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1. catchJust :: (HasCallStack, MonadCatch m, Exception e) => (e -> Maybe b) -> m a -> (b -> m a) -> m a

   safe-exceptions	Control.Exception.Safe

   catchJust is like catch but it takes an extra argument which is an exception predicate, a function which selects which type of exceptions we're interested in.

2. handleJust :: (HasCallStack, MonadCatch m, Exception e) => (e -> Maybe b) -> (b -> m a) -> m a -> m a

   safe-exceptions	Control.Exception.Safe

   Flipped catchJust.

3. tryJust :: (HasCallStack, MonadCatch m, Exception e) => (e -> Maybe b) -> m a -> m (Either b a)

   safe-exceptions	Control.Exception.Safe

   A variant of try that takes an exception predicate to select which exceptions are caught.

4. untilJust :: Monad m => m (Maybe a) -> IterT m a

   free	Control.Monad.Trans.Iter

   Repeatedly run a computation until it produces a Just value. This can be useful when paired with a monad that has side effects. For example, we may have genId :: IO (Maybe Id) that uses a random number generator to allocate ids, but fails if it finds a collision. We can repeatedly run this with

   retract (untilJust genId) :: IO Id
   

5. promotedJustDataCon :: TyCon

   ghc	GHC.Builtin.Types

   No documentation available.

6. mapAdjust :: (v -> v) -> Label -> LabelMap v -> LabelMap v

   ghc	GHC.Cmm.Dataflow.Label

   No documentation available.

7. adjustEdgeWeight :: CFG -> (EdgeWeight -> EdgeWeight) -> BlockId -> BlockId -> CFG

   ghc	GHC.CmmToAsm.CFG

   Adjust the weight between the blocks using the given function. If there is no such edge returns the original map.

8. mkJustExpr :: Type -> CoreExpr -> CoreExpr

   ghc	GHC.Core.Make

   Makes a Just from a value of the specified type

9. adjustDTyConEnv :: (a -> a) -> DTyConEnv a -> TyCon -> DTyConEnv a

   ghc	GHC.Core.TyCon.Env

   No documentation available.

10. expectJust :: HasCallStack => String -> Maybe a -> a

    ghc	GHC.Data.Maybe

    No documentation available.

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