Laissez

Lazy accessors, yo.

Adds lazy_accessor, lazy_reader, and lazy_writer to the Module class. Behaves just like its attr_* counterparts, except if the value is a Proc, the return value of calling the proc is returned instead.

Example:

class Person
  lazy_accessor :name
end

person = Person.new
person.name # => nil
person.name = proc { "Ron Swanson" }
person.name # => "Ron Swanson"

Additionally, you can pass a block to the getter instead, making the = unnecessary.

person.name { "Jean-Ralphio Saperstein" }
person.name # => "Jean-Ralphio Saperstein"

Why would you want to use this?

Lazy configuration
Cheap DSLs
Cheap method forwarding
Defaults that might be destructive

Is this a good idea?

TBD.

Installation

Add this line to your application's Gemfile:

gem 'laissez'

And then execute:

$ bundle

Or install it yourself as:

$ gem install laissez

Contributing

Fork it ( https://github.com/printreleaf/laissez/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

Run the tests

$ rake test

laissez