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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.
// Tests that a closure which mutates a local variable
// cannot also be supplied a borrowed version of that
// variable's contents. Issue #11192.
#![feature(box_syntax)]
struct Foo {
x: isize
}
impl Drop for Foo {
fn drop(&mut self) {
println!("drop {}", self.x);
}
}
fn main() {
let mut ptr: Box<_> = box Foo { x: 0 };
let mut test = |foo: &Foo| {
ptr = box Foo { x: ptr.x + 1 };
};
test(&*ptr); //~ ERROR cannot borrow `*ptr`
}
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