On Sat, Sep 24, 2011 at 01:41, Edward Kmett wrote:
You still need IO to get the stable name out to use. :)
I don't understand this statement. Consider the lookup operation in the
paper and in your System.Mem.StableName.Map:
lookupSNMap :: SNMap k v - StableName k - IO (Maybe v)
lookup ::
Hi Edward,
On Thu, Sep 22, 2011 at 16:50, Edward Kmett wrote:
I have a stable-maps package that provides lookup and inserting into a
map via stable names.
The paper mentions the need for a mutable finite map, and all the operations
are IO. Do you know why this is and what's different with
How do you do that, since Stable Names have not an Ord instance?. Using the
Eq instance the lookup should be O(n).
The paper suggest that SNMap is a hash table, presumably with
hashStableNames underneath:
This should work more or less . using Data.HashTable
Import Data.HashTable
import
You still need IO to get the stable name out to use. :)
Sent from my iPad
On Sep 23, 2011, at 5:33 AM, Sean Leather leat...@cs.uu.nl wrote:
Hi Edward,
On Thu, Sep 22, 2011 at 16:50, Edward Kmett wrote:
I have a stable-maps package that provides lookup and inserting into a map
via stable
I use hashStableName to split the names up then walk down the list use equality
comparisons on an expected O(1) items. I'll probably rewrite it using unordered
containers, since Tibbe does the same sans the stable names.
Sent from my iPad
On Sep 23, 2011, at 5:54 AM, Alberto G. Corona
I have a stable-maps package that provides lookup and inserting into a map
via stable names.
-Edward
On Thu, Sep 22, 2011 at 5:47 AM, Sean Leather leat...@cs.uu.nl wrote:
There is an abstract type called SNMap for stable names referred to in [1].
This has apparently disappeared from GHC a
I may be wrong, but I think the original SNMap was a map from 'StableName's to
the specific values they were derived from, which also (IIRC) had some weak
referencing aspect as well. Using them as keys for arbitrary elements of the
phantom type is actually not type-safe, because equality of
Then don't do that. =) I should have mentioned, parametric keys are a no
no and can do bad things. ;)
-Edward
On Thu, Sep 22, 2011 at 2:33 PM, James Cook mo...@deepbondi.net wrote:
I may be wrong, but I think the original SNMap was a map from 'StableName's
to the specific values they were
