[![Ruby](https://github.com/gangelo/ProtectedConstructor/actions/workflows/ruby.yml/badge.svg)](https://github.com/gangelo/ProtectedConstructor/actions/workflows/ruby.yml) [![GitHub version](http://badge.fury.io/gh/gangelo%2FProtectedConstructor.svg?refresh=7)](http://badge.fury.io/gh/gangelo%2FProtectedConstructor.svg) [![Gem Version](https://badge.fury.io/rb/ProtectedConstructor.svg?refresh=7)](https://badge.fury.io/rb/ProtectedConstructor.svg) [![Documentation](http://img.shields.io/badge/docs-rdoc.info-blue.svg)](http://www.rubydoc.info/gems/ProtectedConstructor/) [![Report Issues](https://img.shields.io/badge/report-issues-red.svg)](https://github.com/gangelo/ProtectedConstructor/issues) [![License](http://img.shields.io/badge/license-MIT-yellowgreen.svg)](#license) # ProtectedConstructor Provides a module that may be included in a Ruby class, that protects the constructor; good for enforcing instantiation of classes using, for instance, a class factory. The code itself is not mine, I just wrapped it in a gem and provided the examples; sorry, I don't remember the origin of the code to give credit. ## Installation Add this line to your application's Gemfile: gem 'ProtectedConstructor' And then execute: $ bundle Or install it yourself as: $ gem install ProtectedConstructor ## Usage require 'protected_constructor' class Klass include ProtectedConstructor def initialize end end module KlassFactory class << self public def create Klass.send(:new) end end end # Constructor is protected. klass = Klass.new # NoMethodError # Example using factory... klass = KlassFactory::create # works klass.nil? # false klass.is_a?(Klass) # true # Example just using #send... klass = Klass.send(:new) # works klass.nil? # false klass.is_a?(Klass) # true ## Contributing 1. Fork it 2. Create your feature branch (`git checkout -b my-new-feature`) 3. Commit your changes (`git commit -am 'Add some feature'`) 4. Push to the branch (`git push origin my-new-feature`) 5. Create new Pull Request