1 //===- CoverageMappingWriter.h - Code coverage mapping writer ---*- 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 // This file contains support for writing coverage mapping data for
11 // instrumentation based coverage.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_PROFILEDATA_COVERAGE_COVERAGEMAPPINGWRITER_H
16 #define LLVM_PROFILEDATA_COVERAGE_COVERAGEMAPPINGWRITER_H
17 
18 #include "llvm/ADT/ArrayRef.h"
19 #include "llvm/ADT/StringRef.h"
20 #include "llvm/ProfileData/Coverage/CoverageMapping.h"
21 
22 namespace llvm {
23 
24 class raw_ostream;
25 
26 namespace coverage {
27 
28 /// Writer of the filenames section for the instrumentation
29 /// based code coverage.
30 class CoverageFilenamesSectionWriter {
31   ArrayRef<StringRef> Filenames;
32 
33 public:
CoverageFilenamesSectionWriter(ArrayRef<StringRef> Filenames)34   CoverageFilenamesSectionWriter(ArrayRef<StringRef> Filenames)
35       : Filenames(Filenames) {}
36 
37   /// Write encoded filenames to the given output stream.
38   void write(raw_ostream &OS);
39 };
40 
41 /// Writer for instrumentation based coverage mapping data.
42 class CoverageMappingWriter {
43   ArrayRef<unsigned> VirtualFileMapping;
44   ArrayRef<CounterExpression> Expressions;
45   MutableArrayRef<CounterMappingRegion> MappingRegions;
46 
47 public:
CoverageMappingWriter(ArrayRef<unsigned> VirtualFileMapping,ArrayRef<CounterExpression> Expressions,MutableArrayRef<CounterMappingRegion> MappingRegions)48   CoverageMappingWriter(ArrayRef<unsigned> VirtualFileMapping,
49                         ArrayRef<CounterExpression> Expressions,
50                         MutableArrayRef<CounterMappingRegion> MappingRegions)
51       : VirtualFileMapping(VirtualFileMapping), Expressions(Expressions),
52         MappingRegions(MappingRegions) {}
53 
54   /// Write encoded coverage mapping data to the given output stream.
55   void write(raw_ostream &OS);
56 };
57 
58 } // end namespace coverage
59 
60 } // end namespace llvm
61 
62 #endif // LLVM_PROFILEDATA_COVERAGE_COVERAGEMAPPINGWRITER_H
63