Skip to content

J
json

畅游知识海洋 / json
与 Fork 源项目一致

从无法访问的项目Fork

通知 1
Star 0
Fork 0
J
json

体验新版 GitCode，发现更多精彩内容 >>

未验证 提交 7d19aed5 编写于 作者: N Niels Lohmann
浏览文件
操作

🔨 cleanup

上级 6151b056
隐藏空白更改
内联 并排
Showing with 117 addition and 168 deletion
src/json.hpp
浏览文件 @ 7d19aed5
......@@ -465,7 +465,6 @@ inline bool operator<(const value_t lhs, const value_t rhs) noexcept
// discarded values are not comparable
return lhs != value_t::discarded and rhs != value_t::discarded and
order[static_cast<std::size_t>(lhs)] < order[static_cast<std::size_t>(rhs)];
}
......@@ -1075,11 +1074,11 @@ void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
{
JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
}
for (auto it = j.rbegin(), end = j.rend(); it != end; ++it)
std::transform(j.rbegin(), j.rend(),
std::front_inserter(l), [](const BasicJsonType & i)
{
l.push_front(it->template get<T>());
}
return i.template get<T>();
});
}
template<typename BasicJsonType, typename CompatibleArrayType>
......@@ -1673,7 +1672,8 @@ class lexer
assert(current == 'u');
int codepoint = 0;
for (int factor = 12; factor >= 0; factor -= 4)
const auto factors = { 12, 8, 4, 0 };
for (const auto factor : factors)
{
get();
......@@ -2520,11 +2520,12 @@ scan_number_done:
add('\0');
--yylen;
char* endptr = nullptr;
errno = 0;
// try to parse integers first and fall back to floats
if (number_type == token_type::value_unsigned)
{
char* endptr = nullptr;
errno = 0;
const auto x = std::strtoull(yytext.data(), &endptr, 10);
// we checked the number format before
......@@ -2541,8 +2542,6 @@ scan_number_done:
}
else if (number_type == token_type::value_integer)
{
char* endptr = nullptr;
errno = 0;
const auto x = std::strtoll(yytext.data(), &endptr, 10);
// we checked the number format before
......@@ -2560,7 +2559,11 @@ scan_number_done:
// this code is reached if we parse a floating-point number or if an
// integer conversion above failed
strtof(value_float, yytext.data(), nullptr);
strtof(value_float, yytext.data(), &endptr);
// we checked the number format before
assert(endptr == yytext.data() + yylen);
return token_type::value_float;
}
......@@ -2683,7 +2686,7 @@ scan_number_done:
else
{
// add character as is
result.append(1, c);
result.push_back(c);
}
}
......@@ -2834,8 +2837,7 @@ class parser
explicit parser(detail::input_adapter_t adapter,
const parser_callback_t cb = nullptr,
const bool allow_exceptions_ = true)
: callback(cb), m_lexer(adapter),
allow_exceptions(allow_exceptions_)
: callback(cb), m_lexer(adapter), allow_exceptions(allow_exceptions_)
{}
/*!
......@@ -4573,57 +4575,27 @@ class binary_reader
case 0x96:
case 0x97:
{
BasicJsonType result = value_t::array;
const auto len = static_cast<size_t>(current & 0x1f);
for (std::size_t i = 0; i < len; ++i)
{
result.push_back(parse_cbor());
}
return result;
return get_cbor_array(current & 0x1f);
}
case 0x98: // array (one-byte uint8_t for n follows)
{
BasicJsonType result = value_t::array;
const auto len = static_cast<size_t>(get_number<uint8_t>());
for (std::size_t i = 0; i < len; ++i)
{
result.push_back(parse_cbor());
}
return result;
return get_cbor_array(get_number<uint8_t>());
}
case 0x99: // array (two-byte uint16_t for n follow)
{
BasicJsonType result = value_t::array;
const auto len = static_cast<size_t>(get_number<uint16_t>());
for (std::size_t i = 0; i < len; ++i)
{
result.push_back(parse_cbor());
}
return result;
return get_cbor_array(get_number<uint16_t>());
}
case 0x9a: // array (four-byte uint32_t for n follow)
