rust/src/test/ui/reachable/expr_cast.rs

#![allow(unused_variables)]
#![allow(unused_assignments)]
#![allow(dead_code)]
#![deny(unreachable_code)]
#![feature(never_type, type_ascription)]

fn a() {
    // the cast is unreachable:
    let x = {return} as !; //~ ERROR unreachable
}

fn main() { }
cherry-pick over the tests I wrote for the reachability code For the most part, the current code performs similarly, although it differs in some particulars. I'll be nice to have these tests for judging future changes, as well. 2017-03-21 08:41:41 -05:00			`#![allow(unused_variables)]`
			`#![allow(unused_assignments)]`
			`#![allow(dead_code)]`
			`#![deny(unreachable_code)]`
Revert stabilization of `feature(never_type)`. This commit is just covering the feature gate itself and the tests that made direct use of `!` and thus need to opt back into the feature. A follow on commit brings back the other change that motivates the revert: Namely, going back to the old rules for falling back to `()`. 2018-04-20 10:07:58 -05:00			`#![feature(never_type, type_ascription)]`
cherry-pick over the tests I wrote for the reachability code For the most part, the current code performs similarly, although it differs in some particulars. I'll be nice to have these tests for judging future changes, as well. 2017-03-21 08:41:41 -05:00
			`fn a() {`
			`// the cast is unreachable:`
Merge cfail and ui tests into ui tests 2017-11-20 06:13:27 -06:00			`let x = {return} as !; //~ ERROR unreachable`
cherry-pick over the tests I wrote for the reachability code For the most part, the current code performs similarly, although it differs in some particulars. I'll be nice to have these tests for judging future changes, as well. 2017-03-21 08:41:41 -05:00			`}`

			`fn main() { }`