serialize_meta.cc

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#include "serialize_meta.hh"
#include "serialize.hh"
#include "MSXException.hh"
#include "ranges.hh"
#include "stl.hh"
#include <cassert>
#include <iostream>
 
namespace openmsx {
 
template<typename Archive>
PolymorphicSaverRegistry<Archive>& PolymorphicSaverRegistry<Archive>::instance()
{
        static PolymorphicSaverRegistry oneInstance;
        return oneInstance;
}
 
template<typename Archive>
void PolymorphicSaverRegistry<Archive>::registerHelper(
        const std::type_info& type, SaveFunction saver)
{
        assert(!initialized);
        assert(!contains(saverMap, type, &Entry::index)); // not yet sorted
        saverMap.emplace_back(Entry{type, std::move(saver)});
}
 
template<typename Archive>
void PolymorphicSaverRegistry<Archive>::save(
        Archive& ar, const void* t, const std::type_info& typeInfo)
{
        auto& reg = PolymorphicSaverRegistry<Archive>::instance();
        if (!reg.initialized) [[unlikely]] {
                reg.initialized = true;
                ranges::sort(reg.saverMap, {}, &Entry::index);
        }
        auto s = binary_find(reg.saverMap, std::type_index(typeInfo), {}, &Entry::index);
        if (!s) {
                std::cerr << "Trying to save an unregistered polymorphic type: "
                          << typeInfo.name() << '\n';
                assert(false); return;
        }
        s->saver(ar, t);
}
template<typename Archive>
void PolymorphicSaverRegistry<Archive>::save(
        const char* tag, Archive& ar, const void* t, const std::type_info& typeInfo)
{
        ar.beginTag(tag);
        save(ar, t, typeInfo);
        ar.endTag(tag);
}
 
template class PolymorphicSaverRegistry<MemOutputArchive>;
template class PolymorphicSaverRegistry<XmlOutputArchive>;
 
 
template<typename Archive>
PolymorphicLoaderRegistry<Archive>& PolymorphicLoaderRegistry<Archive>::instance()
{
        static PolymorphicLoaderRegistry oneInstance;
        return oneInstance;
}
 
template<typename Archive>
void PolymorphicLoaderRegistry<Archive>::registerHelper(
        const char* name, LoadFunction loader)
{
        assert(!loaderMap.contains(name));
        loaderMap.emplace_noDuplicateCheck(name, std::move(loader));
}
 
template<typename Archive>
void* PolymorphicLoaderRegistry<Archive>::load(
        Archive& ar, unsigned id, const void* args)
{
        std::string type;
        ar.attribute("type", type);
        auto& reg = PolymorphicLoaderRegistry<Archive>::instance();
        auto v = lookup(reg.loaderMap, type);
        assert(v);
        return (*v)(ar, id, args);
}
 
template class PolymorphicLoaderRegistry<MemInputArchive>;
template class PolymorphicLoaderRegistry<XmlInputArchive>;
 
 
void polyInitError(const char* expected, const char* actual)
{
        throw MSXException("Expected type: ", expected, " but got: ", actual, '.');
}
 
template<typename Archive>
PolymorphicInitializerRegistry<Archive>& PolymorphicInitializerRegistry<Archive>::instance()
{
        static PolymorphicInitializerRegistry oneInstance;
        return oneInstance;
}
 
template<typename Archive>
void PolymorphicInitializerRegistry<Archive>::registerHelper(
        const char* name, InitFunction initializer)
{
        assert(!initializerMap.contains(name));
        initializerMap.emplace_noDuplicateCheck(name, std::move(initializer));
}
 
template<typename Archive>
void PolymorphicInitializerRegistry<Archive>::init(
        const char* tag, Archive& ar, void* t)
{
        ar.beginTag(tag);
        unsigned id;
        ar.attribute("id", id);
        assert(id);
        std::string type;
        ar.attribute("type", type);
 
        auto& reg = PolymorphicInitializerRegistry<Archive>::instance();
        auto v = lookup(reg.initializerMap, type);
        if (!v) {
                throw MSXException("Deserialize unknown polymorphic type: '", type, "'.");
        }
        (*v)(ar, t, id);
 
        ar.endTag(tag);
}
 
template class PolymorphicInitializerRegistry<MemInputArchive>;
template class PolymorphicInitializerRegistry<XmlInputArchive>;
 
} // namespace openmsx