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Niels Lohmann committed 2023-11-29 18:01:57 +01:00
1 parent 9cca280a4d
commit 311ad0b877
123 files changed
+17729 -15754
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include/nlohmann/detail/output/binary_writer.hpp
+74 -95
View File
@@ -8,16 +8,16 @@
#pragma once
#include <algorithm> // reverse
#include <array> // array
#include <map> // map
#include <cmath> // isnan, isinf
#include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
#include <cstring> // memcpy
#include <limits> // numeric_limits
#include <string> // string
#include <utility> // move
#include <vector> // vector
#include <algorithm> // reverse
#include <array> // array
#include <cmath> // isnan, isinf
#include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
#include <cstring> // memcpy
#include <limits> // numeric_limits
#include <map> // map
#include <string> // string
#include <utility> // move
#include <vector> // vector
#include <nlohmann/detail/input/binary_reader.hpp>
#include <nlohmann/detail/macro_scope.hpp>
@@ -25,8 +25,7 @@
#include <nlohmann/detail/string_concat.hpp>
NLOHMANN_JSON_NAMESPACE_BEGIN
namespace detail
{
namespace detail {
///////////////////
// binary writer //
@@ -48,7 +47,8 @@ class binary_writer
@param[in] adapter output adapter to write to
*/
explicit binary_writer(output_adapter_t<CharType> adapter) : oa(std::move(adapter))
explicit binary_writer(output_adapter_t<CharType> adapter)
: oa(std::move(adapter))
{
JSON_ASSERT(oa);
}
@@ -99,8 +99,8 @@ class binary_writer
case value_t::boolean:
{
oa->write_character(j.m_data.m_value.boolean
? to_char_type(0xF5)
: to_char_type(0xF4));
? to_char_type(0xF5)
: to_char_type(0xF4));
break;
}
@@ -414,17 +414,17 @@ class binary_writer
{
switch (j.type())
{
case value_t::null: // nil
case value_t::null: // nil
{
oa->write_character(to_char_type(0xC0));
break;
}
case value_t::boolean: // true and false
case value_t::boolean: // true and false
{
oa->write_character(j.m_data.m_value.boolean
? to_char_type(0xC3)
: to_char_type(0xC2));
? to_char_type(0xC3)
: to_char_type(0xC2));
break;
}
@@ -626,30 +626,29 @@ class binary_writer
switch (N)
{
case 1:
output_type = 0xD4; // fixext 1
output_type = 0xD4; // fixext 1
break;
case 2:
output_type = 0xD5; // fixext 2
output_type = 0xD5; // fixext 2
break;
case 4:
output_type = 0xD6; // fixext 4
output_type = 0xD6; // fixext 4
break;
case 8:
output_type = 0xD7; // fixext 8
output_type = 0xD7; // fixext 8
break;
case 16:
output_type = 0xD8; // fixext 16
output_type = 0xD8; // fixext 16
break;
default:
output_type = 0xC7; // ext 8
output_type = 0xC7; // ext 8
fixed = false;
break;
}
}
else
{
output_type = 0xC4; // bin 8
output_type = 0xC4; // bin 8
fixed = false;
}
@@ -662,8 +661,8 @@ class binary_writer
else if (N <= (std::numeric_limits<std::uint16_t>::max)())
{
const std::uint8_t output_type = use_ext
? 0xC8 // ext 16
: 0xC5; // bin 16
? 0xC8 // ext 16
: 0xC5; // bin 16
oa->write_character(to_char_type(output_type));
write_number(static_cast<std::uint16_t>(N));
@@ -671,8 +670,8 @@ class binary_writer
else if (N <= (std::numeric_limits<std::uint32_t>::max)())
{
const std::uint8_t output_type = use_ext
? 0xC9 // ext 32
