rust/src/test/compile-fail/borrowck-move-out-of-vec-tail.rs
2014-04-18 17:25:34 -07:00

45 lines
1.3 KiB
Rust

// Copyright 2014 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.
// Test that we do not permit moves from &[] matched by a vec pattern.
#[deriving(Clone)]
struct Foo {
string: ~str
}
pub fn main() {
let x = vec!(
Foo { string: "foo".to_owned() },
Foo { string: "bar".to_owned() },
Foo { string: "baz".to_owned() }
);
let x: &[Foo] = x.as_slice();
match x {
[_, ..tail] => {
match tail {
[Foo { string: a }, //~ ERROR cannot move out of dereference of `&`-pointer
Foo { string: b }] => {
//~^^ NOTE attempting to move value to here
//~^^ NOTE and here
}
_ => {
unreachable!();
}
}
let z = tail[0].clone();
println!("{:?}", z);
}
_ => {
unreachable!();
}
}
}