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83bd675477
Instead of iterating *all* swept cells when pruning weak containers, only iterate the cells actually *in* the container. Also, instead of compiling a list of all swept cells, we can simply check the Cell::state() flag to know if something should be pruned.
45 lines
913 B
C++
45 lines
913 B
C++
/*
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* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/WeakMap.h>
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namespace JS {
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WeakMap* WeakMap::create(GlobalObject& global_object)
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{
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return global_object.heap().allocate<WeakMap>(global_object, *global_object.weak_map_prototype());
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}
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WeakMap::WeakMap(Object& prototype)
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: Object(prototype)
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, WeakContainer(heap())
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{
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}
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WeakMap::~WeakMap()
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{
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}
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void WeakMap::remove_dead_cells(Badge<Heap>)
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{
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// FIXME: Do this in a single pass.
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Vector<Cell*> to_remove;
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for (auto& it : m_values) {
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if (it.key->state() != Cell::State::Live)
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to_remove.append(it.key);
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}
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for (auto* cell : to_remove)
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m_values.remove(cell);
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}
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void WeakMap::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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for (auto& entry : m_values)
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visitor.visit(entry.value);
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}
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}
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