lib/rom/changeset/pipe.rb in rom-changeset-1.0.0.rc1 vs lib/rom/changeset/pipe.rb in rom-changeset-1.0.0.rc2

@@ -27,11 +27,11 @@
     # @api private
     class Pipe < Transproc::Transformer[PipeRegistry]
       extend Initializer
 
       param :processor, default: -> { self.class.transproc }
-      option :diff_processor, optional: true
       option :use_for_diff, optional: true, default: -> { true }
+      option :diff_processor, default: -> { use_for_diff ? processor : nil }
 
       def self.[](name)
         container[name]
       end