[Haskell-cafe] Re: Top Level <-

Ganesh Sittampalam ganesh at earth.li
Sat Sep 6 12:16:10 EDT 2008


On Sat, 6 Sep 2008, Brandon S. Allbery KF8NH wrote:
> On 2008 Sep 6, at 11:22, Ganesh Sittampalam wrote:
>> On Sat, 6 Sep 2008, Brandon S. Allbery KF8NH wrote:
>>> On 2008 Sep 6, at 6:10, Ashley Yakeley wrote:
>>>> The set of ACIO expressions exp is the "static initialisers" of M. The 
>>>> RTS must note when each static initialiser is run, and cache its result 
>>>> val. Let's call this cache of vals the "static results cache" of M.
>>>> When M is loaded, and a static results cache for M already exists, then 
>>>> it will be used for the vals of M.
>>> 
>>> This sounds "reachable" to me, and therefore static overhead and not a 
>>> leak.
>> 
>> You can call it what you like, but it's still unacceptable behaviour, 
>> particularly since clients of M will have no way of telling from its 
>> API that it will happen.
>
> You want run-once behavior without giving the runtime the ability to 
> tell that it's already been run?

I don't want run-once behaviour, other people do. I'm just trying to pin 
down what it would mean.

Ganesh


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