better example

include/sp/protocol/MessageInterfaceBuilder.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <sp/protocol/MessageInterfaces.h>
+
+namespace sp {
+namespace option {
+
+class EmptyBase {};
+
+template <typename... TOptions>
+struct MessageInterfaceBuilder {
+	// Parse the options
+	using ParsedOptions = MessageInterfaceParsedOptions<TOptions...>;
+
+	// Add ID retrieval functionality if ID type was provided
+	using Base1 = typename MessageInterfaceProcessMsgId<EmptyBase, ParsedOptions, ParsedOptions::HasMsgIdType>::Type;
+
+	// Add ReadData() and WriteData(), that use the right endian
+	using Base2 = typename MessageInterfaceProcessEndian<Base1, ParsedOptions::HasLittleEndian>::Type;
+
+	// Add read functionality if Read type was provided
+	using Base3 = typename MessageInterfaceProcessRead<Base2, ParsedOptions::HasReadOperations>::Type;
+
+	// Add write functionality if Write type was provided
+	using Base4 = typename MessageInterfaceProcessWrite<Base3, ParsedOptions::HasWriteOperations>::Type;
+
+	// add dispatch functionality if Handler type was provided
+	using Base5 = typename MessageInterfaceProcessHandler<Base4, ParsedOptions, ParsedOptions::HasHandler>::Type;
+
+	// add valid functionality if Valid tpe was provided
+	using Base6 = typename MessageInterfaceProcessValid<Base5, ParsedOptions::HasValid>::Type;
+
+	// The last Base6 must be taken as final type.
+	using Type = Base6;
+};
+
+}  // namespace option
+}  // namespace sp