class Bytecode::Prototype {
public:

	Prototype(const Bytecode& bytecode);

	void operator()(std::vector<Prototype*>& unlinkedPrototypes);

	struct {
		uint8_t flags = 0;
		uint8_t parameters = 0;
		uint8_t framesize = 0;
		bool hasDebugInfo = false;
		uint32_t firstLine = 0;
		uint32_t lineCount = 0;
	} header;

	std::vector<Instruction> instructions;
	std::vector<uint16_t> upvalues;
	std::vector<Constant> constants;
	std::vector<NumberConstant> numberConstants;
	std::vector<uint32_t> lineMap;
	std::vector<std::string> upvalueNames;
	std::vector<VariableInfo> variableInfos;
	uint32_t prototypeSize = 0;

private:

	void read_header();
	void read_instructions();
	void read_upvalues();
	void read_constants(std::vector<Prototype*>& unlinkedPrototypes);
	void read_number_constants();
	void read_debug_info();
	uint8_t get_next_byte();
	uint32_t get_uleb128();
	uint32_t get_uleb128_33();
	std::string get_string();
	TableConstant get_table_constant();

	const Bytecode& bytecode;
};