26 lines
378 B
Rust
26 lines
378 B
Rust
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struct dtor {
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x: @mut int;
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drop {
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// abuse access to shared mutable state to write this code
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*self.x -= 1;
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}
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}
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fn unwrap<T>(+o: option<T>) -> T {
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match move o {
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some(move v) => v,
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none => fail
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}
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}
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fn main() {
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let x = @mut 1;
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{
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let b = some(dtor { x:x });
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let c = unwrap(b);
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}
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assert *x == 0;
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}
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