15 lines
193 B
Rust
15 lines
193 B
Rust
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use option::*;
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enum Q { R(Option<uint>) }
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fn xyzzy(q: Q) -> uint {
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match q {
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R(S) if S.is_some() => { 0 }
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_ => 1
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}
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}
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fn main() {
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assert xyzzy(R(Some(5))) == 0;
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}
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