add arduinoJson

lib/ArduinoJson/src/ArduinoJson/MsgPack/MsgPackSerializer.hpp

@@ -0,0 +1,220 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2022, Benoit BLANCHON
+// 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) {
+    if (canConvertNumber<JsonInteger>(value32)) {
+      JsonInteger truncatedValue = JsonInteger(value32);
+      if (value32 == T(truncatedValue))
+        return visitSignedInteger(truncatedValue);
+    }
+    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)
+      return visitFloat(value32);
+    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 (const 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 (const VariantSlot* slot = object.head(); slot; slot = slot->next()) {
+      visitString(slot->key());
+      slot->data()->accept(*this);
+    }
+    return bytesWritten();
+  }
+
+  size_t visitString(const char* value) {
+    return visitString(value, strlen(value));
+  }
+
+  size_t visitString(const char* value, size_t n) {
+    ARDUINOJSON_ASSERT(value != NULL);
+
+    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(JsonInteger value) {
+    if (value > 0) {
+      visitUnsignedInteger(static_cast<JsonUInt>(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(JsonUInt 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;
+};
+
+// Produces a MessagePack document.
+// https://arduinojson.org/v6/api/msgpack/serializemsgpack/
+template <typename TDestination>
+inline size_t serializeMsgPack(JsonVariantConst source, TDestination& output) {
+  return serialize<MsgPackSerializer>(source, output);
+}
+
+// Produces a MessagePack document.
+// https://arduinojson.org/v6/api/msgpack/serializemsgpack/
+inline size_t serializeMsgPack(JsonVariantConst source, void* output,
+                               size_t size) {
+  return serialize<MsgPackSerializer>(source, output, size);
+}
+
+// Computes the length of the document that serializeMsgPack() produces.
+// https://arduinojson.org/v6/api/msgpack/measuremsgpack/
+inline size_t measureMsgPack(JsonVariantConst source) {
+  return measure<MsgPackSerializer>(source);
+}
+
+}  // namespace ARDUINOJSON_NAMESPACE