// Copyright 2016 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![allow(unused_variables)] #![allow(unused_assignments)] #![allow(dead_code)] #![deny(unreachable_code)] #![feature(type_ascription)] fn a() { // the cast is unreachable: let x = {return} as !; //~ ERROR unreachable } fn main() { }