mirror of https://github.com/rust-lang/rust
27 lines
419 B
Rust
27 lines
419 B
Rust
//@ check-pass
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trait Service {
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type S;
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}
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trait Framing {
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type F;
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}
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impl Framing for () {
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type F = ();
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}
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trait HttpService<F: Framing>: Service<S = F::F> {}
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type BoxService = Box<dyn HttpService<(), S = ()>>;
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fn build_server<F: FnOnce() -> BoxService>(_: F) {}
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fn make_server<F: Framing>() -> Box<dyn HttpService<F, S = F::F>> {
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unimplemented!()
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}
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fn main() {
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build_server(|| make_server())
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}
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