1 files changed, 26 insertions, 0 deletions
diff --git a/actionpack/lib/action_view/body_parts/future.rb b/actionpack/lib/action_view/body_parts/future.rb
new file mode 100644
index 0000000000..a5291c6e8c
--- /dev/null
+++ b/actionpack/lib/action_view/body_parts/future.rb
@@ -0,0 +1,26 @@
+module ActionView
+  module BodyParts
+    class Future
+      def initialize(&block)
+        @block = block
+        @parts = []
+      end
+
+      def to_s
+        finish
+        body
+      end
+
+      protected
+        def work
+          @block.call(@parts)
+        end
+
+        def body
+          str = ''
+          @parts.each { |part| str << part.to_s }
+          str
+        end
+    end
+  end
+end