090040bf40
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]
62 lines
1.2 KiB
Rust
62 lines
1.2 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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fn borrow(_v: &int) {}
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fn local() {
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let mut v = box 3;
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borrow(v);
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}
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fn local_rec() {
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struct F { f: Box<int> }
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let mut v = F {f: box 3};
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borrow(v.f);
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}
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fn local_recs() {
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struct F { f: G }
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struct G { g: H }
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struct H { h: Box<int> }
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let mut v = F {f: G {g: H {h: box 3}}};
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borrow(v.f.g.h);
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}
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fn aliased_imm() {
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let mut v = box 3;
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let _w = &v;
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borrow(v);
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}
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fn aliased_mut() {
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let mut v = box 3;
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let _w = &mut v;
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borrow(v); //~ ERROR cannot borrow `*v`
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}
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fn aliased_other() {
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let mut v = box 3;
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let mut w = box 4;
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let _x = &mut w;
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borrow(v);
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}
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fn aliased_other_reassign() {
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let mut v = box 3;
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let mut w = box 4;
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let mut _x = &mut w;
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_x = &mut v;
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borrow(v); //~ ERROR cannot borrow `*v`
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}
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fn main() {
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}
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