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[WPB-11386] Introduce length-preserving function mapRange to replace fmap. #4279

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Merged
battermann merged 5 commits into from
Oct 2, 2024
Merged

[WPB-11386] Introduce length-preserving function mapRange to replace fmap. #4279

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db92d9a
Introduce length-preserving function mapRange to replace fmap.
fisx Oct 1, 2024
8731409
hi ci
fisx Oct 2, 2024
77acdd4
Limit mapRange to lists.
fisx Oct 2, 2024
dcb9210
...
fisx Oct 2, 2024
8242120
...
fisx Oct 2, 2024
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1 change: 1 addition & 0 deletions changelog.d/5-internal/WPB-11386-map-range
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Introduce length-preserving function mapRange to replace Functor instance for Range data type.
6 changes: 5 additions & 1 deletion libs/types-common/src/Data/Range.hs
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Expand Up @@ -26,6 +26,7 @@
module Data.Range
( Range,
toRange,
mapRange,
Within,
Bounds (..),
checked,
Expand Down Expand Up @@ -98,7 +99,10 @@ import Test.QuickCheck qualified as QC
newtype Range (n :: Nat) (m :: Nat) a = Range
{ fromRange :: a
}
deriving (Eq, Ord, Show, Functor)
deriving (Eq, Ord, Show)

mapRange :: forall (n :: Nat) (m :: Nat) a b. (a -> b) -> Range n m [a] -> Range n m [b]
mapRange f (Range as) = Range (f `map` as)

toRange :: (n <= x, x <= m, KnownNat x, Num a) => Proxy x -> Range n m a
toRange = Range . fromIntegral . natVal
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2 changes: 1 addition & 1 deletion services/brig/src/Brig/IO/Intra.hs
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Expand Up @@ -326,7 +326,7 @@ notifyUserDeletionRemotes deleted = do
pure ()
Just rangedUcs -> do
luidDeleted <- qualifyLocal' deleted
embed $ notifyUserDeleted luidDeleted (qualifyAs ucs ((fmap (fmap (qUnqualified . ucTo))) rangedUcs))
embed $ notifyUserDeleted luidDeleted (qualifyAs ucs (mapRange (qUnqualified . ucTo) rangedUcs))
-- also sent connection cancelled events to the connections that are pending
let remotePendingConnections = qualifyAs ucs <$> filter ((==) Sent . ucStatus) (fromRange rangedUcs)
forM_ remotePendingConnections $ sendCancelledEvent luidDeleted
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