be one of "add", "remove", "replace", "move", "copy", or "test"; other values are errors. -json.exception.parse_error.106 | parse error: array index '01' must not begin with '0' | An array index in a JSON Pointer ([RFC 6901](https://tools.ietf.org/html/rfc6901)) may be `0` or any number wihtout a leading `0`. +json.exception.parse_error.106 | parse error: array index '01' must not begin with '0' | An array index in a JSON Pointer ([RFC 6901](https://tools.ietf.org/html/rfc6901)) may be `0` or any number without a leading `0`. json.exception.parse_error.107 | parse error: JSON pointer must be empty or begin with '/' - was: 'foo' | A JSON Pointer must be a Unicode string containing a sequence of zero or more reference tokens, each prefixed by a `/` character. json.exception.parse_error.108 | parse error: escape character '~' must be followed with '0' or '1' | In a JSON Pointer, only `~0` and `~1` are valid escape sequences. json.exception.parse_error.109 | parse error: array index 'one' is not a number | A JSON Pointer array index must be a number. json.exception.parse_error.110 | parse error at 1: cannot read 2 bytes from vector | When parsing CBOR or MessagePack, the byte vector ends before the complete value has been read. -json.exception.parse_error.112 | parse error at 1: error reading CBOR; last byte: 0xf8 | Not all types of CBOR or MessagePack are supported. This exception occurs if an unsupported byte was read. +json.exception.parse_error.112 | parse error at 1: error reading CBOR; last byte: 0xF8 | Not all types of CBOR or MessagePack are supported. This exception occurs if an unsupported byte was read. json.exception.parse_error.113 | parse error at 2: expected a CBOR string; last byte: 0x98 | While parsing a map key, a value that is not a string has been read. @note For an input with n bytes, 1 is the index of the first character and n+1 @@ -378,6 +376,7 @@ json.exception.type_error.312 | cannot use update() with string | The @ref updat json.exception.type_error.313 | invalid value to unflatten | The @ref unflatten function converts an object whose keys are JSON Pointers back into an arbitrary nested JSON value. The JSON Pointers must not overlap, because then the resulting value would not be well defined. json.exception.type_error.314 | only objects can be unflattened | The @ref unflatten function only works for an object whose keys are JSON Pointers. json.exception.type_error.315 | values in object must be primitive | The @ref unflatten function only works for an object whose keys are JSON Pointers and whose values are primitive. +json.exception.type_error.316 | invalid UTF-8 byte at index 10: 0x7E | The @ref dump function only works with UTF-8 encoded strings; that is, if you assign a `std::string` to a JSON value, make sure it is UTF-8 encoded. | @liveexample{The following code shows how a `type_error` exception can be caught.,type_error} @@ -457,7 +456,6 @@ Exceptions have ids 5xx. name / id | example message | description ------------------------------ | --------------- | ------------------------- json.exception.other_error.501 | unsuccessful: {"op":"test","path":"/baz", "value":"bar"} | A JSON Patch operation 'test' failed. The unsuccessful operation is also printed. -json.exception.other_error.502 | invalid object size for conversion | Some conversions to user-defined types impose constraints on the object size (e.g. std::pair) @sa @ref exception for the base class of the library exceptions @sa @ref parse_error for exceptions indicating a parse error @@ -540,20 +538,14 @@ Returns an ordering that is similar to Python: inline bool operator<(const value_t lhs, const value_t rhs) noexcept { static constexpr std::array<uint8_t, 8> order = {{ - 0, // null - 3, // object - 4, // array - 5, // string - 1, // boolean - 2, // integer - 2, // unsigned - 2, // float + 0 /* null */, 3 /* object */, 4 /* array */, 5 /* string */, + 1 /* boolean */, 2 /* integer */, 2 /* unsigned */, 2 /* float */ } }; const auto l_index = static_cast<std::size_t>(lhs); const auto r_index = static_cast<std::size_t>(rhs); - return (l_index < order.size() and r_index < order.size() and order[l_index] < order[r_index]); + return l_index < order.size() and r_index < order.size() and order[l_index] < order[r_index]; } @@ -591,17 +583,15 @@ struct merge_and_renumber; template<std::size_t... I1, std::size_t... I2> struct merge_and_renumber<index_sequence<I1...>, index_sequence<I2...>> - : index_sequence < I1..., (sizeof...(I1) + I2)... > - {}; + : index_sequence < I1..., (sizeof...(I1) + I2)... > {}; template<std::size_t N> struct make_index_sequence : merge_and_renumber < typename make_index_sequence < N / 2 >::type, - typename make_index_sequence < N - N / 2 >::type > -{}; + typename make_index_sequence < N - N / 2 >::type > {}; -template<> struct make_index_sequence<0> : index_sequence<> { }; -template<> struct make_index_sequence<1> : index_sequence<0> { }; +template<> struct make_index_sequence<0> : index_sequence<> {}; +template<> struct make_index_sequence<1> : index_sequence<0> {}; template<typename... Ts> using index_sequence_for = make_index_sequence<sizeof...(Ts)>; @@ -624,7 +614,7 @@ template<class B1> struct conjunction<B1> : B1 {}; template<class B1, class... Bn> struct conjunction<B1, Bn...> : std::conditional<bool(B1::value), conjunction<Bn...>, B1>::type {}; -template<class B> struct negation : std::integral_constant < bool, !B::value > {}; +template<class B> struct negation : std::integral_constant<bool, not B::value> {}; // dispatch utility (taken from ranges-v3) template<unsigned N> struct priority_tag : priority_tag < N - 1 > {}; @@ -725,8 +715,7 @@ struct external_constructor<value_t::array> } template<typename BasicJsonType, typename CompatibleArrayType, - enable_if_t<not std::is_same<CompatibleArrayType, - typename BasicJsonType::array_t>::value, + enable_if_t<not std::is_same<CompatibleArrayType, typename BasicJsonType::array_t>::value, int> = 0> static void construct(BasicJsonType& j, const CompatibleArrayType& arr) { @@ -743,7 +732,7 @@ struct external_constructor<value_t::array> j.m_type = value_t::array; j.m_value = value_t::array; j.m_value.array->reserve(arr.size()); - for (bool x : arr) + for (const bool x : arr) { j.m_value.array->push_back(x); } @@ -782,8 +771,7 @@ struct external_constructor<value_t::object> } template<typename BasicJsonType, typename CompatibleObjectType, - enable_if_t<not std::is_same<CompatibleObjectType, - typename BasicJsonType::object_t>::value, int> = 0> + enable_if_t<not std::is_same<CompatibleObjectType, typename BasicJsonType::object_t>::value, int> = 0> static void construct(BasicJsonType& j, const CompatibleObjectType& obj) { using std::begin; @@ -896,7 +884,7 @@ struct is_compatible_integer_type is_compatible_integer_type_impl < std::is_integral<CompatibleNumberIntegerType>::value and not std::is_same<bool, CompatibleNumberIntegerType>::value, - RealIntegerType, CompatibleNumberIntegerType > ::value; + RealIntegerType, CompatibleNumberIntegerType >::value; }; @@ -922,10 +910,8 @@ template<typename BasicJsonType, typename T> struct has_non_default_from_json { private: - template < - typename U, - typename = enable_if_t<std::is_same< - T, decltype(uncvref_t<U>::from_json(std::declval<BasicJsonType>()))>::value >> + template<typename U, typename = + enable_if_t<std::is_same<T, decltype(uncvref_t<U>::from_json(std::declval<BasicJsonType>()))>::value>> static int detect(U&&); static void detect(...); @@ -954,22 +940,21 @@ struct has_to_json // to_json // ///////////// -template<typename BasicJsonType, typename T, enable_if_t< - std::is_same<T, typename BasicJsonType::boolean_t>::value, int> = 0> +template<typename BasicJsonType, typename T, + enable_if_t<std::is_same<T, typename BasicJsonType::boolean_t>::value, int> = 0> void to_json(BasicJsonType& j, T b) noexcept { external_constructor<value_t::boolean>::construct(j, b); } template<typename BasicJsonType, typename CompatibleString, - enable_if_t<std::is_constructible<typename BasicJsonType::string_t, - CompatibleString>::value, int> = 0> + enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0> void to_json(BasicJsonType& j, const CompatibleString& s) { external_constructor<value_t::string>::construct(j, s); } -template <typename BasicJsonType> +template<typename BasicJsonType> void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s) { external_constructor<value_t::string>::construct(j, std::move(s)); @@ -982,19 +967,15 @@ void to_json(BasicJsonType& j, FloatType val) noexcept external_constructor<value_t::number_float>::construct(j, static_cast<typename BasicJsonType::number_float_t>(val)); } -template < - typename BasicJsonType, typename CompatibleNumberUnsignedType, - enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_unsigned_t, - CompatibleNumberUnsignedType>::value, int> = 0 > +template<typename BasicJsonType, typename CompatibleNumberUnsignedType, + enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_unsigned_t, CompatibleNumberUnsignedType>::value, int> = 0> void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept { external_constructor<value_t::number_unsigned>::construct(j, static_cast<typename BasicJsonType::number_unsigned_t>(val)); } -template < - typename BasicJsonType, typename CompatibleNumberIntegerType, - enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_integer_t, - CompatibleNumberIntegerType>::value, int> = 0 > +template<typename BasicJsonType, typename CompatibleNumberIntegerType, + enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_integer_t, CompatibleNumberIntegerType>::value, int> = 0> void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept { external_constructor<value_t::number_integer>::construct(j, static_cast<typename BasicJsonType::number_integer_t>(val)); @@ -1014,49 +995,43 @@ void to_json(BasicJsonType& j, const std::vector<bool>& e) external_constructor<value_t::array>::construct(j, e); } -template < - typename BasicJsonType, typename CompatibleArrayType, - enable_if_t < - is_compatible_array_type<BasicJsonType, CompatibleArrayType>::value or - std::is_same<typename BasicJsonType::array_t, CompatibleArrayType>::value, - int > = 0 > +template<typename BasicJsonType, typename CompatibleArrayType, + enable_if_t<is_compatible_array_type<BasicJsonType, CompatibleArrayType>::value or + std::is_same<typename BasicJsonType::array_t, CompatibleArrayType>::value, + int> = 0> void to_json(BasicJsonType& j, const CompatibleArrayType& arr) { external_constructor<value_t::array>::construct(j, arr); } -template <typename BasicJsonType, typename T, - enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0> +template<typename BasicJsonType, typename T, + enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0> void to_json(BasicJsonType& j, std::valarray<T> arr) { external_constructor<value_t::array>::construct(j, std::move(arr)); } -template <typename BasicJsonType> +template<typename BasicJsonType> void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr) { external_constructor<value_t::array>::construct(j, std::move(arr)); } -template < - typename BasicJsonType, typename CompatibleObjectType, - enable_if_t<is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value, - int> = 0 > +template<typename BasicJsonType, typename CompatibleObjectType, + enable_if_t<is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value, int> = 0> void to_json(BasicJsonType& j, const CompatibleObjectType& obj) { external_constructor<value_t::object>::construct(j, obj); } -template <typename BasicJsonType> +template<typename BasicJsonType> void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj) { external_constructor<value_t::object>::construct(j, std::move(obj)); } template<typename BasicJsonType, typename T, std::size_t N, - enable_if_t<not std::is_constructible< - typename BasicJsonType::string_t, T (&)[N]>::value, - int> = 0> + enable_if_t<not std::is_constructible<typename BasicJsonType::string_t, T (&)[N]>::value, int> = 0> void to_json(BasicJsonType& j, T (&arr)[N]) { external_constructor<value_t::array>::construct(j, arr); @@ -1087,8 +1062,7 @@ void to_json(BasicJsonType& j, const std::tuple<Args...>& t) // overloads for basic_json template parameters template<typename BasicJsonType, typename ArithmeticType, enable_if_t<std::is_arithmetic<ArithmeticType>::value and - not std::is_same<ArithmeticType, - typename BasicJsonType::boolean_t>::value, + not std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value, int> = 0> void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val) { @@ -1351,6 +1325,13 @@ struct to_json_fn { static_assert(sizeof(BasicJsonType) == 0, "could not find to_json() method in T's namespace"); + +#ifdef _MSC_VER + // MSVC does not show a stacktrace for the above assert + using decayed = uncvref_t<T>; + static_assert(sizeof(typename decayed::force_msvc_stacktrace) == 0, + "forcing MSVC stacktrace to show which T we're talking about."); +#endif } public: @@ -1378,6 +1359,12 @@ struct from_json_fn { static_assert(sizeof(BasicJsonType) == 0, "could not find from_json() method in T's namespace"); +#ifdef _MSC_VER + // MSVC does not show a stacktrace for the above assert + using decayed = uncvref_t<T>; + static_assert(sizeof(typename decayed::force_msvc_stacktrace) == 0, + "forcing MSVC stacktrace to show which T we're talking about."); +#endif } public: @@ -1448,7 +1435,7 @@ class input_stream_adapter : public input_adapter_protocol explicit input_stream_adapter(std::istream& i) : is(i), sb(*i.rdbuf()) { - // ignore Byte Order Mark at start of input + // skip byte order mark std::char_traits<char>::int_type c; if ((c = get_character()) == 0xEF) { @@ -1472,7 +1459,7 @@ class input_stream_adapter : public input_adapter_protocol } else if (c != std::char_traits<char>::eof()) { - is.unget(); // Not BOM. Process as usual. + is.unget(); // no byte order mark; process as usual } } @@ -1481,8 +1468,8 @@ class input_stream_adapter : public input_adapter_protocol input_stream_adapter& operator=(input_stream_adapter&) = delete; // std::istream/std::streambuf use std::char_traits<char>::to_int_type, to - // ensure that std::char_traits<char>::eof() and the character 0xff do not - // end up as the same value, eg. 0xffffffff. + // ensure that std::char_traits<char>::eof() and the character 0xFF do not + // end up as the same value, eg. 0xFFFFFFFF. std::char_traits<char>::int_type get_character() override { return sb.sbumpc(); @@ -1561,8 +1548,7 @@ class input_adapter template<typename CharT, typename std::enable_if< std::is_pointer<CharT>::value and - std::is_integral< - typename std::remove_pointer<CharT>::type>::value and + std::is_integral<typename std::remove_pointer<CharT>::type>::value and sizeof(typename std::remove_pointer<CharT>::type) == 1, int>::type = 0> input_adapter(CharT b, std::size_t l) @@ -1574,8 +1560,7 @@ class input_adapter template<typename CharT, typename std::enable_if< std::is_pointer<CharT>::value and - std::is_integral< - typename std::remove_pointer<CharT>::type>::value and + std::is_integral<typename std::remove_pointer<CharT>::type>::value and sizeof(typename std::remove_pointer<CharT>::type) == 1, int>::type = 0> input_adapter(CharT b) @@ -1585,8 +1570,7 @@ class input_adapter /// input adapter for iterator range with contiguous storage template<class IteratorType, typename std::enable_if< - std::is_same<typename std::iterator_traits<IteratorType>::iterator_category, - std::random_access_iterator_tag>::value, + std::is_same<typename std::iterator_traits<IteratorType>::iterator_category, std::random_access_iterator_tag>::value, int>::type = 0> input_adapter(IteratorType first, IteratorType last) { @@ -1624,13 +1608,10 @@ class input_adapter : input_adapter(std::begin(array), std::end(array)) {} /// input adapter for contiguous container - template < - class ContiguousContainer, - typename std::enable_if < - not std::is_pointer<ContiguousContainer>::value and - std::is_base_of<std::random_access_iterator_tag, - typename std::iterator_traits<decltype(std::begin(std::declval<ContiguousContainer const>()))>::iterator_category>::value, - int >::type = 0 > + template<class ContiguousContainer, typename + std::enable_if<not std::is_pointer<ContiguousContainer>::value and + std::is_base_of<std::random_access_iterator_tag, typename std::iterator_traits<decltype(std::begin(std::declval<ContiguousContainer const>()))>::iterator_category>::value, + int>::type = 0> input_adapter(const ContiguousContainer& c) : input_adapter(std::begin(c), std::end(c)) {} @@ -1804,6 +1785,12 @@ class lexer 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<int> ranges) @@ -1970,19 +1957,19 @@ class lexer // result of the above calculation yields a proper codepoint assert(0x00 <= codepoint and codepoint <= 0x10FFFF); - // translate code point to bytes + // translate codepoint into bytes if (codepoint < 0x80) { // 1-byte characters: 0xxxxxxx (ASCII) add(codepoint); } - else if (codepoint <= 0x7ff) + else if (codepoint <= 0x7FF) { // 2-byte characters: 110xxxxx 10xxxxxx add(0xC0 | (codepoint >> 6)); add(0x80 | (codepoint & 0x3F)); } - else if (codepoint <= 0xffff) + else if (codepoint <= 0xFFFF) { // 3-byte characters: 1110xxxx 10xxxxxx 10xxxxxx add(0xE0 | (codepoint >> 12)); @@ -2021,12 +2008,12 @@ class lexer case 0x07: case 0x08: case 0x09: - case 0x0a: - case 0x0b: - case 0x0c: - case 0x0d: - case 0x0e: - case 0x0f: + case 0x0A: + case 0x0B: + case 0x0C: + case 0x0D: + case 0x0E: + case 0x0F: case 0x10: case 0x11: case 0x12: @@ -2037,12 +2024,12 @@ class lexer case 0x17: case 0x18: case 0x19: - case 0x1a: - case 0x1b: - case 0x1c: - case 0x1d: - case 0x1e: - case 0x1f: + case 0x1A: + case 0x1B: + case 0x1C: + case 0x1D: + case 0x1E: + case 0x1F: { error_message = "invalid string: control character must be escaped"; return token_type::parse_error; @@ -2058,12 +2045,12 @@ class lexer case 0x27: case 0x28: case 0x29: - case 0x2a: - case 0x2b: - case 0x2c: - case 0x2d: - case 0x2e: - case 0x2f: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: case 0x30: case 0x31: case 0x32: @@ -2074,12 +2061,12 @@ class lexer case 0x37: case 0x38: case 0x39: - case 0x3a: - case 0x3b: - case 0x3c: - case 0x3d: - case 0x3e: - case 0x3f: + case 0x3A: + case 0x3B: + case 0x3C: + case 0x3D: + case 0x3E: + case 0x3F: case 0x40: case 0x41: case 0x42: @@ -2090,12 +2077,12 @@ class lexer case 0x47: case 0x48: case 0x49: - case 0x4a: - case 0x4b: - case 0x4c: - case 0x4d: - case 0x4e: - case 0x4f: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: case 0x50: case 0x51: case 0x52: @@ -2106,11 +2093,11 @@ class lexer case 0x57: case 0x58: case 0x59: - case 0x5a: - case 0x5b: - case 0x5d: - case 0x5e: - case 0x5f: + case 0x5A: + case 0x5B: + case 0x5D: + case 0x5E: + case 0x5F: case 0x60: case 0x61: case 0x62: @@ -2121,12 +2108,12 @@ class lexer case 0x67: case 0x68: case 0x69: - case 0x6a: - case 0x6b: - case 0x6c: - case 0x6d: - case 0x6e: - case 0x6f: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: case 0x70: case 0x71: case 0x72: @@ -2137,48 +2124,48 @@ class lexer case 0x77: case 0x78: case 0x79: - case 0x7a: - case 0x7b: - case 0x7c: - case 0x7d: - case 0x7e: - case 0x7f: + case 0x7A: + case 0x7B: + case 0x7C: + case 0x7D: + case 0x7E: + case 0x7F: { add(current); break; } // 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: + 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_UNLIKELY(not next_byte_in_range({0x80, 0xBF}))) { @@ -2188,7 +2175,7 @@ class lexer } // U+0800..U+0FFF: bytes E0 A0..BF 80..BF - case 0xe0: + case 0xE0: { if (JSON_UNLIKELY(not (next_byte_in_range({0xA0, 0xBF, 0x80, 0xBF})))) { @@ -2199,20 +2186,20 @@ class lexer // 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: + 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_UNLIKELY(not (next_byte_in_range({0x80, 0xBF, 0x80, 0xBF})))) { @@ -2222,7 +2209,7 @@ class lexer } // U+D000..U+D7FF: bytes ED 80..9F 80..BF - case 0xed: + case 0xED: { if (JSON_UNLIKELY(not (next_byte_in_range({0x80, 0x9F, 0x80, 0xBF})))) { @@ -2232,7 +2219,7 @@ class lexer } // U+10000..U+3FFFF F0 90..BF 80..BF 80..BF - case 0xf0: + case 0xF0: { if (JSON_UNLIKELY(not (next_byte_in_range({0x90, 0xBF, 0x80, 0xBF, 0x80, 0xBF})))) { @@ -2242,9 +2229,9 @@ class lexer } // U+40000..U+FFFFF F1..F3 80..BF 80..BF 80..BF - case 0xf1: - case 0xf2: - case 0xf3: + case 0xF1: + case 0xF2: + case 0xF3: { if (JSON_UNLIKELY(not (next_byte_in_range({0x80, 0xBF, 0x80, 0xBF, 0x80, 0xBF})))) { @@ -2254,7 +2241,7 @@ class lexer } // U+100000..U+10FFFF F4 80..8F 80..BF 80..BF - case 0xf4: + case 0xF4: { if (JSON_UNLIKELY(not (next_byte_in_range({0x80, 0x8F, 0x80, 0xBF, 0x80, 0xBF})))) { @@ -2772,9 +2759,9 @@ scan_number_done: { // escape control characters std::string result; - for (auto c : token_string) + for (const auto c : token_string) { - if ('\x00' <= c and c <= '\x1f') + if ('\x00' <= c and c <= '\x1F') { // escape control characters std::stringstream ss; @@ -2877,10 +2864,10 @@ scan_number_done: std::size_t chars_read = 0; /// raw input token