extend ActiveSupport::Deprecation with self, allow other objects to extend/include it also.

test local deprecation

deprecator object

Test ActiveSupport::Deprecation when included

1 files changed, 31 insertions, 33 deletions

diff --git a/activesupport/lib/active_support/deprecation/behaviors.rb b/activesupport/lib/active_support/deprecation/behaviors.rb
index fc962dcb57..c956560a99 100644
--- a/activesupport/lib/active_support/deprecation/behaviors.rb
+++ b/activesupport/lib/active_support/deprecation/behaviors.rb
@@ -2,46 +2,44 @@ require "active_support/notifications"
 
 module ActiveSupport
   module Deprecation
-    class << self
-      # Whether to print a backtrace along with the warning.
-      attr_accessor :debug
+    # Whether to print a backtrace along with the warning.
+    attr_accessor :debug
 
-      # Returns the current behavior or if one isn't set, defaults to +:stderr+
-      def behavior
-        @behavior ||= [DEFAULT_BEHAVIORS[:stderr]]
-      end
+    # Returns the current behavior or if one isn't set, defaults to +:stderr+
+    def behavior
+      @behavior ||= [DEFAULT_BEHAVIORS[:stderr]]
+    end
 
-      # Sets the behavior to the specified value. Can be a single value, array, or
-      # an object that responds to +call+.
-      #
-      # Available behaviors:
-      #
-      # [+stderr+]  Log all deprecation warnings to <tt>$stderr</tt>.
-      # [+log+]     Log all deprecation warnings to +Rails.logger+.
-      # [+notify+]  Use <tt>ActiveSupport::Notifications</tt> to notify +deprecation.rails+.
-      # [+silence+] Do nothing.
-      #
-      # Setting behaviors only affects deprecations that happen after boot time.
-      # Deprecation warnings raised by gems are not affected by this setting because
-      # they happen before Rails boots up.
-      #
-      #   ActiveSupport::Deprecation.behavior = :stderr
-      #   ActiveSupport::Deprecation.behavior = [:stderr, :log]
-      #   ActiveSupport::Deprecation.behavior = MyCustomHandler
-      #   ActiveSupport::Deprecation.behavior = proc { |message, callstack| 
-      #     # custom stuff
-      #   }
-      def behavior=(behavior)
-        @behavior = Array(behavior).map { |b| DEFAULT_BEHAVIORS[b] || b }
-      end
+    # Sets the behavior to the specified value. Can be a single value, array, or
+    # an object that responds to +call+.
+    #
+    # Available behaviors:
+    #
+    # [+stderr+]  Log all deprecation warnings to +$stderr+.
+    # [+log+]     Log all deprecation warnings to +Rails.logger+.
+    # [+notify]   Use +ActiveSupport::Notifications+ to notify +deprecation.rails+.
+    # [+silence+] Do nothing.
+    #
+    # Setting behaviors only affects deprecations that happen after boot time.
+    # Deprecation warnings raised by gems are not affected by this setting because
+    # they happen before Rails boots up.
+    #
+    #   ActiveSupport::Deprecation.behavior = :stderr
+    #   ActiveSupport::Deprecation.behavior = [:stderr, :log]
+    #   ActiveSupport::Deprecation.behavior = MyCustomHandler
+    #   ActiveSupport::Deprecation.behavior = proc { |message, callstack|
+    #     # custom stuff
+    #   }
+    def behavior=(behavior)
+      @behavior = Array(behavior).map { |b| DEFAULT_BEHAVIORS[b] || b }
     end
 
     # Default warning behaviors per Rails.env.
     DEFAULT_BEHAVIORS = {
       :stderr => Proc.new { |message, callstack|
-         $stderr.puts(message)
-         $stderr.puts callstack.join("\n  ") if debug
-       },
+        $stderr.puts(message)
+        $stderr.puts callstack.join("\n  ") if debug
+      },
       :log => Proc.new { |message, callstack|
          logger =
            if defined?(Rails) && Rails.logger