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handle dtors having generics in an order different from their ADT
Fixes #27997.
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Ariel Ben-Yehuda
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Aug 25, 2015
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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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#![feature(const_fn)] | ||
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use std::sync::atomic::{Ordering, AtomicUsize}; | ||
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use std::mem; | ||
struct S<U,V> { | ||
_u: U, | ||
size_of_u: usize, | ||
_v: V, | ||
size_of_v: usize | ||
} | ||
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impl<U, V> S<U, V> { | ||
fn new(u: U, v: V) -> Self { | ||
S { | ||
_u: u, | ||
size_of_u: mem::size_of::<U>(), | ||
_v: v, | ||
size_of_v: mem::size_of::<V>() | ||
} | ||
} | ||
} | ||
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static COUNT: AtomicUsize = AtomicUsize::new(0); | ||
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impl<V, U> Drop for S<U, V> { | ||
fn drop(&mut self) { | ||
assert_eq!(mem::size_of::<U>(), self.size_of_u); | ||
assert_eq!(mem::size_of::<V>(), self.size_of_v); | ||
COUNT.store(COUNT.load(Ordering::SeqCst)+1, Ordering::SeqCst); | ||
} | ||
} | ||
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fn main() { | ||
assert_eq!(COUNT.load(Ordering::SeqCst), 0); | ||
{ S::new(0u8, 1u16); } | ||
assert_eq!(COUNT.load(Ordering::SeqCst), 1); | ||
} |