| 1 | #include <cassert>
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| 2 | #include <fstream>
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| 3 |
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| 4 | #include <boost/serialization/serialization.hpp>
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| 5 | #include <boost/archive/xml_oarchive.hpp>
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| 6 | #include <boost/archive/xml_iarchive.hpp>
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| 7 | #include <boost/serialization/export.hpp>
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| 8 |
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| 9 | #include <boost/serialization/nvp.hpp>
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| 10 |
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| 11 | struct VBase;
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| 12 |
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| 13 | struct VBase {
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| 14 | virtual ~VBase() {}
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| 15 | friend class boost::serialization::access;
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| 16 | template<class Archive>
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| 17 | void serialize(Archive &/*ar*/, const unsigned int /*version*/) {
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| 18 | }
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| 19 | };
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| 20 |
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| 21 | BOOST_CLASS_TRACKING(VBase, boost::serialization::track_always)
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| 22 |
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| 23 |
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| 24 | struct Mid1 : virtual VBase {
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| 25 | friend class boost::serialization::access;
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| 26 | template<class Archive>
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| 27 | void serialize(Archive &ar, const unsigned int /*version*/) {
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| 28 | ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(VBase);
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| 29 | }
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| 30 | };
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| 31 |
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| 32 | struct Mid2 : virtual VBase {
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| 33 | friend class boost::serialization::access;
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| 34 | template<class Archive>
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| 35 | void serialize(Archive &ar, const unsigned int /*version*/) {
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| 36 | ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(VBase);
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| 37 | }
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| 38 | };
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| 39 |
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| 40 | struct Sub1 : Mid1, Mid2 {
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| 41 | friend class boost::serialization::access;
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| 42 | template<class Archive>
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| 43 | void serialize(Archive &ar, const unsigned int /*version*/) {
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| 44 | ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(Mid1);
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| 45 | ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(Mid2);
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| 46 | }
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| 47 | };
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| 48 |
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| 49 | struct Sub2 : Mid1, Mid2 {
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| 50 | friend class boost::serialization::access;
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| 51 | template<class Archive>
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| 52 | void serialize(Archive &ar, const unsigned int /*version*/) {
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| 53 | ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(Mid1);
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| 54 | ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(Mid2);
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| 55 | }
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| 56 | };
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| 57 |
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| 58 | struct Target : Sub2 {
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| 59 | friend class boost::serialization::access;
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| 60 | template<class Archive>
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| 61 | void serialize(Archive &ar, const unsigned int /*version*/) {
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| 62 | ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(Sub2);
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| 63 | }
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| 64 | };
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| 65 |
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| 66 | #if 0
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| 67 | // OK
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| 68 | BOOST_CLASS_EXPORT(Target)
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| 69 | BOOST_CLASS_EXPORT(Sub1)
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| 70 | #else
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| 71 | // NG
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| 72 | BOOST_CLASS_EXPORT(Sub1)
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| 73 | BOOST_CLASS_EXPORT(Target)
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| 74 | #endif
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| 75 |
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| 76 | int main()
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| 77 | {
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| 78 | // Serialize pTarget via VBase pointer.
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| 79 | {
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| 80 | std::ofstream ofs("outtarget.xml");
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| 81 | boost::archive::xml_oarchive oa(ofs);
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| 82 | assert(ofs);
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| 83 | Target* pTarget = new Target;
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| 84 | VBase * pVBase = pTarget;
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| 85 | oa << boost::serialization::make_nvp("pVBase", pVBase);
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| 86 | }
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| 87 | {
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| 88 | std::ifstream ifs("outtarget.xml");
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| 89 | assert(ifs);
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| 90 | boost::archive::xml_iarchive ia(ifs);
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| 91 | VBase * pVBase;
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| 92 | ia >> boost::serialization::make_nvp("pVBase", pVBase);
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| 93 | }
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| 94 | // Serialize pSub1 via VBase pointer.
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| 95 | {
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| 96 | std::ofstream ofs("outsub1.xml");
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| 97 | boost::archive::xml_oarchive oa(ofs);
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| 98 | assert(ofs);
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| 99 | Sub1* pSub1 = new Sub1;
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| 100 | VBase * pVBase = pSub1;
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| 101 | oa << boost::serialization::make_nvp("pVBase", pVBase);
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| 102 | }
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| 103 | {
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| 104 | std::ifstream ifs("outsub1.xml");
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| 105 | assert(ifs);
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| 106 | boost::archive::xml_iarchive ia(ifs);
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| 107 | VBase * pVBase;
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| 108 | ia >> boost::serialization::make_nvp("pVBase", pVBase);
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| 109 | }
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| 110 | }
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| 111 |
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