[cap-talk] Understanding capabilities in a web-desktop setting

[Ben Laurie]

On Tue, Aug 12, 2008 at 3:57 PM, Jonathan S. Shapiro <shap at eros-os.com> wrote:
> On Tue, 2008-08-12 at 15:26 +0100, Ben Laurie wrote:
>> On Mon, Aug 11, 2008 at 10:23 PM, Toby Murray
>> <toby.murray at comlab.ox.ac.uk> wrote:
>>
>> > I wasn't aware that E supported lazy evaluation. Is this an obtuse
>> > reference to E's promise system? While this allows some sense of "data
>> > driven" evaluation, I'd never thought of it as qualifying for "lazy
>> > evaluation" in the traditional sense. I'm hoping someone can clarify
>> > this point.
>>
>> I was actually thinking about the mechanism which allows you to send a
>> message but not wait for it to complete before continuing.
>
> Ben: the term "lazy evaluation" means something else.

I know. Not sure why I wrote it :-)

> I'm not sure that
> I fully understand what E does here, but I imagine that it may be very
> close to the Scheme DELAY and FORCE constructs, with the caveat that
> these.
>
> So perhaps this could be described as delayed evaluation rather than
> lazy evaluation.

Yeah.