/*
 * 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);
    {
        ConcurrentJSLocker locker(thisObject->symbolTable()->m_lock);
        SymbolTable::Map::iterator end = thisObject->symbolTable()->end(locker);
        for (SymbolTable::Map::iterator it = thisObject->symbolTable()->begin(locker); it != end; ++it) {
            if (mode == DontEnumPropertiesMode::Include || !it->value.isDontEnum()) {
                if (it->key->isSymbol() && !propertyNames.includeSymbolProperties())
                    continue;
                propertyNames.add(Identifier::fromUid(vm, it->key.get()));
            }
        }
    }
}

} // namespace JSC
