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/*
* Copyright (C) 2012-2021 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "JSSymbolTableObject.h"
#include "JSCInlines.h"
#include "PropertyNameArray.h"
namespace JSC {
const ClassInfo JSSymbolTableObject::s_info = { "SymbolTableObject"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSSymbolTableObject) };
template<typename Visitor>
void JSSymbolTableObject::visitChildrenImpl(JSCell* cell, Visitor& visitor)
{
JSSymbolTableObject* thisObject = jsCast<JSSymbolTableObject*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
visitor.append(thisObject->m_symbolTable);
}
DEFINE_VISIT_CHILDREN(JSSymbolTableObject);
bool JSSymbolTableObject::deleteProperty(JSCell* cell, JSGlobalObject* globalObject, PropertyName propertyName, DeletePropertySlot& slot)
{
JSSymbolTableObject* thisObject = jsCast<JSSymbolTableObject*>(cell);
if (thisObject->symbolTable()->contains(propertyName.uid()))
return false;
return Base::deleteProperty(thisObject, globalObject, propertyName, slot);
}
void JSSymbolTableObject::getOwnSpecialPropertyNames(JSObject* object, JSGlobalObject* globalObject, PropertyNameArray& propertyNames, DontEnumPropertiesMode mode)
{
VM& vm = globalObject->vm();
JSSymbolTableObject* thisObject = jsCast<JSSymbolTableObject*>(object);
SymbolTable* symbolTable = thisObject->symbolTable();
{
ConcurrentJSLocker locker(symbolTable->m_lock);
SymbolTable::Map::iterator end = symbolTable->end(locker);
for (SymbolTable::Map::iterator it = symbolTable->begin(locker); it != end; ++it) {
if (mode == DontEnumPropertiesMode::Include || !it->value.isDontEnum()) {
if (!propertyNames.includeSymbolProperties() && it->key->isSymbol())
continue;
if (propertyNames.privateSymbolMode() == PrivateSymbolMode::Exclude && symbolTable->hasPrivateName(it->key))
continue;
propertyNames.add(Identifier::fromUid(vm, it->key.get()));
}
}
}
}
} // namespace JSC
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