https://gist.github.com/sinsoku/22c299c5f4db450ffc216344d6d7c1ca を見て書いた

enumerator_pipeline.rb

require 'binding_of_caller'

using Module.new {
  refine(Array) do
    def map(&block)
      caller = binding.of_caller(1)

      cleanroom = Class.new(BasicObject) do
        def respond_to?(*); true; end
        def respond_to_missing?(*); true; end
        define_method(:method_missing) do |name,*|
          caller.method(name)
        end
      end

      super(&cleanroom.new.instance_eval(&block))
    end
  end
}

def plus_one(x)
  x + 1
end

def double(x)
  x * 2
end

pp [1, 2, 3, 4].map { plus_one >> double }
#=> [4, 6, 8, 10]