rust/src/test/ui/issues/issue-24204.rs
Matthew Jasper 34e5a4992c Normalize projection bounds when considering candidates
This unfortunately requires some winnowing hacks to avoid
now ambiguous candidates.
2020-10-06 11:19:31 +01:00

26 lines
369 B
Rust

// check-pass
#![allow(dead_code)]
trait MultiDispatch<T> {
type O;
}
trait Trait: Sized {
type A: MultiDispatch<Self::B, O = Self>;
type B;
fn new<U>(u: U) -> <Self::A as MultiDispatch<U>>::O
where
Self::A: MultiDispatch<U>;
}
fn test<T: Trait<B = i32>>(b: i32) -> T
where
T::A: MultiDispatch<i32>,
{
T::new(b)
}
fn main() {}