public static ICancelValueContainer CreateCancelContainer <TCancel>(ref TCancel reason)
{
ICancelValueContainer cancelValue;
if (typeof(TCancel).IsValueType)
{
cancelValue = CancelContainer <TCancel> .GetOrCreate(ref reason);
}
else
{
#if CSHARP_7_OR_LATER
if (((object)reason) is ICancelationToContainer internalCancelation)
#else
ICancelationToContainer internalCancelation = reason as ICancelationToContainer;
if (internalCancelation != null)
#endif
{
// reason is an internal cancelation object, get its container instead of wrapping it.
cancelValue = internalCancelation.ToContainer();
}
else if (ReferenceEquals(reason, null) || reason is OperationCanceledException)
{
// Use void container instead of wrapping OperationCanceledException, or if reason is null.
cancelValue = CancelContainerVoid.GetOrCreate();
}
else
{
// Only need to create one object pool for reference types.
object o = reason;
cancelValue = CancelContainer <object> .GetOrCreate(ref o);
}
}
return(cancelValue);
}
public IValueContainer ToContainer(ITraceable traceable)
{
#if CSHARP_7_OR_LATER
if (((object)Value) is CanceledExceptionInternal e)
#else
CanceledExceptionInternal e = Value as CanceledExceptionInternal;
if (e != null)
#endif
{
return(e);
}
return(CancelContainer <T> .GetOrCreate(Value));
}
