rust/src/test/compile-fail/use-after-move-implicity-coerced-object.rs

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// 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.
struct Number {
n: i64
}
impl ToStr for Number {
fn to_str(&self) -> ~str {
self.n.to_str()
}
}
struct List {
list: ~[~ToStr]
}
impl List {
fn push(&mut self, n: ~ToStr) {
self.list.push(n);
}
}
fn main() {
let n = ~Number { n: 42 };
let mut l = ~List { list: ~[] };
l.push(n);
//^~ NOTE: `n` moved here because it has type `~Number`, which is non-copyable (perhaps you meant to use clone()?)
let x = n.to_str(); //~ ERROR: use of moved value: `n`
}