object_location_tracker.h 2.5 KB

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  1. // Protocol Buffers - Google's data interchange format
  2. // Copyright 2008 Google Inc. All rights reserved.
  3. // https://developers.google.com/protocol-buffers/
  4. //
  5. // Redistribution and use in source and binary forms, with or without
  6. // modification, are permitted provided that the following conditions are
  7. // met:
  8. //
  9. // * Redistributions of source code must retain the above copyright
  10. // notice, this list of conditions and the following disclaimer.
  11. // * Redistributions in binary form must reproduce the above
  12. // copyright notice, this list of conditions and the following disclaimer
  13. // in the documentation and/or other materials provided with the
  14. // distribution.
  15. // * Neither the name of Google Inc. nor the names of its
  16. // contributors may be used to endorse or promote products derived from
  17. // this software without specific prior written permission.
  18. //
  19. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  25. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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  29. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30. #ifndef GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_LOCATION_TRACKER_H__
  31. #define GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_LOCATION_TRACKER_H__
  32. #include <string>
  33. #include <google/protobuf/stubs/common.h>
  34. #include <google/protobuf/util/internal/location_tracker.h>
  35. namespace google {
  36. namespace protobuf {
  37. namespace util {
  38. namespace converter {
  39. // An empty concrete implementation of LocationTrackerInterface.
  40. class ObjectLocationTracker : public LocationTrackerInterface {
  41. public:
  42. // Creates an empty location tracker.
  43. ObjectLocationTracker() {}
  44. virtual ~ObjectLocationTracker() {}
  45. // Returns empty because nothing is tracked.
  46. virtual string ToString() const { return ""; }
  47. private:
  48. GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ObjectLocationTracker);
  49. };
  50. } // namespace converter
  51. } // namespace util
  52. } // namespace protobuf
  53. } // namespace google
  54. #endif // GOOGLE_PROTOBUF_UTIL_CONVERTER_OBJECT_LOCATION_TRACKER_H__