Module: SuperModule

Defined in:
lib/super_module.rb

Overview

This module allows defining class methods and method invocations the same way a super class does without using def included(base).

Constant Summary collapse

EXCLUDED_SINGLETON_METHODS = 
[
  :__super_module_class_methods,
  :__invoke_super_module_class_method_calls,
  :__define_super_module_class_methods,
  :__restore_original_method_missing,
  :included, :method_missing,
  :singleton_method_added
]

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/super_module.rb', line 18

def self.included(base)
  base.class_eval do
    class << self

      def include(base, &block)
        method_missing('include', base, &block)
      end

      def __super_module_class_method_calls
        @__super_module_class_method_calls ||= []
      end

      def __super_module_class_methods
        @__super_module_class_methods ||= []
      end

      def singleton_method_added(method_name)
        __super_module_class_methods << [method_name, method(method_name)] unless EXCLUDED_SINGLETON_METHODS.include?(method_name)
        super
      end

      def method_missing(method_name, *args, &block)
        __super_module_class_method_calls << [method_name, args, block]
      end

      def __invoke_super_module_class_method_calls(base)
        __super_module_class_method_calls.each do |method_name, args, block|
          base.class_eval do
            send(method_name, *args, &block)
          end
        end
      end

      def __define_super_module_class_methods(base)
        __super_module_class_methods.each do |method_name, method|
          base.class_eval do
            self.class.send(:define_method, method_name, &method)
          end
        end
      end

      def included(base)
        __invoke_super_module_class_method_calls(base)
        __define_super_module_class_methods(base)
      end
    end
  end
end