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style: Assert we don't try to share against ourselves.

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Emilio Cobos Álvarez 2017-09-18 03:27:29 +02:00
parent 891bc7d174
commit a5842165d9
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components/style/sharing/mod.rs
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@ -751,6 +751,7 @@ impl<E: TElement> StyleSharingCache<E> {
target: E, target: E,
) -> Option<PrimaryStyle> { ) -> Option<PrimaryStyle> {
self.cache_mut().lookup(|candidate| { self.cache_mut().lookup(|candidate| {
debug_assert_ne!(candidate.element, target);
if !candidate.parent_style_identity().eq(inherited) { if !candidate.parent_style_identity().eq(inherited) {
return None; return None;
} }