Module: Immunio::Utils

Defined in:
lib/immunio/utils.rb

Class Method Summary collapse

Class Method Details

.alias_method_chain(klass, target, feature) {|aliased_target, punctuation| ... } ⇒ Object

Taken by ActiveSupport to maintain privacy of aliased methods but reduce our dependency on Rails

Yields:

  • (aliased_target, punctuation) 


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# File 'lib/immunio/utils.rb', line 5

def self.alias_method_chain(klass, target, feature)
  # Strip out punctuation on predicates, bang or writer methods since
  # e.g. target?_without_feature is not a valid method name.
  aliased_target, punctuation = target.to_s.sub(/([?!=])$/, ''), $1
  yield(aliased_target, punctuation) if block_given?

  with_method = "#{aliased_target}_with_#{feature}#{punctuation}"
  without_method = "#{aliased_target}_without_#{feature}#{punctuation}"

  klass.class_eval do
    alias_method without_method, target
    alias_method target, with_method

    case
    when public_method_defined?(without_method)
      public target
    when protected_method_defined?(without_method)
      protected target
    when private_method_defined?(without_method)
      private target
    end
  end
end