nlohmann::detail::binary_writer< BasicJsonType, CharType > Class Template Reference

serialization to CBOR and MessagePack values More...

Public Member Functions
	binary_writer (output_adapter_t< CharType > adapter)
	create a binary writer
void	write_bson (const BasicJsonType &j)
void	write_cbor (const BasicJsonType &j)
void	write_msgpack (const BasicJsonType &j)
void	write_ubjson (const BasicJsonType &j, const bool use_count, const bool use_type, const bool add_prefix=true)

Static Public Member Functions
template<typename InputCharType , typename C = CharType, enable_if_t< std::is_signed< C >::value &&std::is_signed< char >::value &&std::is_same< char, typename std::remove_cv< InputCharType >::type >::value > * = nullptr>
static constexpr CharType	to_char_type (InputCharType x) noexcept
template<typename C = CharType, enable_if_t< std::is_signed< C >::value &&std::is_signed< char >::value > * = nullptr>
static constexpr CharType	to_char_type (std::uint8_t x) noexcept
template<typename C = CharType, enable_if_t< std::is_signed< C >::value &&std::is_unsigned< char >::value > * = nullptr>
static CharType	to_char_type (std::uint8_t x) noexcept
template<typename C = CharType, enable_if_t< std::is_unsigned< C >::value > * = nullptr>
static constexpr CharType	to_char_type (std::uint8_t x) noexcept

Private Types
using	binary_t = typename BasicJsonType::binary_t
using	number_float_t = typename BasicJsonType::number_float_t
using	string_t = typename BasicJsonType::string_t

Private Member Functions
CharType	ubjson_prefix (const BasicJsonType &j) const noexcept
	determine the type prefix of container values
void	write_bson_array (const string_t &name, const typename BasicJsonType::array_t &value)
	Writes a BSON element with key name and array value.
void	write_bson_binary (const string_t &name, const binary_t &value)
	Writes a BSON element with key name and binary value value.
void	write_bson_boolean (const string_t &name, const bool value)
	Writes a BSON element with key name and boolean value value.
void	write_bson_double (const string_t &name, const double value)
	Writes a BSON element with key name and double value value.
void	write_bson_element (const string_t &name, const BasicJsonType &j)
	Serializes the JSON value j to BSON and associates it with the key name.
void	write_bson_entry_header (const string_t &name, const std::uint8_t element_type)
	Writes the given element_type and name to the output adapter.
void	write_bson_integer (const string_t &name, const std::int64_t value)
	Writes a BSON element with key name and integer value.
void	write_bson_null (const string_t &name)
	Writes a BSON element with key name and null value.
void	write_bson_object (const typename BasicJsonType::object_t &value)
void	write_bson_object_entry (const string_t &name, const typename BasicJsonType::object_t &value)
	Writes a BSON element with key name and object value.
void	write_bson_string (const string_t &name, const string_t &value)
	Writes a BSON element with key name and string value value.
void	write_bson_unsigned (const string_t &name, const BasicJsonType &j)
	Writes a BSON element with key name and unsigned value.
void	write_compact_float (const number_float_t n, detail::input_format_t format)
template<typename NumberType , bool OutputIsLittleEndian = false>
void	write_number (const NumberType n)
template<typename NumberType , typename std::enable_if< std::is_floating_point< NumberType >::value, int >::type = 0>
void	write_number_with_ubjson_prefix (const NumberType n, const bool add_prefix)
template<typename NumberType , typename std::enable_if< std::is_unsigned< NumberType >::value, int >::type = 0>
void	write_number_with_ubjson_prefix (const NumberType n, const bool add_prefix)
template<typename NumberType , typename std::enable_if< std::is_signed< NumberType >::value &&!std::is_floating_point< NumberType >::value, int >::type = 0>
void	write_number_with_ubjson_prefix (const NumberType n, const bool add_prefix)

