rust/src/test/ui/nll/issue-57280.rs
David Wood 49337938cb
Fix bug in associated constant type annotations.
This commit reverses the variance used when relating types from the type
annotation of an associated constant - this matches the behaviour of the
lexical borrow checker and fixes a bug whereby matching a `&'a str`
against a `&'static str` would produce an error.
2019-01-03 19:33:05 +01:00

23 lines
281 B
Rust

#![feature(nll)]
// compile-pass
trait Foo {
const BLAH: &'static str;
}
struct Placeholder;
impl Foo for Placeholder {
const BLAH: &'static str = "hi";
}
fn foo(x: &str) {
match x {
<Placeholder as Foo>::BLAH => { }
_ => { }
}
}
fn main() {}