mirror of https://github.com/rust-lang/rust
26 lines
431 B
Rust
26 lines
431 B
Rust
// Check that we don't have a cycle when we try to normalize `Self::U` in the
|
|
// bound below. Make sure that having a lifetime on the trait object doesn't break things
|
|
|
|
//@ check-pass
|
|
|
|
trait Is {
|
|
type T;
|
|
}
|
|
|
|
impl<U> Is for U {
|
|
type T = U;
|
|
}
|
|
|
|
trait Obj<'a> {
|
|
type U: Is<T = Self::V>;
|
|
type V;
|
|
}
|
|
|
|
fn is_obj<'a, T: ?Sized + Obj<'a>>(_: &T) {}
|
|
|
|
fn f<'a>(x: &dyn Obj<'a, U = i32, V = i32>) {
|
|
is_obj(x)
|
|
}
|
|
|
|
fn main() {}
|