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
}
|
