Re: Generics vs. Message passing: object namespaces

On 24 Feb 2007, at 19:20, Mike Newhall wrote:

> At 03:24 PM 2/24/2007 +0100, Pascal Costanza wrote:
>> I find it hard to tell what is more common and what is not. None of
>> us has any empirical evidence for one position or the other. We are
>> just exchanging toy examples here. I don't want to make
>> generalizations based on toy examples.
>
> 	I hold that local namespaces are less likely to cause name  
> collisions than global ones and that that should not be a  
> controversial point.
>
>> Now, someone uses that code as follows:
>>
>> new ObjectContainer(new List(picture, gun, blood)).draw();
>>
>> Good idea?
>
> 	What is the point of this example?
>
>> I find it hard to believe that you want to write code that is at the
>> same time about two different kinds of concrete concepts. If that is
>> the case, it is rather exceptional and it is probably a good idea
>> anyway to be explicit about what you are talking about.
>
> 	Ah, now the purpose of the example is clear.  Perhaps  
> unintentionally, this is a straw man argument again.  No-one is  
> advocating the point you are arguing.

But the differentiation between gun.draw, blood.draw and picture.draw  
is the only example we have discussed so far.

?!?


Pascal

-- 
Pascal Costanza, mailto:[email protected], http://p-cos.net
Vrije Universiteit Brussel, Programming Technology Lab
Pleinlaan 2, B-1050 Brussel, Belgium