Static Private Member Functions
static std::size_t	calc_bson_array_size (const typename BasicJsonType::array_t &value)
static std::size_t	calc_bson_binary_size (const typename BasicJsonType::binary_t &value)
static std::size_t	calc_bson_element_size (const string_t &name, const BasicJsonType &j)
	Calculates the size necessary to serialize the JSON value j with its name.
static std::size_t	calc_bson_entry_header_size (const string_t &name, const BasicJsonType &j)
static std::size_t	calc_bson_integer_size (const std::int64_t value)
static std::size_t	calc_bson_object_size (const typename BasicJsonType::object_t &value)
	Calculates the size of the BSON serialization of the given JSON-object j.
static std::size_t	calc_bson_string_size (const string_t &value)
static constexpr std::size_t	calc_bson_unsigned_size (const std::uint64_t value) noexcept
static constexpr CharType	get_cbor_float_prefix (double)
static constexpr CharType	get_cbor_float_prefix (float)
static constexpr CharType	get_msgpack_float_prefix (double)
static constexpr CharType	get_msgpack_float_prefix (float)
static constexpr CharType	get_ubjson_float_prefix (double)
static constexpr CharType	get_ubjson_float_prefix (float)

Private Attributes
const bool	is_little_endian = little_endianness()
	whether we can assume little endianness
output_adapter_t< CharType >	oa = nullptr
	the output

Detailed Description

template<typename BasicJsonType, typename CharType>
class nlohmann::detail::binary_writer< BasicJsonType, CharType >

serialization to CBOR and MessagePack values

Definition at line 13314 of file json.hpp.

Member Typedef Documentation

binary_t

template<typename BasicJsonType , typename CharType >

using nlohmann::detail::binary_writer< BasicJsonType, CharType >::binary_t = typename BasicJsonType::binary_t

private

Definition at line 13317 of file json.hpp.

number_float_t

template<typename BasicJsonType , typename CharType >

using nlohmann::detail::binary_writer< BasicJsonType, CharType >::number_float_t = typename BasicJsonType::number_float_t

private

Definition at line 13318 of file json.hpp.

string_t

template<typename BasicJsonType , typename CharType >

using nlohmann::detail::binary_writer< BasicJsonType, CharType >::string_t = typename BasicJsonType::string_t

private

Definition at line 13316 of file json.hpp.

Constructor & Destructor Documentation

binary_writer()

template<typename BasicJsonType , typename CharType >

nlohmann::detail::binary_writer< BasicJsonType, CharType >::binary_writer ( output_adapter_t< CharType >  adapter )

inlineexplicit

create a binary writer

Parameters

[in]

adapter

output adapter to write to

Definition at line 13326 of file json.hpp.

References JSON_ASSERT.

Member Function Documentation

calc_bson_array_size()

template<typename BasicJsonType , typename CharType >

static std::size_t nlohmann::detail::binary_writer< BasicJsonType, CharType >::calc_bson_array_size ( const typename BasicJsonType::array_t &  value )

inlinestaticprivate

Returns

The size of the BSON-encoded array value

Definition at line 14368 of file json.hpp.

References nlohmann::detail::value.

calc_bson_binary_size()

template<typename BasicJsonType , typename CharType >

static std::size_t nlohmann::detail::binary_writer< BasicJsonType, CharType >::calc_bson_binary_size ( const typename BasicJsonType::binary_t &  value )

inlinestaticprivate

Returns

The size of the BSON-encoded binary array value

Definition at line 14383 of file json.hpp.

References nlohmann::detail::value.

calc_bson_element_size()

template<typename BasicJsonType , typename CharType >

static std::size_t nlohmann::detail::binary_writer< BasicJsonType, CharType >::calc_bson_element_size ( const string_t &  name, const BasicJsonType &  j  )

inlinestaticprivate

Calculates the size necessary to serialize the JSON value j with its name.

Returns

The calculated size for the BSON document entry for j with the given name.

Definition at line 14425 of file json.hpp.

