BytecodeSerializer.hpp

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#pragma once
#include "../CodeGen.hpp"
#include <cstdint>
#include <fstream>
#include <string>
#include <vector>
#include <filesystem>
 
namespace Phasor
{

class BytecodeSerializer
{
  public:
    std::vector<uint8_t> serialize(const Bytecode &bytecode);

    bool saveToFile(const Bytecode &bytecode, const std::filesystem::path &filename);
 
  private:
    std::vector<uint8_t> buffer;
 
    void writeUInt8(uint8_t value);           
    void writeUInt16(uint16_t value);         
    void writeUInt32(uint32_t value);         
    void writeInt32(int32_t value);           
    void writeInt64(int64_t value);           
    void writeDouble(double value);           
    void writeString(const std::string &str); 

    void writeHeader(uint32_t dataChecksum);                     
    void writeConstantPool(const std::vector<Value> &constants); 
    void writeVariableMapping(const std::map<std::string, int> &variables,
                              int nextVarIndex);                          
    void writeInstructions(const std::vector<Instruction> &instructions); 
    void writeFunctionEntries(
        const std::map<std::string, int> &functionEntries); 

    uint32_t calculateCRC32(const std::vector<uint8_t> &data);
};
} // namespace Phasor