1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // gate-test-box_syntax
13 // Check that `box EXPR` is feature-gated.
15 // See also feature-gate-placement-expr.rs
17 // (Note that the two tests are separated since the checks appear to
18 // be performed at distinct phases, with an abort_if_errors call
22 let x = box 'c'; //~ ERROR box expression syntax is experimental