2010/7/22 Sudhakar Krishnamachari <[email protected]>
> And of course the extensibility it gives:
>
> [ 1->'asd'. 2->'asd'. 3->'dsd' ] asDictionary
>
I think Travis Griggs' once is much much nicer:
[{ 1->'asd'. 2->'asd'. 3->'dsd' } asDictionary] once
when once is sent to a BlockClosure it becomes itself into a
CachedBlockClosure that remembers and answers the evaluated value.
You could add selectors to this such as
onceEachSession - destroy the cached value on image startup
It doesn't require any special compiler machinery (unlike ##(...)) and so
there are no problems with browsing references or senders within
compile-time evaluated forms. It is easily extensible to different
life-times. It is portable.
my 2¢
Eliot
>
> ...
>
>
> On Thu, Jul 22, 2010 at 7:48 PM, Sudhakar Krishnamachari <
> [email protected]> wrote:
>
>> *
>> *>* > It's different because evaluated only once, either at method
>> compilation
>> *>* or at first execution (lazy initialization).
>> *
>>
>>
>
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