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# File 'lib/active_support/core_ext/module/better_delegation.rb', line 4
def delegate(*methods)
options = methods.pop
unless options.is_a?(Hash) && to = options[:to]
raise ArgumentError, "Delegation needs a target. Supply an options hash with a :to key as the last argument (e.g. delegate :hello, :to => :greeter)."
end
if options[:prefix] == true && options[:to].to_s =~ /^[^a-z_]/
raise ArgumentError, "Can only automatically set the delegation prefix when delegating to a method."
end
prefix = options[:prefix] && "#{options[:prefix] == true ? to : options[:prefix]}_"
methods.each do |method|
define_method method do
send(:delegator_for, to).send(method)
end
define_method "#{method}=" do |value|
send(:delegator_for, to).send("#{method}=", value)
end
end
end
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