1 files changed, 30 insertions, 9 deletions
diff --git a/activesupport/lib/active_support/deprecation.rb b/activesupport/lib/active_support/deprecation.rb
index 968ee1eaf8..678cbbcbf2 100644
--- a/activesupport/lib/active_support/deprecation.rb
+++ b/activesupport/lib/active_support/deprecation.rb
@@ -1,19 +1,40 @@
 require 'active_support/core_ext/module/deprecation'
+require 'active_support/deprecation/instance_delegator'
 require 'active_support/deprecation/behaviors'
 require 'active_support/deprecation/reporting'
 require 'active_support/deprecation/method_wrappers'
 require 'active_support/deprecation/proxy_wrappers'
+require 'singleton'
 
 module ActiveSupport
-  module Deprecation
-    class << self
-      # The version the deprecated behavior will be removed, by default.
-      attr_accessor :deprecation_horizon
-    end
-    self.deprecation_horizon = '4.1'
+  # \Deprecation specifies the API used by Rails to deprecate
+  # methods, instance variables, objects and constants.
+  # The API depends on four methods:
+  #
+  # * +initialize+ which expects two parameters
+  #   described below;
+  class Deprecation
+    include Singleton
+    include InstanceDelegator
+    include Behavior
+    include Reporting
+    include MethodWrapper
+
+    # The version the deprecated behavior will be removed, by default.
+    attr_accessor :deprecation_horizon
 
-    # By default, warnings are not silenced and debugging is off.
-    self.silenced = false
-    self.debug = false
+    # It accepts two parameters on initialization. The first is an version of library
+    # and the second is an library name
+    #
+    # == Example
+    #
+    #   ActiveSupport::Deprecation.new('2.0', 'MyLibrary')
+    def initialize(deprecation_horizon = '4.1', 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