blow.rb

# Scenario when Classes and Modules are duped in memoizers!

class A
  include Adamantium::Flat

  def foo
    :foo
  end
  memoize :foo
end

class Generator

  include Adamantium::Flat

  def generate(value)
    klass.new(value)
  end

  def klass
    A
  end
  memoize :klass

end

foo = Generator.new.generate(foo)
p foo.class
p foo.instance_of?(A) # => false!!!
p foo.foo             # Blows up as method cannot be bound to instance of cloned class!

execution-log.txt

#<Class:0x00000001d23c18>
false
/home/mbj/.rvm/gems/ruby-1.9.3-p286/gems/adamantium-0.0.3/lib/adamantium/module_methods.rb:80:in `bind': bind argument must be an instance of A (TypeError)
        from /home/mbj/.rvm/gems/ruby-1.9.3-p286/gems/adamantium-0.0.3/lib/adamantium/module_methods.rb:80:in `block (2 levels) in define_memoize_method'
        from /home/mbj/.rvm/gems/ruby-1.9.3-p286/gems/adamantium-0.0.3/lib/adamantium/module_methods.rb:79:in `fetch'
        from /home/mbj/.rvm/gems/ruby-1.9.3-p286/gems/adamantium-0.0.3/lib/adamantium/module_methods.rb:79:in `block in define_memoize_method'
        from blow.rb:30:in `<main>'