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#include "persistence.h"
#include <map>
#include <sstream>
namespace Persistence {
using Factories
= std::pair<std::function<std::unique_ptr<Persistable>()>, std::function<std::shared_ptr<Persistable>()>>;
using NamedTypeFactories = std::map<std::string_view, Factories>;
inline static auto &
namedTypeFactories()
{
static NamedTypeFactories namedTypeFactories;
return namedTypeFactories;
}
void
Persistable::addFactory(const std::string_view t, std::function<std::unique_ptr<Persistable>()> fu,
std::function<std::shared_ptr<Persistable>()> fs)
{
namedTypeFactories().emplace(t, std::make_pair(std::move(fu), std::move(fs)));
}
std::unique_ptr<Persistable>
Persistable::callFactory(const std::string_view t)
{
return namedTypeFactories().at(t).first();
}
std::shared_ptr<Persistable>
Persistable::callSharedFactory(const std::string_view t)
{
return namedTypeFactories().at(t).second();
}
[[nodiscard]] std::string
Persistable::getId() const
{
std::stringstream ss;
ss << std::hex << this;
return ss.str();
}
void
Persistable::postLoad()
{
}
PersistenceSelect::PersistenceSelect(const std::string & n) : name {n} { }
PersistenceStore::NameActionSelection
PersistenceSelect::setName(const std::string_view key, SelectionFactory && factory)
{
if (key == name) {
return {NameAction::Push, factory()};
}
else {
return {NameAction::Ignore, nullptr};
}
}
void
PersistenceSelect::setType(const std::string_view, const Persistable *)
{
}
PersistenceWrite::PersistenceWrite(const Writer & o, bool sh) : out {o}, shared {sh} { }
PersistenceStore::NameActionSelection
PersistenceWrite::setName(const std::string_view key, SelectionFactory && factory)
{
auto s = factory();
if (s->needsWrite()) {
if (!first) {
out.nextValue();
}
else {
first = false;
}
out.pushKey(key);
return {NameAction::HandleAndContinue, std::move(s)};
}
return {NameAction::Ignore, nullptr};
}
void
PersistenceWrite::selHandler()
{
this->sel->write(out);
}
void
PersistenceWrite::setType(const std::string_view tn, const Persistable * p)
{
out.pushKey("p.typeid");
out.pushValue(tn);
first = false;
if (shared) {
out.nextValue();
out.pushKey("p.id");
out.pushValue(p->getId());
}
}
void
Selection::setValue(float)
{
throw std::runtime_error("Unexpected float");
}
void
Selection::setValue(bool)
{
throw std::runtime_error("Unexpected bool");
}
void
Selection::setValue(std::nullptr_t)
{
throw std::runtime_error("Unexpected null");
}
void
Selection::setValue(std::string &&)
{
throw std::runtime_error("Unexpected string");
}
void
Selection::beginArray(Stack &)
{
throw std::runtime_error("Unexpected array");
}
void
Selection::beginObject(Stack &)
{
throw std::runtime_error("Unexpected object");
}
/// LCOV_EXCL_START Don't think we can trigger these from something lexer will parse
void
Selection::beforeValue(Stack &)
{
throw std::runtime_error("Unexpected value");
}
SelectionPtr
Selection::select(const std::string &)
{
throw std::runtime_error("Unexpected select");
}
void
Selection::endObject(Stack &)
{
}
bool
Selection::needsWrite() const
{
return true;
}
void
Selection::write(const Writer &) const
{
throw std::logic_error("Default write op shouldn't ever get called");
}
/// LCOV_EXCL_STOP
ParseBase::ParseBase() : sharedObjectsInstance {std::make_shared<SharedObjects>()}
{
sharedObjects = sharedObjectsInstance;
}
}
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