: 0xC6; // bin 32
? 0xC9 // ext 32
: 0xC6; // bin 32
oa->write_character(to_char_type(output_type));
write_number(static_cast<std::uint32_t>(N));
@@ -736,9 +735,7 @@ class binary_writer
@param[in] add_prefix whether prefixes need to be used for this value
@param[in] use_bjdata whether write in BJData format, default is false
*/
void write_ubjson(const BasicJsonType& j, const bool use_count,
const bool use_type, const bool add_prefix = true,
const bool use_bjdata = false)
void write_ubjson(const BasicJsonType& j, const bool use_count, const bool use_type, const bool add_prefix = true, const bool use_bjdata = false)
{
switch (j.type())
{
@@ -756,8 +753,8 @@ class binary_writer
if (add_prefix)
{
oa->write_character(j.m_data.m_value.boolean
? to_char_type('T')
: to_char_type('F'));
? to_char_type('T')
: to_char_type('F'));
}
break;
}
@@ -805,13 +802,11 @@ class binary_writer
{
JSON_ASSERT(use_count);
const CharType first_prefix = ubjson_prefix(j.front(), use_bjdata);
const bool same_prefix = std::all_of(j.begin() + 1, j.end(),
[this, first_prefix, use_bjdata](const BasicJsonType & v)
{
const bool same_prefix = std::all_of(j.begin() + 1, j.end(), [this, first_prefix, use_bjdata](const BasicJsonType& v) {
return ubjson_prefix(v, use_bjdata) == first_prefix;
});
std::vector<CharType> bjdx = {'[', '{', 'S', 'H', 'T', 'F', 'N', 'Z'}; // excluded markers in bjdata optimized type
std::vector<CharType> bjdx = {'[', '{', 'S', 'H', 'T', 'F', 'N', 'Z'}; // excluded markers in bjdata optimized type
if (same_prefix && !(use_bjdata && std::find(bjdx.begin(), bjdx.end(), first_prefix) != bjdx.end()))
{
@@ -903,13 +898,11 @@ class binary_writer
{
JSON_ASSERT(use_count);
const CharType first_prefix = ubjson_prefix(j.front(), use_bjdata);
const bool same_prefix = std::all_of(j.begin(), j.end(),
[this, first_prefix, use_bjdata](const BasicJsonType & v)
{
const bool same_prefix = std::all_of(j.begin(), j.end(), [this, first_prefix, use_bjdata](const BasicJsonType& v) {
return ubjson_prefix(v, use_bjdata) == first_prefix;
});
std::vector<CharType> bjdx = {'[', '{', 'S', 'H', 'T', 'F', 'N', 'Z'}; // excluded markers in bjdata optimized type
std::vector<CharType> bjdx = {'[', '{', 'S', 'H', 'T', 'F', 'N', 'Z'}; // excluded markers in bjdata optimized type
if (same_prefix && !(use_bjdata && std::find(bjdx.begin(), bjdx.end(), first_prefix) != bjdx.end()))
{
@@ -966,7 +959,7 @@ class binary_writer
static_cast<void>(j);
}
return /*id*/ 1ul + name.size() + /*zero-terminator*/1u;
return /*id*/ 1ul + name.size() + /*zero-terminator*/ 1u;
}
/*!
@@ -975,7 +968,7 @@ class binary_writer
void write_bson_entry_header(const string_t& name,
const std::uint8_t element_type)
{
oa->write_character(to_char_type(element_type)); // boolean
oa->write_character(to_char_type(element_type)); // boolean
oa->write_characters(
reinterpret_cast<const CharType*>(name.c_str()),
name.size() + 1u);
@@ -1037,8 +1030,8 @@ class binary_writer
static std::size_t calc_bson_integer_size(const std::int64_t value)
{
return (std::numeric_limits<std::int32_t>::min)() <= value && value <= (std::numeric_limits<std::int32_t>::max)()
? sizeof(std::int32_t)
: sizeof(std::int64_t);
? sizeof(std::int32_t)
: sizeof(std::int64_t);
}
/*!
