32 lines
905 B
Rust
32 lines
905 B
Rust
// Copyright 2014 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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// Creating a stack closure which references a box and then
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// transferring ownership of the box before invoking the stack
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// closure results in a crash.
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#![feature(box_syntax)]
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fn twice(x: Box<usize>) -> usize {
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*x * 2
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}
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fn invoke<F>(f: F) where F: FnOnce() -> usize {
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f();
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}
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fn main() {
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let x : Box<usize> = box 9;
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let sq = || { *x * *x };
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twice(x); //~ ERROR: cannot move out of
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invoke(sq);
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}
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