On Nov 15, 2012, at 12:37 PM, Andrea Giammarchi wrote:

> I believe with is much more problematic than caller for all Engines out 
> there. A reference to "who is invoking" cannot be that bad ... is it?

Yes it is!  It is a capability leak.  It give a callee access to functions that 
would otherwise be inaccessible to the callee.  Who knows what mischief can be 
accomplished by calling such functions.

Allen





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