rbmm / pdbutil

how long c++ name of class/struct can be ? i found struct with 1404 symbols in name. but think this is not record.

struct Selector<
    ImplementsHelper<
        RuntimeClassFlags<ClassicCom>,
        0,
        ImplementsMarker<CImmersiveShellComponentWithSite>,
        ChainInterfaces<ITabletModePositioner, IBasicPositioner>,
        ChainInterfaces<IApplicationViewStatePositioner, IBasicPositioner>,
        ITabletModePositionerInternal,
        ITabletModePositionerPriv,
        IStartDismissalPolicy,
        IShellPositionerViewHandoff,
        IApplicationViewChangeListener,
        ITabletModeChangeListener,
        IImmersiveMonitorNotification,
        Implements<
            RuntimeClassFlags<ClassicCom>,
            IShellPositionerWindowingDelegationHandler,
            IImmersiveShellHookNotification,
            IMultitaskingViewVisibilityNotification,
            IShellTargetingChangeNotification,
            IFullScreenPositionerPrivateNotification,
            ITransitionNotification
        > 
    >,
    ImplementsHelper<
        RuntimeClassFlags<ClassicCom>,
        1,
        ChainInterfaces<ITabletModePositioner, IBasicPositioner>,
        ChainInterfaces<IApplicationViewStatePositioner, IBasicPositioner>,
        ITabletModePositionerInternal,
        ITabletModePositionerPriv,
        IStartDismissalPolicy,
        IShellPositionerViewHandoff,
        IApplicationViewChangeListener,
        ITabletModeChangeListener,
        IImmersiveMonitorNotification,
        Implements<
            RuntimeClassFlags<ClassicCom>,
            IShellPositionerWindowingDelegationHandler,
            IImmersiveShellHookNotification,
            IMultitaskingViewVisibilityNotification,
            IShellTargetingChangeNotification,
            IFullScreenPositionerPrivateNotification,
            ITransitionNotification
        > 
    > 
>