mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-11 19:31:00 +00:00
76 lines
3.0 KiB
C++
76 lines
3.0 KiB
C++
/*
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* Copyright (C) 2019-2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "CachedSpecialPropertyAdaptiveStructureWatchpoint.h"
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#include "JSCellInlines.h"
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#include "StructureRareData.h"
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namespace JSC {
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CachedSpecialPropertyAdaptiveStructureWatchpoint::CachedSpecialPropertyAdaptiveStructureWatchpoint(const ObjectPropertyCondition& key, StructureRareData* structureRareData)
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: Watchpoint(Watchpoint::Type::CachedSpecialPropertyAdaptiveStructure)
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, m_structureRareData(structureRareData)
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, m_key(key)
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{
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RELEASE_ASSERT(key.watchingRequiresStructureTransitionWatchpoint());
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RELEASE_ASSERT(!key.watchingRequiresReplacementWatchpoint());
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}
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void CachedSpecialPropertyAdaptiveStructureWatchpoint::install(VM& vm)
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{
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RELEASE_ASSERT(m_key.isWatchable());
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m_key.object()->structure(vm)->addTransitionWatchpoint(this);
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}
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void CachedSpecialPropertyAdaptiveStructureWatchpoint::fireInternal(VM& vm, const FireDetail&)
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{
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if (!m_structureRareData->isLive())
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return;
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if (m_key.isWatchable(PropertyCondition::EnsureWatchability)) {
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install(vm);
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return;
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}
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CachedSpecialPropertyKey key = CachedSpecialPropertyKey::ToStringTag;
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if (m_key.uid() == vm.propertyNames->toStringTagSymbol.impl())
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key = CachedSpecialPropertyKey::ToStringTag;
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else if (m_key.uid() == vm.propertyNames->toString.impl())
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key = CachedSpecialPropertyKey::ToString;
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else if (m_key.uid() == vm.propertyNames->valueOf.impl())
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key = CachedSpecialPropertyKey::ValueOf;
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else {
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ASSERT(m_key.uid() == vm.propertyNames->toPrimitiveSymbol.impl());
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key = CachedSpecialPropertyKey::ToPrimitive;
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}
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m_structureRareData->clearCachedSpecialProperty(key);
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}
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} // namespace JSC
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