string (for error messages) - std::vector<char> token_string { }; + std::vector<char> token_string {}; /// buffer for variable-length tokens (numbers, strings) - std::string yytext { }; + std::string yytext {}; /// a description of occurred lexer errors const char* error_message = ""; @@ -3281,7 +3268,7 @@ class parser } /*! - @brief the acutal acceptor + @brief the actual acceptor @invariant 1. The last token is not yet processed. Therefore, the caller of this function must make sure a token has been read. @@ -3539,7 +3526,7 @@ class primitive_iterator_t return *this; } - primitive_iterator_t operator++(int) + primitive_iterator_t const operator++(int) { auto result = *this; m_it++; @@ -3552,7 +3539,7 @@ class primitive_iterator_t return *this; } - primitive_iterator_t operator--(int) + primitive_iterator_t const operator--(int) { auto result = *this; m_it--; @@ -3618,7 +3605,7 @@ This class implements a both iterators (iterator and const_iterator) for the iterators in version 3.0.0 (see https://github.com/nlohmann/json/issues/593) */ template<typename BasicJsonType> -class iter_impl : public std::iterator<std::bidirectional_iterator_tag, BasicJsonType> +class iter_impl { /// allow basic_json to access private members friend iter_impl<typename std::conditional<std::is_const<BasicJsonType>::value, typename std::remove_const<BasicJsonType>::type, const BasicJsonType>::type>; @@ -3632,6 +3619,14 @@ class iter_impl : public std::iterator<std::bidirectional_iterator_tag, BasicJso "iter_impl only accepts (const) basic_json"); public: + + /// 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 @@ -3855,7 +3850,7 @@ class iter_impl : public std::iterator<std::bidirectional_iterator_tag, BasicJso @brief post-increment (it++) @pre The iterator is initialized; i.e. `m_object != nullptr`. */ - iter_impl operator++(int) + iter_impl const operator++(int) { auto result = *this; ++(*this); @@ -3898,7 +3893,7 @@ class iter_impl : public std::iterator<std::bidirectional_iterator_tag, BasicJso @brief post-decrement (it--) @pre The iterator is initialized; i.e. `m_object != nullptr`. */ - iter_impl operator--(int) + iter_impl const operator--(int) { auto result = *this; --(*this); @@ -4291,7 +4286,7 @@ class json_reverse_iterator : public std::reverse_iterator<Base> { public: using difference_type = std::ptrdiff_t; - /// shortcut to the reverse iterator adaptor + /// shortcut to the reverse iterator adapter using base_iterator = std::reverse_iterator<Base>; /// the reference type for the pointed-to element using reference = typename Base::reference; @@ -4304,7 +4299,7 @@ class json_reverse_iterator : public std::reverse_iterator<Base> json_reverse_iterator(const base_iterator& it) noexcept : base_iterator(it) {} /// post-increment (it++) - json_reverse_iterator operator++(int) + json_reverse_iterator const operator++(int) { return static_cast<json_reverse_iterator>(base_iterator::operator++(1)); } @@ -4316,7 +4311,7 @@ class json_reverse_iterator : public std::reverse_iterator<Base> } /// post-decrement (it--) - json_reverse_iterator operator--(int) + json_reverse_iterator const operator--(int) { return static_cast<json_reverse_iterator>(base_iterator::operator--(1)); } @@ -4576,12 +4571,12 @@ class binary_reader case 0x07: case 0x08: case 0x09: - case 0x0a: - case 0x0b: - case 0x0c: - case 0x0d: - case 0x0e: - case 0x0f: + case 0x0A: + case 0x0B: + case 0x0C: + case 0x0D: + case 0x0E: + case 0x0F: case 0x10: case 0x11: case 0x12: @@ -4598,10 +4593,10 @@ class binary_reader case 0x19: // Unsigned integer (two-byte uint16_t follows) return get_number<uint16_t>(); - case 0x1a: // Unsigned integer (four-byte uint32_t follows) + case 0x1A: // Unsigned integer (four-byte uint32_t follows) return get_number<uint32_t>(); - case 0x1b: // Unsigned integer (eight-byte uint64_t follows) + case 0x1B: // Unsigned integer (eight-byte uint64_t follows) return get_number<uint64_t>(); // Negative integer -1-0x00..-1-0x17 (-1..-24) @@ -4615,12 +4610,12 @@ class binary_reader case 0x27: case 0x28: case 0x29: - case 0x2a: - case 0x2b: - case 0x2c: - case 0x2d: - case 0x2e: - case 0x2f: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: case 0x30: case 0x31: case 0x32: @@ -4642,12 +4637,12 @@ class binary_reader return static_cast<number_integer_t>(-1) - get_number<uint16_t>(); } - case 0x3a: // Negative integer -1-n (four-byte uint32_t follows) + case 0x3A: // Negative integer -1-n (four-byte uint32_t follows) { return static_cast<number_integer_t>(-1) - get_number<uint32_t>(); } - case 0x3b: // Negative integer -1-n (eight-byte uint64_t follows) + case 0x3B: // Negative integer -1-n (eight-byte uint64_t follows) { return static_cast<number_integer_t>(-1) - static_cast<number_integer_t>(get_number<uint64_t>()); @@ -4664,12 +4659,12 @@ class binary_reader case 0x67: case 0x68: case 0x69: - case 0x6a: - case 0x6b: - case 0x6c: - case 0x6d: - case 0x6e: - case 0x6f: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: case 0x70: case 0x71: case 0x72: @@ -4680,9 +4675,9 @@ class binary_reader 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) + 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) { return get_cbor_string(); } @@ -4698,12 +4693,12 @@ class binary_reader case 0x87: case 0x88: case 0x89: - case 0x8a: - case 0x8b: - case 0x8c: - case 0x8d: - case 0x8e: - case 0x8f: + case 0x8A: + case 0x8B: + case 0x8C: + case 0x8D: + case 0x8E: + case 0x8F: case 0x90: case 0x91: case 0x92: @@ -4713,7 +4708,7 @@ class binary_reader case 0x96: case 0x97: { - return get_cbor_array(current & 0x1f); + return get_cbor_array(current & 0x1F); } case 0x98: // array (one-byte uint8_t for n follows) @@ -4726,20 +4721,20 @@ class binary_reader return get_cbor_array(get_number<uint16_t>()); } - case 0x9a: // array (four-byte uint32_t for n follow) + case 0x9A: // array (four-byte uint32_t for n follow) { return get_cbor_array(get_number<uint32_t>()); } - case 0x9b: // array (eight-byte uint64_t for n follow) + case 0x9B: // array (eight-byte uint64_t for n follow) { return get_cbor_array(get_number<uint64_t>()); } - case 0x9f: // array (indefinite length) + case 0x9F: // array (indefinite length) { BasicJsonType result = value_t::array; - while (get() != 0xff) + while (get() != 0xFF) { result.push_back(parse_cbor_internal(false)); } @@ -4747,58 +4742,58 @@ class binary_reader } // 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(current & 0x1f); - } - - case 0xb8: // map (one-byte uint8_t for n follows) + 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(current & 0x1F); + } + + case 0xB8: // map (one-byte uint8_t for n follows) { return get_cbor_object(get_number<uint8_t>()); } - case 0xb9: // map (two-byte uint16_t for n follow) + case 0xB9: // map (two-byte uint16_t for n follow) { return get_cbor_object(get_number<uint16_t>()); } - case 0xba: // map (four-byte uint32_t for n follow) + case 0xBA: // map (four-byte uint32_t for n follow) { return get_cbor_object(get_number<uint32_t>()); } - case 0xbb: // map (eight-byte uint64_t for n follow) + case 0xBB: // map (eight-byte uint64_t for n follow) { return get_cbor_object(get_number<uint64_t>()); } - case 0xbf: // map (indefinite length) + case 0xBF: // map (indefinite length) { BasicJsonType result = value_t::object; - while (get() != 0xff) + while (get() != 0xFF) { auto key = get_cbor_string(); result[key] = parse_cbor_internal(); @@ -4806,22 +4801,22 @@ class binary_reader return result; } - case 0xf4: // false + case 0xF4: // false { return false; } - case 0xf5: // true + case 0xF5: // true { return true; } - case 0xf6: // null + case 0xF6: // null { return value_t::null; } - case 0xf9: // Half-Precision Float (two-byte IEEE 754) + case 0xF9: // Half-Precision Float (two-byte IEEE 754) { const int byte1 = get(); check_eof(); @@ -4837,8 +4832,8 @@ class binary_reader // half-precision floating-point numbers in the C language // is shown in Fig. 3. const int half = (byte1 << 8) + byte2; - const int exp = (half >> 10) & 0x1f; - const int mant = half & 0x3ff; + const int exp = (half >> 10) & 0x1F; + const int mant = half & 0x3FF; double val; if (exp == 0) { @@ -4856,12 +4851,12 @@ class binary_reader return (half & 0x8000) != 0 ? -val : val; } - case 0xfa: // Single-Precision Float (four-byte IEEE 754) + case 0xFA: // Single-Precision Float (four-byte IEEE 754) { return get_number<float>(); } - case 0xfb: // Double-Precision Float (eight-byte IEEE 754) + case 0xFB: // Double-Precision Float (eight-byte IEEE 754) { return get_number<double>(); } @@ -4869,7 +4864,7 @@ class binary_reader default: // anything else (0xFF is handled inside the other types) { std::stringstream ss; - ss << std::setw(2) << std::setfill('0') << std::hex << current; + ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << current; JSON_THROW(parse_error::create(112, chars_read, "error reading CBOR; last byte: 0x" + ss.str())); } } @@ -4894,12 +4889,12 @@ class binary_reader case 0x07: case 0x08: case 0x09: - case 0x0a: - case 0x0b: - case 0x0c: - case 0x0d: - case 0x0e: - case 0x0f: + case 0x0A: + case 0x0B: + case 0x0C: + case 0x0D: + case 0x0E: + case 0x0F: case 0x10: case 0x11: case 0x12: @@ -4910,12 +4905,12 @@ class binary_reader case 0x17: case 0x18: case 0x19: - case 0x1a: - case 0x1b: - case 0x1c: - case 0x1d: - case 0x1e: - case 0x1f: + case 0x1A: + case 0x1B: + case 0x1C: + case 0x1D: + case 0x1E: + case 0x1F: case 0x20: case 0x21: case 0x22: @@ -4926,12 +4921,12 @@ class binary_reader case 0x27: case 0x28: case 0x29: - case 0x2a: - case 0x2b: - case 0x2c: - case 0x2d: - case 0x2e: - case 0x2f: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: case 0x30: case 0x31: case 0x32: @@ -4942,12 +4937,12 @@ class binary_reader case 0x37: case 0x38: case 0x39: - case 0x3a: - case 0x3b: - case 0x3c: - case 0x3d: - case 0x3e: - case 0x3f: + case 0x3A: + case 0x3B: + case 0x3C: + case 0x3D: + case 0x3E: + case 0x3F: case 0x40: case 0x41: case 0x42: @@ -4958,12 +4953,12 @@ class binary_reader case 0x47: case 0x48: case 0x49: - case 0x4a: - case 0x4b: - case 0x4c: - case 0x4d: - case 0x4e: - case 0x4f: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: case 0x50: case 0x51: case 0x52: @@ -4974,12 +4969,12 @@ class binary_reader case 0x57: case 0x58: case 0x59: - case 0x5a: - case 0x5b: - case 0x5c: - case 0x5d: - case 0x5e: - case 0x5f: + case 0x5A: + case 0x5B: + case 0x5C: + case 0x5D: + case 0x5E: + case 0x5F: case 0x60: case 0x61: case 0x62: @@ -4990,12 +4985,12 @@ class binary_reader case 0x67: case 0x68: case 0x69: - case 0x6a: - case 0x6b: - case 0x6c: - case 0x6d: - case 0x6e: - case 0x6f: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: case 0x70: case 0x71: case 0x72: @@ -5006,12 +5001,12 @@ class binary_reader case 0x77: case 0x78: case 0x79: - case 0x7a: - case 0x7b: - case 0x7c: - case 0x7d: - case 0x7e: - case 0x7f: + case 0x7A: + case 0x7B: + case 0x7C: + case 0x7D: + case 0x7E: + case 0x7F: return static_cast<number_unsigned_t>(current); // fixmap @@ -5025,14 +5020,14 @@ class binary_reader case 0x87: case 0x88: case 0x89: - case 0x8a: - case 0x8b: - case 0x8c: - case 0x8d: - case 0x8e: - case 0x8f: + case 0x8A: + case 0x8B: + case 0x8C: + case 0x8D: + case 0x8E: + case 0x8F: { - return get_msgpack_object(current & 0x0f); + return get_msgpack_object(current & 0x0F); } // fixarray @@ -5046,154 +5041,154 @@ class binary_reader case 0x97: case 0x98: case 0x99: - case 0x9a: - case 0x9b: - case 0x9c: - case 0x9d: - case 0x9e: - case 0x9f: + case 0x9A: + case 0x9B: + case 0x9C: + case 0x9D: + case 0x9E: + case 0x9F: { - return get_msgpack_array(current & 0x0f); + return get_msgpack_array(current & 0x0F); } // 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 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_msgpack_string(); - case 0xc0: // nil + case 0xC0: // nil return value_t::null; - case 0xc2: // false + case 0xC2: // false return false; - case 0xc3: // true + case 0xC3: // true return true; - case 0xca: // float 32 + case 0xCA: // float 32 return get_number<float>(); - case 0xcb: // float 64 + case 0xCB: // float 64 return get_number<double>(); - case 0xcc: // uint 8 + case 0xCC: // uint 8 return get_number<uint8_t>(); - case 0xcd: // uint 16 + case 0xCD: // uint 16 return get_number<uint16_t>(); - case 0xce: // uint 32 + case 0xCE: // uint 32 return get_number<uint32_t>(); - case 0xcf: // uint 64 + case 0xCF: // uint 64 return get_number<uint64_t>(); - case 0xd0: // int 8 + case 0xD0: // int 8 return get_number<int8_t>(); - case 0xd1: // int 16 + case 0xD1: // int 16 return get_number<int16_t>(); - case 0xd2: // int 32 + case 0xD2: // int 32 return get_number<int32_t>(); - case 0xd3: // int 64 + case 0xD3: // int 64 return get_number<int64_t>(); - case 0xd9: // str 8 - case 0xda: // str 16 - case 0xdb: // str 32 + case 0xD9: // str 8 + case 0xDA: // str 16 + case 0xDB: // str 32 return get_msgpack_string(); - case 0xdc: // array 16 + case 0xDC: // array 16 { return get_msgpack_array(get_number<uint16_t>()); } - case 0xdd: // array 32 + case 0xDD: // array 32 { return get_msgpack_array(get_number<uint32_t>()); } - case 0xde: // map 16 + case 0xDE: // map 16 { return get_msgpack_object(get_number<uint16_t>()); } - case 0xdf: // map 32 + case 0xDF: // map 32 { return get_msgpack_object(get_number<uint32_t>()); } // positive 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: + 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 static_cast<int8_t>(current); default: // anything else { std::stringstream ss; - ss << std::setw(2) << std::setfill('0') << std::hex << current; + ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << current; JSON_THROW(parse_error::create(112, chars_read, "error reading MessagePack; last byte: 0x" + ss.str())); } @@ -5309,12 +5304,12 @@ class binary_reader case 0x67: case 0x68: case 0x69: - case 0x6a: - case 0x6b: - case 0x6c: - case 0x6d: - case 0x6e: - case 0x6f: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: case 0x70: case 0x71: case 0x72: @@ -5324,7 +5319,7 @@ class binary_reader case 0x76: case 0x77: { - return get_string(current & 0x1f); + return get_string(current & 0x1F); } case 0x78: // UTF-8 string (one-byte uint8_t for n follows) @@ -5337,20 +5332,20 @@ class binary_reader return get_string(get_number<uint16_t>()); } - case 0x7a: // UTF-8 string (four-byte uint32_t for n follow) + case 0x7A: // UTF-8 string (four-byte uint32_t for n follow) { return get_string(get_number<uint32_t>()); } - case 0x7b: // UTF-8 string (eight-byte uint64_t for n follow) + case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow) { return get_string(get_number<uint64_t>()); } - case 0x7f: // UTF-8 string (indefinite length) + case 0x7F: // UTF-8 string (indefinite length) { std::string result; - while (get() != 0xff) + while (get() != 0xFF) { check_eof(); result.push_back(static_cast<char>(current)); @@ -5361,7 +5356,7 @@ class binary_reader default: { std::stringstream ss; - ss << std::setw(2) << std::setfill('0') << std::hex << current; + ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << current; JSON_THROW(parse_error::create(113, chars_read, "expected a CBOR string; last byte: 0x" + ss.str())); } } @@ -5412,53 +5407,53 @@ class binary_reader 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(current & 0x1f); - } - - case 0xd9: // str 8 + 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(current & 0x1F); + } + + case 0xD9: // str 8 { return get_string(get_number<uint8_t>()); } - case 0xda: // str 16 + case 0xDA: // str 16 { return get_string(get_number<uint16_t>()); } - case 0xdb: // str 32 + case 0xDB: // str 32 { return get_string(get_number<uint32_t>()); } @@ -5466,7 +5461,7 @@ class binary_reader default: { std::stringstream ss; - ss << std::setw(2) << std::setfill('0') << std::hex << current; + ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << current; JSON_THROW(parse_error::create(113, chars_read, "expected a MessagePack string; last byte: 0x" + ss.str())); } @@ -5562,15 +5557,15 @@ class binary_writer { case value_t::null: { - oa->write_character(static_cast<CharType>(0xf6)); + oa->write_character(static_cast<CharType>(0xF6)); break; } case value_t::boolean: { oa->write_character(j.m_value.boolean - ? static_cast<CharType>(0xf5) - : static_cast<CharType>(0xf4)); + ? static_cast<CharType>(0xF5) + : static_cast<CharType>(0xF4)); break; } @@ -5597,12 +5592,12 @@ class binary_writer } else if (j.m_value.number_integer <= (std::numeric_limits<uint32_t>::max)()) { - oa->write_character(static_cast<CharType>(0x1a)); + oa->write_character(static_cast<CharType>(0x1A)); write_number(static_cast<uint32_t>(j.m_value.number_integer)); } else { - oa->write_character(static_cast<CharType>(0x1b)); + oa->write_character(static_cast<CharType>(0x1B)); write_number(static_cast<uint64_t>(j.m_value.number_integer)); } } @@ -5627,12 +5622,12 @@ class binary_writer } else if (positive_number <= (std::numeric_limits<uint32_t>::max)()) { - oa->write_character(static_cast<CharType>(0x3a)); + oa->write_character(static_cast<CharType>(0x3A)); write_number(static_cast<uint32_t>(positive_number)); } else { - oa->write_character(static_cast<CharType>(0x3b)); + oa->write_character(static_cast<CharType>(0x3B)); write_number(static_cast<uint64_t>(positive_number)); } } @@ -5657,12 +5652,12 @@ class binary_writer } else if (j.m_value.number_unsigned <= (std::numeric_limits<uint32_t>::max)()) { - oa->write_character(static_cast<CharType>(0x1a)); + oa->write_character(static_cast<CharType>(0x1A)); write_number(static_cast<uint32_t>(j.m_value.number_unsigned)); } else { - oa->write_character(static_cast<CharType>(0x1b)); + oa->write_character(static_cast<CharType>(0x1B)); write_number(static_cast<uint64_t>(j.m_value.number_unsigned)); } break; @@ -5670,7 +5665,7 @@ class binary_writer case value_t::number_float: // Double-Precision Float { - oa->write_character(static_cast<CharType>(0xfb)); + oa->write_character(static_cast<CharType>(0xFB)); write_number(j.m_value.number_float); break; } @@ -5683,25 +5678,25 @@ class binary_writer { write_number(static_cast<uint8_t>(0x60 + N)); } - else if (N <= 0xff) + else if (N <= 0xFF) { oa->write_character(static_cast<CharType>(0x78)); write_number(static_cast<uint8_t>(N)); } - else if (N <= 0xffff) + else if (N <= 0xFFFF) { oa->write_character(static_cast<CharType>(0x79)); write_number(static_cast<uint16_t>(N)); } - else if (N <= 0xffffffff) + else if (N <= 0xFFFFFFFF) { - oa->write_character(static_cast<CharType>(0x7a)); + oa->write_character(static_cast<CharType>(0x7A)); write_number(static_cast<uint32_t>(N)); } // LCOV_EXCL_START - else if (N <= 0xffffffffffffffff) + else if (N <= 0xFFFFFFFFFFFFFFFF) { - oa->write_character(static_cast<CharType>(0x7b)); + oa->write_character(static_cast<CharType>(0x7B)); write_number(static_cast<uint64_t>(N)); } // LCOV_EXCL_STOP @@ -5721,25 +5716,25 @@ class binary_writer { write_number(static_cast<uint8_t>(0x80 + N)); } - else if (N <= 0xff) + else if (N <= 0xFF) { oa->write_character(static_cast<CharType>(0x98)); write_number(static_cast<uint8_t>(N)); } - else if (N <= 0xffff) + else if (N <= 0xFFFF) { oa->write_character(static_cast<CharType>(0x99)); write_number(static_cast<uint16_t>(N)); } - else if (N <= 0xffffffff) + else if (N <= 0xFFFFFFFF) { - oa->write_character(static_cast<CharType>(0x9a)); + oa->write_character(static_cast<CharType>(0x9A)); write_number(static_cast<uint32_t>(N)); } // LCOV_EXCL_START - else if (N <= 0xffffffffffffffff) + else if (N <= 0xFFFFFFFFFFFFFFFF) { - oa->write_character(static_cast<CharType>(0x9b)); + oa->write_character(static_cast<CharType>(0x9B)); write_number(static_cast<uint64_t>(N)); } // LCOV_EXCL_STOP @@ -5758,27 +5753,27 @@ class binary_writer const auto N = j.m_value.object->size(); if (N <= 0x17) { - write_number(static_cast<uint8_t>(0xa0 + N)); + write_number(static_cast<uint8_t>(0xA0 + N)); } - else if (N <= 0xff) + else if (N <= 0xFF) { - oa->write_character(static_cast<CharType>(0xb8)); + oa->write_character(static_cast<CharType>(0xB8)); write_number(static_cast<uint8_t>(N)); } - else if (N <= 0xffff) + else if (N <= 0xFFFF) { - oa->write_character(static_cast<CharType>(0xb9)); + oa->write_character(static_cast<CharType>(0xB9)); write_number(static_cast<uint16_t>(N)); } - else if (N <= 0xffffffff) + else if (N <= 0xFFFFFFFF) { - oa->write_character(static_cast<CharType>(0xba)); + oa->write_character(static_cast<CharType>(0xBA)); write_number(static_cast<uint32_t>(N)); } // LCOV_EXCL_START - else if (N <= 0xffffffffffffffff) + else if (N <= 0xFFFFFFFFFFFFFFFF) { - oa->write_character(static_cast<CharType>(0xbb)); + oa->write_character(static_cast<CharType>(0xBB)); write_number(static_cast<uint64_t>(N)); } // LCOV_EXCL_STOP @@ -5806,15 +5801,15 @@ class binary_writer { case value_t::null: // nil { - oa->write_character(static_cast<CharType>(0xc0)); + oa->write_character(static_cast<CharType>(0xC0)); break; } case value_t::boolean: // true and false { oa->write_character(j.m_value.boolean - ? static_cast<CharType>(0xc3) - : static_cast<CharType>(0xc2)); + ? static_cast<CharType>(0xC3) + : static_cast<CharType>(0xC2)); break; } @@ -5833,25 +5828,25 @@ class binary_writer else if (j.m_value.number_unsigned <= (std::numeric_limits<uint8_t>::max)()) { // uint 8 - oa->write_character(static_cast<CharType>(0xcc)); + oa->write_character(static_cast<CharType>(0xCC)); write_number(static_cast<uint8_t>(j.m_value.number_integer)); } else if (j.m_value.number_unsigned <= (std::numeric_limits<uint16_t>::max)()) { // uint 16 - oa->write_character(static_cast<CharType>(0xcd)); + oa->write_character(static_cast<CharType>(0xCD)); write_number(static_cast<uint16_t>(j.m_value.number_integer)); } else if (j.m_value.number_unsigned <= (std::numeric_limits<uint32_t>::max)()) { // uint 32 - oa->write_character(static_cast<CharType>(0xce)); + oa->write_character(static_cast<CharType>(0xCE)); write_number(static_cast<uint32_t>(j.m_value.number_integer)); } else if (j.m_value.number_unsigned <= (std::numeric_limits<uint64_t>::max)()) { // uint 64 - oa->write_character(static_cast<CharType>(0xcf)); + oa->write_character(static_cast<CharType>(0xCF)); write_number(static_cast<uint64_t>(j.m_value.number_integer)); } } @@ -5866,28 +5861,28 @@ class binary_writer j.m_value.number_integer <= (std::numeric_limits<int8_t>::max)()) { // int 8 - oa->write_character(static_cast<CharType>(0xd0)); + oa->write_character(static_cast<CharType>(0xD0)); write_number(static_cast<int8_t>(j.m_value.number_integer)); } else if (j.m_value.number_integer >= (std::numeric_limits<int16_t>::min)() and j.m_value.number_integer <= (std::numeric_limits<int16_t>::max)()) { // int 16 - oa->write_character(static_cast<CharType>(0xd1)); + oa->write_character(static_cast<CharType>(0xD1)); write_number(static_cast<int16_t>(j.m_value.number_integer)); } else if (j.m_value.number_integer >= (std::numeric_limits<int32_t>::min)() and j.m_value.number_integer <= (std::numeric_limits<int32_t>::max)()) { // int 32 - oa->write_character(static_cast<CharType>(0xd2)); + oa->write_character(static_cast<CharType>(0xD2)); write_number(static_cast<int32_t>(j.m_value.number_integer)); } else if (j.m_value.number_integer >= (std::numeric_limits<int64_t>::min)() and j.m_value.number_integer <= (std::numeric_limits<int64_t>::max)()) { // int 64 - oa->write_character(static_cast<CharType>(0xd3)); + oa->write_character(static_cast<CharType>(0xD3)); write_number(static_cast<int64_t>(j.m_value.number_integer)); } } @@ -5904,25 +5899,25 @@ class binary_writer else if (j.m_value.number_unsigned <= (std::numeric_limits<uint8_t>::max)()) { // uint 8 - oa->write_character(static_cast<CharType>(0xcc)); + oa->write_character(static_cast<CharType>(0xCC)); write_number(static_cast<uint8_t>(j.m_value.number_integer)); } else if (j.m_value.number_unsigned <= (std::numeric_limits<uint16_t>::max)()) { // uint 16 - oa->write_character(static_cast<CharType>(0xcd)); + oa->write_character(static_cast<CharType>(0xCD)); write_number(static_cast<uint16_t>(j.m_value.number_integer)); } else if (j.m_value.number_unsigned <= (std::numeric_limits<uint32_t>::max)()) { // uint 32 - oa->write_character(static_cast<CharType>(0xce)); + oa->write_character(static_cast<CharType>(0xCE)); write_number(static_cast<uint32_t>(j.m_value.number_integer)); } else if (j.m_value.number_unsigned <= (std::numeric_limits<uint64_t>::max)()) { // uint 64 - oa->write_character(static_cast<CharType>(0xcf)); + oa->write_character(static_cast<CharType>(0xCF)); write_number(static_cast<uint64_t>(j.m_value.number_integer)); } break; @@ -5930,7 +5925,7 @@ class binary_writer case value_t::number_float: // float 64 { - oa->write_character(static_cast<CharType>(0xcb)); + oa->write_character(static_cast<CharType>(0xCB)); write_number(j.m_value.number_float); break; } @@ -5942,24 +5937,24 @@ class binary_writer if (N <= 31) { // fixstr - write_number(static_cast<uint8_t>(0xa0 | N)); + write_number(static_cast<uint8_t>(0xA0 | N)); } else if (N <= 255) { // str 8 - oa->write_character(static_cast<CharType>(0xd9)); + oa->write_character(static_cast<CharType>(0xD9)); write_number(static_cast<uint8_t>(N)); } else if (N <= 65535) { // str 16 - oa->write_character(static_cast<CharType>(0xda)); + oa->write_character(static_cast<CharType>(0xDA)); write_number(static_cast<uint16_t>(N)); } else if (N <= 4294967295) { // str 32 - oa->write_character(static_cast<CharType>(0xdb)); + oa->write_character(static_cast<CharType>(0xDB)); write_number(static_cast<uint32_t>(N)); } @@ -5979,16 +5974,16 @@ class binary_writer // fixarray write_number(static_cast<uint8_t>(0x90 | N)); } - else if (N <= 0xffff) + else if (N <= 0xFFFF) { // array 16 - oa->write_character(static_cast<CharType>(0xdc)); + oa->write_character(static_cast<CharType>(0xDC)); write_number(static_cast<uint16_t>(N)); } - else if (N <= 0xffffffff) + else if (N <= 0xFFFFFFFF) { // array 32 - oa->write_character(static_cast<CharType>(0xdd)); + oa->write_character(static_cast<CharType>(0xDD)); write_number(static_cast<uint32_t>(N)); } @@ -6007,18 +6002,18 @@ class binary_writer if (N <= 15) { // fixmap - write_number(static_cast<uint8_t>(0x80 | (N & 0xf))); + write_number(static_cast<uint8_t>(0x80 | (N & 0xF))); } else if (N <= 65535) { // map 16 - oa->write_character(static_cast<CharType>(0xde)); + oa->write_character(static_cast<CharType>(0xDE)); write_number(static_cast<uint16_t>(N)); } else if (N <= 4294967295) { // map 32 - oa->write_character(static_cast<CharType>(0xdf)); + oa->write_character(static_cast<CharType>(0xDF)); write_number(static_cast<uint32_t>(N)); } @@ -6363,9 +6358,9 @@ class serializer case 0x05: case 0x06: case 0x07: - case 0x0b: - case 0x0e: - case 0x0f: + case 0x0B: + case 0x0E: + case 0x0F: case 0x10: case 0x11: case 0x12: @@ -6376,12 +6371,12 @@ class serializer case 0x17: case 0x18: case 0x19: - case 0x1a: - case 0x1b: - case 0x1c: - case 0x1d: - case 0x1e: - case 0x1f: + case 0x1A: + case 0x1B: + case 0x1C: + case 0x1D: + case 0x1E: + case 0x1F: { // from c (1 byte) to \uxxxx (6 bytes) res += 5; @@ -6393,12 +6388,8 @@ class serializer if (ensure_ascii and (s[i] & 0x80 or s[i] == 0x7F)) { const auto bytes = bytes_following(static_cast<uint8_t>(s[i])); - if (bytes == std::string::npos) - { - // invalid characters are treated as is, so no - // additional space will be used - break; - } + // invalid characters will be detected by throw_if_invalid_utf8 + assert (bytes != std::string::npos); if (bytes == 3) { @@ -6492,6 +6483,8 @@ class serializer */ void dump_escaped(const string_t& s, const bool ensure_ascii) const { + throw_if_invalid_utf8(s); + const auto space = extra_space(s, ensure_ascii); if (space == 0) { @@ -6514,7 +6507,7 @@ class serializer break; } - case '\\': // reverse solidus (0x5c) + case '\\': // reverse solidus (0x5C) { // nothing to change pos += 2; @@ -6528,21 +6521,21 @@ class serializer break; } - case '\f': // formfeed (0x0c) + case '\f': // formfeed (0x0C) { result[pos + 1] = 'f'; pos += 2; break; } - case '\n': // newline (0x0a) + case '\n': // newline (0x0A) { result[pos + 1] = 'n'; pos += 2; break; } - case '\r': // carriage return (0x0d) + case '\r': // carriage return (0x0D) { result[pos + 1] = 'r'; pos += 2; @@ -6564,21 +6557,18 @@ class serializer (ensure_ascii and (s[i] & 0x80 or s[i] == 0x7F))) { const auto bytes = bytes_following(static_cast<uint8_t>(s[i])); - if (bytes == std::string::npos) - { - // copy invalid character as is - result[pos++] = s[i]; - break; - } + // invalid characters will be detected by throw_if_invalid_utf8 + assert (bytes != std::string::npos); // check that the additional bytes are present assert(i + bytes < s.size()); - // to use \uxxxx escaping, we first need to caluclate + // to use \uxxxx escaping, we first need to calculate // the codepoint from the UTF-8 bytes int codepoint = 0; - assert(0 <= bytes and bytes <= 3); + // bytes is unsigned type: + assert(bytes <= 3); switch (bytes) { case 0: @@ -6641,11 +6631,10 @@ class serializer @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_same<NumberType, number_unsigned_t>::value or - std::is_same<NumberType, number_integer_t>::value, - int> = 0 > + template<typename NumberType, detail::enable_if_t< + std::is_same<NumberType, number_unsigned_t>::value or + std::is_same<NumberType, number_integer_t>::value, + int> = 0> void dump_integer(NumberType x) { // special case for "0" @@ -6743,6 +6732,87 @@ class serializer } } + /*! + @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] byte next byte to decode + + @note The function has been edited: a std::array is used and the code + point is not calculated. + + @copyright Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de> + @sa http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ + */ + static void decode(uint8_t& state, const uint8_t byte) + { + static const std::array<uint8_t, 400> 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 + } + }; + + const uint8_t type = utf8d[byte]; + state = utf8d[256u + state * 16u + type]; + } + + /*! + @brief throw an exception if a string is not UTF-8 encoded + + @param[in] str UTF-8 string to check + @throw type_error.316 if passed string is not UTF-8 encoded + + @since version 3.0.0 + */ + static void throw_if_invalid_utf8(const std::string& str) + { + // start with state 0 (= accept) + uint8_t state = 0; + + for (size_t i = 0; i < str.size(); ++i) + { + const auto byte = static_cast<uint8_t>(str[i]); + decode(state, byte); + if (state == 1) + { + // state 1 means reject + std::stringstream ss; + ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << static_cast<int>(byte); + JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + ss.str())); + } + } + + if (state != 0) + { + // we finish reading, but do not accept: string was incomplete + std::stringstream ss; + ss << std::setw(2) << std::uppercase << std::setfill('0') << std::hex << static_cast<int>(static_cast<uint8_t>(str.back())); + JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + ss.str())); + } + } + private: /// the output of the serializer output_adapter_t<char> o = nullptr; @@ -6771,27 +6841,20 @@ class json_ref using value_type = BasicJsonType; json_ref(value_type&& value) - : owned_value(std::move(value)), - value_ref(&owned_value), - is_rvalue(true) + : owned_value(std::move(value)), value_ref(&owned_value), is_rvalue(true) {} json_ref(const value_type& value) - : value_ref(const_cast<value_type*>(&value)), - is_rvalue(false) + : value_ref(const_cast<value_type*>(&value)), is_rvalue(false) {} json_ref(std::initializer_list<json_ref> init) - : owned_value(init), - value_ref(&owned_value), - is_rvalue(true) + : owned_value(init), value_ref(&owned_value), is_rvalue(true) {} - template <class... Args> + template<class... Args> json_ref(Args&& ... args) - : owned_value(std::forward<Args>(args)...), - value_ref(&owned_value), - is_rvalue(true) + : owned_value(std::forward<Args>(args)...), value_ref(&owned_value), is_rvalue(true) {} // class should be movable only @@ -6949,6 +7012,27 @@ class json_pointer return to_string(); } + /*! + @param[in] s reference token to be converted into an array index + + @return integer representation of @a s + + @throw out_of_range.404 if string @a s could not be converted to an integer + */ + static int array_index(const std::string& s) + { + size_t processed_chars = 0; + const int res = std::stoi(s, &processed_chars); + + // check if the string was completely read + if (JSON_UNLIKELY(processed_chars != s.size())) + { + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'")); + } + + return res; + } + private: /*! @brief remove and return last reference pointer @@ -6984,7 +7068,6 @@ class json_pointer return result; } - /*! @brief create and return a reference to the pointed to value @@ -7320,11 +7403,11 @@ class basic_json public: using value_t = detail::value_t; - // forward declarations + /// @copydoc nlohmann::json_pointer using json_pointer = ::nlohmann::json_pointer; template<typename T, typename SFINAE> using json_serializer = JSONSerializer<T, SFINAE>; - + /// helper type for initializer lists of basic_json values using initializer_list_t = std::initializer_list<detail::json_ref<basic_json>>; //////////////// @@ -7436,7 +7519,7 @@ class basic_json result["url"] = "https://github.com/nlohmann/json"; result["version"] = { - {"string", "2.1.1"}, {"major", 2}, {"minor", 1}, {"patch", 1} + {"string", "3.0.1"}, {"major", 3}, {"minor", 0}, {"patch", 1} }; #ifdef _WIN32 @@ -7489,6 +7572,14 @@ class basic_json /// the template arguments passed to class @ref basic_json. /// @{ +#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<StringType>; +#endif + /*! @brief a type for an object @@ -7572,14 +7663,6 @@ class basic_json 7159](http://rfc7159.net/rfc7159), because any order implements the specified "unordered" nature of JSON objects. */ - -#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<StringType>; -#endif using object_t = ObjectType<StringType, basic_json, object_comparator_t, @@ -7931,12 +8014,14 @@ class basic_json static T* create(Args&& ... args) { AllocatorType<T> alloc; + using AllocatorTraits = std::allocator_traits<AllocatorType<T>>; + auto deleter = [&](T * object) { - alloc.deallocate(object, 1); + AllocatorTraits::deallocate(alloc, object, 1); }; - std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter); - alloc.construct(object.get(), std::forward<Args>(args)...); + std::unique_ptr<T, decltype(deleter)> object(AllocatorTraits::allocate(alloc, 1), deleter); + AllocatorTraits::construct(alloc, object.get(), std::forward<Args>(args)...); assert(object != nullptr); return object.release(); } @@ -8054,7 +8139,7 @@ class basic_json object = nullptr; // silence warning, see #821 if (JSON_UNLIKELY(t == value_t::null)) { - JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 2.1.1")); // LCOV_EXCL_LINE + JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 3.0.1")); // LCOV_EXCL_LINE } break; } @@ -8104,24 +8189,24 @@ class basic_json case value_t::object: { AllocatorType<object_t> alloc; - alloc.destroy(object); - alloc.deallocate(object, 1); + std::allocator_traits<decltype(alloc)>::destroy(alloc, object); + std::allocator_traits<decltype(alloc)>::deallocate(alloc, object, 1); break; } case value_t::array: { AllocatorType<array_t> alloc; - alloc.destroy(array); - alloc.deallocate(array, 1); + std::allocator_traits<decltype(alloc)>::destroy(alloc, array); + std::allocator_traits<decltype(alloc)>::deallocate(alloc, array, 1); break; } case value_t::string: { AllocatorType<string_t> alloc; - alloc.destroy(string); - alloc.deallocate(string, 1); + std::allocator_traits<decltype(alloc)>::destroy(alloc, string); + std::allocator_traits<decltype(alloc)>::deallocate(alloc, string, 1); break; } @@ -8154,6 +8239,21 @@ class basic_json // JSON parser callback // ////////////////////////// + /*! + @brief parser event types + + The parser callback distinguishes the following events: + - `object_start`: the parser read `{` and started to process a JSON object + - `key`: the parser read a key of a value in an object + - `object_end`: the parser read `}` and finished processing a JSON object + - `array_start`: the parser read `[` and started to process a JSON array + - `array_end`: the parser read `]` and finished processing a JSON array + - `value`: the parser finished reading a JSON value + + @image html callback_events.png "Example when certain parse events are triggered" + + @sa @ref parser_callback_t for more information and examples + */ using parse_event_t = typename parser::parse_event_t; /*! @@ -8280,7 +8380,7 @@ class basic_json @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 + types for which a `to_json()` method exists. The constructor forwards the parameter @a val to that method (to `json_serializer<U>::to_json` method with `U = uncvref_t<CompatibleType>`, to be exact). @@ -8952,11 +9052,14 @@ class basic_json @param[in] indent_char The character to use for indentation if @a indent is greater than `0`. The default is ` ` (space). @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 + in the output are escaped with `\uXXXX` sequences, and the result consists of ASCII characters only. @return string containing the serialization of the JSON value + @throw type_error.316 if a string stored inside the JSON value is not + UTF-8 encoded + @complexity Linear. @exceptionsafety Strong guarantee: if an exception is thrown, there are no @@ -8968,8 +9071,8 @@ class basic_json @see https://docs.python.org/2/library/json.html#json.dump - @since version 1.0.0; indentation character @a indent_char and option - @a ensure_ascii added in version 3.0.0 + @since version 1.0.0; indentation character @a indent_char, option + @a ensure_ascii and exceptions added in version 3.0.0 */ string_t dump(const int indent = -1, const char indent_char = ' ', const bool ensure_ascii = false) const @@ -9003,7 +9106,7 @@ class basic_json string | value_t::string number (integer) | value_t::number_integer number (unsigned integer) | value_t::number_unsigned - number (foating-point) | value_t::number_float + number (floating-point) | value_t::number_float object | value_t::object array | value_t::array discarded | value_t::discarded @@ -9507,11 +9610,9 @@ class basic_json @since version 2.1.0 */ - template < - typename BasicJsonType, - detail::enable_if_t<std::is_same<typename std::remove_const<BasicJsonType>::type, - basic_json_t>::value, - int> = 0 > + template<typename BasicJsonType, detail::enable_if_t< + std::is_same<typename std::remove_const<BasicJsonType>::type, basic_json_t>::value, + int> = 0> basic_json get() const { return *this; @@ -9556,14 +9657,12 @@ class basic_json @since version 2.1.0 */ - template < - typename ValueTypeCV, - typename ValueType = detail::uncvref_t<ValueTypeCV>, - detail::enable_if_t < - not std::is_same<basic_json_t, ValueType>::value and - detail::has_from_json<basic_json_t, ValueType>::value and - not detail::has_non_default_from_json<basic_json_t, ValueType>::value, - int > = 0 > + template<typename ValueTypeCV, typename ValueType = detail::uncvref_t<ValueTypeCV>, + detail::enable_if_t < + not std::is_same<basic_json_t, ValueType>::value and + detail::has_from_json<basic_json_t, ValueType>::value and + not detail::has_non_default_from_json<basic_json_t, ValueType>::value, + int> = 0> ValueType get() const noexcept(noexcept( JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), std::declval<ValueType&>()))) { @@ -9611,12 +9710,10 @@ class basic_json @since version 2.1.0 */ - template < - typename ValueTypeCV, - typename ValueType = detail::uncvref_t<ValueTypeCV>, - detail::enable_if_t<not std::is_same<basic_json_t, ValueType>::value and - detail::has_non_default_from_json<basic_json_t, - ValueType>::value, int> = 0 > + template<typename ValueTypeCV, typename ValueType = detail::uncvref_t<ValueTypeCV>, + detail::enable_if_t<not std::is_same<basic_json_t, ValueType>::value and + detail::has_non_default_from_json<basic_json_t, ValueType>::value, + int> = 0> ValueType get() const noexcept(noexcept( JSONSerializer<ValueTypeCV>::from_json(std::declval<const basic_json_t&>()))) { @@ -10110,7 +10207,7 @@ class basic_json @return const reference to the element at index @a idx - @throw type_error.305 if the JSON value is not an array; in that cases, + @throw type_error.305 if the JSON value is not an array; in that case, using the [] operator with an index makes no sense. @complexity Constant. @@ -10193,7 +10290,7 @@ class basic_json @pre The element with key @a key must exist. **This precondition is enforced with an assertion.** - @throw type_error.305 if the JSON value is not an object; in that cases, + @throw type_error.305 if the JSON value is not an object; in that case, using the [] operator with a key makes no sense. @complexity Logarithmic in the size of the container. @@ -10282,7 +10379,7 @@ class basic_json @pre The element with key @a key must exist. **This precondition is enforced with an assertion.