Re: Object or Package ?

David Bernard wrote:
> I need some precision to understand my misunderstood about organisation.
> When I start to read document about Nice, I was happy because I think 
> great no more need to declare Helper class to enhance existing Class 
> (e.g. StringUtils in jakarta-commons/lang). I put the "jar" in the 
> classpath and the compiler detect extension So I could write :
> 
> String s ="...";
> if (s.isBlank) {
>    ...
> }
> 
> without need to import other thing than String to tell compiler that 
> String is an alias for java.lang.String.
> 
> So if method about String could be define in any package. Do I need to 
> tell from witch package, the method come ?

You need to import packages to declare that you are using them. Then all the 
methods in those packages become available.

> In this case Nice is a functionnal language with advanced feature about 
> structure (like Constructor, Properties, Inheritance,...). I thing it's 
> important because it helps to understand the approach and how to 
> organize source, documentation/api (object or functionnal),

Nice is a unification of the object and the functional style. This is made 
possible by multi-methods.

So, like in OO, you can create subclasses of existing classes. And like in 
functional style, you can create new operations (functions, methods) operating 
on existing types (classes).

The fact that both are possible is what makes Nice more modular and flexible. 
But indeed, it is at the heart of your concerns about how programs should be 
organized. I think this duality means that we shouldn't enforce one style over 
the other. Of course each project can decide to favor one, but the other 
always remains possible when needed (and eventually it will).


> Is it equivalent to write "o.equals(o2)" and "equals(o, o2)" ?

Yes, indeed, the first one is just syntactic sugar for the second.

Daniel


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