21 lines
336 B
Rust
21 lines
336 B
Rust
// check-pass
|
|
// issue: 114113
|
|
// revisions: current next
|
|
//[next] compile-flags: -Ztrait-solver=next
|
|
|
|
#![feature(trait_upcasting)]
|
|
|
|
trait Mirror {
|
|
type Assoc;
|
|
}
|
|
impl<T> Mirror for T {
|
|
type Assoc = T;
|
|
}
|
|
|
|
trait Bar<T> {}
|
|
trait Foo<T>: Bar<<T as Mirror>::Assoc> {}
|
|
|
|
fn upcast<T>(x: &dyn Foo<T>) -> &dyn Bar<T> { x }
|
|
|
|
fn main() {}
|