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# File 'lib/bitmask_attribute.rb', line 9
def bitmask_attribute ( attribute_name, options = {} )
default_options = {
:bitmask_object => attribute_name.to_s + '_bitmask',
:bit_ids => []
}
options = default_options.merge(options)
bitmask_obj = options[:bitmask_object]
class_eval <<-ADD_METHOD
def #{options[:bitmask_object]}
@_#{options[:bitmask_object]} ||= Bitmask.new({
:bit_ids => #{options[:bit_ids].inspect},
:value => @#{attribute_name},
:after_change => Proc.new { |bitmask|
@#{attribute_name} = bitmask.value
}
})
end
ADD_METHOD
end
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