Intransition §á§Ú§ã§Ñ§Ý 21.02.2012 07:46:
> The OpenStruct class stores values in an internal hash `@table`. For 
> use
> with Marshal, it exposes this table via the method:
>
>     def marshal_dump
>       @table
>     end
>
> Seems to me that this exposure should be protected to prevent people 
> from
> modifying it in place, particularly adding non-symbol keys.
>
> But what is the proper way of doing this? Should the result be 
> frozen?
> Perhaps #dup? Or both? Or am I being over concerned and we shouldn't 
> bother?

If the person is motivated enough to discover this method, s/he will 
also be
motivated enough to use `open_struct.send(:instance_variable_get, 
:@table)'.
There is no way you can prevent something like this to happen in Ruby.

-- 
   WBR, Peter Zotov.