** - @throw type_error.305 if the JSON value is not an object; in that cases, + @throw type_error.305 if the JSON value is not an object; in that case, using the [] operator with a key makes no sense. @complexity Logarithmic in the size of the container. @@ -10342,7 +10439,7 @@ class basic_json @return copy of the element at key @a key or @a default_value if @a key is not found - @throw type_error.306 if the JSON value is not an objec; in that cases, + @throw type_error.306 if the JSON value is not an object; in that case, using `value()` with a key makes no sense. @complexity Logarithmic in the size of the container. @@ -10415,7 +10512,7 @@ class basic_json @return copy of the element at key @a key or @a default_value if @a key is not found - @throw type_error.306 if the JSON value is not an objec; in that cases, + @throw type_error.306 if the JSON value is not an objec; in that case, using `value()` with a key makes no sense. @complexity Logarithmic in the size of the container. @@ -10619,8 +10716,8 @@ class basic_json if (is_string()) { AllocatorType<string_t> alloc; - alloc.destroy(m_value.string); - alloc.deallocate(m_value.string, 1); + std::allocator_traits<decltype(alloc)>::destroy(alloc, m_value.string); + std::allocator_traits<decltype(alloc)>::deallocate(alloc, m_value.string, 1); m_value.string = nullptr; } @@ -10725,8 +10822,8 @@ class basic_json if (is_string()) { AllocatorType<string_t> alloc; - alloc.destroy(m_value.string); - alloc.deallocate(m_value.string, 1); + std::allocator_traits<decltype(alloc)>::destroy(alloc, m_value.string); + std::allocator_traits<decltype(alloc)>::deallocate(alloc, m_value.string, 1); m_value.string = nullptr; } @@ -11220,22 +11317,62 @@ class basic_json reference to the JSON values is returned, so there is no access to the underlying iterator. + For loop without iterator_wrapper: + + @code{cpp} + for (auto it = j_object.begin(); it != j_object.end(); ++it) + { + std::cout << "key: " << it.key() << ", value:" << it.value() << '\n'; + } + @endcode + + Range-based for loop without iterator proxy: + + @code{cpp} + for (auto it : j_object) + { + // "it" is of type json::reference and has no key() member + std::cout << "value: " << it << '\n'; + } + @endcode + + Range-based for loop with iterator proxy: + + @code{cpp} + for (auto it : json::iterator_wrapper(j_object)) + { + std::cout << "key: " << it.key() << ", value:" << it.value() << '\n'; + } + @endcode + + @note When iterating over an array, `key()` will return the index of the + element as string (see example). + + @param[in] ref reference to a JSON value + @return iteration proxy object wrapping @a ref with an interface to use in + range-based for loops + @liveexample{The following code shows how the wrapper is used,iterator_wrapper} + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Constant. + @note The name of this function is not yet final and may change in the future. */ - static iteration_proxy<iterator> iterator_wrapper(reference cont) + static iteration_proxy<iterator> iterator_wrapper(reference ref) { - return iteration_proxy<iterator>(cont); + return iteration_proxy<iterator>(ref); } /*! @copydoc iterator_wrapper(reference) */ - static iteration_proxy<const_iterator> iterator_wrapper(const_reference cont) + static iteration_proxy<const_iterator> iterator_wrapper(const_reference ref) { - return iteration_proxy<const_iterator>(cont); + return iteration_proxy<const_iterator>(ref); } /// @} @@ -12120,7 +12257,7 @@ class basic_json JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(j.type_name()))); } - for (auto it = j.begin(); it != j.end(); ++it) + for (auto it = j.cbegin(); it != j.cend(); ++it) { m_value.object->operator[](it.key()) = it.value(); } @@ -12341,7 +12478,7 @@ class basic_json [comparison function](https://github.com/mariokonrad/marnav/blob/master/src/marnav/math/floatingpoint.hpp#L34-#L39) could be used, for instance @code {.cpp} - template <typename T, typename = typename std::enable_if<std::is_floating_point<T>::value, T>::type> + template<typename T, typename = typename std::enable_if<std::is_floating_point<T>::value, T>::type> inline bool is_same(T a, T b, T epsilon = std::numeric_limits<T>::epsilon()) noexcept { return std::abs(a - b) <= epsilon; @@ -12769,7 +12906,7 @@ class basic_json `std::setw(4)` on @a o sets the indentation level to `4` and the serialization result is the same as calling `dump(4)`. - - The indentation characrer can be controlled with the member variable + - The indentation character can be controlled with the member variable `fill` of the output stream @a o. For instance, the manipulator `std::setfill('\\t')` sets indentation to use a tab character rather than the default space character. @@ -12779,12 +12916,15 @@ class basic_json @return the stream @a o + @throw type_error.316 if a string stored inside the JSON value is not + UTF-8 encoded + @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; indentaction character added in version 3.0.0 + @since version 1.0.0; indentation character added in version 3.0.0 */ friend std::ostream& operator<<(std::ostream& o, const basic_json& j) { @@ -13124,40 +13264,40 @@ class basic_json JSON value type | value/range | CBOR type | first byte --------------- | ------------------------------------------ | ---------------------------------- | --------------- - null | `null` | Null | 0xf6 - boolean | `true` | True | 0xf5 - boolean | `false` | False | 0xf4 - number_integer | -9223372036854775808..-2147483649 | Negative integer (8 bytes follow) | 0x3b - number_integer | -2147483648..-32769 | Negative integer (4 bytes follow) | 0x3a + null | `null` | Null | 0xF6 + boolean | `true` | True | 0xF5 + boolean | `false` | False | 0xF4 + number_integer | -9223372036854775808..-2147483649 | Negative integer (8 bytes follow) | 0x3B + number_integer | -2147483648..-32769 | Negative integer (4 bytes follow) | 0x3A number_integer | -32768..-129 | Negative integer (2 bytes follow) | 0x39 number_integer | -128..-25 | Negative integer (1 byte follow) | 0x38 number_integer | -24..-1 | Negative integer | 0x20..0x37 number_integer | 0..23 | Integer | 0x00..0x17 number_integer | 24..255 | Unsigned integer (1 byte follow) | 0x18 number_integer | 256..65535 | Unsigned integer (2 bytes follow) | 0x19 - number_integer | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1a - number_integer | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1b + number_integer | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A + number_integer | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B number_unsigned | 0..23 | Integer | 0x00..0x17 number_unsigned | 24..255 | Unsigned integer (1 byte follow) | 0x18 number_unsigned | 256..65535 | Unsigned integer (2 bytes follow) | 0x19 - number_unsigned | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1a - number_unsigned | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1b - number_float | *any value* | Double-Precision Float | 0xfb + number_unsigned | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A + number_unsigned | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B + number_float | *any value* | Double-Precision Float | 0xFB string | *length*: 0..23 | UTF-8 string | 0x60..0x77 string | *length*: 23..255 | UTF-8 string (1 byte follow) | 0x78 string | *length*: 256..65535 | UTF-8 string (2 bytes follow) | 0x79 - string | *length*: 65536..4294967295 | UTF-8 string (4 bytes follow) | 0x7a - string | *length*: 4294967296..18446744073709551615 | UTF-8 string (8 bytes follow) | 0x7b + string | *length*: 65536..4294967295 | UTF-8 string (4 bytes follow) | 0x7A + string | *length*: 4294967296..18446744073709551615 | UTF-8 string (8 bytes follow) | 0x7B array | *size*: 0..23 | array | 0x80..0x97 array | *size*: 23..255 | array (1 byte follow) | 0x98 array | *size*: 256..65535 | array (2 bytes follow) | 0x99 - array | *size*: 65536..4294967295 | array (4 bytes follow) | 0x9a - array | *size*: 4294967296..18446744073709551615 | array (8 bytes follow) | 0x9b - object | *size*: 0..23 | map | 0xa0..0xb7 - object | *size*: 23..255 | map (1 byte follow) | 0xb8 - object | *size*: 256..65535 | map (2 bytes follow) | 0xb9 - object | *size*: 65536..4294967295 | map (4 bytes follow) | 0xba - object | *size*: 4294967296..18446744073709551615 | map (8 bytes follow) | 0xbb + array | *size*: 65536..4294967295 | array (4 bytes follow) | 0x9A + array | *size*: 4294967296..18446744073709551615 | array (8 bytes follow) | 0x9B + object | *size*: 0..23 | map | 0xA0..0xB7 + object | *size*: 23..255 | map (1 byte follow) | 0xB8 + object | *size*: 256..65535 | map (2 bytes follow) | 0xB9 + object | *size*: 65536..4294967295 | map (4 bytes follow) | 0xBA + object | *size*: 4294967296..18446744073709551615 | map (8 bytes follow) | 0xBB @note The mapping is **complete** in the sense that any JSON value type can be converted to a CBOR value. @@ -13167,20 +13307,20 @@ class basic_json function which serializes NaN or Infinity to `null`. @note The following CBOR types are not used in the conversion: - - byte strings (0x40..0x5f) - - UTF-8 strings terminated by "break" (0x7f) - - arrays terminated by "break" (0x9f) - - maps terminated by "break" (0xbf) - - date/time (0xc0..0xc1) - - bignum (0xc2..0xc3) - - decimal fraction (0xc4) - - bigfloat (0xc5) - - tagged items (0xc6..0xd4, 0xd8..0xdb) - - expected conversions (0xd5..0xd7) - - simple values (0xe0..0xf3, 0xf8) - - undefined (0xf7) - - half and single-precision floats (0xf9-0xfa) - - break (0xff) + - byte strings (0x40..0x5F) + - UTF-8 strings terminated by "break" (0x7F) + - arrays terminated by "break" (0x9F) + - maps terminated by "break" (0xBF) + - date/time (0xC0..0xC1) + - bignum (0xC2..0xC3) + - decimal fraction (0xC4) + - bigfloat (0xC5) + - tagged items (0xC6..0xD4, 0xD8..0xDB) + - expected conversions (0xD5..0xD7) + - simple values (0xE0..0xF3, 0xF8) + - undefined (0xF7) + - half and single-precision floats (0xF9-0xFA) + - break (0xFF) @param[in] j JSON value to serialize @return MessagePack serialization as byte vector @@ -13226,35 +13366,35 @@ class basic_json JSON value type | value/range | MessagePack type | first byte --------------- | --------------------------------- | ---------------- | ---------- - null | `null` | nil | 0xc0 - boolean | `true` | true | 0xc3 - boolean | `false` | false | 0xc2 - number_integer | -9223372036854775808..-2147483649 | int64 | 0xd3 - number_integer | -2147483648..-32769 | int32 | 0xd2 - number_integer | -32768..-129 | int16 | 0xd1 - number_integer | -128..-33 | int8 | 0xd0 - number_integer | -32..-1 | negative fixint | 0xe0..0xff - number_integer | 0..127 | positive fixint | 0x00..0x7f - number_integer | 128..255 | uint 8 | 0xcc - number_integer | 256..65535 | uint 16 | 0xcd - number_integer | 65536..4294967295 | uint 32 | 0xce - number_integer | 4294967296..18446744073709551615 | uint 64 | 0xcf - number_unsigned | 0..127 | positive fixint | 0x00..0x7f - number_unsigned | 128..255 | uint 8 | 0xcc - number_unsigned | 256..65535 | uint 16 | 0xcd - number_unsigned | 65536..4294967295 | uint 32 | 0xce - number_unsigned | 4294967296..18446744073709551615 | uint 64 | 0xcf - number_float | *any value* | float 64 | 0xcb - string | *length*: 0..31 | fixstr | 0xa0..0xbf - string | *length*: 32..255 | str 8 | 0xd9 - string | *length*: 256..65535 | str 16 | 0xda - string | *length*: 65536..4294967295 | str 32 | 0xdb - array | *size*: 0..15 | fixarray | 0x90..0x9f - array | *size*: 16..65535 | array 16 | 0xdc - array | *size*: 65536..4294967295 | array 32 | 0xdd - object | *size*: 0..15 | fix map | 0x80..0x8f - object | *size*: 16..65535 | map 16 | 0xde - object | *size*: 65536..4294967295 | map 32 | 0xdf + null | `null` | nil | 0xC0 + boolean | `true` | true | 0xC3 + boolean | `false` | false | 0xC2 + number_integer | -9223372036854775808..