1 files changed, 49 insertions, 0 deletions
diff --git a/modules/codec/c++/schema_factory.hpp b/modules/codec/c++/schema_factory.hpp
new file mode 100644
index 0000000..f39c93c
--- /dev/null
+++ b/modules/codec/c++/schema_factory.hpp
@@ -0,0 +1,49 @@
+#pragma once
+
+#include "schema.hpp
+
+namespace saw {
+template<typename T>
+struct schema_factory {
+		using Schema = T;
+		static_assert(always_false<T>, "Not supported");
+};
+
+template<typename... T, string_literal... Keys>
+struct schema_factory<schema::Struct<schema::Member<T,Keys>...>> {
+		using Schema = schema::Struct<schema::Member<T,Keys>...>;
+
+		template<typename TA, string_literal KA>
+		constexpr schema_factory<schema::Struct<schema::Member<T,Keys>...,schema::Member<TA,KA>>> add() const noexcept {
+				return {};
+		}
+};
+
+template<typename... T, string_literal... Keys>
+struct schema_factory<schema::Union<schema::Member<T,Keys>...>> {
+		using Schema = schema::Union<schema::Member<T,Keys>...>;
+
+		template<typename TA, string_literal KA>
+		constexpr schema_factory<schema::Union<schema::Member<T,Keys>...,schema::Member<TA,KA>>> add() const noexcept {
+				return {};
+		}
+};
+
+template<typename... T>
+struct schema_factory<schema::Tuple<T...>> {
+		using Schema = schema::Tuple<T...>;
+
+		template<typename TA>
+		constexpr schema_factory<schema::Tuple<T...,TA>> add() const noexcept {
+				return {};
+		}
+};
+
+/**
+ * This creates the base schema. For example an empty struct,tuple,union or anything else.
+ */
+template<typename T>
+constexpr schema_factory<T> build_schema() noexcept {
+		return {};
+}
+}