Ruby Refinement Inheritance

refinement_inheritance.rb

module MyExt
  refine String do
    def foo
      "foo"
    end
  end
end

class Parent
  using MyExt

  def parent_foo
    "xyz".foo
  end
end

class Child < Parent

  def child_foo
    "xyz".foo
  end
end


puts Parent.new.parent_foo  # => "foo"
puts Child.new.child_foo    # => undefined method `foo' for "xyz":String (NoMethodError)