1 // Copyright 2018 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 #![crate_type = "bin"]
12 #![feature(lang_items)]
13 #![feature(panic_handler)]
14 #![feature(const_panic)]
18 use core::panic::PanicInfo;
20 const Z: () = panic!("cheese");
21 //~^ ERROR this constant cannot be used
23 const Y: () = unreachable!();
24 //~^ ERROR this constant cannot be used
26 const X: () = unimplemented!();
27 //~^ ERROR this constant cannot be used
29 #[lang = "eh_personality"]
31 #[lang = "eh_unwind_resume"]
32 fn eh_unwind_resume() {}
35 fn panic(_info: &PanicInfo) -> ! {