This article is about machinist, a stand-alone project which started out as part of the spire project and has been originally published in October 2014. The original description can be found on this blog. You should read that linked post first if you are not familiar with how Machinist works. Introduction Machinist Issue #2 asks: Is it correct, that this stuff is completely obsolete now due to value classes or are there still some use cases? An example of using value class for zero-cost impli...