initial matador ng commit

include/matador/object/basic_object_info.hpp

@@ -0,0 +1,40 @@
+#ifndef BASIC_PROTOTYPE_INFO_HPP
+#define BASIC_PROTOTYPE_INFO_HPP
+
+#include <typeindex>
+
+namespace matador::object {
+
+class schema_node;
+
+class basic_object_info {
+public:
+  virtual ~basic_object_info() = default;
+
+  [[nodiscard]] std::type_index type_index() const;
+
+protected:
+  basic_object_info(schema_node &node, std::type_index type_index);
+
+protected:
+  schema_node &node_;        /**< prototype node of the represented object type */
+  std::type_index type_index_; /**< type index of the represented object type */
+};
+
+template<typename Type>
+class object_info final : public basic_object_info {
+public:
+  explicit object_info(schema_node &node)
+  : basic_object_info(node, typeid(Type)) {}
+
+};
+
+namespace detail {
+struct null_type {};
+}
+
+using null_info = object_info<detail::null_type>;
+
+}
+
+#endif //BASIC_PROTOTYPE_INFO_HPP