source_traceable.h

#ifndef __TAN_SRC_AST_SOURCE_TRACEABLE_H__
#define __TAN_SRC_AST_SOURCE_TRACEABLE_H__
#include "base.h"
#include "source_file/tokenized_source_file.h"
 
namespace tanlang {
 
/**
 * \brief Different from SourceSpan, TokenSpan operates on the token level.
 */
class TokenSpan {
public:
  TokenSpan() = delete;
  TokenSpan(uint32_t start, uint32_t end);
 
  uint32_t _start = 0;
  uint32_t _end = 0;
};
 
/**
 * \brief Represents the nodes that can be traced back to tokens in the source file.
 */
class SourceTraceable {
public:
  SourceTraceable() = delete;
  SourceTraceable(TokenizedSourceFile *src);
  [[nodiscard]] uint32_t start() const;
  [[nodiscard]] uint32_t end() const;
  void set_start(uint32_t val);
  void set_end(uint32_t val);
  TokenizedSourceFile *src() const;
 
private:
  TokenSpan _span;
  TokenizedSourceFile *_src;
};
 
} // namespace tanlang
 
#endif //__TAN_SRC_AST_SOURCE_TRACEABLE_H__