40 lines
1.2 KiB
Rust
40 lines
1.2 KiB
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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// compile-flags:-Z no-opt
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use comm::*;
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// This test has to be setup just so to trigger
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// the condition which was causing us a crash.
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// The situation is that we are capturing a
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// () value by ref. We generally feel free,
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// however, to substitute NULL pointers and
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// undefined values for values of () type, and
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// so this caused a segfault when we copied into
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// the closure.
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//
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// The fix is just to not emit any actual loads
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// or stores for copies of () type (which is of
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// course preferable, as the value itself is
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// irrelevant).
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fn foo(&&x: ()) -> Port<()> {
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let p = Port();
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let c = Chan(&p);
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do task::spawn() |copy c, copy x| {
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c.send(x);
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}
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p
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}
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fn main() {
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foo(()).recv()
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}
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