1    :  // Copyright 2012 Google Inc. All Rights Reserved.
   2    :  //
   3    :  // Licensed under the Apache License, Version 2.0 (the "License");
   4    :  // you may not use this file except in compliance with the License.
   5    :  // You may obtain a copy of the License at
   6    :  //
   7    :  //     http://www.apache.org/licenses/LICENSE-2.0
   8    :  //
   9    :  // Unless required by applicable law or agreed to in writing, software
  10    :  // distributed under the License is distributed on an "AS IS" BASIS,
  11    :  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12    :  // See the License for the specific language governing permissions and
  13    :  // limitations under the License.
  14    :  //
  15    :  // Declares CoverageData, a utility class for accumulating coverage info with
  16    :  // a file and line centric indexing.
  17    :  
  18    :  #ifndef SYZYGY_GRINDER_COVERAGE_DATA_H_
  19    :  #define SYZYGY_GRINDER_COVERAGE_DATA_H_
  20    :  
  21    :  #include <map>
  22    :  
  23    :  #include "base/files/file_path.h"
  24    :  #include "syzygy/grinder/line_info.h"
  25    :  
  26    :  namespace grinder {
  27    :  
  28    :  // A simple class for accumulating data from LineInfo objects, representing
  29    :  // it with an alternative index.
  30    :  class CoverageData {
  31    :   public:
  32    :    struct SourceFileCoverageData;  // Forward declaration.
  33    :  
  34    :    // A map of line numbers to execution counts.
  35    :    typedef std::map<size_t, uint32> LineExecutionCountMap;
  36    :    // A map of file names to coverage information.
  37    :    typedef std::map<std::string, SourceFileCoverageData>
  38    :        SourceFileCoverageDataMap;
  39    :  
  40    :    // Adds the given line information to the internal representation.
  41    :    // @param line_info the LineInfo object whose coverage information is to be
  42    :    //     merged with our internal representation.
  43    :    // @returns true on success, false otherwise.
  44    :    bool Add(const LineInfo& line_info);
  45    :  
  46  E :    const SourceFileCoverageDataMap& source_file_coverage_data_map() const {
  47  E :      return source_file_coverage_data_map_;
  48  E :    }
  49    :  
  50    :   protected:
  51    :    // Store coverage results, per source file.
  52    :    SourceFileCoverageDataMap source_file_coverage_data_map_;
  53    :  };
  54    :  
  55    :  // Coverage information that is stored per file. Right now this consists only
  56    :  // of line execution data, but branch and function data could be added.
  57    :  struct CoverageData::SourceFileCoverageData {
  58    :    LineExecutionCountMap line_execution_count_map;
  59    :  };
  60    :  
  61    :  }  // namespace grinder
  62    :  
  63    :  #endif  // SYZYGY_GRINDER_COVERAGE_DATA_H_