class Device
def initialize(device_id, data_resource)
@id = device_id
@data_resource = data_resource
end
def display_device
mode = @data_resource.get_display_device_mode(@id)
presets = @data_resource.get_display_device_presets(@id)
summary = "display_device: #{mode} ($#{presets})"
return "* #{summary}" if presets == "XTC909"
summary
end
def chip
mode = @data_resource.get_chip_mode(@id)
presets = @data_resource.get_chip_presets(@id)
summary = "chip: #{mode} ($#{presets})"
return "* #{summary}" if presets == "XTC909"
summary
end
def input_device
mode = @data_resource.get_input_device_mode(@id)
presets = @data_resource.get_input_device_presets(@id)
summary = "input_device: #{mode} ($#{presets})"
return "* #{summary}" if presets == "XTC909"
summary
end
end
从上面的代码可以看出,方法中有相当多的冗余。 无论元编程是否是减少冗余的最佳方法,我都希望学习如何在Ruby中使用元编程来减少某些重复性,如果有人可以提供一些建议。如何使用元编程来减少此Ruby代码中的冗余?