31 lines
812 B
Rust
31 lines
812 B
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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#![feature(box_syntax)]
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struct node_ {
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a: Box<cycle>
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}
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enum cycle {
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node(node_),
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empty
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}
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fn main() {
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let mut x: Box<_> = box cycle::node(node_ {a: box cycle::empty});
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// Create a cycle!
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match *x {
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cycle::node(ref mut y) => {
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y.a = x; //~ ERROR cannot move out of
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}
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cycle::empty => {}
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};
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}
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