rust/src/test/compile-fail/borrowck-uniq-via-lend.rs
Patrick Walton 090040bf40 librustc: Remove ~EXPR, ~TYPE, and ~PAT from the language, except
for `~str`/`~[]`.

Note that `~self` still remains, since I forgot to add support for
`Box<self>` before the snapshot.

How to update your code:

* Instead of `~EXPR`, you should write `box EXPR`.

* Instead of `~TYPE`, you should write `Box<Type>`.

* Instead of `~PATTERN`, you should write `box PATTERN`.

[breaking-change]
2014-05-06 23:12:54 -07:00

62 lines
1.2 KiB
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.
fn borrow(_v: &int) {}
fn local() {
let mut v = box 3;
borrow(v);
}
fn local_rec() {
struct F { f: Box<int> }
let mut v = F {f: box 3};
borrow(v.f);
}
fn local_recs() {
struct F { f: G }
struct G { g: H }
struct H { h: Box<int> }
let mut v = F {f: G {g: H {h: box 3}}};
borrow(v.f.g.h);
}
fn aliased_imm() {
let mut v = box 3;
let _w = &v;
borrow(v);
}
fn aliased_mut() {
let mut v = box 3;
let _w = &mut v;
borrow(v); //~ ERROR cannot borrow `*v`
}
fn aliased_other() {
let mut v = box 3;
let mut w = box 4;
let _x = &mut w;
borrow(v);
}
fn aliased_other_reassign() {
let mut v = box 3;
let mut w = box 4;
let mut _x = &mut w;
_x = &mut v;
borrow(v); //~ ERROR cannot borrow `*v`
}
fn main() {
}