{
BasicJsonType result = value_t::array;
const auto len = static_cast<size_t>(get_number<uint32_t>());
for (std::size_t i = 0; i < len; ++i)
{
result.push_back(parse_cbor());
}
return result;
return get_cbor_array(get_number<uint32_t>());
}
case 0x9b: // array (eight-byte uint64_t for n follow)
{
BasicJsonType result = value_t::array;
const auto len = static_cast<size_t>(get_number<uint64_t>());
for (std::size_t i = 0; i < len; ++i)
{
result.push_back(parse_cbor());
}
return result;
return get_cbor_array(get_number<uint64_t>());
}
case 0x9f: // array (indefinite length)
......@@ -4662,67 +4634,27 @@ class binary_reader
case 0xb6:
case 0xb7:
{
BasicJsonType result = value_t::object;
const auto len = static_cast<size_t>(current & 0x1f);
for (std::size_t i = 0; i < len; ++i)
{
get();
auto key = get_cbor_string();
result[key] = parse_cbor();
}
return result;
return get_cbor_object(current & 0x1f);
}
case 0xb8: // map (one-byte uint8_t for n follows)
{
BasicJsonType result = value_t::object;
const auto len = static_cast<size_t>(get_number<uint8_t>());
for (std::size_t i = 0; i < len; ++i)
{
get();
auto key = get_cbor_string();
result[key] = parse_cbor();
}
return result;
return get_cbor_object(get_number<uint8_t>());
}
case 0xb9: // map (two-byte uint16_t for n follow)
{
BasicJsonType result = value_t::object;
const auto len = static_cast<size_t>(get_number<uint16_t>());
for (std::size_t i = 0; i < len; ++i)
{
get();
auto key = get_cbor_string();
result[key] = parse_cbor();
}
return result;
return get_cbor_object(get_number<uint16_t>());
}
case 0xba: // map (four-byte uint32_t for n follow)
{
BasicJsonType result = value_t::object;
const auto len = static_cast<size_t>(get_number<uint32_t>());
for (std::size_t i = 0; i < len; ++i)
{
get();
auto key = get_cbor_string();
result[key] = parse_cbor();
}
return result;
return get_cbor_object(get_number<uint32_t>());
}
case 0xbb: // map (eight-byte uint64_t for n follow)
{
BasicJsonType result = value_t::object;
const auto len = static_cast<size_t>(get_number<uint64_t>());
for (std::size_t i = 0; i < len; ++i)
{
get();
auto key = get_cbor_string();
result[key] = parse_cbor();
}
return result;
return get_cbor_object(get_number<uint64_t>());
}
case 0xbf: // map (indefinite length)
......@@ -4970,15 +4902,7 @@ class binary_reader
case 0x8e:
case 0x8f:
{
BasicJsonType result = value_t::object;
const auto len = static_cast<size_t>(current & 0x0f);
for (std::size_t i = 0; i < len; ++i)
{
get();
auto key = get_msgpack_string();
result[key] = parse_msgpack();
}
return result;
return get_msgpack_object(current & 0x0f);
}
// fixarray
......@@ -4999,13 +4923,7 @@ class binary_reader
case 0x9e:
case 0x9f:
{
BasicJsonType result = value_t::array;
const auto len = static_cast<size_t>(current & 0x0f);
for (std::size_t i = 0; i < len; ++i)
{
result.push_back(parse_msgpack());
}
return result;
return get_msgpack_array(current & 0x0f);
}
// fixstr
......@@ -5089,50 +5007,22 @@ class binary_reader
case 0xdc: // array 16
{
BasicJsonType result = value_t::array;
const auto len = static_cast<size_t>(get_number<uint16_t>());
for (std::size_t i = 0; i < len; ++i)
{
result.push_back(parse_msgpack());
}
return result;
return get_msgpack_array(get_number<uint16_t>());
}
case 0xdd: // array 32
{
BasicJsonType result = value_t::array;
const auto len = static_cast<size_t>(get_number<uint32_t>());
for (std::size_t i = 0; i < len; ++i)
{
result.push_back(parse_msgpack());
}
return result;
return get_msgpack_array(get_number<uint32_t>());
