Class DummyStatsCollector

pose_graph/include/utils/Statistics.h:121–128

A class that has the statistics interface but does nothing. Swapping this in in place of the Statistics class (say with a typedef) eliminates the function calls.

// in place of the Statistics class (say with a typedef) eliminates the function
// calls.
class DummyStatsCollector {
 public:
  explicit DummyStatsCollector(size_t /*handle*/) {}
  explicit DummyStatsCollector(std::string const& /*tag*/) {}
  void AddSample(double /*sample*/) const {}
  void IncrementOne() const {}
  size_t GetHandle() const { return 0u; }
};

class StatsCollectorImpl {
 public: