1// Protocol Buffers - Google's data interchange format
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30
31#ifndef GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_LOCATION_TRACKER_H__
32#define GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_LOCATION_TRACKER_H__
33
34#include <string>
35
36#include <google/protobuf/stubs/common.h>
37#include <google/protobuf/util/internal/location_tracker.h>
38
39namespace google {
40namespace protobuf {
41namespace util {
42namespace converter {
43
44// An empty concrete implementation of LocationTrackerInterface.
45class ObjectLocationTracker : public LocationTrackerInterface {
46 public:
47  // Creates an empty location tracker.
48  ObjectLocationTracker() {}
49
50  virtual ~ObjectLocationTracker() {}
51
52  // Returns empty because nothing is tracked.
53  virtual string ToString() const { return ""; }
54
55 private:
56  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ObjectLocationTracker);
57};
58
59}  // namespace converter
60}  // namespace util
61}  // namespace protobuf
62
63}  // namespace google
64#endif  // GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_LOCATION_TRACKER_H__
65