diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/middleware/stack.rb')
-rw-r--r-- | actionpack/lib/action_dispatch/middleware/stack.rb | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/middleware/stack.rb b/actionpack/lib/action_dispatch/middleware/stack.rb index c52c8c0e6a..5c5362ce4a 100644 --- a/actionpack/lib/action_dispatch/middleware/stack.rb +++ b/actionpack/lib/action_dispatch/middleware/stack.rb @@ -122,7 +122,11 @@ module ActionDispatch find_all { |middleware| middleware.active? } end - def build(app) + def build(app = nil, &blk) + app ||= blk + + raise "MiddlewareStack#build requires an app" unless app + active.reverse.inject(app) { |a, e| e.build(a) } end end |