Class: Module

Inherits:
Object
  • Object
show all
Defined in:
lib/active_support_alias_class_method/core_ext/module/aliasing.rb

Instance Method Summary collapse

Instance Method Details

#alias_class_method(new, original) ⇒ Object 



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# File 'lib/active_support_alias_class_method/core_ext/module/aliasing.rb', line 4

def alias_class_method(new, original)
  singleton_class.class_eval do
    alias_method new, original
  end
end

#alias_class_method_chain(target, feature) {|aliased_target, punctuation| ... } ⇒ Object

Yields:

  • (aliased_target, punctuation) 


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# File 'lib/active_support_alias_class_method/core_ext/module/aliasing.rb', line 10

def alias_class_method_chain(target, feature)
  # Strip out punctuation on predicates or bang 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, without_method = "#{aliased_target}_with_#{feature}#{punctuation}", "#{aliased_target}_without_#{feature}#{punctuation}"

  self.singleton_class.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