25 lines
577 B
Rust
25 lines
577 B
Rust
// Regression test for #48071. This test used to ICE because -- in
|
|
// the leak-check -- it would pass since we knew that the return type
|
|
// was `'static`, and hence `'static: 'a` was legal even for a
|
|
// placeholder region, but in NLL land it would fail because we had
|
|
// rewritten `'static` to a region variable.
|
|
//
|
|
//@ check-pass
|
|
|
|
trait Foo {
|
|
fn foo(&self) { }
|
|
}
|
|
|
|
impl Foo for () {
|
|
}
|
|
|
|
type MakeFooFn = for<'a> fn(&'a u8) -> Box<dyn Foo + 'a>;
|
|
|
|
fn make_foo(x: &u8) -> Box<dyn Foo + 'static> {
|
|
Box::new(())
|
|
}
|
|
|
|
fn main() {
|
|
let x: MakeFooFn = make_foo as MakeFooFn;
|
|
}
|