Return the constants that have been defined locally by this object and not in an ancestor. This method may miss some constants if their definition in the ancestor is identical to their definition in the receiver.

Source Code

# File active_support/core_ext/module/introspection.rb, line 25
def local_constants
  inherited = {}
  ancestors.each do |anc|
    next if anc == self
    anc.constants.each { |const| inherited[const] = anc.const_get(const) }
  end
  constants.select do |const|
    ! inherited.key?(const) || inherited[const].object_id != const_get(const).object_id
  end
end