rust/src/test/compile-fail/issue-31221.rs
2017-11-24 11:32:35 +01:00

52 lines
1.4 KiB
Rust

// 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 <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.
#![allow(dead_code)]
#![allow(unused_variables)]
#![allow(non_snake_case)]
#![deny(unreachable_patterns)]
//~^ NOTE lint level defined here
#[derive(Clone, Copy)]
enum Enum {
Var1,
Var2,
}
fn main() {
use Enum::*;
let s = Var1;
match s {
Var1 => (),
Var3 => (),
//~^ NOTE this pattern matches any value
Var2 => (),
//~^ ERROR unreachable pattern
//~^^ NOTE this is an unreachable pattern
};
match &s {
&Var1 => (),
&Var3 => (),
//~^ NOTE this pattern matches any value
&Var2 => (),
//~^ ERROR unreachable pattern
//~^^ NOTE this is an unreachable pattern
};
let t = (Var1, Var1);
match t {
(Var1, b) => (),
(c, d) => (),
//~^ NOTE this pattern matches any value
anything => ()
//~^ ERROR unreachable pattern
//~^^ NOTE this is an unreachable pattern
};
}