mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-01 15:01:51 +00:00
17 lines
401 B
Rust
17 lines
401 B
Rust
//@ check-pass
|
|
//@ known-bug: #25860
|
|
|
|
// Should fail. The combination of variance and implied bounds for nested
|
|
// references allows us to infer a longer lifetime than we can prove.
|
|
|
|
static UNIT: &'static &'static () = &&();
|
|
|
|
fn foo<'a, 'b, T>(_: &'a &'b (), v: &'b T) -> &'a T { v }
|
|
|
|
fn bad<'a, T>(x: &'a T) -> &'static T {
|
|
let f: fn(_, &'a T) -> &'static T = foo;
|
|
f(UNIT, x)
|
|
}
|
|
|
|
fn main() {}
|