Created
April 26, 2012 06:53
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NRT Message Split Test
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| #include <iostream> | |
| #include <cxxabi.h> | |
| #include <boost/preprocessor/variadic/size.hpp> | |
| #include <boost/preprocessor/seq/for_each.hpp> | |
| #include <boost/preprocessor/variadic/to_seq.hpp> | |
| #include <boost/preprocessor/stringize.hpp> | |
| int indent = 1; | |
| template<class T> | |
| std::string demangledName() | |
| { | |
| int status; | |
| return std::string(abi::__cxa_demangle(typeid(T).name(), 0, 0, &status)); | |
| } | |
| struct SplittableType { }; | |
| template<class T> | |
| typename std::enable_if<std::is_base_of<SplittableType, T>::value, void>::type | |
| safe_enumerate() { T::enumerate(); } | |
| template<class T> | |
| typename std::enable_if<!std::is_base_of<SplittableType, T>::value, void>::type | |
| safe_enumerate() { } | |
| #define PRINT_IT(r, data, elem) \ | |
| std::cout << "Data Element "; \ | |
| std::cout << std::string(indent, '>') << " " << demangledName<decltype(elem)>() << " " << BOOST_PP_STRINGIZE(elem) << std::endl; \ | |
| if(std::is_base_of<SplittableType, decltype(elem)>::value) \ | |
| { \ | |
| indent+=1; \ | |
| safe_enumerate<decltype(elem)>(); \ | |
| indent-=1; \ | |
| } | |
| #define NRT_MESSAGE_DATA(...) \ | |
| static void enumerate() \ | |
| { \ | |
| BOOST_PP_SEQ_FOR_EACH(PRINT_IT, , BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__)) \ | |
| } | |
| struct Image {}; | |
| struct Matrix {}; | |
| struct CalibratedImageMessage : SplittableType | |
| { | |
| Image img; | |
| Matrix calibration; | |
| NRT_MESSAGE_DATA (img, calibration); | |
| }; | |
| struct StereoImageMessage : SplittableType | |
| { | |
| CalibratedImageMessage left; | |
| CalibratedImageMessage right; | |
| NRT_MESSAGE_DATA (left, right); | |
| }; | |
| struct StampedStereoImageMessage : SplittableType | |
| { | |
| StereoImageMessage stereo; | |
| double time; | |
| NRT_MESSAGE_DATA(stereo, time); | |
| }; | |
| int main() | |
| { | |
| StampedStereoImageMessage msg; | |
| std::cout << "Data Members for " << demangledName<decltype(msg)>() << std::endl; | |
| msg.enumerate(); | |
| return 0; | |
| } |
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