fixup! [changeset] port pipe to use dry-transformer

Author: solnic

changeset/lib/rom/changeset/pipe.rb

@@ -35,11 +35,6 @@ class Pipe < Dry::Transformer[PipeRegistry]
       option :use_for_diff, optional: true, default: -> { true }
       option :diff_processor, default: -> { use_for_diff ? processor : nil }
 
-      # @api private
-      def processor
-        options[:processor] || transproc
-      end
-
       def self.[](name)
         container[name]
       end
@@ -48,6 +43,11 @@ def [](name)
         self.class[name]
       end
 
+      # @api private
+      def processor
+        options[:processor] || transproc
+      end
+
       def bind(context)
         if processor.is_a?(::Proc)
           self.class.new(Pipe[-> *args { context.instance_exec(*args, &processor) }])