Re: Visibility
Daniel Bonniot <[email protected]> Tue, 05 Apr 2005 12:30:41 +0200
| Newsgroups | gmane.comp.lang.nice.general |
|---|---|
| Message-ID | <[email protected]> |
> > Since we agree that "private" means visible in the module, then > > what is the problem? A private field is visible outside it's > > closest "scope" (its class) to the whole module. That's similar to > > 'default' being visible outside the module to the whole package. > > Because it's different from what Java calls "private". It's not different, given that in Java you essentially have one class per file. There might be a difference compared to the case where you define several toplevel classes in the same Java source file, but that's so much out of practice that I don't think it matters. If I'm not mistaken, in C++ where member methods can be written outside the class and in the same file, member methods can access private fields. So that's fairly consistent with the proposed private in Nice. > >> Other languages seem to do alright with one file per package. Perhaps > >> thats because they can re-export imported symbols which allows for > >> package aggregation, ie., one public package and several internal > >> packages. Nice and Java only provide this implicitly. By the way, I think it could be useful to have an "export" keyword to explicitely re-export imported symbols. One example is "wrapper" libraries like NiceSwing that retype and add functionality to existing libraries. Daniel ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click