1 files changed, 81 insertions, 0 deletions
diff --git a/lib/persistence.cpp b/lib/persistence.cpp
new file mode 100644
index 0000000..5744cd7
--- /dev/null
+++ b/lib/persistence.cpp
@@ -0,0 +1,81 @@
+#include "persistence.h"
+#include <map>
+
+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>;
+	static NamedTypeFactories 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();
+	}
+
+	void
+	Selection::setValue(float &)
+	{
+		throw std::runtime_error("Unexpected float");
+	}
+
+	void
+	Selection::setValue(bool &)
+	{
+		throw std::runtime_error("Unexpected bool");
+	}
+
+	void
+	Selection::setValue(const 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");
+	}
+
+	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 &)
+	{
+	}
+}