Control.Arrow.ArrowExc

The exception arrow class

Documentation

class (Arrow a, ArrowChoice a, ArrowZero a, ArrowIO a) => ArrowExc a where

Minimal complete definition

tryA

Methods

tryA :: a b c -> a b (Either SomeException c)

catchA :: a b c -> a SomeException c -> a b c

Instances

ArrowExc IOLA

Defined in Control.Arrow.IOListArrow

Methods

tryA :: IOLA b c -> IOLA b (Either SomeException c)

catchA :: IOLA b c -> IOLA SomeException c -> IOLA b c

ArrowExc (IOSLA s)

Defined in Control.Arrow.IOStateListArrow

Methods

tryA :: IOSLA s b c -> IOSLA s b (Either SomeException c)

catchA :: IOSLA s b c -> IOSLA s SomeException c -> IOSLA s b c