refuse 0.0.6

An easy-to-use, incremental, multi-threaded garbage collector
Documentation 
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use refuse::{CollectionGuard, Root};

#[test]
fn clone() {
    let mut guard = CollectionGuard::acquire();
    let root = Root::new(42_u32, &guard);
    let clone = root.clone();
    let reference = root.downgrade();

    assert_eq!(reference.load(&guard), Some(&42));

    // This collection should not remove anything.
    guard.collect();
    assert_eq!(reference.load(&guard), Some(&42));

    // Drop the root reference.
    drop(root);

    // We still have `clone`, this should still not free our data.
    guard.collect();
    assert_eq!(reference.load(&guard), Some(&42));

    // Drop the clone, and now the data should be freed.
    drop(clone);
    guard.collect();
    assert_eq!(reference.load(&guard), None);
}