Inline RBS

This gem generate rbs code from ruby source code with signature annotation comment.

Install the gem and add to the application's Gemfile by executing:

$ bundle add irbs

If bundler is not being used to manage dependencies, install the gem by executing:

$ gem install irbs

Prepare ruby code with signature annotation comment

# example.rb

module App
  # @sig (Integer) -> String
  def some_method(arg)
    arg.to_s
  end

  private

  # @sig (String) -> Integer
  def some_private_method(arg)
    arg.to_i
  end
end

and run irbs example.rb -o example.rbs, then rbs code will be generated

# example.rbs

module ::App
  public def some_method: (Integer) -> String
  private def some_private_method: (String) -> Integer
end

See example task in Rakefile and exmaple/ for more examples.

This library uses itself for type checking. See typecheck task in Rakefile and isig/irbs.rbs

bundle install
rake setup

Bug reports and pull requests are welcome on GitHub at https://github.com/diaphragm/irbs.

The gem is available as open source under the terms of the MIT License.