mirror of https://github.com/rust-lang/rust
26 lines
496 B
Rust
26 lines
496 B
Rust
// 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 { fn dummy(&self) { } }
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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::new(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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