31 lines
795 B
Rust
31 lines
795 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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struct X {
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x: ~str,
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}
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impl X : Drop {
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fn finalize(&self) {
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error!("value: %s", self.x);
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}
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}
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fn unwrap(+x: X) -> ~str {
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let X { x: y } = x; //~ ERROR deconstructing struct not allowed in pattern
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y
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}
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fn main() {
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let x = X { x: ~"hello" };
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let y = unwrap(x);
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error!("contents: %s", y);
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}
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