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require 'active_support/concern'
module Rails
class Railtie
module Configurable
extend ActiveSupport::Concern
module ClassMethods
delegate :config, :to => :instance
def inherited(base)
raise "You cannot inherit from a #{self.superclass.name} child"
end
def instance
@instance ||= new
end
def respond_to?(*args)
super || instance.respond_to?(*args)
end
def configure(&block)
class_eval(&block)
end
protected
def method_missing(*args, &block)
instance.send(*args, &block)
end
end
end
end
end
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