1 // Copyright 2014 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 // Test that generating drop glue for Box<str> doesn't ICE
14 fn f(s: Box<str>) -> Box<str> {
19 // There is currently no safe way to construct a `Box<str>`, so improvise
21 // FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
22 let box_arr: Box<[u8]> = Box::new(['h' as u8, 'e' as u8, 'l' as u8, 'l' as u8, 'o' as u8]);
23 let box_str: Box<str> = unsafe { std::mem::transmute(box_arr) };
24 assert_eq!(&*box_str, "hello");