included

# File activesupport/lib/active_support/deprecation/constant_accessor.rb, line 28 def self.included(base) require "active_support/inflector/methods" extension = Module.new do def const_missing(missing_const_name) if class_variable_defined?(:@@_deprecated_constants) if (replacement = class_variable_get(:@@_deprecated_constants)[missing_const_name.to_s]) replacement[:deprecator].warn(replacement[:message] || "#{name}::#{missing_const_name} is deprecated! Use #{replacement[:new]} instead.", caller_locations) return ActiveSupport::Inflector.constantize(replacement[:new].to_s) end end super end def deprecate_constant(const_name, new_constant, message: nil, deprecator: nil) ActiveSupport.deprecator.warn("DeprecatedConstantAccessor.deprecate_constant without a deprecator is deprecated") unless deprecator deprecator ||= ActiveSupport::Deprecation._instance class_variable_set(:@@_deprecated_constants, {}) unless class_variable_defined?(:@@_deprecated_constants) class_variable_get(:@@_deprecated_constants)[const_name.to_s] = { new: new_constant, message: message, deprecator: deprecator } end end base.singleton_class.prepend extension end