| // Copyright 2016 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. |
| |
| #![feature(reflect_marker)] |
| |
| use std::marker::Reflect; |
| use std::any::Any; |
| |
| struct Foo; |
| |
| trait Bar {} |
| |
| impl Bar for Foo {} |
| |
| fn main() { |
| let any: &Any = &Bar; //~ ERROR E0425 |
| //~| HELP trait `Bar` |
| if any.is::<u32>() { println!("u32"); } |
| } |