2012-05-14 00:12:58 -05:00
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enum maybe<T> { just(T), nothing }
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impl methods<T:copy> for maybe<T> {
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2012-06-29 18:26:56 -05:00
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fn ~[](idx: uint) -> T {
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2012-08-06 14:34:08 -05:00
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match self {
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2012-05-14 00:12:58 -05:00
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just(t) { t }
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nothing { fail; }
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}
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}
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}
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