Create a dynamic module

dynamic_module_gen.rb

# Requires Ruby 2.7.0

class Positional < Module
  # def self.[](position:)
  #   new(position: position)
  # end
  def self.[](...)
    new(...)
  end

  # def self.call(position:)
  #   new(position: position)
  # end
  def self.call(...)
    new(...)
  end

  def initialize(position:)
    raise RuntimeError, "provide block for Positional module" unless position && position.is_a?(Proc)

    define_method :position, &position
  end
end

class TestPositionalClass
  include Positional[position: -> { value * 1000 }]
  # include Positional.(position: -> { value * 1000 })
  # include Positional.new(position: -> { value * 1000 })

  def initialize(value:)
    @value = value
  end

  def calculate
    instance_eval &:position
  end

  private

  attr_reader :value
end

t = TestPositionalClass.new(value: 1)
puts t.calculate