serialization: Fix inconsistencies in binary serialization

- Fixed incorrect byte alignment following bit-based types.
- Boolean types are now serialized as 1 bit.
- write_to/read_from methods now take an is_file argument.
  Types such as enums, and strings change their serialization format depending on if they're in file mode or not.
- Enums now serialize the element name in file mode, and element value otherwise.

include/ki/pclass/ClassType.h

@@ -26,8 +26,8 @@ namespace pclass
 		 */
 		bool inherits(const Type &type) const;
 
-		void write_to(BitStream &stream, Value &value) const override = 0;
+		void write_to(BitStream &stream, const bool is_file, Value &value) const override = 0;
-		Value read_from(BitStream &stream) const override = 0;
+		Value read_from(BitStream &stream, const bool is_file) const override = 0;
 
 	private:
 		const IClassType *m_base_class;
@@ -64,20 +64,20 @@ namespace pclass
 			);
 		}
 
-		void write_to(BitStream &stream, Value &value) const override
+		void write_to(BitStream &stream, const bool is_file, Value &value) const override
 		{
 			const auto &object = value.get<ClassT>();
 			const auto &properties = object.get_properties();
 			for (auto it = properties.begin(); it != properties.end(); ++it)
-				it->write_value_to(stream);
+				it->write_value_to(stream, is_file);
 		}
 
-		Value read_from(BitStream &stream) const override
+		Value read_from(BitStream &stream, const bool is_file) const override
 		{
 			auto object = ClassT(*this, get_type_system());
 			auto &properties = object.get_properties();
 			for (auto it = properties.begin(); it != properties.end(); ++it)
-				it->read_value_from(stream);
+				it->read_value_from(stream, is_file);
 			return Value::make_value<ClassT>(object);
 		}
 	};

include/ki/pclass/Enum.h

@@ -22,8 +22,8 @@ namespace pclass
 		void set_value(enum_value_t value);
 		void set_value(const std::string &element_name);
 
-		void write_to(BitStream& stream) const;
+		void write_to(BitStream &stream, const bool is_file) const;
-		void read_from(BitStream& stream);
+		void read_from(BitStream &stream, const bool is_file);
 
 		operator enum_value_t() const;
 		void operator=(enum_value_t value);

include/ki/pclass/EnumType.h

@@ -49,8 +49,8 @@ namespace pclass
 
 		EnumType &add_element(const std::string &name, enum_value_t value);
 
-		void write_to(BitStream &stream, Value &value) const override;
+		void write_to(BitStream &stream, const bool is_file, Value &value) const override;
-		Value read_from(BitStream &stream) const override;
+		Value read_from(BitStream &stream, const bool is_file) const override;
 
 	private:
 		std::vector<Element *> m_elements;
@@ -75,17 +75,17 @@ namespace pclass
 			m_kind = Kind::ENUM;
 		}
 
-		void write_to(BitStream &stream, Value &value) const override
+		void write_to(BitStream &stream, const bool is_file, Value &value) const override
 		{
 			auto &enum_reference = value.get<EnumT>();
 			auto &underlying_reference = reinterpret_cast<const underlying_type &>(enum_reference);
-			detail::primitive_type_helper<underlying_type>::write_to(stream, underlying_reference);
+			detail::primitive_type_helper<underlying_type>::write_to(stream, is_file, underlying_reference);
 		}
 
