[e-lang] "Scope" or "Environment"? Your observations wanted

David-Sarah Hopwood david.hopwood at industrial-designers.co.uk
Tue Aug 12 10:37:22 CDT 2008


Kevin Reid wrote:
> On Aug 11, 2008, at 18:16, Lex Spoon wrote:
> 
>> Environments are closely related to the ambient authority that  
>> caps folks talk about.
> 
> That's a bit of an alarming notion, but I can't think of a refutation  
> at the moment.

The only difference is that the scope of the variables in an environment
is restricted -- but that's a critical difference. In an object-capability
language, restriction of scopes is the most important (or the only?)
security mechanism.

-- 
David-Sarah Hopwood


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