1 //===----- FileOffset.h - Offset in a file ----------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_CLANG_EDIT_FILEOFFSET_H 11 #define LLVM_CLANG_EDIT_FILEOFFSET_H 12 13 #include "clang/Basic/SourceLocation.h" 14 15 namespace clang { 16 17 namespace edit { 18 19 class FileOffset { 20 FileID FID; 21 unsigned Offs; 22 public: 23 FileOffset() : Offs(0) { } 24 FileOffset(FileID fid, unsigned offs) : FID(fid), Offs(offs) { } 25 26 bool isInvalid() const { return FID.isInvalid(); } 27 28 FileID getFID() const { return FID; } 29 unsigned getOffset() const { return Offs; } 30 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 friend bool operator!=(FileOffset LHS, FileOffset RHS) { 41 return !(LHS == RHS); 42 } 43 friend bool operator<(FileOffset LHS, FileOffset RHS) { 44 if (LHS.FID != RHS.FID) 45 return LHS.FID < RHS.FID; 46 return LHS.Offs < RHS.Offs; 47 } 48 friend bool operator>(FileOffset LHS, FileOffset RHS) { 49 if (LHS.FID != RHS.FID) 50 return LHS.FID > RHS.FID; 51 return LHS.Offs > RHS.Offs; 52 } 53 friend bool operator>=(FileOffset LHS, FileOffset RHS) { 54 return LHS > RHS || LHS == RHS; 55 } 56 friend bool operator<=(FileOffset LHS, FileOffset RHS) { 57 return LHS < RHS || LHS == RHS; 58 } 59 }; 60 61 } 62 63 } // end namespace clang 64 65 #endif 66
