48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
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// Copyright 2015 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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// check that dropck does the right thing with misc. Ty variants
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use std::fmt;
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struct NoisyDrop<T: fmt::Debug>(T);
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impl<T: fmt::Debug> Drop for NoisyDrop<T> {
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fn drop(&mut self) {
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let _ = vec!["0wned"];
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println!("dropping {:?}", self.0)
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}
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}
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trait Associator {
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type As;
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}
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impl<T: fmt::Debug> Associator for T {
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type As = NoisyDrop<T>;
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}
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struct Wrap<A: Associator>(<A as Associator>::As);
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fn projection() {
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let (_w, bomb);
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bomb = vec![""];
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_w = Wrap::<&[&str]>(NoisyDrop(&bomb));
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//~^ ERROR `bomb` does not live long enough
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}
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fn closure() {
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let (_w,v);
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v = vec![""];
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_w = {
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let u = NoisyDrop(&v);
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//~^ ERROR `v` does not live long enough
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move || u.0.len()
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};
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}
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fn main() { closure(); projection() }
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