Name spaces in Spoon

Colin Putney cputney at
Sat May 27 03:55:22 UTC 2006

On May 26, 2006, at 8:26 PM, Andreas Raab wrote:

> Dan Ingalls wrote:
>> Yes, 'twas I.  Here's what I liked and still do like about it:  it  
>> is a message-based
>> interface to independent modules.  I learned a lot from dealing  
>> with the direct
>> links in the superclass chain and global variables, when trying to  
>> get the full
>> advantage out of imageSegment-based modules.
> You get very similar advantages when you consider all references to  
> "outside" globals be really definitions inside the module's  
> namespace itself. In other words, if module Foo would use "Array  
> new" it would really mean "Foo::Array" (e.g., the value of #Array  
> inside the module Foo) and you could populate (parametrize) that  
> via, say "Foo::Array := Collections::Array" etc. This has the added  
> advantage that there is no true "global" access to anything (e.g.,  
> no ambient authority beyound what was explicitly given to the  
> module) and that multiple modules can co-exist with different  
> parametrizations.

Yes! An excellent approach.

I think we rely on globals way, way too much. It makes some things  
simpler, but it comes with a high price.


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