Module system of D2: to be fixed still

[davidl]

在 Wed, 22 Apr 2009 16:55:44 +0800，bearophile <bearophileHUGS at lycos.com>  
写道:

> The current module&package system of D2 needs to be fixed, it has some  
> conceptual/semantic/logic holes. It looks like the result a good design  
> stopped mid-way.
>
> I have discussed them three times in the past

Yes, the package does not offer us enough functionalities. However, only  
saying "I have discussed/talked/stated/complained something XXX times"  
does nothing good to the current state. Contrarily, I prefer one list the  
reasons of why current one is broken and corresponding sophisticated  
solutions. If the proposer himself didn't get any sound plan, then he'd  
better raise an open question in this newsgroup.

I also have missed your discussions about the package system as some other  
D users. What are they?

For me, I find the following questionable parts:
1. loose the restriction of same package accessing of private members. If  
I remember correctly, MiniD suffers from it and that disallow MiniD source  
to be organized in a better way.

But I doubt if the restriction were lifted, current private qualifier will  
become very restrictive useful.

e.g. In package: mylib.Framework.GUI class "Widget" may have some private  
members don't want to be accessible by mylib.Framework.GUI.Dialog

2. The diagnose message does very little help.

3. There are some bizarre compiler bugs.
    e.g. http://d.puremagic.com/issues/show_bug.cgi?id=1592