References JSON_ASSERT.

calc_bson_entry_header_size()

template<typename BasicJsonType , typename CharType >

static std::size_t nlohmann::detail::binary_writer< BasicJsonType, CharType >::calc_bson_entry_header_size ( const string_t &  name, const BasicJsonType &  j  )

inlinestaticprivate

Returns

The size of a BSON document entry header, including the id marker and the entry name size (and its null-terminator).

Definition at line 14221 of file json.hpp.

References JSON_HEDLEY_UNLIKELY, and JSON_THROW.

calc_bson_integer_size()

template<typename BasicJsonType , typename CharType >

static std::size_t nlohmann::detail::binary_writer< BasicJsonType, CharType >::calc_bson_integer_size ( const std::int64_t  value )

inlinestaticprivate

Returns

The size of the BSON-encoded integer value

Definition at line 14298 of file json.hpp.

References nlohmann::detail::value.

calc_bson_object_size()

template<typename BasicJsonType , typename CharType >

static std::size_t nlohmann::detail::binary_writer< BasicJsonType, CharType >::calc_bson_object_size ( const typename BasicJsonType::object_t &  value )

inlinestaticprivate

Calculates the size of the BSON serialization of the given JSON-object j.

Parameters

[in]

value

JSON value to serialize

Precondition

value.type() == value_t::object

Definition at line 14520 of file json.hpp.

References nlohmann::detail::value.

calc_bson_string_size()

template<typename BasicJsonType , typename CharType >

static std::size_t nlohmann::detail::binary_writer< BasicJsonType, CharType >::calc_bson_string_size ( const string_t &  value )

inlinestaticprivate

Returns

The size of the BSON-encoded string in value

Definition at line 14268 of file json.hpp.

References nlohmann::detail::value.

calc_bson_unsigned_size()

template<typename BasicJsonType , typename CharType >

static constexpr std::size_t nlohmann::detail::binary_writer< BasicJsonType, CharType >::calc_bson_unsigned_size ( const std::uint64_t  value )

inlinestaticconstexprprivatenoexcept

Returns

The size of the BSON-encoded unsigned integer in j

Definition at line 14326 of file json.hpp.

References nlohmann::detail::value.

get_cbor_float_prefix() [1/2]

template<typename BasicJsonType , typename CharType >

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::get_cbor_float_prefix ( double  )

inlinestaticconstexprprivate

Definition at line 14556 of file json.hpp.

get_cbor_float_prefix() [2/2]

template<typename BasicJsonType , typename CharType >

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::get_cbor_float_prefix ( float  )

inlinestaticconstexprprivate

Definition at line 14551 of file json.hpp.

get_msgpack_float_prefix() [1/2]

template<typename BasicJsonType , typename CharType >

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::get_msgpack_float_prefix ( double  )

inlinestaticconstexprprivate

Definition at line 14570 of file json.hpp.

get_msgpack_float_prefix() [2/2]

template<typename BasicJsonType , typename CharType >

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::get_msgpack_float_prefix ( float  )

inlinestaticconstexprprivate

Definition at line 14565 of file json.hpp.

get_ubjson_float_prefix() [1/2]

template<typename BasicJsonType , typename CharType >

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::get_ubjson_float_prefix ( double  )

inlinestaticconstexprprivate

Definition at line 14808 of file json.hpp.

get_ubjson_float_prefix() [2/2]

template<typename BasicJsonType , typename CharType >

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::get_ubjson_float_prefix ( float  )

inlinestaticconstexprprivate

Definition at line 14803 of file json.hpp.

to_char_type() [1/4]

template<typename BasicJsonType , typename CharType >

template<typename InputCharType , typename C = CharType, enable_if_t< std::is_signed< C >::value &&std::is_signed< char >::value &&std::is_same< char, typename std::remove_cv< InputCharType >::type >::value > * = nullptr>

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::to_char_type ( InputCharType  x )

inlinestaticconstexprnoexcept

Definition at line 14908 of file json.hpp.

to_char_type() [2/4]

template<typename BasicJsonType , typename CharType >

template<typename C = CharType, enable_if_t< std::is_signed< C >::value &&std::is_signed< char >::value > * = nullptr>

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::to_char_type ( std::uint8_t  x )

inlinestaticconstexprnoexcept

Definition at line 14879 of file json.hpp.

