From: "Nicolas V." <lists@...>
Date: 2013-03-21T02:35:33+09:00
Subject: Re: Ruby tainting on primitives

I'd like to use tainting to keep track of some data moving around.

The fact that numbers are immutable isn't really relevant. The fact that 
they're immutable doesn't necessitate they be singletons.

I realize that Fixnums are implemented as singletons as an optimization, 
but that's an implementation detail that shouldn't change the behavior 
of tainting. Ruby abstracts the implementation of Fixnums in other ways. 
For example, running `123.class` suggests that 123 is an instance of 
Fixnum. I don't understand why tainting should be different.

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