rust/tests/ui/async-await/pin-reborrow-arg.rs
2024-09-19 16:28:19 -07:00

37 lines
617 B
Rust

//@ check-pass
#![feature(pin_ergonomics)]
#![allow(dead_code, incomplete_features)]
use std::pin::Pin;
struct Foo;
impl Foo {
fn baz(self: Pin<&mut Self>) {
}
}
fn foo(_: Pin<&mut Foo>) {
}
fn foo_const(_: Pin<&Foo>) {
}
fn bar(x: Pin<&mut Foo>) {
foo(x);
foo(x); // for this to work we need to automatically reborrow,
// as if the user had written `foo(x.as_mut())`.
Foo::baz(x);
Foo::baz(x);
foo_const(x); // make sure we can reborrow &mut as &.
let x: Pin<&Foo> = Pin::new(&Foo);
foo_const(x); // make sure reborrowing from & to & works.
}
fn main() {}