1 //===- FileOffset.h - Offset in a file --------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_CLANG_EDIT_FILEOFFSET_H 10 #define LLVM_CLANG_EDIT_FILEOFFSET_H 11 12 #include "clang/Basic/SourceLocation.h" 13 #include <tuple> 14 15 namespace clang { 16 namespace edit { 17 18 class FileOffset { 19 FileID FID; 20 unsigned Offs = 0; 21 22 public: 23 FileOffset() = default; FileOffset(FileID fid,unsigned offs)24 FileOffset(FileID fid, unsigned offs) : FID(fid), Offs(offs) {} 25 isInvalid()26 bool isInvalid() const { return FID.isInvalid(); } 27 getFID()28 FileID getFID() const { return FID; } getOffset()29 unsigned getOffset() const { return Offs; } 30 getWithOffset(unsigned offset)31 FileOffset getWithOffset(unsigned offset) const { 32 FileOffset NewOffs = *this; 33 NewOffs.Offs += offset; 34 return NewOffs; 35 } 36 37 friend bool operator==(FileOffset LHS, FileOffset RHS) { 38 return LHS.FID == RHS.FID && LHS.Offs == RHS.Offs; 39 } 40 41 friend bool operator!=(FileOffset LHS, FileOffset RHS) { 42 return !(LHS == RHS); 43 } 44 45 friend bool operator<(FileOffset LHS, FileOffset RHS) { 46 return std::tie(LHS.FID, LHS.Offs) < std::tie(RHS.FID, RHS.Offs); 47 } 48 49 friend bool operator>(FileOffset LHS, FileOffset RHS) { 50 return RHS < LHS; 51 } 52 53 friend bool operator>=(FileOffset LHS, FileOffset RHS) { 54 return !(LHS < RHS); 55 } 56 57 friend bool operator<=(FileOffset LHS, FileOffset RHS) { 58 return !(RHS < LHS); 59 } 60 }; 61 62 } // namespace edit 63 } // namespace clang 64 65 #endif // LLVM_CLANG_EDIT_FILEOFFSET_H 66