Popularity
3.5
Growing
Activity
0.0
Stable
3
2
2
Monthly Downloads: 11
Programming language: Haskell
License: BSD 3-clause "New" or "Revised" License
Tags:
Data
Latest version: v0.0.1
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Promo
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README
HSet
A simple implementation of heterogeneous sets
in Haskell, assuming they implement Typeable:
{-# LANGUAGE
DeriveDataTypeable
, ScopedTypeVariables
#-}
import Data.Typeable
import Data.HSet.Mutable as HSet
import Control.Monad.ST
data Foo = Foo
{ foo1 :: Int
, foo2 :: Int
} deriving (Typeable)
data Bar = Bar
{ bar1 :: Double
} deriving (Typeable)
mySet :: ST s (HSet s)
mySet = do
xs <- HSet.new
(fooKey :: HKey Foo) <- HSet.insert (Foo 1 2) xs
(barKey :: HKey Bar) <- HSet.insert (Bar 3.45) xs
You can then do lookups and deletions with the
fooKey and barKey mutable references.