rust/src/test/ui/traits/trait-coercion-generic-bad.rs
2018-12-25 21:08:33 -07:00

20 lines
353 B
Rust

struct Struct {
person: &'static str
}
trait Trait<T> {
fn f(&self, x: T);
}
impl Trait<&'static str> for Struct {
fn f(&self, x: &'static str) {
println!("Hello, {}!", x);
}
}
fn main() {
let s: Box<Trait<isize>> = Box::new(Struct { person: "Fred" });
//~^ ERROR `Struct: Trait<isize>` is not satisfied
s.f(1);
}