}
case 0xde: // map 16
{
BasicJsonType result = value_t::object;
const auto len = static_cast<size_t>(get_number<uint16_t>());
for (std::size_t i = 0; i < len; ++i)
{
get();
auto key = get_msgpack_string();
result[key] = parse_msgpack();
}
return result;
return get_msgpack_object(get_number<uint16_t>());
}
case 0xdf: // map 32
{
BasicJsonType result = value_t::object;
const auto len = static_cast<size_t>(get_number<uint32_t>());
for (std::size_t i = 0; i < len; ++i)
{
get();
auto key = get_msgpack_string();
result[key] = parse_msgpack();
}
return result;
return get_msgpack_object(get_number<uint32_t>());
}
// positive fixint
......@@ -5260,15 +5150,16 @@ class binary_reader
@throw parse_error.110 if input has less than @a len bytes
*/
std::string get_string(const std::size_t len)
template<typename NumberType>
std::string get_string(const NumberType len)
{
std::string result;
for (std::size_t i = 0; i < len; ++i)
std::generate_n(std::back_inserter(result), len, [this]()
{
get();
check_eof();
result.append(1, static_cast<char>(current));
}
return current;
});
return result;
}
......@@ -5316,32 +5207,27 @@ class binary_reader
case 0x76:
case 0x77:
{
const auto len = static_cast<size_t>(current & 0x1f);
return get_string(len);
return get_string(current & 0x1f);
}
case 0x78: // UTF-8 string (one-byte uint8_t for n follows)
{
const auto len = static_cast<size_t>(get_number<uint8_t>());
return get_string(len);
return get_string(get_number<uint8_t>());
}
case 0x79: // UTF-8 string (two-byte uint16_t for n follow)
{
const auto len = static_cast<size_t>(get_number<uint16_t>());
return get_string(len);
return get_string(get_number<uint16_t>());
}
case 0x7a: // UTF-8 string (four-byte uint32_t for n follow)
{
const auto len = static_cast<size_t>(get_number<uint32_t>());
return get_string(len);
return get_string(get_number<uint32_t>());
}
case 0x7b: // UTF-8 string (eight-byte uint64_t for n follow)
{
const auto len = static_cast<size_t>(get_number<uint64_t>());
return get_string(len);
return get_string(get_number<uint64_t>());
}
case 0x7f: // UTF-8 string (indefinite length)
......@@ -5350,7 +5236,7 @@ class binary_reader
while (get() != 0xff)
{
check_eof();
result.append(1, static_cast<char>(current));
result.push_back(static_cast<char>(current));
}
return result;
}
......@@ -5364,6 +5250,33 @@ class binary_reader
}
}
template<typename NumberType>
BasicJsonType get_cbor_array(const NumberType len)
{
BasicJsonType result = value_t::array;
std::generate_n(std::back_inserter(*result.m_value.array), len, [this]()
{
return parse_cbor();
});
return result;
}
template<typename NumberType>
BasicJsonType get_cbor_object(const NumberType len)
{
BasicJsonType result = value_t::object;
std::generate_n(std::inserter(*result.m_value.object,
result.m_value.object->end()),
len, [this]()
{
get();
auto key = get_cbor_string();
auto val = parse_cbor();
return std::make_pair(std::move(key), std::move(val));
});
return result;
}
/*!
@brief reads a MessagePack string
......@@ -5415,26 +5328,22 @@ class binary_reader
case 0xbe:
case 0xbf:
{
const auto len = static_cast<size_t>(current & 0x1f);
return get_string(len);
return get_string(current & 0x1f);
}
case 0xd9: // str 8
{
const auto len = static_cast<size_t>(get_number<uint8_t>());
return get_string(len);
return get_string(get_number<uint8_t>());
}
case 0xda: // str 16
{
const auto len = static_cast<size_t>(get_number<uint16_t>());
return get_string(len);
return get_string(get_number<uint16_t>());
