Some more tweaks on <% %>.

  * The cache helper is now semantically "mark this region for caching"
  * As a result, <% x = cache do %> no longer works

3 files changed, 4 insertions, 4 deletions

diff --git a/actionpack/lib/action_controller/caching/fragments.rb b/actionpack/lib/action_controller/caching/fragments.rb
index 19bf3ddd3b..8a10bdfe23 100644
--- a/actionpack/lib/action_controller/caching/fragments.rb
+++ b/actionpack/lib/action_controller/caching/fragments.rb
@@ -44,9 +44,8 @@ module ActionController #:nodoc:
             buffer = view_context.output_buffer
             pos = buffer.length
             yield
-            fragment = buffer[pos..-1]
+            fragment = buffer.slice!(pos..-1)
             write_fragment(name, fragment, options)
-            fragment.is_a?(String) ? ActionView::NonConcattingString.new(fragment) : fragment
           end
         else
           ret = yield
diff --git a/actionpack/lib/action_view/helpers/cache_helper.rb b/actionpack/lib/action_view/helpers/cache_helper.rb
index 3729d7daa8..f5c2127d3f 100644
--- a/actionpack/lib/action_view/helpers/cache_helper.rb
+++ b/actionpack/lib/action_view/helpers/cache_helper.rb
@@ -32,7 +32,8 @@ module ActionView
       #      <i>Topics listed alphabetically</i>
       #    <% end %>
       def cache(name = {}, options = nil, &block)
-        controller.fragment_for(name, options, &block)
+        safe_concat controller.fragment_for(name, options, &block)
+        nil
       end
     end
   end
diff --git a/actionpack/lib/action_view/helpers/text_helper.rb b/actionpack/lib/action_view/helpers/text_helper.rb
index b19a9754f4..b5bf813e07 100644
--- a/actionpack/lib/action_view/helpers/text_helper.rb
+++ b/actionpack/lib/action_view/helpers/text_helper.rb
@@ -29,7 +29,7 @@ module ActionView
       end
 
       def safe_concat(string)
-        output_buffer.safe_concat(string)
+        output_buffer.respond_to?(:safe_concat) ? output_buffer.safe_concat(string) : concat(string)
       end
 
       # Truncates a given +text+ after a given <tt>:length</tt> if +text+ is longer than <tt>:length</tt>