multi-methods¶ ↑

Multi-Methods is a library for creating dynamically-dispatched methods in a ruby class. What does this mean? Well, I’m not the one to explain it, but I look at it as a nice way to extract if-statements from your code, since, as we all know, ‘if-statements are evil.’

This is also a small project to show Jon Kern some interesting aspects of Ruby programming.

Here’s a couple simple examples (you can look at the cucumber features, as well):

class PathMan

include MultiMethods

multi_method :route_me do
  router {|*args| args[0] == true ? :path_one : :path_two}
  implementation_for :path_one do |*args|
    "you called path one"
  end
  implementation_for :path_two do |*args|
    "you called path two"
  end
end

end

allows you to call

p = PathMan.new p.route_me true #=> “you called path one” p.route_me false #=> “you called path two”

Note on Patches/Pull Requests¶ ↑

• Fork the project.

• Make your feature addition or bug fix.

• Add tests for it. If you don’t have tests, it will not get integrated.

• Commit, do not mess with rakefile, version, or history.

• Send me a pull request. Bonus points for topic branches.

Copyright¶ ↑

Copyright © 2009 Corey Haines. See LICENSE for details.