mirror of https://github.com/rust-lang/rust
26 lines
525 B
Rust
26 lines
525 B
Rust
//@ edition:2018
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use std::future::Future;
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use std::pin::Pin;
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use std::task::{Context, Poll};
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fn spawn<T: Send>(_: T) {}
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pub struct AFuture;
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impl Future for AFuture{
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type Output = ();
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fn poll(mut self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<()> {
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unimplemented!()
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}
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}
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async fn foo() {
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spawn(async { //~ ERROR future cannot be sent between threads safely
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let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send`
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AFuture.await;
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let _a = a;
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});
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}
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fn main() {}
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