#ifndef SOURCELOCATION_H_
#define SOURCELOCATION_H_

#include <clang-c/Index.h>
#include <string>

namespace clang {

class Offset {
public:
  Offset() {}
  Offset(unsigned line, unsigned index) : line(line), index(index) {}
  bool operator==(const clang::Offset &o) { return (line == o.line && index == o.index); }
  bool operator!=(const clang::Offset &o) { return !(*this == o); }
  unsigned line;
  unsigned index; //byte index in line (not char number)
};

class SourceLocation {
  friend class TranslationUnit;
  SourceLocation(CXTranslationUnit &tu, const std::string &filepath, unsigned offset);
  SourceLocation(CXTranslationUnit &tu, const std::string &filepath, unsigned line, unsigned column);
public:
  SourceLocation();
  SourceLocation(const CXSourceLocation& cx_location);
  SourceLocation(const CXIdxLoc& cx_location);

  std::string path;
  unsigned line = 0;
  unsigned column = 0;
  unsigned offset = 0;

  std::string ToString() const;
};

bool operator==(const SourceLocation& a, const SourceLocation& b);
bool operator!=(const SourceLocation& a, const SourceLocation& b);

}  // namespace clang

#endif  // SOURCELOCATION_H_