It's an object wrapper that forwards all calls to the reference target object. This object is not created until the first method dispatch.
Add this line to your application's Gemfile:
gem 'lazy_object'
And then execute:
$ bundle
Or install it yourself as:
$ gem install lazy_object
Pass a block to the initializer, which returns an instance of the target object. Lazy object forwards all method calls to the target. The block only gets called the first time a method is forwarded.
Example:
lazy = LazyObject.new { VeryExpensiveObject.new }
# At this point the VeryExpensiveObject hasn't been initialized yet.
# Initializes VeryExpensiveObject and calls 'get_expensive_results' on it, passing in foo and bar
lazy.get_expensive_results(foo, bar)
# You can pass in blocks to the target.
lazy.perform_operation do |foo, bar|
foo + bar
end- Fork it ( https://github.com/[my-github-username]/lazy_object/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create a new Pull Request
- Make sure all the test pass and your changes have test coverage!