Ruby 2.0 Refinements in PracticeFirst Shugo announced them at RubyKaigi. Then Matz showed some improved syntax at RubyConf. But what are refinements all about, and what would they be used for? The first thing you need to understand is that the purpose of refinements in Ruby 2.0 is to make monkey-patching safer. Specifically, the goal is to make it possible to extend core classes, but to limit the effect of those extensions to a
