| // Copyright 2015 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. |
| |
| // gate-test-box_syntax |
| |
| // Check that `box EXPR` is feature-gated. |
| // |
| // See also feature-gate-placement-expr.rs |
| // |
| // (Note that the two tests are separated since the checks appear to |
| // be performed at distinct phases, with an abort_if_errors call |
| // separating them.) |
| |
| fn main() { |
| let x = box 'c'; //~ ERROR box expression syntax is experimental |
| println!("x: {}", x); |
| } |