Please make sure that it passes all current test cases before submitting the patch.  Also, it would be good to take the examples that have been given to you in this thread and create tests from them that demonstrate that they all work.  Particularly important will be demonstrating the security example that Igor gave above.

I'm telling you all this in advance, not to be mean, but to help you out. In this one thread, you've pulled out more responses from PMC members and committers than any thread in recent memory - and all of them agreed that it was a bad idea, and not likely to be implemented.  So, if you submit a patch, it needs to meet all the above criteria to prove us all wrong.  I'd rather tell you that up front than have you submit a half-working patch and then get shot down in a blaze of glory.  :)