Curryer

The Delegator that curries!

There are often times where you have a module or class with many methods that share the same initial arguments and you'd like to just set them once. Curryer provides a method that allows you to generate an object that saves those first couple arguments as its own state, while exposing the target's methods (with a lower arity).

In functional programming, this is called "currying" or "partial evaluation". Ruby supports this on the Proc level with Proc#curry. Currying is an important concept and indeed serves as the theoretical basis for how computation works. In fact, object-oriented programming is actually nothing by the combination of structures/records/tuples and partially evaluated functions (see the second example in lib/curryer if you don't believe me).

Running tests

This library uses Ruby-Doctest. After running bundle install, you can run tests using bundle exec rubydoctest lib/*.rb.

Installation

Add this line to your application's Gemfile:

gem 'curryer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install curryer

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