On Thu, Jan 19, 2012 at 12:00 AM, Andrea Giammarchi < [email protected]> wrote:
> On Thu, Jan 19, 2012 at 7:51 AM, Mark S. Miller <[email protected]>wrote: > >> >> Everyone on this thread, is there any need expressed in this thread that >> is not satisfied by InfiniteMap? >> >> > > I would say for "notification purpose" > > result = lazyFactory(key, defaultValue); > > would be more appropriate > Hi Andrea, as I just mentioned in my reply to Andreas, I think this is a good suggestion. However, > otherwise the defaultValue looses completely its meaning the moment "key" > is not there due the first if. > That's not quite true in the collection I posted, since an InfiniteMap is only *initially* total. It still emulates deletes by using tombstones to poke holes into its initially universal domain. When doing a get at a deleted key, the defaultValue would come into effect. > > Out of curiosity, Chrome experimental flag does not support get(key, > defaultValue) but get(key) only ... is this something missing or Map and > WeakMap will never support officially the second get() argument? > > br > -- Cheers, --MarkM
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