1 files changed, 12 insertions, 13 deletions
diff --git a/actionview/lib/action_view/template/handlers/builder.rb b/actionview/lib/action_view/template/handlers/builder.rb
index d90b0c6378..e5413cd2a0 100644
--- a/actionview/lib/action_view/template/handlers/builder.rb
+++ b/actionview/lib/action_view/template/handlers/builder.rb
@@ -1,26 +1,25 @@
+# frozen_string_literal: true
+
 module ActionView
   module Template::Handlers
     class Builder
-      # Default format used by Builder.
-      class_attribute :default_format
-      self.default_format = :xml
+      class_attribute :default_format, default: :xml
 
-      def call(template)
+      def call(template, source)
         require_engine
-        "xml = ::Builder::XmlMarkup.new(:indent => 2);" +
+        "xml = ::Builder::XmlMarkup.new(:indent => 2);" \
           "self.output_buffer = xml.target!;" +
-          template.source +
+          source +
           ";xml.target!;"
       end
 
-      protected
-
-      def require_engine
-        @required ||= begin
-          require "builder"
-          true
+      private
+        def require_engine # :doc:
+          @required ||= begin
+            require "builder"
+            true
+          end
         end
-      end
     end
   end
 end