-2147483649 | int64 | 0xD3 + number_integer | -2147483648..-32769 | int32 | 0xD2 + number_integer | -32768..-129 | int16 | 0xD1 + number_integer | -128..-33 | int8 | 0xD0 + number_integer | -32..-1 | negative fixint | 0xE0..0xFF + number_integer | 0..127 | positive fixint | 0x00..0x7F + number_integer | 128..255 | uint 8 | 0xCC + number_integer | 256..65535 | uint 16 | 0xCD + number_integer | 65536..4294967295 | uint 32 | 0xCE + number_integer | 4294967296..18446744073709551615 | uint 64 | 0xCF + number_unsigned | 0..127 | positive fixint | 0x00..0x7F + number_unsigned | 128..255 | uint 8 | 0xCC + number_unsigned | 256..65535 | uint 16 | 0xCD + number_unsigned | 65536..4294967295 | uint 32 | 0xCE + number_unsigned | 4294967296..18446744073709551615 | uint 64 | 0xCF + number_float | *any value* | float 64 | 0xCB + string | *length*: 0..31 | fixstr | 0xA0..0xBF + string | *length*: 32..255 | str 8 | 0xD9 + string | *length*: 256..65535 | str 16 | 0xDA + string | *length*: 65536..4294967295 | str 32 | 0xDB + array | *size*: 0..15 | fixarray | 0x90..0x9F + array | *size*: 16..65535 | array 16 | 0xDC + array | *size*: 65536..4294967295 | array 32 | 0xDD + object | *size*: 0..15 | fix map | 0x80..0x8F + object | *size*: 16..65535 | map 16 | 0xDE + object | *size*: 65536..4294967295 | map 32 | 0xDF @note The mapping is **complete** in the sense that any JSON value type can be converted to a MessagePack value. @@ -13265,10 +13405,10 @@ class basic_json - objects with more than 4294967295 elements @note The following MessagePack types are not used in the conversion: - - bin 8 - bin 32 (0xc4..0xc6) - - ext 8 - ext 32 (0xc7..0xc9) - - float 32 (0xca) - - fixext 1 - fixext 16 (0xd4..0xd8) + - bin 8 - bin 32 (0xC4..0xC6) + - ext 8 - ext 32 (0xC7..0xC9) + - float 32 (0xCA) + - fixext 1 - fixext 16 (0xD4..0xD8) @note Any MessagePack output created @ref to_msgpack can be successfully parsed by @ref from_msgpack. @@ -13322,51 +13462,51 @@ class basic_json Integer | number_unsigned | 0x00..0x17 Unsigned integer | number_unsigned | 0x18 Unsigned integer | number_unsigned | 0x19 - Unsigned integer | number_unsigned | 0x1a - Unsigned integer | number_unsigned | 0x1b + Unsigned integer | number_unsigned | 0x1A + Unsigned integer | number_unsigned | 0x1B Negative integer | number_integer | 0x20..0x37 Negative integer | number_integer | 0x38 Negative integer | number_integer | 0x39 - Negative integer | number_integer | 0x3a - Negative integer | number_integer | 0x3b + Negative integer | number_integer | 0x3A + Negative integer | number_integer | 0x3B Negative integer | number_integer | 0x40..0x57 UTF-8 string | string | 0x60..0x77 UTF-8 string | string | 0x78 UTF-8 string | string | 0x79 - UTF-8 string | string | 0x7a - UTF-8 string | string | 0x7b - UTF-8 string | string | 0x7f + UTF-8 string | string | 0x7A + UTF-8 string | string | 0x7B + UTF-8 string | string | 0x7F array | array | 0x80..0x97 array | array | 0x98 array | array | 0x99 - array | array | 0x9a - array | array | 0x9b - array | array | 0x9f - map | object | 0xa0..0xb7 - map | object | 0xb8 - map | object | 0xb9 - map | object | 0xba - map | object | 0xbb - map | object | 0xbf - False | `false` | 0xf4 - True | `true` | 0xf5 - Nill | `null` | 0xf6 - Half-Precision Float | number_float | 0xf9 - Single-Precision Float | number_float | 0xfa - Double-Precision Float | number_float | 0xfb + array | array | 0x9A + array | array | 0x9B + array | array | 0x9F + map | object | 0xA0..0xB7 + map | object | 0xB8 + map | object | 0xB9 + map | object | 0xBA + map | object | 0xBB + map | object | 0xBF + False | `false` | 0xF4 + True | `true` | 0xF5 + Nill | `null` | 0xF6 + Half-Precision Float | number_float | 0xF9 + Single-Precision Float | number_float | 0xFA + Double-Precision Float | number_float | 0xFB @warning The mapping is **incomplete** in the sense that not all CBOR types can be converted to a JSON value. The following CBOR types are not supported and will yield parse errors (parse_error.112): - - byte strings (0x40..0x5f) - - date/time (0xc0..0xc1) - - bignum (0xc2..0xc3) - - decimal fraction (0xc4) - - bigfloat (0xc5) - - tagged items (0xc6..0xd4, 0xd8..0xdb) - - expected conversions (0xd5..0xd7) - - simple values (0xe0..0xf3, 0xf8) - - undefined (0xf7) + - byte strings (0x40..0x5F) + - date/time (0xC0..0xC1) + - bignum (0xC2..0xC3) + - decimal fraction (0xC4) + - bigfloat (0xC5) + - tagged items (0xC6..0xD4, 0xD8..0xDB) + - expected conversions (0xD5..0xD7) + - simple values (0xE0..0xF3, 0xF8) + - undefined (0xF7) @warning CBOR allows map keys of any type, whereas JSON only allows strings as keys in object values. Therefore, CBOR maps with keys @@ -13426,38 +13566,38 @@ class basic_json MessagePack type | JSON value type | first byte ---------------- | --------------- | ---------- - positive fixint | number_unsigned | 0x00..0x7f - fixmap | object | 0x80..0x8f - fixarray | array | 0x90..0x9f - fixstr | string | 0xa0..0xbf - nil | `null` | 0xc0 - false | `false` | 0xc2 - true | `true` | 0xc3 - float 32 | number_float | 0xca - float 64 | number_float | 0xcb - uint 8 | number_unsigned | 0xcc - uint 16 | number_unsigned | 0xcd - uint 32 | number_unsigned | 0xce - uint 64 | number_unsigned | 0xcf - int 8 | number_integer | 0xd0 - int 16 | number_integer | 0xd1 - int 32 | number_integer | 0xd2 - int 64 | number_integer | 0xd3 - str 8 | string | 0xd9 - str 16 | string | 0xda - str 32 | string | 0xdb - array 16 | array | 0xdc - array 32 | array | 0xdd - map 16 | object | 0xde - map 32 | object | 0xdf - negative fixint | number_integer | 0xe0-0xff + positive fixint | number_unsigned | 0x00..0x7F + fixmap | object | 0x80..0x8F + fixarray | array | 0x90..0x9F + fixstr | string | 0xA0..0xBF + nil | `null` | 0xC0 + false | `false` | 0xC2 + true | `true` | 0xC3 + float 32 | number_float | 0xCA + float 64 | number_float | 0xCB + uint 8 | number_unsigned | 0xCC + uint 16 | number_unsigned | 0xCD + uint 32 | number_unsigned | 0xCE + uint 64 | number_unsigned | 0xCF + int 8 | number_integer | 0xD0 + int 16 | number_integer | 0xD1 + int 32 | number_integer | 0xD2 + int 64 | number_integer | 0xD3 + str 8 | string | 0xD9 + str 16 | string | 0xDA + str 32 | string | 0xDB + array 16 | array | 0xDC + array 32 | array | 0xDD + map 16 | object | 0xDE + map 32 | object | 0xDF + negative fixint | number_integer | 0xE0-0xFF @warning The mapping is **incomplete** in the sense that not all MessagePack types can be converted to a JSON value. The following MessagePack types are not supported and will yield parse errors: - - bin 8 - bin 32 (0xc4..0xc6) - - ext 8 - ext 32 (0xc7..0xc9) - - fixext 1 - fixext 16 (0xd4..0xd8) + - bin 8 - bin 32 (0xC4..0xC6) + - ext 8 - ext 32 (0xC7..0xC9) + - fixext 1 - fixext 16 (0xD4..0xD8) @note Any MessagePack output created @ref to_msgpack can be successfully parsed by @ref from_msgpack. @@ -13601,6 +13741,9 @@ class basic_json pointer @a ptr. As `at` provides checked access (and no elements are implicitly inserted), the index '-' is always invalid. See example below. + @throw out_of_range.403 if the JSON pointer describes a key of an object + which cannot be found. See example below. + @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved. See example below. @@ -13641,6 +13784,9 @@ class basic_json pointer @a ptr. As `at` provides checked access (and no elements are implicitly inserted), the index '-' is always invalid. See example below. + @throw out_of_range.403 if the JSON pointer describes a key of an object + which cannot be found. See example below. + @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved. See example below. @@ -13856,7 +14002,7 @@ class basic_json } else { - const auto idx = std::stoi(last_path); + const auto idx = json_pointer::array_index(last_path); if (JSON_UNLIKELY(static_cast<size_type>(idx) > parent.size())) { // avoid undefined behavior @@ -13904,7 +14050,7 @@ class basic_json else if (parent.is_array()) { // note erase performs range check - parent.erase(static_cast<size_type>(std::stoi(last_path))); + parent.erase(static_cast<size_type>(json_pointer::array_index(last_path))); } }; @@ -13999,7 +14145,12 @@ class basic_json 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; } @@ -14141,7 +14292,7 @@ class basic_json case value_t::object: { // first pass: traverse this object's elements - for (auto it = source.begin(); it != source.end(); ++it) + for (auto it = source.cbegin(); it != source.cend(); ++it) { // escape the key name to be used in a JSON patch const auto key = json_pointer::escape(it.key()); @@ -14163,7 +14314,7 @@ class basic_json } // second pass: traverse other object's elements - for (auto it = target.begin(); it != target.end(); ++it) + for (auto it = target.cbegin(); it != target.cend(); ++it) { if (source.find(it.key()) == source.end()) { @@ -14256,7 +14407,7 @@ json_pointer::get_and_create(NLOHMANN_BASIC_JSON_TPL& j) const // create an entry in the array JSON_TRY { - result = &result->operator[](static_cast<size_type>(std::stoi(reference_token))); + result = &result->operator[](static_cast<size_type>(array_index(reference_token))); } JSON_CATCH(std::invalid_argument&) { @@ -14333,7 +14484,7 @@ json_pointer::get_unchecked(NLOHMANN_BASIC_JSON_TPL* ptr) const JSON_TRY { ptr = &ptr->operator[]( - static_cast<size_type>(std::stoi(reference_token))); + static_cast<size_type>(array_index(reference_token))); } JSON_CATCH(std::invalid_argument&) { @@ -14388,7 +14539,7 @@ json_pointer::get_checked(NLOHMANN_BASIC_JSON_TPL* ptr) const // note: at performs range check JSON_TRY { - ptr = &ptr->at(static_cast<size_type>(std::stoi(reference_token))); + ptr = &ptr->at(static_cast<size_type>(array_index(reference_token))); } JSON_CATCH(std::invalid_argument&) { @@ -14443,7 +14594,7 @@ json_pointer::get_unchecked(const NLOHMANN_BASIC_JSON_TPL* ptr) const JSON_TRY { ptr = &ptr->operator[]( - static_cast<size_type>(std::stoi(reference_token))); + static_cast<size_type>(array_index(reference_token))); } JSON_CATCH(std::invalid_argument&) { @@ -14497,7 +14648,7 @@ json_pointer::get_checked(const NLOHMANN_BASIC_JSON_TPL* ptr) const // note: at performs range check JSON_TRY { - ptr = &ptr->at(static_cast<size_type>(std::stoi(reference_token))); + ptr = &ptr->at(static_cast<size_type>(array_index(reference_token))); } JSON_CATCH(std::invalid_argument&) { |