fay-base-0.21.2.0: The base package for Fay.

Safe Haskell	None
Language	Haskell2010

Data.Either

Description

Either operations.

Synopsis

whenLeft :: Either a b -> (a -> Fay c) -> Fay (Maybe c)
whenRight :: Either a b -> (b -> Fay c) -> Fay (Maybe c)
isLeft :: Either a b -> Bool
isRight :: Either a b -> Bool

Documentation

whenLeft :: Either a b -> (a -> Fay c) -> Fay (Maybe c) Source #

Basically forM.

whenRight :: Either a b -> (b -> Fay c) -> Fay (Maybe c) Source #

Basically forM.

isLeft :: Either a b -> Bool Source #

Usual isLeft.

isRight :: Either a b -> Bool Source #

Usual isRight.