arthurlewis

4 ms·

1. 1.▲
   by arthurlewis 1y ago

   Couldn’t get this idea out of my mind so I went back to the GoF text: > Decorator subclasses are free to add operations for specific functionality. For example, ScrollDecorator’s ScrollTo operation lets other objects scroll the interface
2. 2.▲
   by arthurlewis 1y ago

   Well, until you need different `colour_coded_availability` methods for different contexts. Helpers get a lot done, but there are absolutely use cases for a separate presentation layer.
3. 3.▲
   by arthurlewis 1y ago

   OH WAIT I SEE IT I'M THINKING OF THE FACADE PATTERN. Yes, the Ruby community does tend to conflate Decorator, Facade, and Presenter in very confusing ways.
4. 4.▲
   by arthurlewis 1y ago

   > It's not only that an actual Decorator should not introduce new methods Maybe I'm misreading you, but I've never seen a definition of the Decorator pattern that doesn't involve new methods on the Decorator. If that&