@@ -1049,12 +1042,12 @@ class binary_writer
{
if ((std::numeric_limits<std::int32_t>::min)() <= value && value <= (std::numeric_limits<std::int32_t>::max)())
{
write_bson_entry_header(name, 0x10); // int32
write_bson_entry_header(name, 0x10); // int32
write_number<std::int32_t>(static_cast<std::int32_t>(value), true);
}
else
{
write_bson_entry_header(name, 0x12); // int64
write_bson_entry_header(name, 0x12); // int64
write_number<std::int64_t>(static_cast<std::int64_t>(value), true);
}
}
@@ -1065,8 +1058,8 @@ class binary_writer
static constexpr std::size_t calc_bson_unsigned_size(const std::uint64_t value) noexcept
{
return (value <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
? sizeof(std::int32_t)
: sizeof(std::int64_t);
? sizeof(std::int32_t)
: sizeof(std::int64_t);
}
/*!
@@ -1097,7 +1090,7 @@ class binary_writer
void write_bson_object_entry(const string_t& name,
const typename BasicJsonType::object_t& value)
{
write_bson_entry_header(name, 0x03); // object
write_bson_entry_header(name, 0x03); // object
write_bson_object(value);
}
@@ -1108,8 +1101,7 @@ class binary_writer
{
std::size_t array_index = 0ul;
const std::size_t embedded_document_size = std::accumulate(std::begin(value), std::end(value), static_cast<std::size_t>(0), [&array_index](std::size_t result, const typename BasicJsonType::array_t::value_type & el)
{
const std::size_t embedded_document_size = std::accumulate(std::begin(value), std::end(value), static_cast<std::size_t>(0), [&array_index](std::size_t result, const typename BasicJsonType::array_t::value_type& el) {
return result + calc_bson_element_size(std::to_string(array_index++), el);
});
@@ -1130,7 +1122,7 @@ class binary_writer
void write_bson_array(const string_t& name,
const typename BasicJsonType::array_t& value)
{
write_bson_entry_header(name, 0x04); // array
write_bson_entry_header(name, 0x04); // array
write_number<std::int32_t>(static_cast<std::int32_t>(calc_bson_array_size(value)), true);
std::size_t array_index = 0ul;
@@ -1162,7 +1154,7 @@ class binary_writer
@return The calculated size for the BSON document entry for @a j with the given @a name.
*/
static std::size_t calc_bson_element_size(const string_t& name,
const BasicJsonType& j)
const BasicJsonType& j)
{
const auto header_size = calc_bson_entry_header_size(name, j);
switch (j.type())
@@ -1197,7 +1189,7 @@ class binary_writer
// LCOV_EXCL_START
case value_t::discarded:
default:
JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert)
JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert)
return 0ul;
// LCOV_EXCL_STOP
}
@@ -1244,7 +1236,7 @@ class binary_writer
// LCOV_EXCL_START
case value_t::discarded:
default:
JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert)
JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert)
return;
// LCOV_EXCL_STOP
}
@@ -1258,9 +1250,7 @@ class binary_writer
*/
static std::size_t calc_bson_object_size(const typename BasicJsonType::object_t& value)
{
const std::size_t document_size = std::accumulate(value.begin(), value.end(), static_cast<std::size_t>(0),
[](size_t result, const typename BasicJsonType::object_t::value_type & el)
{
const std::size_t document_size = std::accumulate(value.begin(), value.end(), static_cast<std::size_t>(0), [](size_t result, const typename BasicJsonType::object_t::value_type& el) {
return result += calc_bson_element_size(el.first, el.second);
});
@@ -1316,8 +1306,7 @@ class binary_writer
////////////
// UBJSON: write number (floating point)
template<typename NumberType, typename std::enable_if<
std::is_floating_point<NumberType>::value, int>::type = 0>
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,
const bool use_bjdata)
@@ -1330,8 +1319,7 @@ class binary_writer
}
// UBJSON: write number (unsigned integer)
template<typename NumberType, typename std::enable_if<
std::is_unsigned<NumberType>::value, int>::type = 0>
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,
const bool use_bjdata)
@@ -1417,9 +1405,7 @@ class binary_writer
}
// UBJSON: write number (signed integer)
template < typename NumberType, typename std::enable_if <
std::is_signed<NumberType>::value&&
!std::is_floating_point<NumberType>::value, int >::type = 0 >
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,
const bool use_bjdata)
@@ -1542,7 +1528,7 @@ class binary_writer
return 'L';
}
// anything else is treated as high-precision number
return 'H'; // LCOV_EXCL_LINE
return 'H'; // LCOV_EXCL_LINE
}
case value_t::number_unsigned:
@@ -1580,7 +1566,7 @@ class binary_writer
return 'M';
}
// anything else is treated as high-precision number
return 'H'; // LCOV_EXCL_LINE
return 'H'; // LCOV_EXCL_LINE
}
case value_t::number_float:
@@ -1589,7 +1575,7 @@ class binary_writer
case value_t::string:
return 'S';
case value_t::array: // fallthrough
case value_t::array: // fallthrough
case value_t::binary:
return '[';
@@ -1617,9 +1603,7 @@ class binary_writer
*/
bool write_bjdata_ndarray(const typename BasicJsonType::object_t& value, const bool use_count, const bool use_type)
{
std::map<string_t, CharType> bjdtype = {{"uint8", 'U'}, {"int8", 'i'}, {"uint16", 'u'}, {"int16", 'I'},
{"uint32", 'm'}, {"int32", 'l'}, {"uint64", 'M'}, {"int64", 'L'}, {"single", 'd'}, {"double", 'D'}, {"char", 'C'}
};
std::map<string_t, CharType> bjdtype = {{"uint8", 'U'}, {"int8", 'i'}, {"uint16", 'u'}, {"int16", 'I'}, {"uint32", 'm'}, {"int32", 'l'}, {"uint64", 'M'}, {"int64", 'L'}, {"single", 'd'}, {"double", 'D'}, {"char", 'C'}};
string_t key = "_ArrayType_";
auto it = bjdtype.find(static_cast<string_t>(value.at(key)));
@@ -1648,7 +1632,7 @@ class binary_writer
oa->write_character('#');
key = "_ArraySize_";
write_ubjson(value.at(key), use_count, use_type, true, true);
write_ubjson(value.at(key), use_count, use_type, true, true);
key = "_ArrayData_";
if (dtype == 'U' || dtype == 'C')
@@ -1761,27 +1745,27 @@ class binary_writer
void write_compact_float(const number_float_t n, detail::input_format_t format)
{
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wfloat-equal"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wfloat-equal"
#endif
if (static_cast<double>(n) >= static_cast<double>(std::numeric_limits<float>::lowest()) &&
static_cast<double>(n) <= static_cast<double>((std::numeric_limits<float>::max)()) &&
static_cast<double>(static_cast<float>(n)) == static_cast<double>(n))
static_cast<double>(n) <= static_cast<double>((std::numeric_limits<float>::max)()) &&
static_cast<double>(static_cast<float>(n)) == static_cast<double>(n))
{
oa->write_character(format == detail::input_format_t::cbor
? get_cbor_float_prefix(static_cast<float>(n))
: get_msgpack_float_prefix(static_cast<float>(n)));
? get_cbor_float_prefix(static_cast<float>(n))
: get_msgpack_float_prefix(static_cast<float>(n)));
write_number(static_cast<float>(n));
}
else
{
oa->write_character(format == detail::input_format_t::cbor
? get_cbor_float_prefix(n)
: get_msgpack_float_prefix(n));
? get_cbor_float_prefix(n)
: get_msgpack_float_prefix(n));
write_number(n);
}
#ifdef __GNUC__
#pragma GCC diagnostic pop
#pragma GCC diagnostic pop
#endif
}
@@ -1790,15 +1774,15 @@ class binary_writer
// between uint8_t and CharType. In case CharType is not unsigned,
// such a conversion is required to allow values greater than 128.
// See <https://github.com/nlohmann/json/issues/1286> for a discussion.
template < typename C = CharType,
enable_if_t < std::is_signed<C>::value && std::is_signed<char>::value > * = nullptr >
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
{
return *reinterpret_cast<char*>(&x);
}
template < typename C = CharType,
enable_if_t < std::is_signed<C>::value && std::is_unsigned<char>::value > * = nullptr >
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
{
static_assert(sizeof(std::uint8_t) == sizeof(CharType), "size of CharType must be equal to std::uint8_t");
@@ -1815,12 +1799,7 @@ class binary_writer
return x;
}
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 >
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
{
return x;