C++ (Cpp) MessageEvent::data示例

JSValue* JSMessageEvent::getValueProperty(ExecState* exec, int token) const
{
    switch (token) {
    case DataAttrNum: {
        MessageEvent* imp = static_cast<MessageEvent*>(impl());
        return jsString(exec, imp->data());
    }
    case OriginAttrNum: {
        MessageEvent* imp = static_cast<MessageEvent*>(impl());
        return jsString(exec, imp->origin());
    }
    case LastEventIdAttrNum: {
        MessageEvent* imp = static_cast<MessageEvent*>(impl());
        return jsString(exec, imp->lastEventId());
    }
    case SourceAttrNum: {
        MessageEvent* imp = static_cast<MessageEvent*>(impl());
        return toJS(exec, WTF::getPtr(imp->source()));
    }
    case ConstructorAttrNum:
        return getConstructor(exec);
    }
    return 0;
}