Add basic factory support

1 files changed, 36 insertions, 0 deletions

diff --git a/libadhocutil/factory.h b/libadhocutil/factory.h
new file mode 100644
index 0000000..2493525
--- /dev/null
+++ b/libadhocutil/factory.h
@@ -0,0 +1,36 @@
+#ifndef ADHOCUTIL_FACTORY_H
+#define ADHOCUTIL_FACTORY_H
+
+#include "plugins.h"
+
+namespace AdHoc {
+	template <typename Base, typename ... Params>
+	class Factory {
+		public:
+			virtual ~Factory() = 0;
+
+			virtual Base * create(const Params & ...) const = 0;
+
+			template <typename Impl, typename _ = Factory<Base, Params...>>
+			class For : public _
+			{
+				public:
+					Base * create(const Params & ... p) const override
+					{
+						return new Impl(p...);
+					}
+			};
+
+			static const Factory * get(const std::string & name);
+			static Base * create(const std::string & name, const Params & ... p);
+	};
+}
+
+#define NAMEDFACTORY(Name, Implementation, BaseFactory) \
+	NAMEDPLUGIN(Name, BaseFactory::For<Implementation>, BaseFactory)
+
+#define FACTORY(Implementation, BaseFactory) \
+	NAMEDFACTORY(#Implementation, Implementation, BaseFactory)
+
+#endif
+