39 lines
935 B
Rust
39 lines
935 B
Rust
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// 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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// This would previously leak the Box<Trait> because we wouldn't
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// schedule cleanups when auto borrowing trait objects.
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// This program should be valgrind clean.
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static mut DROP_RAN: bool = false;
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struct Foo;
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impl Drop for Foo {
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fn drop(&mut self) {
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unsafe { DROP_RAN = true; }
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}
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}
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trait Trait {}
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impl Trait for Foo {}
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pub fn main() {
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{
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let _x: &Trait = box Foo as Box<Trait>;
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}
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unsafe {
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assert!(DROP_RAN);
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}
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}
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