Callable pattern in Ruby

README.md

Usage

repository = UsersRepository.new

Registration.call(repository, "[email protected]", "pass")

callable.rb

 module Callable                                                
   module ClassMethods                                          
     def call(*args)                                            
       new(*args).result                                        
     end                                                        
                                                                
     def receive(*arguments)                                    
       define_method(:initialize) do |*parameters|              
         parameters.zip(arguments).each do |parameter, argument|
           instance_variable_set("@#{argument}", parameter)     
         end                                                    
       end                                                      
     end                                                        
   end                                                          
                                                                
   def self.included(base)                                      
     base.extend(ClassMethods)                                  
   end                                                          
                                                                
   def result                                                   
     fail NotImplementedError                                   
   end                                                          
end

registration.rb

class Registration
  include Callable
  
  receive :repository, :email, :password
  
  def result
    @repository.insert(@email, @password)
  end
end