darling-JavaScriptCore/runtime/WeakMapImplInlines.h
2020-08-29 15:28:47 -04:00

56 lines
2.0 KiB
C++

/*
* Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "WeakMapImpl.h"
namespace JSC {
// Note that this function can be executed in parallel as long as the mutator stops.
template<typename WeakMapBucket>
void WeakMapImpl<WeakMapBucket>::finalizeUnconditionally(VM& vm)
{
auto* buffer = this->buffer();
for (uint32_t index = 0; index < m_capacity; ++index) {
auto* bucket = buffer + index;
if (bucket->isEmpty() || bucket->isDeleted())
continue;
if (vm.heap.isMarked(bucket->key()))
continue;
bucket->makeDeleted();
++m_deleteCount;
RELEASE_ASSERT(m_keyCount > 0);
--m_keyCount;
}
if (shouldShrink())
rehash(RehashMode::RemoveBatching);
}
}