Real closures

Klaus D. Witzel klaus.witzel at
Sat Oct 7 12:53:44 UTC 2006

Hi J J,

the "real" about closures depends on whom you ask and where you ask. For  
an example see



On Sat, 07 Oct 2006 14:21:04 +0200, J J wrote:
> From: Jecel Assumpcao Jr
>> Sent: Monday, September 18, 2006 2:10 PM
>> A more radical change to the Squeak VM was Anthony Hannan's VI4 work,
>> which gave us better performance and real closures. But though his new
>> bytecodes were cleaner, my impression is that he felt the gain wasn't
>> enough to justify losing the historical connection to the "blue book"
>> design.
> So what happened with this?  I have seen several references in this list  
> (this is the first one I found) of someone making a good closure  
> implimentation and it getting rejected.  Why are they getting rejected?   
> I think real completel closures are a requirement for any modern  
> language.  Even Java and C++ (!!!) will have then within a few years.

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