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/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2000-2009 Kitware, Inc.

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/

#ifndef cmCTestCoverageHandler_h
#define cmCTestCoverageHandler_h


#include "cmCTestGenericHandler.h"
#include "cmListFileCache.h"

#include <cmsys/RegularExpression.hxx>

class cmGeneratedFileStream;
class cmCTestCoverageHandlerContainer
{
public:
  int Error;
  std::string SourceDir;
  std::string BinaryDir;
  typedef std::vector<int> SingleFileCoverageVector;
  typedef std::map<std::string, SingleFileCoverageVector> TotalCoverageMap;
  TotalCoverageMap TotalCoverage;
  std::ostream* OFS;
};
/** \class cmCTestCoverageHandler
 * \brief A class that handles coverage computaiton for ctest
 *
 */
class cmCTestCoverageHandler : public cmCTestGenericHandler
{
public:
  cmTypeMacro(cmCTestCoverageHandler, cmCTestGenericHandler);

  /*
   * The main entry point for this class
   */
  int ProcessHandler();

  cmCTestCoverageHandler();

  virtual void Initialize();

  /**
   * This method is called when reading CTest custom file
   */
  void PopulateCustomVectors(cmMakefile *mf);

  /** Report coverage only for sources with these labels.  */
  void SetLabelFilter(std::set<cmStdString> const& labels);

private:
  bool ShouldIDoCoverage(const char* file, const char* srcDir,
    const char* binDir);
  void CleanCoverageLogFiles(std::ostream& log);
  bool StartCoverageLogFile(cmGeneratedFileStream& ostr, int logFileCount);
  void EndCoverageLogFile(cmGeneratedFileStream& ostr, int logFileCount);

  //! Handle coverage using GCC's GCov
  int HandleGCovCoverage(cmCTestCoverageHandlerContainer* cont);
  void FindGCovFiles(std::vector<std::string>& files);

  //! Handle coverage using xdebug php coverage
  int HandlePHPCoverage(cmCTestCoverageHandlerContainer* cont);
  //! Handle coverage for mumps
  int HandleMumpsCoverage(cmCTestCoverageHandlerContainer* cont);

  //! Handle coverage using Bullseye
  int HandleBullseyeCoverage(cmCTestCoverageHandlerContainer* cont);
  int RunBullseyeSourceSummary(cmCTestCoverageHandlerContainer* cont);
  int RunBullseyeCoverageBranch(cmCTestCoverageHandlerContainer* cont,
                                std::set<cmStdString>& coveredFileNames,
                                std::vector<std::string>& files,
                                std::vector<std::string>& filesFullPath);

  int RunBullseyeCommand(
    cmCTestCoverageHandlerContainer* cont,
    const char* cmd,
    const char* arg,
    std::string& outputFile);
  bool ParseBullsEyeCovsrcLine(
    std::string const& inputLine,
    std::string& sourceFile,
    int& functionsCalled,
    int& totalFunctions,
    int& percentFunction,
    int& branchCovered,
    int& totalBranches,
    int& percentBranch);
  bool GetNextInt(std::string const& inputLine,
                  std::string::size_type& pos,
                  int& value);
  //! Handle Python coverage using Python's Trace.py
  int HandleTracePyCoverage(cmCTestCoverageHandlerContainer* cont);

  // Find the source file based on the source and build tree. This is used for
  // Trace.py mode, since that one does not tell us where the source file is.
  std::string FindFile(cmCTestCoverageHandlerContainer* cont,
    std::string fileName);

  std::set<std::string> FindUncoveredFiles(
    cmCTestCoverageHandlerContainer* cont);
  std::vector<cmStdString> CustomCoverageExclude;
  std::vector<cmsys::RegularExpression> CustomCoverageExcludeRegex;
  std::vector<cmStdString> ExtraCoverageGlobs;


  // Map from source file to label ids.
  class LabelSet: public std::set<int> {};
  typedef std::map<cmStdString, LabelSet> LabelMapType;
  LabelMapType SourceLabels;
  LabelMapType TargetDirs;

  // Map from label name to label id.
  typedef std::map<cmStdString, int> LabelIdMapType;
  LabelIdMapType LabelIdMap;
  std::vector<std::string> Labels;
  int GetLabelId(std::string const& label);

  // Label reading and writing methods.
  void LoadLabels();
  void LoadLabels(const char* dir);
  void WriteXMLLabels(std::ofstream& os, std::string const& source);

  // Label-based filtering.
  std::set<int> LabelFilter;
  bool IntersectsFilter(LabelSet const& labels);
  bool IsFilteredOut(std::string const& source);
};

#endif