diff options
Diffstat (limited to 'activesupport/lib/active_support/notifications/fanout.rb')
| -rw-r--r-- | activesupport/lib/active_support/notifications/fanout.rb | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/notifications/fanout.rb b/activesupport/lib/active_support/notifications/fanout.rb index 25aab175b4..4e4ca70942 100644 --- a/activesupport/lib/active_support/notifications/fanout.rb +++ b/activesupport/lib/active_support/notifications/fanout.rb @@ -70,12 +70,29 @@ module ActiveSupport module Subscribers # :nodoc: def self.new(pattern, listener) + subscriber_class = Timed + if listener.respond_to?(:start) && listener.respond_to?(:finish) - subscriber = Evented.new pattern, listener + subscriber_class = Evented else - subscriber = Timed.new pattern, listener + # Doing all this to detect a block like `proc { |x| }` vs + # `proc { |*x| }` or `proc { |**x| }` + if listener.respond_to?(:parameters) + params = listener.parameters + if params.length == 1 && params.first.first == :opt + subscriber_class = EventObject + end + end end + wrap_all pattern, subscriber_class.new(pattern, listener) + end + + def self.event_object_subscriber(pattern, block) + wrap_all pattern, EventObject.new(pattern, block) + end + + def self.wrap_all(pattern, subscriber) unless pattern AllMessages.new(subscriber) else @@ -130,6 +147,27 @@ module ActiveSupport end end + class EventObject < Evented + def start(name, id, payload) + stack = Thread.current[:_event_stack] ||= [] + event = build_event name, id, payload + event.start! + stack.push event + end + + def finish(name, id, payload) + stack = Thread.current[:_event_stack] + event = stack.pop + event.finish! + @delegate.call event + end + + private + def build_event(name, id, payload) + ActiveSupport::Notifications::Event.new name, nil, nil, id, payload + end + end + class AllMessages # :nodoc: def initialize(delegate) @delegate = delegate |