module RuboCop::Cop::EnforceSuperclass

def self.included(base)
  warn Rainbow(
    '`RuboCop::Cop::EnforceSuperclass` is deprecated and will be removed in RuboCop 2.0. ' \
    'Please upgrade to RuboCop Rails 2.9 or newer to continue.'
  ).yellow
  # @!method class_definition(node)
  base.def_node_matcher :class_definition, <<~PATTERN
    (class (const _ !:#{base::SUPERCLASS}) #{base::BASE_PATTERN} ...)
  PATTERN
  # @!method class_new_definition(node)
  base.def_node_matcher :class_new_definition, <<~PATTERN
    [!^(casgn {nil? cbase} :#{base::SUPERCLASS} ...)
     !^^(casgn {nil? cbase} :#{base::SUPERCLASS} (block ...))
     (send (const {nil? cbase} :Class) :new #{base::BASE_PATTERN})]
  PATTERN
end

def on_class(node)
  class_definition(node) { add_offense(node.children[1]) }
end

def on_send(node)
  class_new_definition(node) { add_offense(node.children.last) }
end