18 lines
286 B
Rust
18 lines
286 B
Rust
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pub trait Callback {
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fn cb();
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}
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pub trait Processing {
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type Call: Callback;
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}
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fn f<P: Processing + ?Sized>() {
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P::Call::cb();
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}
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fn main() {
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struct MyCall;
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f::<dyn Processing<Call = MyCall>>();
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//~^ ERROR: the trait bound `MyCall: Callback` is not satisfied
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}
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