19 lines
321 B
Rust
19 lines
321 B
Rust
// check-pass
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#![feature(associated_type_defaults)]
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trait State: Sized {
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type NextState: State = StateMachineEnded;
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fn execute(self) -> Option<Self::NextState>;
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}
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struct StateMachineEnded;
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impl State for StateMachineEnded {
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fn execute(self) -> Option<Self::NextState> {
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None
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}
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}
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fn main() {}
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