# Module: Concurrent::ReInclude

Included in:
  Promises::FactoryMethods

Defined in:
  lib/concurrent/re_include.rb

## Overview

Methods form module A included to a module B, which is already included into class C, will not be visible in the C class. If this module is extended to B then A's methods are correctly made visible to C.

Examples:

    module A
      def a
        :a
      end
    end

    module B1
    end

    class C1
      include B1
    end

    module B2
      extend Concurrent::ReInclude
    end

    class C2
      include B2
    end

    B1.send :include, A
    B2.send :include, A

    C1.new.respond_to? :a # => false
    C2.new.respond_to? :a # => true