rust/tests/ui/late-bound-lifetimes/predicate-is-global.rs
2024-02-16 20:02:50 +00:00

41 lines
754 B
Rust

//@ check-pass
trait Foo {
type Assoc;
fn do_it(_: &Self::Assoc)
where
for<'a> Self: Baz<'a>;
}
trait Baz<'a>: Foo {}
impl Foo for () {
type Assoc = Inherent;
// Ensure that the `for<'a> Self: Baz<'a>` predicate, which has
// a supertrait `for<'a> Self: Foo`, does not cause us to fail
// to normalize `Self::Assoc`.
fn do_it(x: &Self::Assoc)
where
for<'a> Self: Baz<'a>,
{
x.inherent();
}
}
struct Inherent;
impl Inherent {
fn inherent(&self) {}
}
// This trivial bound doesn't hold, but the unused lifetime tripped up that check after #117589, and
// showed up in its crater results (in `soa-derive 0.13.0`).
fn do_it()
where
for<'a> Inherent: Clone,
{
}
fn main() {}