This is some random bullshit about non-nullable stuff in Ruby.

total_bullshit.rb

# I'm making all this up. Just random thoughts. It's 11pm, this probably wouldn't even work.

class Object

  @nullable = false

  def nullable?
    @nullable
  end

  def nullable!
    @nullable = true
  end
end

some_variable = null # zomg NullAssignmentError
                     #
                     # the interpreter would check the property before doing the assignment

some_variable.nullable!
some_variable = null # cool story bro.