36 lines
997 B
Rust
36 lines
997 B
Rust
// Copyright 2015 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.
|
|
|
|
use std::ops::AddAssign;
|
|
|
|
struct Int(i32);
|
|
|
|
impl AddAssign for Int {
|
|
fn add_assign(&mut self, _: Int) {
|
|
unimplemented!()
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let mut x = Int(1);
|
|
x //~ error: use of moved value: `x`
|
|
//~^ value used here after move
|
|
//~| note: move occurs because `x` has type `Int`
|
|
+=
|
|
x; //~ value moved here
|
|
|
|
let y = Int(2);
|
|
//~^use `mut y` here to make mutable
|
|
y //~ error: cannot borrow immutable local variable `y` as mutable
|
|
//~| cannot borrow
|
|
+=
|
|
Int(1);
|
|
}
|