darling-JavaScriptCore/runtime/PropertySlot.cpp
2017-08-12 09:48:01 -07:00

69 lines
2.2 KiB
C++

/*
* Copyright (C) 2005, 2008 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 "PropertySlot.h"
#include "GetterSetter.h"
#include "JSCJSValueInlines.h"
#include "JSObject.h"
namespace JSC {
JSValue PropertySlot::functionGetter(ExecState* exec) const
{
ASSERT(m_thisValue);
return callGetter(exec, m_thisValue, m_data.getter.getterSetter);
}
JSValue PropertySlot::customGetter(ExecState* exec, PropertyName propertyName) const
{
// FIXME: Remove this differences in custom values and custom accessors.
// https://bugs.webkit.org/show_bug.cgi?id=158014
JSValue thisValue = m_attributes & CustomAccessor ? m_thisValue : JSValue(slotBase());
return JSValue::decode(m_data.custom.getValue(exec, JSValue::encode(thisValue), propertyName));
}
JSValue PropertySlot::customAccessorGetter(ExecState* exec, PropertyName propertyName) const
{
if (!m_data.customAccessor.getterSetter->getter())
return jsUndefined();
return JSValue::decode(m_data.customAccessor.getterSetter->getter()(exec, JSValue::encode(m_thisValue), propertyName));
}
JSValue PropertySlot::getPureResult() const
{
JSValue result;
if (isTaintedByOpaqueObject())
result = jsNull();
else if (isCacheableValue())
result = JSValue::decode(m_data.value);
else if (isCacheableGetter())
result = getterSetter();
else if (isUnset())
result = jsUndefined();
else
result = jsNull();
return result;
}
} // namespace JSC