First, install it:

$ gem install tacky

Then, use it like this:

require 'tacky'
obj = Tacky.new(obj)

That's it, all method calls will be cached. This means that only the first call of any method will actually reach your object. All consecutive calls will be intercepted by the Tacky decorator, which will return previously calculated values. The decorator keeps all values in its internal Hash.

If you want all methods of everything your methods return be cached too, you need to use "deep" caching (it's true by default):

obj = Tacky.new(obj, deep: true)

Keep in mind that Tacky is thread-safe.

Read these guidelines. Make sure you build is green before you contribute your pull request. You will need to have Ruby 2.3+ and Bundler installed. Then:

$ bundle update
$ bundle exec rake

If it's clean and you don't see any error messages, submit your pull request.