output.sh

>jruby tmp/script.rb
=> Greetings & Salutaitons!

>pry
[1] pry(main)> require "/tmp/script.rb"
=> true
[2] pry(main)> Desperado.new
Greetings & Salutaitons!
=> #<Desperado:0x1aeff8ca @wingman=#<Wingman:0xf10d055>>

>jrubyc script.rb

>pry
[1] pry(main)> require "/tmp/script.class"
=> true
[2] pry(main)> Desperado.new
ArgumentError: unknown keyword:
from /Users/usr/.rvm/gems/jruby-9.1.9.0/gems/dry-auto_inject-0.4.2/lib/dry/auto_inject/strategies/kwargs.rb:22:in `initialize'

script.rb

require "dry-container"
require "dry-auto_inject"

class Wingman
  def greet
    puts "Greetings & Salutaitons!"
  end
end

class SomeContainer
  extend Dry::Container::Mixin
end

SomeContainer.register(:wingman, Wingman.new)

Inject = Dry::AutoInject(SomeContainer)

class Desperado
  include Inject[:wingman]

  def initialize(*, **, &b)
    super

    prod_wingman
  end

  def prod_wingman
    wingman.greet
  end
end