From: "Nicolas V." <lists@...>
Date: 2013-03-20T12:18:40+09:00
Subject: Ruby tainting on primitives

Hi there,

I am trying to use tainting on Ruby primitives, but it seems to be
difficult:

~ (main) > x = 123
=> 123
~ (main) > x.taint
=> 123
~ (main) > x.tainted?
=> false
~ (main) > x = 999999999999999999999999999999999
=> 999999999999999999999999999999999
~ (main) > x.taint
=> 999999999999999999999999999999999
~ (main) > x.tainted?
=> true
~ (main) >

Fixnum doesn't allow to be tainted, but Bignums are.
I was wondering if we could upgrade Fixnums into Bignums whenever they
get tainted.
In other words, I'd like automatic boxing on primitives when tainting is
used.

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