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      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 /// \brief Writer of the filenames section for the instrumentation
     29 /// based code coverage.
     30 class CoverageFilenamesSectionWriter {
     31   ArrayRef<StringRef> Filenames;
     32 
     33 public:
     34   CoverageFilenamesSectionWriter(ArrayRef<StringRef> Filenames)
     35       : Filenames(Filenames) {}
     36 
     37   /// \brief Write encoded filenames to the given output stream.
     38   void write(raw_ostream &OS);
     39 };
     40 
     41 /// \brief 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:
     48   CoverageMappingWriter(ArrayRef<unsigned> VirtualFileMapping,
     49                         ArrayRef<CounterExpression> Expressions,
     50                         MutableArrayRef<CounterMappingRegion> MappingRegions)
     51       : VirtualFileMapping(VirtualFileMapping), Expressions(Expressions),
     52         MappingRegions(MappingRegions) {}
     53 
     54   /// \brief 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