Data.LookupTable

Documentation

type LookupTable k v = MVar (Map k v)

k-v table

newLookupTable :: (Ord k, MonadIO m) => m (LookupTable k v)

lookupTable :: (Ord k, MonadIO m) => k -> v -> LookupTable k v -> m v

Lookup, or insert if not exists

lookupTableM :: (Ord k, MonadIO m) => k -> m v -> LookupTable k v -> m v

Lookup, or insert if not exists

cacheInTableM :: (Ord k, MonadIO m) => LookupTable k v -> k -> m v -> m v

lookupTableM with swapped args

hasLookupTable :: (Ord k, MonadIO m) => k -> LookupTable k v -> m (Maybe v)

Just check existable

cachedInTable :: (Ord k, MonadIO m) => LookupTable k v -> (k -> m v) -> k -> m v

Make function caching results in LookupTable