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/*
* Copyright (C) 1999-2002 Harri Porten (porten@kde.org)
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2004-2021 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "GetterSetter.h"
#include "Exception.h"
#include "JSObjectInlines.h"
#include <wtf/Assertions.h>
namespace JSC {
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(GetterSetter);
const ClassInfo GetterSetter::s_info = { "GetterSetter"_s, nullptr, nullptr, nullptr, CREATE_METHOD_TABLE(GetterSetter) };
template<typename Visitor>
void GetterSetter::visitChildrenImpl(JSCell* cell, Visitor& visitor)
{
GetterSetter* thisObject = jsCast<GetterSetter*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
Base::visitChildren(thisObject, visitor);
visitor.append(thisObject->m_getter);
visitor.append(thisObject->m_setter);
}
DEFINE_VISIT_CHILDREN(GetterSetter);
JSValue GetterSetter::callGetter(JSGlobalObject* globalObject, JSValue thisValue)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
// FIXME: Some callers may invoke get() without checking for an exception first.
// We work around that by checking here.
RETURN_IF_EXCEPTION(scope, scope.exception()->value());
JSObject* getter = this->getter();
auto callData = JSC::getCallData(getter);
RELEASE_AND_RETURN(scope, call(globalObject, getter, callData, thisValue, ArgList()));
}
bool GetterSetter::callSetter(JSGlobalObject* globalObject, JSValue thisValue, JSValue value, bool shouldThrow)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSObject* setter = this->setter();
if (setter->type() == NullSetterFunctionType)
return typeError(globalObject, scope, shouldThrow, ReadonlyPropertyWriteError);
MarkedArgumentBuffer args;
args.append(value);
ASSERT(!args.hasOverflowed());
auto callData = JSC::getCallData(setter);
scope.release();
call(globalObject, setter, callData, thisValue, args);
return true;
}
} // namespace JSC
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