-		Value read_from(BitStream &stream) const override
+		Value read_from(BitStream &stream, const bool is_file) const override
 		{
 			Value read_result =
-				detail::primitive_type_helper<underlying_type>::read_from(stream);
+				detail::primitive_type_helper<underlying_type>::read_from(stream, is_file);
 			auto underlying_value = read_result.get<underlying_type>();
 			return Value::make_value<EnumT>(
 				static_cast<EnumT>(underlying_value)

include/ki/pclass/PrimitiveType.h

@@ -8,50 +8,60 @@ namespace pclass
 	namespace detail
 	{
 		/**
-		 * Provides implementations to PrimitiveType<ValueT>::write_to,
+		 * Provides implementations to PrimitiveType<ValueT>::is_byte_based,
-		 * and PrimitiveType<ValueT>::read_from.
+		 * PrimitiveType<ValueT>::write_to, and PrimitiveType<ValueT>::read_from.
 		 */
 		template <typename ValueT, typename Enable = void>
 		struct primitive_type_helper
 		{
-			static void write_to(BitStream &stream, const ValueT &value)
+			static bool is_byte_based()
 			{
 				// Provide a compiler error if this is not specialized
 				static_assert(
 					sizeof(ValueT) == 0,
-					"Missing specialization of primitive_type_writer::write_to"
+					"Missing specialization of primitive_type_helper::is_byte_based"
 				);
 			}
 
-			static Value read_from(BitStream &stream)
+			static void write_to(BitStream &stream, const bool is_file, const ValueT &value)
 			{
 				// Provide a compiler error if this is not specialized
 				static_assert(
 					sizeof(ValueT) == 0,
-					"Missing specialization of PrimitiveTypeReader::read_from"
+					"Missing specialization of primitive_type_helper::write_to"
 				);
+			}
 
-				// This should be impossible to reach.
+			static Value read_from(BitStream &stream, const bool is_file)
-				throw runtime_error("Missing specialization of PrimitiveTypeReader::read_from");
+			{
+				// Provide a compiler error if this is not specialized
+				static_assert(
+					sizeof(ValueT) == 0,
+					"Missing specialization of primitive_type_helper::read_from"
+				);
 			}
 		};
 
 		/**
 		 * Specialization of primitive_type_helper for integer types.
-		 * This includes instantiations of ki::BitInteger<>.
 		 */
 		template <typename ValueT>
 		struct primitive_type_helper<
 			ValueT,
-			typename std::enable_if<is_integral<ValueT>::value>::type
+			typename std::enable_if<std::is_integral<ValueT>::value>::type
 		>
 		{
-			static void write_to(BitStream &stream, const ValueT &value)
+			static bool is_byte_based()
+			{
+				return true;
+			}
+
+			static void write_to(BitStream &stream, const bool is_file, const ValueT &value)
 			{
 				stream.write<ValueT>(value);
 			}
 
-			static Value read_from(BitStream &stream)
+			static Value read_from(BitStream &stream, const bool is_file)
 			{
 				return Value::make_value<ValueT>(
 					stream.read<ValueT>()
@@ -60,8 +70,63 @@ namespace pclass
 		};
 
 		/**
-		 * Specialization of primitive_type_helper for floating point
+		* Specialization of primitive_type_helper for ki::BitInteger<> types.
-		 * types.
+		*/
+		template <uint8_t N, bool Unsigned>
+		struct primitive_type_helper<ki::BitInteger<N, Unsigned>>
+		{
+		private:
+			using type = ki::BitInteger<N, Unsigned>;
+
+		public:
+			static bool is_byte_based()
+			{
+				return false;
+			}
+
+			static void write_to(BitStream &stream, const bool is_file, const type &value)
+			{
+				stream.write<type>(value);
+			}
+
+			static Value read_from(BitStream &stream, const bool is_file)
+			{
+				return Value::make_value<type>(
+					stream.read<type>()
+				);
+			}
+		};
+
+		/**
+		* Specialization of primitive_type_helper for boolean types.
+		*/
+		template <>
+		struct primitive_type_helper<bool>
+		{
+		private:
+			using underlying_type = ki::BitInteger<1, true>;
+
+		public:
+			static bool is_byte_based()
+			{
+				return false;
+			}
+
+			static void write_to(BitStream &stream, const bool is_file, const bool &value)
+			{
+				stream.write<underlying_type>(value);
+			}
+
+			static Value read_from(BitStream &stream, const bool is_file)
+			{
+				return Value::make_value<bool>(
+					stream.read<underlying_type>() != 0
+				);
+			}
+		};
+		
+		/**
+		 * Specialization of primitive_type_helper for floating point types.
 		 */
 		template <typename ValueT>
 		struct primitive_type_helper<
@@ -69,27 +134,33 @@ namespace pclass
 			typename std::enable_if<std::is_floating_point<ValueT>::value>::type
 		>
 		{
-			static void write_to(BitStream &stream, const ValueT &value)
+		private:
+			/**
+			* An unsigned integer type with the same size as the floating point type
+			* ValueT.
+			*/
+			using uint_type = typename bits<bitsizeof<ValueT>::value>::uint_type;
+
+		public:
+			static bool is_byte_based()
+			{
+				return true;
+			}
+
+			static void write_to(BitStream &stream, const bool is_file, const ValueT &value)
 			{
 				// Reinterpret the reference as a reference to an integer
 				const uint_type &v = *(
 					reinterpret_cast<const uint_type *>(&value)
-					);
+				);
 				stream.write<uint_type>(v, bitsizeof<ValueT>::value);
 			}
 
