mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
/*
|
|
* Copyright (C) 2018-2019 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 "MetadataTable.h"
|
|
|
|
#include "JSCJSValueInlines.h"
|
|
#include "OpcodeInlines.h"
|
|
#include "UnlinkedMetadataTableInlines.h"
|
|
|
|
namespace JSC {
|
|
|
|
MetadataTable::MetadataTable(UnlinkedMetadataTable& unlinkedMetadata)
|
|
{
|
|
new (&linkingData()) UnlinkedMetadataTable::LinkingData {
|
|
unlinkedMetadata,
|
|
1,
|
|
};
|
|
}
|
|
|
|
struct DeallocTable {
|
|
template<typename Op>
|
|
static void withOpcodeType(MetadataTable* table)
|
|
{
|
|
table->forEach<Op>([](auto& entry) {
|
|
entry.~Metadata();
|
|
});
|
|
}
|
|
};
|
|
|
|
MetadataTable::~MetadataTable()
|
|
{
|
|
for (unsigned i = 0; i < NUMBER_OF_BYTECODE_WITH_METADATA; i++)
|
|
getOpcodeType<DeallocTable>(static_cast<OpcodeID>(i), this);
|
|
linkingData().~LinkingData();
|
|
}
|
|
|
|
void MetadataTable::destroy(MetadataTable* table)
|
|
{
|
|
Ref<UnlinkedMetadataTable> unlinkedMetadata = WTFMove(table->linkingData().unlinkedMetadata);
|
|
table->~MetadataTable();
|
|
// Since UnlinkedMetadata::unlink frees the underlying memory of MetadataTable.
|
|
// We need to destroy LinkingData before calling it.
|
|
unlinkedMetadata->unlink(*table);
|
|
}
|
|
|
|
size_t MetadataTable::sizeInBytes()
|
|
{
|
|
return linkingData().unlinkedMetadata->sizeInBytes(*this);
|
|
}
|
|
|
|
} // namespace JSC
|