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Concurrent Memoization
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| module Memoize | |
| //More generic variant of http://www.fssnip.net/c4 | |
| open System.Collections.Concurrent | |
| let cache = ConcurrentDictionary<(string * obj) option,Lazy<obj>>() | |
| let memoizeConcurrent (caller:string) (f: ('a -> 'b)) = | |
| fun (x :'a) -> | |
| (cache.GetOrAdd(Some (caller, x|>box), lazy ((f x)|>box)).Force() |> unbox) : 'b |
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