//===- FileOffset.h - Offset in a file --------------------------*- C++ -*-===//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_EDIT_FILEOFFSET_H

#define LLVM_CLANG_EDIT_FILEOFFSET_H

#include "clang/Basic/SourceLocation.h"

#include <tuple>

namespace clang {

namespace edit {

class FileOffset {

  FileID FID;

  unsigned Offs = 0;

public:

  FileOffset() = default;

  FileOffset(FileID fid, unsigned offs) : FID(fid), Offs(offs) {}

  bool isInvalid() const { return FID.isInvalid(); }

  FileID getFID() const { return FID; }

  unsigned getOffset() const { return Offs; }

  FileOffset getWithOffset(unsigned offset) const {

    FileOffset NewOffs = *this;

    NewOffs.Offs += offset;

    return NewOffs;

  }

  friend bool operator==(FileOffset LHS, FileOffset RHS) {

    return LHS.FID == RHS.FID && 
LHS.Offs == RHS.Offs5.54k
;

  }

  friend bool operator!=(FileOffset LHS, FileOffset RHS) {

    return !(LHS == RHS);

  }

  friend bool operator<(FileOffset LHS, FileOffset RHS) {

    return std::tie(LHS.FID, LHS.Offs) < std::tie(RHS.FID, RHS.Offs);

  }

  friend bool operator>(FileOffset LHS, FileOffset RHS) {

    return RHS < LHS;

  }

  friend bool operator>=(FileOffset LHS, FileOffset RHS) {

    return !(LHS < RHS);

  }

  friend bool operator<=(FileOffset LHS, FileOffset RHS) {

    return !(RHS < LHS);

  }

};

} // namespace edit

} // namespace clang

#endif // LLVM_CLANG_EDIT_FILEOFFSET_H