Without compile time introspection, those multiple transformation will always run slowly in go, though. C++ solves that with expression templates, which compil

Without compile time introspection, those multiple transformation will always run slowly in go, though. C++ solves that with expression templates, which compiles something like ABC from the two step tmp = AB Result = tmp*C To the transformation in one traversal. D is also capable of those types of compile time expression evaluation, and is a nice language, but sadly doesn't have a huge following yet.