but without that function, stable names are not that useful I guess? they would cause a space leak? On Mon, Aug 31, 2009 at 10:59 PM, Job Vranish <[email protected]> wrote:
> I also would like a isStableNameTargetAlive function. > Though if you had such a function then you probably _could_ make a > deRefStableName function, which, since there isn't one, probably means > that such a function would be hard to make. > > - Job > > On Sun, Aug 30, 2009 at 4:54 PM, Peter Verswyvelen <[email protected]>wrote: > >> >From the documentation, I don't think I grasp how stable names work. >> From the docs: >> "There is no deRefStableName operation. You can't get back from a stable >> name to the original Haskell object. The reason for this is that the >> existence of a stable name for an object does not guarantee the existence of >> the object itself; it can still be garbage collected." >> >> From this I can conclude that stable names behave a bit like weak >> pointers. >> >> However, suppose I have a hash table of these stable names. How can I >> remove the redundant stable names from the table? I mean removing stable >> names that refer to an object that is garbage collected? I don't see any >> function for checking that (e.g. isStableNameTargetAlive or something) >> >> Thanks, >> Peter >> >> >> >> >> >> _______________________________________________ >> Haskell-Cafe mailing list >> [email protected] >> http://www.haskell.org/mailman/listinfo/haskell-cafe >> >> >
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