clang  6.0.0svn
FileOffset.h
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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 
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  return std::tie(LHS.FID, LHS.Offs) < std::tie(RHS.FID, RHS.Offs);
45  }
46  friend bool operator>(FileOffset LHS, FileOffset RHS) {
47  return RHS < LHS;
48  }
49  friend bool operator>=(FileOffset LHS, FileOffset RHS) {
50  return !(LHS < RHS);
51  }
52  friend bool operator<=(FileOffset LHS, FileOffset RHS) {
53  return !(RHS < LHS);
54  }
55 };
56 
57 }
58 
59 } // end namespace clang
60 
61 #endif
FileOffset(FileID fid, unsigned offs)
Definition: FileOffset.h:24
friend bool operator==(FileOffset LHS, FileOffset RHS)
Definition: FileOffset.h:37
friend bool operator>(FileOffset LHS, FileOffset RHS)
Definition: FileOffset.h:46
bool isInvalid() const
FileID getFID() const
Definition: FileOffset.h:28
friend bool operator<(FileOffset LHS, FileOffset RHS)
Definition: FileOffset.h:43
FileOffset getWithOffset(unsigned offset) const
Definition: FileOffset.h:31
friend bool operator!=(FileOffset LHS, FileOffset RHS)
Definition: FileOffset.h:40
An opaque identifier used by SourceManager which refers to a source file (MemoryBuffer) along with it...
Dataflow Directional Tag Classes.
unsigned getOffset() const
Definition: FileOffset.h:29
bool isInvalid() const
Definition: FileOffset.h:26
friend bool operator<=(FileOffset LHS, FileOffset RHS)
Definition: FileOffset.h:52
Defines the clang::SourceLocation class and associated facilities.
friend bool operator>=(FileOffset LHS, FileOffset RHS)
Definition: FileOffset.h:49