src/test/compile-fail/struct-like-enum-nonexhaustive.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

// 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.

enum A {
    B { x: Option<isize> },
    C
}

fn main() {
    let x = A::B { x: Some(3) };
    match x {   //~ ERROR non-exhaustive patterns
        A::C => {}
        A::B { x: None } => {}
    }
}