rust/src/test/compile-fail/trait-coercion-generic-bad.rs
2016-04-05 22:56:23 +03:00

31 lines
896 B
Rust

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
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() {
// FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
let s: Box<Trait<isize>> = Box::new(Struct { person: "Fred" });
//~^ ERROR `Struct: Trait<isize>` is not satisfied
s.f(1);
}