Referenced by nlohmann::detail::serializer< BasicJsonType >::for().

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to_char_type() [3/4]

template<typename BasicJsonType , typename CharType >

template<typename C = CharType, enable_if_t< std::is_signed< C >::value &&std::is_unsigned< char >::value > * = nullptr>

static CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::to_char_type ( std::uint8_t  x )

inlinestaticnoexcept

Definition at line 14886 of file json.hpp.

to_char_type() [4/4]

template<typename BasicJsonType , typename CharType >

template<typename C = CharType, enable_if_t< std::is_unsigned< C >::value > * = nullptr>

static constexpr CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::to_char_type ( std::uint8_t  x )

inlinestaticconstexprnoexcept

Definition at line 14897 of file json.hpp.

ubjson_prefix()

template<typename BasicJsonType , typename CharType >

CharType nlohmann::detail::binary_writer< BasicJsonType, CharType >::ubjson_prefix ( const BasicJsonType &  j ) const

inlineprivatenoexcept

determine the type prefix of container values

Definition at line 14722 of file json.hpp.

write_bson()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson ( const BasicJsonType &  j )

inline

Parameters

[in]

j

JSON value to serialize

Precondition

j.type() == value_t::object

Definition at line 13335 of file json.hpp.

References JSON_THROW.

Referenced by nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::to_bson(), and nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::to_bson().

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write_bson_array()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_array ( const string_t &  name, const typename BasicJsonType::array_t &  value  )

inlineprivate

Writes a BSON element with key name and array value.

Definition at line 14391 of file json.hpp.

References nlohmann::detail::value.

write_bson_binary()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_binary ( const string_t &  name, const binary_t &  value  )

inlineprivate

Writes a BSON element with key name and binary value value.

Definition at line 14410 of file json.hpp.

References nlohmann::detail::value.

write_bson_boolean()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_boolean ( const string_t &  name, const bool  value  )

inlineprivate

Writes a BSON element with key name and boolean value value.

Definition at line 14248 of file json.hpp.

References nlohmann::detail::value.

write_bson_double()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_double ( const string_t &  name, const double  value  )

inlineprivate

Writes a BSON element with key name and double value value.

Definition at line 14258 of file json.hpp.

References nlohmann::detail::value.

write_bson_element()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_element ( const string_t &  name, const BasicJsonType &  j  )

inlineprivate

Serializes the JSON value j to BSON and associates it with the key name.

Parameters

name	The name to associate with the JSON entity j within the current BSON document

Definition at line 14473 of file json.hpp.

References JSON_ASSERT.

write_bson_entry_header()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_entry_header ( const string_t &  name, const std::uint8_t  element_type  )

inlineprivate

Writes the given element_type and name to the output adapter.

Definition at line 14236 of file json.hpp.

write_bson_integer()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_integer ( const string_t &  name, const std::int64_t  value  )

inlineprivate

Writes a BSON element with key name and integer value.

Definition at line 14308 of file json.hpp.

References nlohmann::detail::value.

write_bson_null()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_null ( const string_t &  name )

inlineprivate

Writes a BSON element with key name and null value.

Definition at line 14290 of file json.hpp.

write_bson_object()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_object ( const typename BasicJsonType::object_t &  value )

inlineprivate

Parameters

[in]

value

JSON value to serialize

Precondition

value.type() == value_t::object

Definition at line 14535 of file json.hpp.

References nlohmann::detail::value.

write_bson_object_entry()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_object_entry ( const string_t &  name, const typename BasicJsonType::object_t &  value  )

inlineprivate

Writes a BSON element with key name and object value.

