From: Hans Mackowiak <lists@...>
Date: 2013-03-21T18:45:04+09:00
Subject: Re: Ruby tainting on primitives

did you image how to "upgrade the Fixnum into a Bignum."?

it does not make sense, cause the world of Integer is parted ... little 
ones are Fixnum, big ones are Bignum.

you cant "upgrade" them so that you get an Bignum with the same value as 
a fixnum, you need a Holder Class for that, and if you use a 
HolderClass, you already have something that can be tainted

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