mirror of https://github.com/rust-lang/rust
22 lines
363 B
Rust
22 lines
363 B
Rust
//@ check-pass
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#![deny(unused_must_use)]
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use std::future::Future;
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use std::pin::Pin;
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trait Factory {
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type Output;
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}
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impl Factory for () {
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type Output = Pin<Box<dyn Future<Output = ()> + 'static>>;
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}
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// Make sure we don't get an `unused_must_use` error on the *associated type bound*.
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fn f() -> impl Factory<Output: Future> {}
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fn main() {
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f();
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}
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