polymorphic_impl.hpp(3)

Classes

struct cereal::detail::PolymorphicCaster
Base type for polymorphic void casting. struct cereal::detail::PolymorphicCasters
Holds registered mappings between base and derived types for casting. struct cereal::detail::PolymorphicVirtualCaster< Base, Derived >
Strongly typed derivation of PolymorphicCaster. struct cereal::detail::RegisterPolymorphicCaster< Base, Derived >
Registers a polymorphic casting relation between a Base and Derived type. struct cereal::detail::binding_name< T >
Binds a compile time type with a user defined string. struct cereal::detail::OutputBindingMap< Archive >
A structure holding a map from type_indices to output serializer functions. struct cereal::detail::OutputBindingMap< Archive >::Serializers
Struct containing the serializer functions for all pointer types. struct cereal::detail::EmptyDeleter< T >
An empty noop deleter. struct cereal::detail::InputBindingMap< Archive >
A structure holding a map from type name strings to input serializer functions. struct cereal::detail::InputBindingMap< Archive >::Serializers
Struct containing the serializer functions for all pointer types. struct cereal::detail::InputBindingCreator< Archive, T >
Creates a binding (map entry) between an input archive type and a polymorphic type. struct cereal::detail::OutputBindingCreator< Archive, T >
Creates a binding (map entry) between an output archive type and a polymorphic type. class cereal::detail::OutputBindingCreator< Archive, T >::PolymorphicSharedPointerWrapper
Holds a properly typed shared_ptr to the polymorphic type. struct cereal::detail::adl_tag
struct cereal::detail::create_bindings< Archive, T >
Causes the static object bindings between an archive type and a serializable type T. struct cereal::detail::instantiate_function<>
When specialized, causes the compiler to instantiate its parameter. struct cereal::detail::polymorphic_serialization_support< Archive, T >
struct cereal::detail::bind_to_archives< T, Tag >
Begins the binding process of a type to all registered archives.

Macros

#define CEREAL_BIND_TO_ARCHIVES_UNUSED_FUNCTION static void unused() { (void)b; }
Helper macro to omit unused warning. #define CEREAL_BIND_TO_ARCHIVES(...)
Binds a polymorhic type to all registered archives. #define UNREGISTERED_POLYMORPHIC_CAST_EXCEPTION(LoadSave)
Error message used for unregistered polymorphic casts. #define CEREAL_EMPLACE_MAP(map, key, value)

Functions

template<class T, typename BindingTag> void cereal::detail::instantiate_polymorphic_binding (T *, int, BindingTag, adl_tag)
Base case overload for instantiation.

#define CEREAL_BIND_TO_ARCHIVES( ...)

Value:

namespace cereal {                                                   \
namespace detail {                                                   \
template<>                                                           \
struct init_binding<__VA_ARGS__> {                                   \


    static bind_to_archives<__VA_ARGS__> const& b;                   \


    CEREAL_BIND_TO_ARCHIVES_UNUSED_FUNCTION                          \
};                                                                   \
bind_to_archives<__VA_ARGS__> const & init_binding<__VA_ARGS__>::b = \


    ::cereal::detail::StaticObject<                                  \


        bind_to_archives<__VA_ARGS__>                                \


    >::getInstance().bind();                                         \
}}

Binds a polymorhic type to all registered archives. This binds a polymorphic type to all compatible registered archives that have been registered with CEREAL_REGISTER_ARCHIVE. This must be called after all archives are registered (usually after the archives themselves have been included).

#define CEREAL_EMPLACE_MAP( map, key, value)

Value:

map.emplace( key, value );

#define UNREGISTERED_POLYMORPHIC_CAST_EXCEPTION( LoadSave)

Value:

throw cereal::Exception("Trying to " #LoadSave " a registered polymorphic type with an unregistered polymorphic cast.\n"                                               \


                        "Could not find a path to a base class (" + util::demangle(baseInfo.name()) + ") for type: " + ::cereal::util::demangledName<Derived>() + "\n" \


                        "Make sure you either serialize the base class at some point via cereal::base_class or cereal::virtual_base_class.\n"                          \


                        "Alternatively, manually register the association with CEREAL_REGISTER_POLYMORPHIC_RELATION.");

Error message used for unregistered polymorphic casts.

template<class T, typename BindingTag> void cereal::detail::instantiate_polymorphic_binding (T * , int , BindingTag , adl_tag )

Base case overload for instantiation. This will end up always being the best overload due to the second parameter always being passed as an int. All other overloads will accept pointers to archive types and have lower precedence than int.

Since the compiler needs to check all possible overloads, the other overloads created via CEREAL_REGISTER_ARCHIVE, which will have lower precedence due to requring a conversion from int to (Archive*), will cause their return types to be instantiated through the static object mechanisms even though they are never called.

See the documentation for the other functions to try and understand this