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rule tree: Avoid yet another dumb assertion when dropping the rule tree.

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Emilio Cobos Álvarez 2016-11-15 17:08:15 +01:00 • committed by Cameron McCormack
parent 22aebdf5d4
commit 181208a4e4
1 changed files with 3 additions and 1 deletions
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4
components/style/rule_tree/mod.rs
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@ -410,10 +410,12 @@ impl StrongRuleNode {
debug_assert!(thread_state::get().is_layout() &&
!thread_state::get().is_worker());
// NB: This can run from the root node destructor, so we can't use
// `get()`, since it asserts the refcount is bigger than zero.
let me = &*self.ptr;
debug_assert!(me.is_root());
let current = self.get().next_free.load(Ordering::SeqCst);
let current = me.next_free.load(Ordering::SeqCst);
if current == FREE_LIST_SENTINEL {
return None;
}