-			static Value read_from(BitStream &stream)
+			static Value read_from(BitStream &stream, const bool is_file)
 			{
 				uint_type uint_value = stream.read<uint_type>(bitsizeof<ValueT>::value);
 				return Value::make_value<ValueT>(*reinterpret_cast<ValueT *>(&uint_value));
 			}
-
-		private:
-			/**
-			 * An unsigned integer type with the same size as the floating point type
-			 * ValueT.
-			 */
-			using uint_type = typename bits<bitsizeof<ValueT>::value>::uint_type;
 		};
 
 		/**
@@ -106,21 +177,47 @@ namespace pclass
 			using type = std::basic_string<_Elem, _Traits, _Alloc>;
 
 		public:
-			static void write_to(BitStream &stream, const type &value)
+			static bool is_byte_based()
 			{
-				// Write the length as an unsigned short
+				return true;
-				stream.write<uint16_t>(value.length());
+			}
+
+			static void write_to(BitStream &stream, const bool is_file, const type &value)
+			{
+				if (is_file)
+				{
+					// TODO: Determine how the size of the length prefix is chosen
+					// while in file mode
+					stream.write<uint8_t>(value.length() * 2);
+				}
+				else
+				{
+					// Write the length as an unsigned short
+					stream.write<uint16_t>(value.length());
+				}
 
 				// Write each character as _Elem
 				for (auto it = value.begin(); it != value.end(); ++it)
 					stream.write<_Elem>(*it);
 			}
 
-			static Value read_from(BitStream &stream)
+			static Value read_from(BitStream &stream, const bool is_file)
 			{
-				// Read the length and create a new string with the correct capacity
+				std::size_t length;
-				auto length = stream.read<uint16_t>();
+				if (is_file)
-				auto value = type(length, ' ');;
+				{
+					// TODO: Determine how the size of the length prefix is chosen
+					// while in file mode
+					length = stream.read<uint8_t>() / 2;
+				}
+				else
+				{
+					// Read the length as an unsigned short
+					length = stream.read<uint16_t>();
+				}
+
+				// Create a new string with the correct capacity
+				auto value = type(length, ' ');
 
 				// Read each character into the string
 				for (auto it = value.begin(); it != value.end(); ++it)
@@ -153,13 +250,18 @@ namespace pclass
 		}
 		~PrimitiveType() = default;
 
-		void write_to(BitStream &stream, Value &value) const override
+		bool is_byte_based() const override
+		{
+			return detail::primitive_type_helper<ValueT>::is_byte_based();
+		}
+
+		void write_to(BitStream &stream, const bool is_file, Value &value) const override
 		{
 			try
 			{
 				Value casted_value = value.as<ValueT>();
 				detail::primitive_type_helper<ValueT>::write_to(
-					stream,
+					stream, is_file,
 					casted_value.get<ValueT>()
 				);
 			}
@@ -171,11 +273,11 @@ namespace pclass
 			}
 		}
 
