Discovered a weird ruby module constant scoping issue today.

gistfile1.txt

TYPES:		{:scope=>Namespace}
self::TYPES:	{:scope=>Namespace::Mixin}

test.rb

#!/usr/bin/env ruby

module Namespace
  TYPES = {scope: self}

  module Mixin
    TYPES = {scope: self}
  end

  module SubNamespace
    include Mixin

    def self.test
      TYPES # I would assume TYPES would resolve to Mixin::TYPES since it's included
    end

    def self.workaround
      self::TYPES # explicitly access TYPES included by Mixin
    end
  end
end

print "TYPES:\t\t"
p Namespace::SubNamespace.test

print "self::TYPES:\t"
p Namespace::SubNamespace.workaround