rust/src/test/compile-fail/borrowck/borrowck-borrowed-uniq-rvalue.rs
2016-02-24 18:40:39 -05:00

28 lines
922 B
Rust

// Copyright 2012 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.
//buggy.rs
#![feature(box_syntax)]
extern crate collections;
use std::collections::HashMap;
fn main() {
let tmp: Box<_>;
let mut buggy_map: HashMap<usize, &usize> = HashMap::new();
// FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
buggy_map.insert(42, &*Box::new(1)); //~ ERROR borrowed value does not live long enough
// but it is ok if we use a temporary
tmp = box 2;
buggy_map.insert(43, &*tmp);
}