require "singleton" module ActiveSupport # \Deprecation specifies the API used by Rails to deprecate methods, instance # variables, objects and constants. class Deprecation # active_support.rb sets an autoload for ActiveSupport::Deprecation. # # If these requires were at the top of the file the constant would not be # defined by the time their files were loaded. Since some of them reopen # ActiveSupport::Deprecation its autoload would be triggered, resulting in # a circular require warning for active_support/deprecation.rb. # # So, we define the constant first, and load dependencies later. require_relative "deprecation/instance_delegator" require_relative "deprecation/behaviors" require_relative "deprecation/reporting" require_relative "deprecation/constant_accessor" require_relative "deprecation/method_wrappers" require_relative "deprecation/proxy_wrappers" require_relative "core_ext/module/deprecation" include Singleton include InstanceDelegator include Behavior include Reporting include MethodWrapper # The version number in which the deprecated behavior will be removed, by default. attr_accessor :deprecation_horizon # It accepts two parameters on initialization. The first is a version of library # and the second is a library name. # # ActiveSupport::Deprecation.new('2.0', 'MyLibrary') def initialize(deprecation_horizon = "6.0", gem_name = "Rails") self.gem_name = gem_name self.deprecation_horizon = deprecation_horizon # By default, warnings are not silenced and debugging is off. self.silenced = false self.debug = false end end end