gistfile1.rb

class AppDelegate
  def application(application, didFinishLaunchingWithOptions:launchOptions)
    @window = UIWindow.alloc.initWithFrame(UIScreen.mainScreen.bounds)
    button = UIButton.buttonWithType(UIButtonTypeRoundedRect)
    @window.addSubview(button)
    button.frame = [[40,200],[200,50]]

    button.addTarget(self, action:"leak_some_memory", forControlEvents:UIControlEventTouchDown)
    @window.makeKeyAndVisible

    true
  end
  
  def leak_some_memory
    # Inline the "go" function here and the leak goes away.
    # It seems the leak is due to the "data" binding being a function parameter?
    go(Array.new(1024 * 1024 * 8))
  end

  def go(data)
    schedule_on_main do 
      puts "inside"
    end
  end

  def schedule_on_main(*args, &blk)
    ::Dispatch::Queue.main.async &blk
  end
end