about summary refs log tree commit diff
path: root/src/test/ui/rfc-2005-default-binding-mode/enum.rs
blob: 76ea64e248ef89e4fcf031ebf1e0781a32b5c5e7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
// 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(match_default_bindings)]

enum Wrapper {
    Wrap(i32),
}

use Wrapper::Wrap;

pub fn main() {
    let Wrap(x) = &Wrap(3);
    *x += 1; //~ ERROR cannot assign to immutable


    if let Some(x) = &Some(3) {
        *x += 1; //~ ERROR cannot assign to immutable
    } else {
        panic!();
    }

    while let Some(x) = &Some(3) {
        *x += 1; //~ ERROR cannot assign to immutable
        break;
    }
}