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#pragma once
#ifdef SIMDJSON_COMPETITION_RAPIDJSON
#include "json2msgpack.h"
namespace json2msgpack {
using namespace rapidjson;
template <int parseflag>
struct rapidjson2msgpack {
inline std::string_view to_msgpack(char *json, uint8_t *buf);
private:
inline void write_double(const double d) noexcept;
inline void write_byte(const uint8_t b) noexcept;
inline void write_uint32(const uint32_t w) noexcept;
inline void write_uint32_at(const uint32_t w, uint8_t *p) noexcept;
void write_string(const char * s, size_t length) noexcept;
inline void recursive_processor(Value &v);
uint8_t *buff{};
};
template <int parseflag>
std::string_view rapidjson2msgpack<parseflag>::to_msgpack(char *json, uint8_t *buf) {
buff = buf;
Document doc{};
if(parseflag & kParseInsituFlag) {
doc.ParseInsitu<parseflag>(json);
} else {
doc.Parse<parseflag>(json);
}
recursive_processor(doc);
return std::string_view(reinterpret_cast<char *>(buf), size_t(buff - buf));
}
template <int parseflag>
void rapidjson2msgpack<parseflag>::write_double(const double d) noexcept {
*buff++ = 0xcb;
::memcpy(buff, &d, sizeof(d));
buff += sizeof(d);
}
template <int parseflag>
void rapidjson2msgpack<parseflag>::write_byte(const uint8_t b) noexcept {
*buff = b;
buff++;
}
template <int parseflag>
void rapidjson2msgpack<parseflag>::write_string(const char * c, size_t len) noexcept {
write_byte(0xdb);
write_uint32(uint32_t(len));
::memcpy(buff, c, len);
buff += len;
}
template <int parseflag>
void rapidjson2msgpack<parseflag>::write_uint32(const uint32_t w) noexcept {
::memcpy(buff, &w, sizeof(w));
buff += sizeof(w);
}
template <int parseflag>
void rapidjson2msgpack<parseflag>::write_uint32_at(const uint32_t w, uint8_t *p) noexcept {
::memcpy(p, &w, sizeof(w));
}
template <int parseflag>
void rapidjson2msgpack<parseflag>::recursive_processor(Value &v) {
switch (v.GetType()) {
case kArrayType:
write_byte(0xdd);
write_uint32(v.Size());
for (Value::ValueIterator i = v.Begin(); i != v.End(); ++i) {
recursive_processor(*i);
}
break;
case kObjectType:
write_byte(0xdf);
write_uint32(uint32_t(v.MemberEnd()-v.MemberBegin()));
for (Value::MemberIterator m = v.MemberBegin(); m != v.MemberEnd();
++m) {
write_string(m->name.GetString(), m->name.GetStringLength());
recursive_processor(m->value);
}
break;
case kStringType:
write_string(v.GetString(), v.GetStringLength());
break;
case kNumberType:
write_double(v.GetDouble());
break;
case kFalseType:
write_byte(0xc2);
break;
case kTrueType:
write_byte(0xc3);
break;
case kNullType:
write_byte(0xc0);
break;
}
}
template <int parseflag>
struct rapidjson_base {
using StringType = std::string_view;
rapidjson2msgpack<parseflag> parser{};
bool run(simdjson::padded_string &json, char *buffer,
std::string_view &result) {
result =
parser.to_msgpack(json.data(), reinterpret_cast<uint8_t *>(buffer));
return true;
}
};
using rapidjson = rapidjson_base<kParseValidateEncodingFlag|kParseFullPrecisionFlag>;
BENCHMARK_TEMPLATE(json2msgpack, rapidjson)->UseManualTime();
#if SIMDJSON_COMPETITION_ONDEMAND_APPROX
using rapidjson_approx = rapidjson_base<kParseValidateEncodingFlag>;
BENCHMARK_TEMPLATE(json2msgpack, rapidjson_approx)->UseManualTime();
#endif // SIMDJSON_COMPETITION_ONDEMAND_APPROX
#if SIMDJSON_COMPETITION_ONDEMAND_INSITU
using rapidjson_insitu = rapidjson_base<kParseValidateEncodingFlag|kParseInsituFlag>;
BENCHMARK_TEMPLATE(json2msgpack, rapidjson_insitu)->UseManualTime();
#endif // SIMDJSON_COMPETITION_ONDEMAND_INSITU
} // namespace json2msgpack
#endif // SIMDJSON_COMPETITION_RAPIDJSON
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