freeezer

fre"e"ezer is a gem which provides a deep_freeze method for Hash and Array object.

Add this line to your application's Gemfile:

gem 'freeezer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install freeezer

All you need to do is just to call using Freeezer and you can use deep_freeeze method for Hash and Array object.

using Freeezer
  
HASH_CONST = { first: 'one', second: 'two' }.deep_freeze
HASH_CONST.all?{|_key, value| value.frozen? } # => true

ARRAY_CONST = ['first', 'second', 'third'].deep_freeze
ARRAY_CONST.all?{|value| value.frozen? } # => true

Of course you can call using Freeezer inside a class.

class TestClass
  using Freeezer
  
  HASH_CONST = { first: 'one', second: 'two' }.deep_freeze
  ARRAY_CONST = ['first', 'second', 'third'].deep_freeze
end

TestClass::HASH_CONST.all?{|_key, value| value.frozen? } # => true
TestClass::ARRAY_CONST.all?{|value| value.frozen? } # => true

Also, it will freeze Hash, or Array even if it is nested. Please be aware that the name is not freezer but freeezer.

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/shuheiktgw/freeezer. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Freeezer project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.