Rubysierung

Rubysierung is an implementation of Soft Typing in Ruby

Installation

Add this line to your application's Gemfile:

# ruby >= 2.1.0
# You can only use Rubysierung in a file context, see issue #5 and #7.
gem 'rubysierung'

And then execute:

$ bundle

Or install it yourself as:

$ gem install rubysierung

Usage

Have a look at all available Types

require 'rubysierung'

# define a custom types
class Strict::CustomTyp;end
class CustomTyp;end

class Strict::CustomTypX;end
class CustomTypX;end

class Example
  extend Rubysierung

  # if the type doesnt match Rubisierung will raise an Error messages

  # add custom Types
  # if you don't specify a Strict Type the standard type is being set for it
  # [TypeClass, StandardConversionMethodAsSymbol, StrictConversionMethodSymbol]
  @__add_type[CustomType, :to_s, :to_str]
  @__add_type[CustomTypeX, :to_s]

  # define foo to respond to :to_s and bar to :to_i
  def one(foo: String, bar: Integer)
    [foo, bar]
  end

  # you can still define empty/default parameters
  def self.two(foo:, bar: 'hallo World')
    [foo, bar]
  end

  # use a custom type
  def self.three(foo:, bar: CustomType)
    [foo, bar]
  end

  # define foo to respond to :to_str (strict type)
  def self.four(foo: Strict::String, bar: Integer)
    [foo, bar]
  end

  # with default parameters
  def self.five(foo: String||'I am a default :)', bar: Integer||42)
    [foo, bar]
  end
end

what it would look like normally

def one(foo:, bar:)
  sFoo = foo.to_s
  iBar = bar.to_i
  [sFoo, iBar]
end

Other Typing implementations

(contracts.ruby)https://github.com/egonSchiele/contracts.ruby[https://github.com/hannestyden/typo/blob/master/typo.rb]

Contributing

1. Fork it ( https://github.com/doodzik/rubysierung/fork )
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 a new Pull Request