-		Value read_from(BitStream &stream) const override
+		Value read_from(BitStream &stream, const bool is_file) const override
 		{
 			try
 			{
-				return detail::primitive_type_helper<ValueT>::read_from(stream);
+				return detail::primitive_type_helper<ValueT>::read_from(stream, is_file);
 			}
 			catch (runtime_error &e)
 			{

include/ki/pclass/Property.h

@@ -101,14 +101,14 @@ namespace pclass
 		 * @param[in] stream The stream to write to.
 		 * @param[in] index The index of the element to retrieve the value from
 		 */
-		virtual void write_value_to(BitStream &stream, std::size_t index = 0) const;
+		virtual void write_value_to(BitStream &stream, const bool is_file, std::size_t index = 0) const;
 
 		/**
 		 * Read a value from a BitStream into the specified element of this property.
 		 * @param[in] stream The stream to read from.
 		 * @param[in] index The index of the element to read a value into.
 		 */
-		virtual void read_value_from(BitStream &stream, std::size_t index = 0);
+		virtual void read_value_from(BitStream &stream, const bool is_file, std::size_t index = 0);
 
 	private:
 		const PropertyClass *m_instance;

include/ki/pclass/Type.h

@@ -55,6 +55,11 @@ namespace pclass
 		hash_t get_hash() const;
 		Kind get_kind() const;
 
+		/**
+		* @returns Whether or not this type works in bytes, rather than bits.
+		*/
+		virtual bool is_byte_based() const;
+
 		/**
 		 * The TypeSystem used to define this Type instance.
 		 */
@@ -71,14 +76,14 @@ namespace pclass
 		 * @param[in] stream The stream to write to.
 		 * @param[in] value The value to write to the stream.
 		 */
-		virtual void write_to(BitStream &stream, Value &value) const;
+		virtual void write_to(BitStream &stream, const bool is_file, Value &value) const;
 
 		/**
 		 * Read a value of this type from a BitStream.
 		 * @param stream[in] The stream to read from.
 		 * @returns The value read from the stream.
 		 */
-		virtual Value read_from(BitStream &stream) const;
+		virtual Value read_from(BitStream &stream, const bool is_file) const;
 
 	protected:
 		Kind m_kind;

src/pclass/Enum.cpp

@@ -56,21 +56,42 @@ namespace pclass
 		m_value = value;
 	}
 
-	void Enum::set_value(const std::string& element_name)
+	void Enum::set_value(const std::string &element_name)
 	{
 		m_value = get_type().get_element(element_name).get_value();
 	}
 
-	void Enum::write_to(BitStream& stream) const
+	void Enum::write_to(BitStream& stream, const bool is_file) const
 	{
-		detail::primitive_type_helper<enum_value_t>::write_to(stream, m_value);
+		if (is_file)
+		{
+			// Write the element name
+			const auto &name = get_type().get_element(m_value).get_name();
+			detail::primitive_type_helper<std::string>::write_to(stream, is_file, name);
+		}
+		else
+		{
+			// Write the element value
+			detail::primitive_type_helper<enum_value_t>::write_to(stream, is_file, m_value);
+		}
 	}
 
-	void Enum::read_from(BitStream& stream)
+	void Enum::read_from(BitStream& stream, const bool is_file)
 	{
-		const auto value = detail::primitive_type_helper<enum_value_t>
+		if (is_file)
-			::read_from(stream).get<enum_value_t>();
+		{
-		set_value(value);
+			// Set the value using the element name
+			const auto name = detail::primitive_type_helper<std::string>
+				::read_from(stream, is_file).get<std::string>();
+			set_value(name);
+		}
+		else
+		{
+			// Set the value using the element value
+			const auto value = detail::primitive_type_helper<enum_value_t>
+				::read_from(stream, is_file).get<enum_value_t>();
+			set_value(value);
+		}
 	}
 
