26 lines
863 B
Rust
26 lines
863 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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// error-pattern:assigning to captured outer immutable variable in a stack closure
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// Make sure that nesting a block within a @fn doesn't let us
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// mutate upvars from a @fn.
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fn f2(x: &fn()) { x(); }
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fn main() {
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let i = 0;
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let ctr: @fn() -> int = || { f2(|| i = i + 1 ); i };
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error!(ctr());
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error!(ctr());
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error!(ctr());
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error!(ctr());
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error!(ctr());
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error!(i);
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}
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