41 lines
1014 B
Rust
41 lines
1014 B
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(box_syntax)]
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use std::fmt;
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struct Number {
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n: i64
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}
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impl fmt::Display for Number {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}", self.n)
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}
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}
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struct List {
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list: Vec<Box<ToString+'static>> }
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impl List {
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fn push(&mut self, n: Box<ToString+'static>) {
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self.list.push(n);
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}
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}
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fn main() {
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let n: Box<_> = box Number { n: 42 };
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let mut l: Box<_> = box List { list: Vec::new() };
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l.push(n);
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let x = n.to_string();
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//~^ ERROR: use of moved value: `n`
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}
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