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// ArduinoJson - https://arduinojson.org
// Copyright Benoit Blanchon 2014-2021
// MIT License
#pragma once
#include <ArduinoJson/MsgPack/endianess.hpp>
#include <ArduinoJson/Polyfills/assert.hpp>
#include <ArduinoJson/Polyfills/type_traits.hpp>
#include <ArduinoJson/Serialization/CountingDecorator.hpp>
#include <ArduinoJson/Serialization/measure.hpp>
#include <ArduinoJson/Serialization/serialize.hpp>
#include <ArduinoJson/Variant/VariantData.hpp>
namespace ARDUINOJSON_NAMESPACE {
template <typename TWriter>
class MsgPackSerializer : public Visitor<size_t> {
public:
static const bool producesText = false;
MsgPackSerializer(TWriter writer) : _writer(writer) {}
template <typename T>
typename enable_if<sizeof(T) == 4, size_t>::type visitFloat(T value32) {
writeByte(0xCA);
writeInteger(value32);
return bytesWritten();
}
template <typename T>
ARDUINOJSON_NO_SANITIZE("float-cast-overflow")
typename enable_if<sizeof(T) == 8, size_t>::type visitFloat(T value64) {
float value32 = float(value64);
if (value32 == value64) {
writeByte(0xCA);
writeInteger(value32);
} else {
writeByte(0xCB);
writeInteger(value64);
}
return bytesWritten();
}
size_t visitArray(const CollectionData& array) {
size_t n = array.size();
if (n < 0x10) {
writeByte(uint8_t(0x90 + array.size()));
} else if (n < 0x10000) {
writeByte(0xDC);
writeInteger(uint16_t(n));
} else {
writeByte(0xDD);
writeInteger(uint32_t(n));
}
for (VariantSlot* slot = array.head(); slot; slot = slot->next()) {
slot->data()->accept(*this);
}
return bytesWritten();
}
size_t visitObject(const CollectionData& object) {
size_t n = object.size();
if (n < 0x10) {
writeByte(uint8_t(0x80 + n));
} else if (n < 0x10000) {
writeByte(0xDE);
writeInteger(uint16_t(n));
} else {
writeByte(0xDF);
writeInteger(uint32_t(n));
}
for (VariantSlot* slot = object.head(); slot; slot = slot->next()) {
visitString(slot->key());
slot->data()->accept(*this);
}
return bytesWritten();
}
size_t visitString(const char* value) {
ARDUINOJSON_ASSERT(value != NULL);
size_t n = strlen(value);
if (n < 0x20) {
writeByte(uint8_t(0xA0 + n));
} else if (n < 0x100) {
writeByte(0xD9);
writeInteger(uint8_t(n));
} else if (n < 0x10000) {
writeByte(0xDA);
writeInteger(uint16_t(n));
} else {
writeByte(0xDB);
writeInteger(uint32_t(n));
}
writeBytes(reinterpret_cast<const uint8_t*>(value), n);
return bytesWritten();
}
size_t visitRawJson(const char* data, size_t size) {
writeBytes(reinterpret_cast<const uint8_t*>(data), size);
return bytesWritten();
}
size_t visitSignedInteger(Integer value) {
if (value > 0) {
visitUnsignedInteger(static_cast<UInt>(value));
} else if (value >= -0x20) {
writeInteger(int8_t(value));
} else if (value >= -0x80) {
writeByte(0xD0);
writeInteger(int8_t(value));
} else if (value >= -0x8000) {
writeByte(0xD1);
writeInteger(int16_t(value));
}
#if ARDUINOJSON_USE_LONG_LONG
else if (value >= -0x80000000LL)
#else
else
#endif
{
writeByte(0xD2);
writeInteger(int32_t(value));
}
#if ARDUINOJSON_USE_LONG_LONG
else {
writeByte(0xD3);
writeInteger(int64_t(value));
}
#endif
return bytesWritten();
}
size_t visitUnsignedInteger(UInt value) {
if (value <= 0x7F) {
writeInteger(uint8_t(value));
} else if (value <= 0xFF) {
writeByte(0xCC);
writeInteger(uint8_t(value));
} else if (value <= 0xFFFF) {
writeByte(0xCD);
writeInteger(uint16_t(value));
}
#if ARDUINOJSON_USE_LONG_LONG
else if (value <= 0xFFFFFFFF)
#else
else
#endif
{
writeByte(0xCE);
writeInteger(uint32_t(value));
}
#if ARDUINOJSON_USE_LONG_LONG
else {
writeByte(0xCF);
writeInteger(uint64_t(value));
}
#endif
return bytesWritten();
}
size_t visitBoolean(bool value) {
writeByte(value ? 0xC3 : 0xC2);
return bytesWritten();
}
size_t visitNull() {
writeByte(0xC0);
return bytesWritten();
}
private:
size_t bytesWritten() const {
return _writer.count();
}
void writeByte(uint8_t c) {
_writer.write(c);
}
void writeBytes(const uint8_t* p, size_t n) {
_writer.write(p, n);
}
template <typename T>
void writeInteger(T value) {
fixEndianess(value);
writeBytes(reinterpret_cast<uint8_t*>(&value), sizeof(value));
}
CountingDecorator<TWriter> _writer;
};
template <typename TSource, typename TDestination>
inline size_t serializeMsgPack(const TSource& source, TDestination& output) {
return serialize<MsgPackSerializer>(source, output);
}
template <typename TSource>
inline size_t serializeMsgPack(const TSource& source, void* output,
size_t size) {
return serialize<MsgPackSerializer>(source, output, size);
}
template <typename TSource>
inline size_t measureMsgPack(const TSource& source) {
return measure<MsgPackSerializer>(source);
}
} // namespace ARDUINOJSON_NAMESPACE
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