Definition at line 14358 of file json.hpp.

References nlohmann::detail::value.

write_bson_string()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_string ( const string_t &  name, const string_t &  value  )

inlineprivate

Writes a BSON element with key name and string value value.

Definition at line 14276 of file json.hpp.

References nlohmann::detail::value.

write_bson_unsigned()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_bson_unsigned ( const string_t &  name, const BasicJsonType &  j  )

inlineprivate

Writes a BSON element with key name and unsigned value.

Definition at line 14336 of file json.hpp.

References JSON_THROW.

write_cbor()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_cbor ( const BasicJsonType &  j )

inline

Parameters

[in]

j

JSON value to serialize

Definition at line 13364 of file json.hpp.

References nlohmann::detail::cbor.

Referenced by nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::to_cbor(), and nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::to_cbor().

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write_compact_float()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_compact_float ( const number_float_t  n, detail::input_format_t  format  )

inlineprivate

Definition at line 14845 of file json.hpp.

References nlohmann::detail::cbor.

write_msgpack()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_msgpack ( const BasicJsonType &  j )

inline

Parameters

[in]

j

JSON value to serialize

Definition at line 13688 of file json.hpp.

References nlohmann::detail::msgpack.

Referenced by nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::to_msgpack(), and nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::to_msgpack().

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write_number()

template<typename BasicJsonType , typename CharType >

template<typename NumberType , bool OutputIsLittleEndian = false>

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_number ( const NumberType  n )

inlineprivate

Definition at line 14829 of file json.hpp.

write_number_with_ubjson_prefix() [1/3]

template<typename BasicJsonType , typename CharType >

template<typename NumberType , typename std::enable_if< std::is_floating_point< NumberType >::value, int >::type = 0>

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_number_with_ubjson_prefix ( const NumberType  n, const bool  add_prefix  )

inlineprivate

Definition at line 14582 of file json.hpp.

write_number_with_ubjson_prefix() [2/3]

template<typename BasicJsonType , typename CharType >

template<typename NumberType , typename std::enable_if< std::is_unsigned< NumberType >::value, int >::type = 0>

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_number_with_ubjson_prefix ( const NumberType  n, const bool  add_prefix  )

inlineprivate

Definition at line 14595 of file json.hpp.

write_number_with_ubjson_prefix() [3/3]

template<typename BasicJsonType , typename CharType >

template<typename NumberType , typename std::enable_if< std::is_signed< NumberType >::value &&!std::is_floating_point< NumberType >::value, int >::type = 0>

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_number_with_ubjson_prefix ( const NumberType  n, const bool  add_prefix  )

inlineprivate

Definition at line 14658 of file json.hpp.

write_ubjson()

template<typename BasicJsonType , typename CharType >

void nlohmann::detail::binary_writer< BasicJsonType, CharType >::write_ubjson ( const BasicJsonType &  j, const bool  use_count, const bool  use_type, const bool  add_prefix = true  )

inline

Parameters

[in]	j	JSON value to serialize
[in]	use_count	whether to use '#' prefixes (optimized format)
[in]	use_type	whether to use '$' prefixes (optimized format)
[in]	add_prefix	whether prefixes need to be used for this value

Definition at line 14013 of file json.hpp.

References JSON_ASSERT.

Referenced by nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::to_ubjson(), and nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::to_ubjson().

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Field Documentation

is_little_endian

template<typename BasicJsonType , typename CharType >

const bool nlohmann::detail::binary_writer< BasicJsonType, CharType >::is_little_endian = little_endianness()

private

whether we can assume little endianness

Definition at line 14915 of file json.hpp.

oa

template<typename BasicJsonType , typename CharType >

output_adapter_t<CharType> nlohmann::detail::binary_writer< BasicJsonType, CharType >::oa = nullptr

private

the output

Definition at line 14918 of file json.hpp.

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The documentation for this class was generated from the following file:

• json.hpp