base_class.hpp
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/*
Copyright (c) 2014, Randolph Voorhies, Shane Grant
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#ifndef CEREAL_TYPES_BASE_CLASS_HPP_
#define CEREAL_TYPES_BASE_CLASS_HPP_
#include "cereal/details/traits.hpp"
#include "cereal/details/polymorphic_impl_fwd.hpp"
namespace cereal
{
namespace base_class_detail
{
template <class Base, class Derived, bool IsPolymorphic = std::is_polymorphic<Base>::value>
struct RegisterPolymorphicBaseClass
{
static void bind()
{ }
};
template <class Base, class Derived>
struct RegisterPolymorphicBaseClass<Base, Derived, true>
{
static void bind()
{ detail::RegisterPolymorphicCaster<Base, Derived>::bind(); }
};
}
template<class Base>
struct base_class : private traits::detail::BaseCastBase
{
template<class Derived>
base_class(Derived const * derived) :
base_ptr(const_cast<Base*>(static_cast<Base const *>(derived)))
{
static_assert( std::is_base_of<Base, Derived>::value, "Can only use base_class on a valid base class" );
base_class_detail::RegisterPolymorphicBaseClass<Base, Derived>::bind();
}
Base * base_ptr;
};
template<class Base>
struct virtual_base_class : private traits::detail::BaseCastBase
{
template<class Derived>
virtual_base_class(Derived const * derived) :
base_ptr(const_cast<Base*>(static_cast<Base const *>(derived)))
{
static_assert( std::is_base_of<Base, Derived>::value, "Can only use virtual_base_class on a valid base class" );
base_class_detail::RegisterPolymorphicBaseClass<Base, Derived>::bind();
}
Base * base_ptr;
};
} // namespace cereal
#endif // CEREAL_TYPES_BASE_CLASS_HPP_
cereal::traits::detail::BaseCastBase
Common base type for base class casting.
Definition: traits.hpp:1167
polymorphic_impl_fwd.hpp
Internal polymorphism support forward declarations.
cereal::base_class
Casts a derived class to its non-virtual base class in a way that safely supports abstract classes.
Definition: base_class.hpp:100
cereal::base_class_detail::RegisterPolymorphicBaseClass
Definition: base_class.hpp:44
cereal::detail::RegisterPolymorphicCaster::bind
static const PolymorphicCaster * bind()
Performs registration (binding) between Base and Derived.
Definition: polymorphic_impl.hpp:450
traits.hpp
Internal type trait support.
cereal::virtual_base_class
Casts a derived class to its virtual base class in a way that allows cereal to track inheritance.
Definition: base_class.hpp:188