 	Enum::operator enum_value_t() const

src/pclass/EnumType.cpp

@@ -109,16 +109,16 @@ namespace pclass
 		return *this;
 	}
 
-	void EnumType::write_to(BitStream &stream, Value &value) const
+	void EnumType::write_to(BitStream &stream, const bool is_file, Value &value) const
 	{
 		// Get an Enum reference and use it to write to the stream
-		value.as<Enum>().get<Enum>().write_to(stream);
+		value.as<Enum>().get<Enum>().write_to(stream, is_file);
 	}
 
-	Value EnumType::read_from(BitStream &stream) const
+	Value EnumType::read_from(BitStream &stream, const bool is_file) const
 	{
 		auto value = Enum(*this);
-		value.read_from(stream);
+		value.read_from(stream, is_file);
 		return Value::make_value<Enum>(value);
 	}
 }

src/pclass/Property.cpp

@@ -81,19 +81,19 @@ namespace pclass
 		return 0;
 	}
 
-	void IProperty::write_value_to(BitStream& stream, const std::size_t index) const
+	void IProperty::write_value_to(BitStream &stream, const bool is_file, const std::size_t index) const
 	{
 		if (index < 0 || index >= get_element_count())
 			throw runtime_error("Index out of bounds.");
 		auto ref_value = get_value(index);
-		get_type().write_to(stream, ref_value);
+		get_type().write_to(stream, is_file, ref_value);
 	}
 
-	void IProperty::read_value_from(BitStream& stream, const std::size_t index)
+	void IProperty::read_value_from(BitStream &stream, const bool is_file, const std::size_t index)
 	{
 		if (index < 0 || index >= get_element_count())
 			throw runtime_error("Index out of bounds.");
-		set_value(get_type().read_from(stream), index);
+		set_value(get_type().read_from(stream, is_file), index);
 	}
 }
 }

src/pclass/Type.cpp

@@ -38,14 +38,19 @@ namespace pclass
 		return m_type_system;
 	}
 
-	void Type::write_to(BitStream &stream, Value &value) const
+	bool Type::is_byte_based() const
+	{
+		return true;
+	}
+
+	void Type::write_to(BitStream &stream, const bool is_file, Value &value) const
 	{
 		std::ostringstream oss;
 		oss << "Type '" << m_name << "' does not implement Type::write_to.";
 		throw runtime_error(oss.str());
 	}
 
-	Value Type::read_from(BitStream &stream) const
+	Value Type::read_from(BitStream &stream, const bool is_file) const
 	{
 		std::ostringstream oss;
 		oss << "Type '" << m_name << "' does not implement Type::read_from.";

src/protocol/net/DMLSession.cpp

@@ -70,7 +70,10 @@ namespace net
 			on_message(message);
 		else
 			on_invalid_message(InvalidDMLMessageErrorCode::INSUFFICIENT_ACCESS);
-		delete message;
+
+		// WARNING: Refactor, and utilize smart pointers to avoid memory leaks in DML messages.
+		// The following line breaks asynchronous code.
+		// delete message;
 	}
 }
 }

src/serialization/BinarySerializer.cpp

@@ -27,7 +27,8 @@ namespace serialization
 		const auto compression_header_pos = stream.tell();
 		if (FLAG_IS_SET(m_flags, flags::COMPRESSED))
 		{
-			stream.write<bool>(false);
+			if (m_is_file)
+				stream.write<bool>(false);
 			stream.write<uint32_t>(0);
 		}
 
