Refactoring as Algebra: Small Steps to Clarity

The Problem with Clever Code The Gilded Rose kata is a beloved refactoring exercise. You inherit a small inventory system for a fantasy shop. The code works, but the logic is impenetrable. Your task is to add a new feature, and the code is fighting you. As you refactor, you might get to a fragment that looks like this: quality = std::min(quality + 1, 50); sellIn = sellIn - 1; if (sellIn <...