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weak_ptr seems to work for poly types

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This commit is contained in:
Shane Grant
2013-07-01 11:28:54 -07:00
parent 7f791d2af9
commit d06b100cb5
2 changed files with 11 additions and 8 deletions
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6
include/cereal/types/polymorphic.hpp
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@@ -31,7 +31,6 @@
#include <cereal/types/memory.hpp> #include <cereal/types/memory.hpp>
#include <cereal/details/polymorphic_impl.hpp> #include <cereal/details/polymorphic_impl.hpp>
#include <cereal/details/util.hpp> #include <cereal/details/util.hpp>
#include <iostream>
//! Registers a polymorphic type with cereal //! Registers a polymorphic type with cereal
/*! Polymorphic types must be registered before pointers /*! Polymorphic types must be registered before pointers
to them can be serialized. This also assumes that to them can be serialized. This also assumes that
@@ -99,9 +98,7 @@ namespace cereal
ar.registerPolymorphicName(nameid, name); ar.registerPolymorphicName(nameid, name);
} }
else else
{
name = ar.getPolymorphicName(nameid); name = ar.getPolymorphicName(nameid);
}
auto & bindingMap = detail::StaticObject<detail::InputBindingMap<Archive>>::getInstance().map; auto & bindingMap = detail::StaticObject<detail::InputBindingMap<Archive>>::getInstance().map;
@@ -152,8 +149,7 @@ namespace cereal
typename std::enable_if<std::is_polymorphic<T>::value, void>::type typename std::enable_if<std::is_polymorphic<T>::value, void>::type
save( Archive & ar, std::weak_ptr<T> const & ptr ) save( Archive & ar, std::weak_ptr<T> const & ptr )
{ {
std::cout << "poly weak" << std::endl; auto const sptr = ptr.lock();
auto sptr = ptr.lock();
ar( sptr ); ar( sptr );
} }

13
sandbox_rtti.cpp
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@@ -51,6 +51,8 @@ struct Base
struct MyType : public Base struct MyType : public Base
{ {
int x;
void foo() {} void foo() {}
template<class Archive> template<class Archive>
@@ -69,18 +71,24 @@ CEREAL_REGISTER_TYPE(MyType);
struct YourType : public Base struct YourType : public Base
{ {
YourType(int xx) : x(xx) {}
YourType() : x(-1) {}
int x;
void foo() {} void foo() {}
template<class Archive> template<class Archive>
void save(Archive & ar) const void save(Archive & ar) const
{ {
std::cout << "Saving YourType" << std::endl; std::cout << "Saving YourType" << std::endl;
ar( x );
} }
template<class Archive> template<class Archive>
void load(Archive & ar) void load(Archive & ar)
{ {
std::cout << "Loading YourType" << std::endl; std::cout << "Loading YourType" << std::endl;
ar( x );
} }
}; };
CEREAL_REGISTER_TYPE(YourType); CEREAL_REGISTER_TYPE(YourType);
@@ -94,7 +102,7 @@ int main()
cereal::BinaryOutputArchive oarchive(ostream); cereal::BinaryOutputArchive oarchive(ostream);
std::shared_ptr<Base> ptr1 = std::make_shared<MyType>(); std::shared_ptr<Base> ptr1 = std::make_shared<MyType>();
std::shared_ptr<Base> ptr2 = std::make_shared<YourType>(); std::shared_ptr<Base> ptr2 = std::make_shared<YourType>(33);
std::unique_ptr<Base> ptr3(new MyType); std::unique_ptr<Base> ptr3(new MyType);
std::weak_ptr<Base> ptr4 = ptr2; std::weak_ptr<Base> ptr4 = ptr2;
@@ -104,8 +112,6 @@ int main()
oarchive(ptr4); oarchive(ptr4);
} }
{ {
std::ifstream istream("rtti.txt"); std::ifstream istream("rtti.txt");
cereal::BinaryInputArchive iarchive(istream); cereal::BinaryInputArchive iarchive(istream);
@@ -121,4 +127,5 @@ int main()
iarchive(ptr4); iarchive(ptr4);
} }
//std::remove("rtti.txt");
} }