}
case 0xdb: // str 32
{
const auto len = static_cast<size_t>(get_number<uint32_t>());
return get_string(len);
return get_string(get_number<uint32_t>());
}
default:
......@@ -5447,6 +5356,33 @@ class binary_reader
}
}
template<typename NumberType>
BasicJsonType get_msgpack_array(const NumberType len)
{
BasicJsonType result = value_t::array;
std::generate_n(std::back_inserter(*result.m_value.array), len, [this]()
{
return parse_msgpack();
});
return result;
}
template<typename NumberType>
BasicJsonType get_msgpack_object(const NumberType len)
{
BasicJsonType result = value_t::object;
std::generate_n(std::inserter(*result.m_value.object,
result.m_value.object->end()),
len, [this]()
{
get();
auto key = get_msgpack_string();
auto val = parse_msgpack();
return std::make_pair(std::move(key), std::move(val));
});
return result;
}
/*!
@brief check if input ended
@throw parse_error.110 if input ended
......@@ -6091,6 +6027,7 @@ class serializer
// last element
assert(i != val.m_value.object->cend());
assert(std::next(i) == val.m_value.object->cend());
o->write_characters(indent_string.c_str(), new_indent);
o->write_character('\"');
dump_escaped(i->first, ensure_ascii);
......@@ -6118,6 +6055,7 @@ class serializer
// last element
assert(i != val.m_value.object->cend());
assert(std::next(i) == val.m_value.object->cend());
o->write_character('\"');
dump_escaped(i->first, ensure_ascii);
o->write_characters("\":", 2);
......@@ -6338,7 +6276,7 @@ class serializer
if (bytes == 3)
{
// codepoints that need 4 bytes (i.e., 3 additional
// bytes) in UTF-8 needs a surrogate pair when \u
// bytes) in UTF-8 need a surrogate pair when \u
// escaping is used: from 4 bytes to \uxxxx\uxxxx
// (12 bytes)
res += (12 - bytes - 1);
......@@ -7244,6 +7182,9 @@ class basic_json
friend class ::nlohmann::detail::iter_impl;
template<typename BasicJsonType, typename CharType>
friend class ::nlohmann::detail::binary_writer;
template<typename BasicJsonType>
friend class ::nlohmann::detail::binary_reader;
/// workaround type for MSVC
using basic_json_t = NLOHMANN_BASIC_JSON_TPL;
......@@ -12858,6 +12799,10 @@ class basic_json
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a CBOR value.
@note If NaN or Infinity are stored inside a JSON number, they are
serialized properly. This behavior differs from the @ref dump()
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)
......@@ -12885,7 +12830,7 @@ class basic_json
@sa http://cbor.io
@sa @ref from_cbor(const std::vector<uint8_t>&, const size_t) for the
analogous deserialization
@sa @ref to_msgpack(const basic_json& for the related MessagePack format
@sa @ref to_msgpack(const basic_json&) for the related MessagePack format
@since version 2.0.9
*/
......@@ -12965,6 +12910,10 @@ class basic_json
@note Any MessagePack output created @ref to_msgpack can be successfully
parsed by @ref from_msgpack.
@note If NaN or Infinity are stored inside a JSON number, they are
serialized properly. This behavior differs from the @ref dump()
function which serializes NaN or Infinity to `null`.
@param[in] j JSON value to serialize
@return MessagePack serialization as byte vector
......@@ -14324,7 +14273,7 @@ struct hash<nlohmann::json>
/// @note: do not remove the space after '<',
/// see https://github.com/nlohmann/json/pull/679
template<>
struct less< ::nlohmann::detail::value_t>
struct less< ::nlohmann::detail::value_t>
{
/*!
@brief compare two value_t enum values
......
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或