mirror of https://github.com/rust-lang/rust
37 lines
682 B
Rust
37 lines
682 B
Rust
//@ edition:2021
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#![feature(negative_impls)]
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#![allow(unused)]
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fn main() {
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gimme_send(foo());
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//~^ ERROR cannot be sent between threads safely
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//~| NOTE cannot be sent
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//~| NOTE bound introduced by
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//~| NOTE appears within the type
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}
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fn gimme_send<T: Send>(t: T) {
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//~^ NOTE required by this bound
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//~| NOTE required by a bound
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drop(t);
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}
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struct NotSend {}
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impl Drop for NotSend {
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fn drop(&mut self) {}
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}
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impl !Send for NotSend {}
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async fn foo() {
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//~^ NOTE used within this `async` fn body
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//~| NOTE within this `impl Future
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let mut x = (NotSend {},);
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drop(x.0);
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x.0 = NotSend {};
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bar().await;
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}
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async fn bar() {}
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