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LibJS: Notify WeakSets when heap cells are sweeped

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This is an implementation of the following optional optimization:
https://tc39.es/ecma262/#sec-weakref-execution
This commit is contained in:
Idan Horowitz 2021-06-09 20:10:47 +03:00 • committed by Linus Groh
parent fb63aeae4d
commit a00d154522
7 changed files with 62 additions and 3 deletions
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8
Userland/Libraries/LibJS/Runtime/WeakSet.cpp
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@ -16,10 +16,18 @@ WeakSet* WeakSet::create(GlobalObject& global_object)
WeakSet::WeakSet(Object& prototype)
: Object(prototype)
{
heap().did_create_weak_set({}, *this);
}
WeakSet::~WeakSet()
{
heap().did_destroy_weak_set({}, *this);
}
void WeakSet::remove_sweeped_cells(Badge<Heap>, Vector<Cell*>& cells)
{
for (auto* cell : cells)
m_values.remove(cell);
}
}