15 lines
247 B
Rust
15 lines
247 B
Rust
#![feature(type_alias_impl_trait)]
|
|
|
|
trait X {
|
|
type I;
|
|
fn f() -> Self::I;
|
|
}
|
|
|
|
impl<T> X for () {
|
|
//~^ ERROR `T` is not constrained by the impl trait, self type, or predicates
|
|
type I = impl Sized;
|
|
fn f() -> Self::I {}
|
|
}
|
|
|
|
fn main() {}
|