767ed1a71f
This fixes the categorization of the upvars of procs (represented internally as once fns) to consider usage to require a loan. In doing so, upvars are no longer allowed to be moved out of repeatedly in loops and such. Closes #10398 Closes #12041 Closes #12127
20 lines
617 B
Rust
20 lines
617 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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fn main() {
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let r = {
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let x = ~42;
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let f = proc() &x; //~ ERROR: `x` does not live long enough
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f()
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};
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drop(r);
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}
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