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LibJS: Revoke any outstanding WeakPtr<Shape> when zombifying shapes

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The forward transition cache in Shape uses WeakPtr<Shape> to learn when
a cached transition has been garbage collected.

When running in zombification mode, we have to explicitly revoke any
outstanding WeakPtrs to a Shape when it becomes a zombie. That ensures
that it gets pruned from transition caches.
This commit is contained in:
Andreas Kling 2021-09-11 17:01:45 +02:00
parent cd7dbe3e97
commit b9eb8d00ca
2 changed files with 6 additions and 0 deletions
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5
Userland/Libraries/LibJS/Runtime/Shape.cpp
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@ -221,4 +221,9 @@ FLATTEN void Shape::add_property_without_transition(PropertyName const& property
add_property_without_transition(property_name.to_string_or_symbol(), attributes);
}
void Shape::did_become_zombie()
{
revoke_weak_ptrs();
}
}