Differential D19054 Diff 57139 src/serialize.h

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src/serialize.h

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	enum {			enum {
	// primary actions			// primary actions
	SER_NETWORK = (1 << 0),			SER_NETWORK = (1 << 0),
	SER_DISK = (1 << 1),			SER_DISK = (1 << 1),
	SER_GETHASH = (1 << 2),			SER_GETHASH = (1 << 2),
	};			};

	//! Convert the reference base type to X, without changing constness or			/**
	//! reference type.			* Convert any argument to a reference to X, maintaining constness.
	template <typename X> X &ReadWriteAsHelper(X &x) {			*
				* This can be used in serialization code to invoke a base class's
				* serialization routines.
				*
				* Example use:
				* class Base { ... };
				* class Child : public Base {
				* int m_data;
				* public:
				* SERIALIZE_METHODS(Child, obj) {
				* READWRITE(AsBase<Base>(obj), obj.m_data);
				* }
				* };
				*
				* static_cast cannot easily be used here, as the type of Obj will be const
				* Child& during serialization and Child& during deserialization. AsBase will
				* convert to const Base& and Base& appropriately.
				*/
				template <class Out, class In> Out &AsBase(In &x) {
				static_assert(std::is_base_of_v<Out, In>);
	return x;			return x;
	}			}
	template <typename X> const X &ReadWriteAsHelper(const X &x) {			template <class Out, class In> const Out &AsBase(const In &x) {
				static_assert(std::is_base_of_v<Out, In>);
	return x;			return x;
	}			}

	#define READWRITE(...) (::SerReadWriteMany(s, ser_action, __VA_ARGS__))			#define READWRITE(...) (::SerReadWriteMany(s, ser_action, __VA_ARGS__))
	#define READWRITEAS(type, obj) \
	(::SerReadWriteMany(s, ser_action, ReadWriteAsHelper<type>(obj)))
	#define SER_READ(obj, code) \			#define SER_READ(obj, code) \
	::SerRead( \			::SerRead( \
	s, ser_action, obj, \			s, ser_action, obj, \
	[&](Stream &s, typename std::remove_const<Type>::type &obj) { code; })			[&](Stream &s, typename std::remove_const<Type>::type &obj) { code; })
	#define SER_WRITE(obj, code) \			#define SER_WRITE(obj, code) \
	::SerWrite(s, ser_action, obj, [&](Stream &s, const Type &obj) { code; })			::SerWrite(s, ser_action, obj, [&](Stream &s, const Type &obj) { code; })

	/**			/**
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