This shows how Ruby's method_missing and Blocks are used to allow for some very compact code creating a component tree consisting of a menu_bar holding a menu with one menu_item.

这段示例代码则向我们展示了如何使用Ruby的method_missing和Block来使得我们可以使用非常精炼的代码，创建出一个菜单栏，上面包含了拥有一个菜单项的菜单。

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Prefer compact code and let the compiler infer the type for a constant or variable.

保持代码紧凑，然后让编译器推断变量跟常量的类型。

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To do this, the optimizer USES the RTL to create fast or more compact code (or both, when possible).

为此，优化器使用RTL创建快速的或紧凑的代码(或者两者兼顾)。

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To do this, the optimizer USES the RTL to create fast or more compact code (or both, when possible).

为此，优化器使用RTL创建快速的或紧凑的代码(或者两者兼顾)。

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