writer_reader.hpp

#pragma once
 
#include <cstdint>
#include <cstring>
#include <string_view>
 
class Writer::CodeReader
{
 public:
  explicit CodeReader(const uint8_t* codes);
 
  [[nodiscard]] FormatOp ReadOp();
 
  template <typename T>
  [[nodiscard]] T Read()
  {
    T value{};
    std::memcpy(&value, pos_, sizeof(T));
    pos_ += sizeof(T);
    return value;
  }
 
  [[nodiscard]] FormatType ReadFormatType();
 
  [[nodiscard]] Spec ReadSpec();
 
  [[nodiscard]] std::string_view ReadInlineText();
 
  [[nodiscard]] std::string_view ReadTextRef();
 
 private:
  const uint8_t* pos_ = nullptr;
  const uint8_t* base_ = nullptr;
};
 
class Writer::ArgumentReader
{
 public:
  explicit ArgumentReader(const uint8_t* data);
 
  template <typename T>
  [[nodiscard]] T Read()
  {
    T value{};
    std::memcpy(&value, pos_, sizeof(T));
    pos_ += sizeof(T);
    return value;
  }
 
 private:
  const uint8_t* pos_ = nullptr;
};