From: "Nicolas V." <lists@...>
Date: 2013-03-21T07:41:46+09:00
Subject: Re: Ruby tainting on primitives

I understand now that we cannot taint Fixnums in the current Ruby 
implementations.

My question is whether there is an inherent conceptual reason not to 
support this behavior based on the language model Ruby tries to provide. 
You said that tainting Fixnums is not possible because Fixnums because 
they are implemented as singletons for performance reasons. But this is 
an implementation detail, not something that's part of the language 
model.

Let me formulate it like this: if I wrote a patch for Ruby to support 
tainting Fixnums with no performance overhead, would you accept it, or 
do you think tainting Fixnums semantically does not make sense? If not, 
why?

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