rust/src/test/ui/run-pass/rfcs/rfc-2008-non-exhaustive/enums_same_crate.rs

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2017-11-03 14:15:15 -05:00
// Copyright 2012 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(non_exhaustive)]
#[non_exhaustive]
pub enum NonExhaustiveEnum {
Unit,
Tuple(u32),
Struct { field: u32 }
}
fn main() {
let enum_unit = NonExhaustiveEnum::Unit;
match enum_unit {
NonExhaustiveEnum::Unit => "first",
NonExhaustiveEnum::Tuple(_) => "second",
NonExhaustiveEnum::Struct { .. } => "third",
};
}