tests/ui/methods/supertrait-shadowing/no-common-ancestor-2.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

#![feature(supertrait_item_shadowing)]

trait A {
    fn hello(&self) {
        println!("A");
    }
}
impl<T> A for T {}

trait B {
    fn hello(&self) {
        println!("B");
    }
}
impl<T> B for T {}

trait C: A + B {
    fn hello(&self) {
        println!("C");
    }
}
impl<T> C for T {}

// Since `D` is not a subtrait of `C`,
// we have no obvious lower bound.

trait D: B {
    fn hello(&self) {
        println!("D");
    }
}
impl<T> D for T {}

fn main() {
    ().hello();
    //~^ ERROR multiple applicable items in scope
}