@@ -102,7 +103,8 @@ namespace serialization
 			// Write the compression header
 			const auto use_compression = compressed.size() < size_bytes;
 			stream.seek(compression_header_pos);
-			stream.write<bool>(use_compression);
+			if (m_is_file)
+				stream.write<bool>(use_compression);
 			stream.write<uint32_t>(size_bytes);
 			
 			// Write the compressed data
@@ -157,14 +159,14 @@ namespace serialization
 			stream.write(size_bits);
 			stream.seek(end_pos);
 		}
-		
-		// Re-align the stream so that our position lies on a byte
-		// TODO: Look into how/when the serialization re-aligns as this may not be the right place
-		stream.seek(BitStream::stream_pos(stream.tell().as_bytes(), 0));
 	}
 
 	void BinarySerializer::save_property(const pclass::IProperty &prop, BitStream &stream) const
 	{
+		// Determine if we need to re-align the stream so that our position lies on a byte
+		if (prop.get_type().is_byte_based() || prop.is_dynamic() || m_is_file)
+			stream.seek(BitStream::stream_pos(stream.tell().as_bytes(), 0));
+
 		// Remember where we started writing the property data
 		const auto start_pos = stream.tell();
 
@@ -178,7 +180,19 @@ namespace serialization
 
 		// If the property is dynamic, write the element count
 		if (prop.is_dynamic())
-			stream.write<uint32_t>(prop.get_element_count());
+		{
+			if (m_is_file)
+			{
+				// TODO: Determine how the size of the element count is chosen
+				// while in file mode
+				stream.write<uint8_t>(prop.get_element_count() * 2);
+			}
+			else
+			{
+				// Write the element count as an unsigned int
+				stream.write<uint32_t>(prop.get_element_count());
+			}
+		}
 
 		for (auto i = 0; i < prop.get_element_count(); ++i)
 		{
@@ -189,7 +203,7 @@ namespace serialization
 				save_object(prop.get_object(i), stream);
 			}
 			else
-				prop.write_value_to(stream, i);
+				prop.write_value_to(stream, m_is_file, i);
 		}
 
 		// Finish writing the property header by writing the length
@@ -226,7 +240,9 @@ namespace serialization
 		if (FLAG_IS_SET(m_flags, flags::COMPRESSED))
 		{
 			// Read the compression header
-			const auto use_compression = segment_stream.read<bool>();
+			bool use_compression = true;
+			if (m_is_file)
+				use_compression = segment_stream.read<bool>();
 			const auto uncompressed_size = segment_stream.read<uint32_t>();
 
 			// Work out how much data is available after the compression header
@@ -305,14 +321,15 @@ namespace serialization
 				stream.tell(), object_size
 			);
 			auto object_stream = BitStream(*object_buffer);
-			stream.seek(stream.tell() + object_size, false);
 
 			// Instead of loading properties sequentially, the file format specifies
 			// the hash of a property before writing its value, so we just need to
-			// iterate for how ever many properties the object has declared.
+			// iterate over how ever many bits were specified as the object size.
-			for (std::size_t i = 0;
+			while (object_stream.tell().as_bits() < object_size)
-				i < properties.get_property_count(); i++)
 			{
+				// Re-align the object stream so that our position lies on a byte
+				object_stream.seek(BitStream::stream_pos(object_stream.tell().as_bytes(), 0));
+
 				// Read the property's size, and create a new BitBufferSegment to
 				// ensure that data is only read from inside this region.
 				const auto property_size =
@@ -321,14 +338,21 @@ namespace serialization
 					object_stream.tell(), property_size
 				);
 				auto property_stream = BitStream(*property_buffer);
-				object_stream.seek(object_stream.tell() + property_size, false);
 
