darling-JavaScriptCore/runtime/HashMapImpl.cpp
2020-08-29 15:28:47 -04:00

88 lines
3.4 KiB
C++

/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* 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.
*/
#include "config.h"
#include "HashMapImpl.h"
#include "JSCInlines.h"
namespace JSC {
template<>
const ClassInfo HashMapBucket<HashMapBucketDataKey>::s_info =
{ "HashMapBucket", nullptr, nullptr, nullptr, CREATE_METHOD_TABLE(HashMapBucket<HashMapBucketDataKey>) };
template<>
const ClassInfo HashMapBucket<HashMapBucketDataKeyValue>::s_info =
{ "HashMapBucket", nullptr, nullptr, nullptr, CREATE_METHOD_TABLE(HashMapBucket<HashMapBucketDataKeyValue>) };
template <typename Data>
void HashMapBucket<Data>::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
HashMapBucket* thisObject = jsCast<HashMapBucket*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
visitor.append(thisObject->m_next);
visitor.append(thisObject->m_prev);
static_assert(sizeof(Data) % sizeof(WriteBarrier<Unknown>) == 0, "We assume that these are filled with WriteBarrier<Unknown> members only.");
visitor.appendValues(bitwise_cast<WriteBarrier<Unknown>*>(&thisObject->m_data), sizeof(Data) / sizeof(WriteBarrier<Unknown>));
}
template <typename HashMapBucket>
void HashMapImpl<HashMapBucket>::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
HashMapImpl* thisObject = jsCast<HashMapImpl*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
visitor.append(thisObject->m_head);
visitor.append(thisObject->m_tail);
if (HashMapBufferType* buffer = thisObject->m_buffer.get())
visitor.markAuxiliary(buffer);
}
template <typename HashMapBucket>
size_t HashMapImpl<HashMapBucket>::estimatedSize(JSCell* cell, VM& vm)
{
return Base::estimatedSize(cell, vm) + static_cast<HashMapImpl<HashMapBucket>*>(cell)->approximateSize();
}
const ClassInfo* getHashMapBucketKeyClassInfo()
{
return &HashMapBucket<HashMapBucketDataKey>::s_info;
}
const ClassInfo* getHashMapBucketKeyValueClassInfo()
{
return &HashMapBucket<HashMapBucketDataKeyValue>::s_info;
}
template class HashMapImpl<HashMapBucket<HashMapBucketDataKeyValue>>;
template class HashMapImpl<HashMapBucket<HashMapBucketDataKey>>;
} // namespace JSC