| // Copyright 2013 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(box_patterns)] |
| #![feature(box_syntax)] |
| |
| trait MyTrait { |
| fn dummy(&self) {} |
| } |
| |
| pub enum TraitWrapper { |
| A(Box<MyTrait+'static>), |
| } |
| |
| fn get_tw_map(tw: &TraitWrapper) -> &MyTrait { |
| match *tw { |
| TraitWrapper::A(box ref map) => map, //~ ERROR cannot be dereferenced |
| } |
| } |
| |
| pub fn main() {} |
