From: Leif Gensert <lists@...>
Date: 2013-01-11T08:26:44+09:00
Subject: Refinements. Am I doing Something wrong?

Hello everyone,

I am currently playing around with Ruby 2.0. I wanted to look into
Refinements and here is what I came up with:

====
module RefinementTest
  refine Hash do
    def super_duper
      "Hello World"
    end
  end
end

class MyTestClass
  using RefinementTest

  def initialize
    puts {}.super_duper
  end
end

MyTestClass.new
====

This is basically how it's described everywhere.

However when I run this code, I'll get that error:

====
[~]$ ruby refinements.rb
refinements.rb:2: warning: Refinements are experimental, and the
behavior may change in future versions of Ruby!
refinements.rb:10:in `<class:MyTestClass>': undefined method `using' for
MyTestClass:Class (NoMethodError)
        from refinements.rb:9:in `<main>'
====

It only works when I move the 'using RefinementTest' one level up (in
the main namespace). But isn't that the same as monkeypatching the Hash
class in the first place?

Or am I doing something fundamentally wrong?

I used 2.0.0-rc1

-- 
Posted via http://www.ruby-forum.com/.