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// 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.
// exec-env:RUST_POISON_ON_FREE=1
use std::gc::GC;
fn testfn(cond: bool) {
let mut x = box(GC) 3i;
let mut y = box(GC) 4i;
// borrow x and y
let r_x = &*x;
let r_y = &*y;
let mut r = r_x;
let mut exp = 3;
if cond {
r = r_y;
exp = 4;
}
println!("*r = {}, exp = {}", *r, exp);
assert_eq!(*r, exp);
x = box(GC) 5i; //~ERROR cannot assign to `x` because it is borrowed
y = box(GC) 6i; //~ERROR cannot assign to `y` because it is borrowed
println!("*r = {}, exp = {}", *r, exp);
assert_eq!(*r, exp);
assert_eq!(x, box(GC) 5i);
assert_eq!(y, box(GC) 6i);
}
pub fn main() {
testfn(true);
testfn(false);
}
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