 				// Get the property to load based on it's hash, and then load
 				// it's value.
 				const auto property_hash = property_stream.read<uint32_t>();
 				auto &prop = properties.get_property(property_hash);
 				load_property(prop, property_stream);
+
+				// Seek out the end of the property in the object stream
+				auto byte_pos = object_stream.tell().as_bytes() + property_stream.tell().as_bytes();
+				object_stream.seek(BitStream::stream_pos(byte_pos, 0), false);
 			}
+
+			// Seek out the end of the object in the stream
+			auto byte_pos = stream.tell().as_bytes() + object_stream.tell().as_bytes();
+			stream.seek(BitStream::stream_pos(byte_pos, 0), false);
 		}
 		else
 		{
@@ -341,17 +365,29 @@ namespace serialization
 		// All properties on this object have been set now, so call the
 		// created handler on the object
 		dest->on_created();
-
-		// Re-align the stream so that our position lies on a byte
-		stream.seek(BitStream::stream_pos(stream.tell().as_bytes(), 0), false);
 	}
 
 	void BinarySerializer::load_property(pclass::IProperty &prop, BitStream &stream) const
 	{
+		// Determine if we need to re-align the stream so that our position lies on a byte
+		if (prop.get_type().is_byte_based() || prop.is_dynamic())
+			stream.seek(BitStream::stream_pos(stream.tell().as_bytes(), 0));
+
 		// If the property is dynamic, we need to load the element count
 		if (prop.is_dynamic())
 		{
-			const auto element_count = stream.read<uint32_t>();
+			std::size_t element_count;
+			if (m_is_file)
+			{
+				// TODO: Determine how the size of the element count is chosen
+				// while in file mode
+				element_count = stream.read<uint8_t>() / 2;
+			}
+			else
+			{
+				// Load the element count as an unsigned int
+				element_count = stream.read<uint32_t>();
+			}
 			prop.set_element_count(element_count);
 		}
 
@@ -366,7 +402,7 @@ namespace serialization
 				prop.set_object(object, i);
 			}
 			else
-				prop.read_value_from(stream, i);
+				prop.read_value_from(stream, m_is_file, i);
 		}
 	}
 }

test/src/unit-serialization.cpp

@@ -54,24 +54,24 @@ struct Vector3D
 			   m_z == that.m_z;
 	}
 
-	void write_to(BitStream &stream) const
+	void write_to(BitStream &stream, const bool is_file) const
 	{
 		pclass::detail::primitive_type_helper<float>
-			::write_to(stream, m_x);
+			::write_to(stream, is_file, m_x);
 		pclass::detail::primitive_type_helper<float>
-			::write_to(stream, m_y);
+			::write_to(stream, is_file, m_y);
 		pclass::detail::primitive_type_helper<float>
-			::write_to(stream, m_z);
+			::write_to(stream, is_file, m_z);
 	}
 
-	void read_from(BitStream &stream)
+	void read_from(BitStream &stream, const bool is_file)
 	{
 		m_x = pclass::detail::primitive_type_helper<float>
-			::read_from(stream).get<float>();
+			::read_from(stream, is_file).get<float>();
 		m_y = pclass::detail::primitive_type_helper<float>
-			::read_from(stream).get<float>();
+			::read_from(stream, is_file).get<float>();
 		m_z = pclass::detail::primitive_type_helper<float>
-			::read_from(stream).get<float>();
+			::read_from(stream, is_file).get<float>();
 	}
 
 private:
@@ -93,15 +93,20 @@ namespace detail
 	template <>
 	struct primitive_type_helper<Vector3D>
 	{
-		static void write_to(BitStream &stream, const Vector3D &value)
+		static bool is_byte_based()
 		{
-			value.write_to(stream);
+			return true;
 		}
 
-		static Value read_from(BitStream &stream)
+		static void write_to(BitStream &stream, const bool is_file, const Vector3D &value)
+		{
+			value.write_to(stream, is_file);
+		}
+
+		static Value read_from(BitStream &stream, const bool is_file)
 		{
 			Vector3D value;
-			value.read_from(stream);
+			value.read_from(stream, is_file);
 			return Value::make_value<Vector3D>(value);
 		}
 	};