rust/src/test/compile-fail/match-privately-empty.rs
Felix S. Klock II fadabd6fbb 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 18:09:28 +02:00

31 lines
899 B
Rust

// Copyright 2017 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 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![feature(never_type)]
#![feature(exhaustive_patterns)]
mod private {
pub struct Private {
_bot: !,
pub misc: bool,
}
pub const DATA: Option<Private> = None;
}
fn main() {
match private::DATA {
//~^ ERROR non-exhaustive patterns: `Some(Private { misc: true, .. })` not covered
None => {}
Some(private::Private {
misc: false,
..
}) => {}
}
}