hashmap-throw-0.1.0.0: Throw behaviour for hashmap lookup.

LicenseMIT
Stabilityexperimental
Safe HaskellSafe
LanguageHaskell2010

Data.HashMap.Throw

Description

lookupOrThrow function for HashMap.

Synopsis

Documentation

lookupOrThrow :: (Eq a, Ord a, Show a, Typeable a, Hashable a, MonadThrow m) => a -> HashMap a b -> m b Source #

lookup lifted to MonadThrow that throws KeyNotFoundException.

newtype KeyNotFoundException a Source #

Exception thrown when a key is not found in a hashmap.

Constructors

KeyNotFoundException a 
Instances
Eq a => Eq (KeyNotFoundException a) Source # 
Instance details

Defined in Data.HashMap.Throw

Methods

(==) :: KeyNotFoundException a -> KeyNotFoundException a -> Bool #

(/=) :: KeyNotFoundException a -> KeyNotFoundException a -> Bool #

Ord a => Ord (KeyNotFoundException a) Source # 
Instance details

Defined in Data.HashMap.Throw

Methods

compare :: KeyNotFoundException a -> KeyNotFoundException a -> Ordering #

(<) :: KeyNotFoundException a -> KeyNotFoundException a -> Bool #

(<=) :: KeyNotFoundException a -> KeyNotFoundException a -> Bool #

(>) :: KeyNotFoundException a -> KeyNotFoundException a -> Bool #

(>=) :: KeyNotFoundException a -> KeyNotFoundException a -> Bool #

max :: KeyNotFoundException a -> KeyNotFoundException a -> KeyNotFoundException a #

min :: KeyNotFoundException a -> KeyNotFoundException a -> KeyNotFoundException a #

Show a => Show (KeyNotFoundException a) Source # 
Instance details

Defined in Data.HashMap.Throw

Methods

showsPrec :: Int -> KeyNotFoundException a -> ShowS #

show :: KeyNotFoundException a -> String #

showList :: [KeyNotFoundException a] -> ShowS #

(Typeable a, Show a) => Exception (KeyNotFoundException a) Source # 
Instance details

Defined in Data.HashMap.Throw

Methods

toException :: KeyNotFoundException a -> SomeException #

fromException :: SomeException -> Maybe (KeyNotFoundException a) #

displayException :: KeyNotFoundException a -> String #