Rubocop::DisallowSafeNavigation

The "safe navigation" operator &. makes it easier to work with and propagate nil values. This cop will disallow the safe navigation operator.

# bad
foo&.bar
a.foo&.bar

Add this line to your application's Gemfile:

gem 'rubocop-disallow_safe_navigation'

And then execute:

$ bundle

Or install it yourself as:

$ gem install rubocop-disallow_safe_navigation

You need to tell RuboCop to load the extension. There are three ways to do this:

Put this into your .rubocop.yml.

require: rubocop-disallow_safe_navigation

Now you can run rubocop and it will automatically load the RuboCop cops together with the standard cops.

rubocop --require rubocop-disallow_safe_navigation

RuboCop::RakeTask.new do |task|
  task.requires << 'rubocop-disallow_safe_navigation'
end

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/tansengming/rubocop-disallow_safe_navigation.

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