Method: ActionDispatch::Flash::FlashHash#sweep

Defined in:
lib/action_dispatch/middleware/flash.rb

#sweep ⇒ Object

Mark for removal entries that were kept, and delete unkept ones.

This method is called automatically by filters, so you generally don’t need to care about it.



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# File 'lib/action_dispatch/middleware/flash.rb', line 125

def sweep #:nodoc:
  keys.each do |k|
    unless @used.include?(k)
      @used << k
    else
      delete(k)
      @used.delete(k)
    end
  end

  # clean up after keys that could have been left over by calling reject! or shift on the flash
  (@used - keys).each{ |k| @used.delete(k) }
end