Re: Questions about the Prohibition of String Subclasses in responses

[James Tucker <jftucker@gmail.com>]

On 6 Oct 2009, at 07:40, Michael Koziarski wrote:

>
>> Fortunately I don't know of any extensions that crazy as there's no
>> point in subclassing at that point.  And if there are, maybe people
>> using them deserve to get their apps broken :>
>
> Seems very unlikely yeah.
>
>>> Having said that, I've been surprised before
>>
>> Part of me wants to apply this change and stick it into a release  
>> just
>> to see what (if anything it) breaks.  Fortunately for the rest of you
>> I'm not part of the Rack core team :)
>
> ditto on all points :)

I've just moved us over to kind_of in Lint from instance_of, in all  
cases of instance_of. Generally speaking the spec needs to ensure that  
the types supplied can be sent straight to IO.

I think if anyone uses a type to breach this, they should find the  
bugs appear in their own apps for reasonably well expected reasons,  
although most errors will show up in the handlers themselves.

I've also cherry picked for the 1.0.1 release.

>
> -- 
> Cheers
>
> Koz