refactor by partial evaluation

Some time ago I read an article on proggit that made an analogy between compression and clean design. Basically if you see a lot of repetition then you factor out that structure and re-use it the same way a compression algorithm takes out common patterns and re-uses them to more compactly represent some blob of data. Sometimes though it is not the structure or the common patterns that make things hard to understand but instead it is too much generality and indirection. So how do you solve that problem? Continue reading