generic-maybe: A generic version of Data.Maybe

This module is a drop in replacement for Data.Maybe. It generalizes the functions to any types that share the same "sum of products" view of Maybe.

To use the module for you type, enable GHC's DeriveGeneric extension and derive a Generic instance for your type.

import GHC.Generics

data Result a = Success a | Fail
   deriving (Show, Generic)

After which you can use the functions, like your type was Data.Maybe.Maybe

> fromMaybe 'a' Fail
'a'

> fromMaybe 'a' $ Success 'b'
'b'

Modules

[Index]

Flags

Manual Flags

Name	Description	Default
test-doctests		Enabled
test-hlint		Enabled

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

Downloads

• generic-maybe-0.2.1.0.tar.gz [browse] (Cabal source package)
• Package description (as included in the package)

Maintainer's Corner

Package maintainers

• JonathanFischoff

For package maintainers and hackage trustees

• edit package information

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