lib/surrogate/method_definition.rb in surrogate-0.6.1 vs lib/surrogate/method_definition.rb in surrogate-0.6.2

@@ -37,19 +37,25 @@
     end
 
     private
 
     def errorizer
-      @errorizer ||= ArgumentErrorizer.new name, default_proc
+      @errorizer ||= ArgumentErrorizer.new name, to_method_definition(default_proc)
     end
 
     def default_proc_as_method_on(instance)
       unique_name = "surrogate_temp_method_#{Time.now.to_i}_#{rand 10000000}"
       klass = instance.singleton_class
       klass.__send__ :define_method, unique_name, &default_proc
       as_method = klass.instance_method unique_name
       klass.__send__ :remove_method, unique_name
       as_method.bind instance
+    end
+
+    def to_method_definition(default_proc)
+      object = Object.new
+      object.define_singleton_method(:temp_method, &default_proc)
+      object.method(:temp_method)
     end
   end
 end