generic-library/cereal
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NVPs more or less working

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This commit is contained in:
Shane Grant
2013-06-12 14:52:18 -07:00
parent 71cd5c3cb5
commit 679caf17ba
2 changed files with 45 additions and 3 deletions
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37
cereal.hpp
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@@ -6,6 +6,30 @@
namespace cereal
{
namespace detail
{
struct NameValuePairCore {};
}
//! For holding name value pairs
template <class T>
struct NameValuePair : detail::NameValuePairCore
{
NameValuePair( std::string const & n, T const & v ) : name(n), value(v) {}
std::string name;
T value;
};
//! Creates a name value pair
template <class T> inline
NameValuePair<T> make_nvp( std::string const & name, T const & value )
{
return {name, value};
}
//! Creates a name value pair for the variable T, using the same name
#define CEREAL_NVP(T) make_nvp("T", T);
class BinaryOutputArchive
{
@@ -18,7 +42,7 @@ namespace cereal
template <class T>
typename std::enable_if<traits::is_serializable<T, BinaryOutputArchive>() && traits::has_member_serialize<T, BinaryOutputArchive>(),
BinaryOutputArchive &>::type
operator & (T & t)
operator & (T && t)
{
std::cout << "Member serialize" << std::endl;
@@ -30,7 +54,7 @@ namespace cereal
template <class T>
typename std::enable_if<traits::is_serializable<T, BinaryOutputArchive>() && traits::has_non_member_serialize<T, BinaryOutputArchive>(),
BinaryOutputArchive &>::type
operator & (T & t)
operator & (T && t)
{
std::cout << "Non member serialize" << std::endl;
@@ -95,9 +119,16 @@ namespace cereal
typename std::enable_if<std::is_arithmetic<T>::value, void>::type
serialize(BinaryOutputArchive & ar, T & t)
{
//ar.itsStream << t;
ar.save_binary(std::addressof(t), sizeof(t));
std::cout << "Serializing POD size: " << sizeof(T) << " [" << t << "]" << std::endl;
}
//! Serialization for NVP types to binary
template<class T>
typename std::enable_if<std::is_base_of<cereal::detail::NameValuePairCore, T>::value, void>::type
serialize(BinaryOutputArchive & ar, T & t)
{
std::cout << "Serializing NVP: " << t.name << " " << t.value << std::endl;
ar & t.value;
}
}

11
test.cpp
View File

@@ -82,5 +82,16 @@ int main()
archive & t3;
archive & t4;
int x = 5;
auto nvp = cereal::make_nvp("hello!", x);
//auto nvp2 = CEREAL_NVP(x);
std::cout << std::is_base_of<cereal::detail::NameValuePairCore, decltype(nvp)>::value << std::endl;
std::cout << cereal::traits::has_non_member_serialize<decltype(nvp), cereal::BinaryOutputArchive>() << std::endl;
std::cout << cereal::traits::is_serializable<decltype(nvp), cereal::BinaryOutputArchive>() << std::endl;
archive & nvp;
archive & cereal::make_nvp("another", x);
return 0;
}