On 9/20/06, MonkeeSage <MonkeeSage / gmail.com> wrote:
> Austin Ziegler wrote:
>
> > No, you better not. If I use #<<, then I can "write" to a String, a
> > StringIO, an IO (socket, file, etc.), or an Array. Checking for #write
> > limits you to (mostly) actual IO objects.
>
> Then you'd be asking if the object _acts like_ (quacks like) an
> enumerable, would you not? Why wrap that in a begin....rescue clause
> and only spot it after the fact when you can catch it ahead of time?
> Certainly it doesn't violate duck-typing to ask what an object acts
> like (which is what imposing conditions on an object would be doing)?!
>

Because with duck typing, you break exactly at the point where an
object doesn't behave like it's supposed to, not before or (worse)
later.

> Regards,
> Jordan
>
>
>


-- 
- Simen