Alan Lovejoy wrote:
> <Andreas>
> Buffer streaming. It is very handy to be able to share the underlying
> collection with a stream when you know what you are doing.
> <Andreas>
> 
> Yes.  It would be even better to be able to do that wihout having to know so
> much about what some other object might or might not do.

I'm not advocating this as a general solution but I understood the 
question to be about whether anyone has ever used that and whether 
therefore such a change has the potential to break something severely. 
And indeed, if you know what you are doing, this can be very handy and 
very speedy.

Cheers,
   - Andreas

> Damien is right.  Either Streams should ensure their internal collections
> are unique to them, or they should assume that other objects have references
> to those collections, and might be expecting the stream to always be
> referencing the same collection.  The second approach can be implemented
> using #become:.
> 
> --Alan
> 
> 
> 
>