24 lines
484 B
Rust
24 lines
484 B
Rust
//@ run-pass
|
|
#![allow(dead_code)]
|
|
|
|
trait A { fn a(&self) -> isize; }
|
|
trait B: A { fn b(&self) -> isize; }
|
|
trait C: A { fn c(&self) -> isize; }
|
|
|
|
struct S { bogus: () }
|
|
|
|
impl A for S { fn a(&self) -> isize { 10 } }
|
|
impl B for S { fn b(&self) -> isize { 20 } }
|
|
impl C for S { fn c(&self) -> isize { 30 } }
|
|
|
|
// Both B and C inherit from A
|
|
fn f<T:B + C>(x: &T) {
|
|
assert_eq!(x.a(), 10);
|
|
assert_eq!(x.b(), 20);
|
|
assert_eq!(x.c(), 30);
|
|
}
|
|
|
|
pub fn main() {
|
|
f(&S { bogus: () })
|
|
}
|