rust/tests/ui/type-alias-impl-trait/auto-trait-leakage3.rs

21 lines
416 B
Rust

#![feature(type_alias_impl_trait)]
#![allow(dead_code)]
// FIXME This should compile, but it currently doesn't
mod m {
pub type Foo = impl std::fmt::Debug;
pub fn foo() -> Foo {
22_u32
}
pub fn bar() {
is_send(foo());
//~^ ERROR: cannot check whether the hidden type of `auto_trait_leakage3[211d]::m::Foo::{opaque#0}
}
fn is_send<T: Send>(_: T) {}
}
fn main() {}