about summary refs log tree commit diff
path: root/tests/ui/issues/issue-43355.rs
blob: 597472b4f48f0ac41f28204e412fb34557fe4dec (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
//@ dont-require-annotations: NOTE

pub trait Trait1<X> {
    type Output;
}

pub trait Trait2<X> {}

pub struct A;

impl<X, T> Trait1<X> for T where T: Trait2<X> {
    type Output = ();
}

impl<X> Trait1<Box<X>> for A {
//~^ ERROR conflicting implementations of trait
//~| NOTE downstream crates may implement trait `Trait2<std::boxed::Box<_>>` for type `A`
    type Output = i32;
}

fn main() {}