LazyStatic

It's a lazy static type checker, simple as this:

[1] pry(main)> LazyStatic.check(5 => Integer, 's' => String)
=> {5=>Integer, "s"=>String}
[2] pry(main)> LazyStatic.check(5 => Integer, 's' => Integer)
TypeError: Expected s (String) to be of type Integer
from /Users/lemur/dev/lazy_static/lib/lazy_static.rb:6:in `block in check'

...and that's all it'll ever need to be.

Add this line to your application's Gemfile:

gem 'lazy_static'

And then execute:

$ bundle

Or install it yourself as:

$ gem install lazy_static

1. Fork it ( https://github.com/baweaver/lazy_static/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