serialize_core.cc

Go to the documentation of this file.

#include "serialize_core.hh"
#include "serialize.hh"
#include "MSXException.hh"
#include "StringOp.hh"
#include "likely.hh"

namespace openmsx {

void enumError(const std::string& str)
{
        throw MSXException("Invalid enum value: " + str);
}

void pointerError(unsigned id)
{
        throw MSXException(StringOp::Builder() <<
                "Couldn't find pointer in archive with id " << id);
}


static void versionError(const char* className, unsigned latestVersion, unsigned version)
{
        // note: the result of type_info::name() is implementation defined
        //       but should be ok to show in an error message
        throw MSXException(StringOp::Builder() <<
                "your openMSX installation is too old (state contains type '" <<
                className << "' with version " << version <<
                ", while this openMSX installation only supports up to version " <<
                latestVersion << ").");
}

unsigned loadVersionHelper(MemInputArchive& /*ar*/, const char* /*className*/,
                           unsigned /*latestVersion*/)
{
        UNREACHABLE; return 0;
}

unsigned loadVersionHelper(XmlInputArchive& ar, const char* className,
                           unsigned latestVersion)
{
        assert(ar.canHaveOptionalAttributes());
        unsigned version;
        if (!ar.findAttribute("version", version)) {
                return 1;
        }
        if (unlikely(version > latestVersion)) {
                versionError(className, latestVersion, version);
        }
        return version;
}

} // namespace openmsx