Feature: cache method on any instance

[tamoyal]

I almost implemented this but found a quick way around it so wanted to get thoughts on the reasoning here.

Let's say you have an instance method you want to cache for all instances. For example, a class that computes a view:

class CrazyView
  def make_it(objects)
    ...
  end
  cache_method :make_it
end

You have this instance in a few places in the app because this view is reused. There's no way to cache it across instances without wrapping it in a class method.

class CrazyView
  class << self
    def make_it(objects)
      new.make_it(objects)
    end
    cache_method :make_it
  end

  def make_it(objects)
    ...
  end
end