KoneLinx / ConstexprSerializer

Constant expression serializer and static testing

Compile time serializer & tests

Fully constexpr and verified by static assrts. Serializer requires at least C++20 to compile, The Serializer helper compatible with iostreams can be compiled using C++17.

static_assert(
	[]
	{
		// Layout
		using MyLayout = Layout<std::wstring, std::vector<short>>;
		// Buffer
		Serializer io(128);
		// Write
		MyLayout::Write(io, L"ind", { 7, 13, 3, 31 });
		// Read
		auto const [key, val] = MyLayout::Read(io);
		// Correct?
		return key == L"ind" 
			&& std::ranges::equal(val, std::initializer_list{ 7, 13, 3, 31 });
	} 
	(),
	"Serializing a vector and wstring"
);

Testing

The entire serializer is has been writen in a constexpr correct way. Therefore we can run tests in a static assert. If the code would ever throw or give thre wrong result. The code will fail to compile.

This also means that the code is free of any Undefined Behaviour.

Tests ares located in the .cpp files

Serializer

A buffer allowing you to write to and read from.

Serializer::read Read objects from the buffer

Serializer::write Write objects to the buffer

Serializer::clear Clears the buffer

To construct a fixed size buffer on the stack

Serializer<1024>{}

To construct with size not known on the heap

Serializer(1024)

Initialiser list initialisation will not work

A serializer object can be moved but not copied. The fixed size Serializer is trivially copyable if you do decide to deep copy it.