From: Yukihiro Matsumoto <matz@...>
Date: 2008-05-09T00:49:46+09:00
Subject: Re: Comparing String with Symbol

Hi,

In message "Re: Comparing String with Symbol"
    on Fri, 9 May 2008 00:43:19 +0900, Roger Pack <rogerpack2005@gmail.com> writes:

|I'd use either one except that [quoting Tim Harper]
|
|once a symbol is allocated, it is never garbage collected.
|
|This opens up a potential DOS attack: if you convert any user input to 
|symbols (via #to_sym or #intern), they could easily fill your symbol 
|space up and eat all of the available system memory.

That's true but there are some other ways for potential DOS attack,
which I don't disclose here.  So you don't have to worry too much.

Anyway, I have a plan to make Symbol garbage collected in 1.9 near
future.

							matz.