1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // Here we check that it is allowed to lend out an element of a
12 // (locally rooted) mutable, unique vector, and that we then prevent
13 // modifications to the contents.
15 fn takes_imm_elt<F>(_v: &int, f: F) where F: FnOnce() {
19 fn has_mut_vec_and_does_not_try_to_change_it() {
20 let mut v = vec!(1, 2, 3);
21 takes_imm_elt(&v[0], || {})
24 fn has_mut_vec_but_tries_to_change_it() {
25 let mut v = vec!(1, 2, 3);
28 || { //~ ERROR cannot borrow `v` as mutable