Dice up ActiveSupport::Deprecation

1 files changed, 27 insertions, 0 deletions

diff --git a/activesupport/lib/active_support/deprecation/method_wrappers.rb b/activesupport/lib/active_support/deprecation/method_wrappers.rb
new file mode 100644
index 0000000000..845bef059f
--- /dev/null
+++ b/activesupport/lib/active_support/deprecation/method_wrappers.rb
@@ -0,0 +1,27 @@
+require 'active_support/core_ext/module/deprecation'
+
+module ActiveSupport
+  class << Deprecation
+    # Declare that a method has been deprecated.
+    def deprecate_methods(target_module, *method_names)
+      options = method_names.extract_options!
+      method_names += options.keys
+
+      method_names.each do |method_name|
+        target_module.alias_method_chain(method_name, :deprecation) do |target, punctuation|
+          target_module.module_eval(<<-end_eval, __FILE__, __LINE__)
+            def #{target}_with_deprecation#{punctuation}(*args, &block)   # def generate_secret_with_deprecation(*args, &block)
+              ::ActiveSupport::Deprecation.warn(                          #   ::ActiveSupport::Deprecation.warn(
+                ::ActiveSupport::Deprecation.deprecated_method_warning(   #     ::ActiveSupport::Deprecation.deprecated_method_warning(
+                  :#{method_name},                                        #       :generate_secret,
+                  #{options[method_name].inspect}),                       #       "You should use ActiveSupport::SecureRandom.hex(64)"),
+                caller                                                    #     caller
+              )                                                           #   )
+              #{target}_without_deprecation#{punctuation}(*args, &block)  #   generate_secret_without_deprecation(*args, &block)
+            end                                                           # end
+          end_eval
+        end
+      end
+    end
+  end
+end