oop/module_function_parens.rb

tests/_examples/oop/module_function_parens.rb in the metorex repository.

module Helpers
  def named_form
    :named
  end

  def other
    :other
  end

  module_function(:named_form)

  module_function

  def toggled
    :toggled
  end

  public

  def after_public
    :after_public
  end
end

puts(Helpers.named_form.inspect)
puts(Helpers.toggled.inspect)
puts(Helpers.respond_to?(:other).inspect)
puts(Helpers.respond_to?(:after_public).inspect)
puts(Helpers.private_instance_methods(false).sort.inspect)
puts(Helpers.public_methods.include?(:named_form).inspect)

class Consumer
  include(Helpers)

  def call_it
    named_form
  end
end

puts(Consumer.new.call_it.inspect)
begin
  Consumer.new.named_form
rescue NoMethodError
  puts "NoMethodError"
end

module Base
  def label
    "base"
  end
end

Layered = Module.new do
  extend Base
  module_function

  def label
    ["layered", super]
  end
end

puts(Layered.label.inspect)
puts(Module.private_instance_methods.include?(:module_function).inspect)

Output:

:named
:toggled
false
false
[:named_form, :toggled]
true
:named
NoMethodError
["layered", "base"]
true