45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
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// 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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#![feature(unboxed_closures)]
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// Tests that we can't move out of an unboxed closure environment
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// if the upvar is captured by ref or the closure takes self by
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// reference.
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fn main() {
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// By-ref cases
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{
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let x = box 0u;
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let f = |&:| drop(x); //~ cannot move
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}
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{
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let x = box 0u;
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let f = |&mut:| drop(x); //~ cannot move
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}
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{
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let x = box 0u;
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let f = |:| drop(x); //~ cannot move
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}
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// By-value cases
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{
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let x = box 0u;
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let f = move |&:| drop(x); //~ cannot move
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}
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{
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let x = box 0u;
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let f = move |&mut:| drop(x); //~ cannot move
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}
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{
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let x = box 0u;
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let f = move |:| drop(x); // this one is ok
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}
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}
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