Improve readability

actionpack/lib/action_controller/caching/fragments.rb

@@ -61,8 +61,7 @@ def fragment_cache_key(key)
       end
 
       def fragment_for(block, name = {}, options = nil) #:nodoc:
-        unless perform_caching then block.call; return end
-
+        if perform_caching
           buffer = yield
 
           if cache = read_fragment(name, options)
@@ -72,6 +71,9 @@ def fragment_for(block, name = {}, options = nil) #:nodoc:
             block.call
             write_fragment(name, buffer[pos..-1], options)
           end
+        else
+          block.call
+        end
       end
 
       # Writes <tt>content</tt> to the location signified by <tt>key</tt> (see <tt>expire_fragment</tt> for acceptable formats)

actionpack/lib/action_view/template_handlers/erb.rb

@@ -53,7 +53,9 @@ def compile(template)
       end
 
       def cache_fragment(block, name = {}, options = nil) #:nodoc:
-        @view.fragment_for(block, name, options) { @view.response.template.output_buffer ||= '' }
+        @view.fragment_for(block, name, options) do
+          @view.response.template.output_buffer
+        end
       end
     end
   end