namespaced mixins

example.rb

#Mixins as I sometimes want them. Proper Composition.
#It probably requires different approach on how we write mixins atm.
#@vasilakisfil
 
module NamespacedMixin
  module ClassMethods
    def namespace(name, as:)
      namespace = as
 
      namespaced_class = name.split('::').inject(Object) {|o,c| o.const_get c}
      cls = Class.new{
        include namespaced_class
      }.new
 
      define_method("#{namespace}") do
        cls
      end
    end
  end
 
  def self.included(base)
    base.extend(ClassMethods)
  end
end
 
module TestModule1
  def do_that
    puts 'Doing that'
  end
 
  def do_other
    puts 'Doing that'
  end
end
 
module TestModule2
  def do_that
    puts 'Do this and that'
  end
end
 
module TestModule
  module NestedModule
    def do_that
      puts 'Do everything'
    end
  end
end
 
class Example
  include NamespacedMixin
 
  namespace 'TestModule1', as: :simply
  namespace 'TestModule2', as: :namespaced
  namespace 'TestModule::NestedModule', as: :mixins
end
 
ex = Example.new
ex.simply.do_that
ex.mixins.do_that
ex.namespaced.do_that
 
##output##
#Doing that
#Do everything
#Do this and that