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module ActionMailer
module AdvAttrAccessor #:nodoc:
def adv_attr_accessor(*names)
names.each do |name|
ivar = "@#{name}"
class_eval <<-ACCESSORS, __FILE__, __LINE__ + 1
def #{name}=(value)
#{ivar} = value
end
def #{name}(*args)
raise ArgumentError, "expected 0 or 1 parameters" unless args.length <= 1
if args.empty?
#{ivar} if instance_variable_names.include?(#{ivar.inspect})
else
#{ivar} = args.first
end
end
ACCESSORS
self.protected_instance_variables << ivar if self.respond_to?(:protected_instance_variables)
end
end
end
end
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