The data-default-instances-new-base package

[Tags:bsd3, library]

Orphan instances for Default type class, which is defined in package data-default-class.

In addition to instances reexported from data-default-instances-base package, following Default instances are provided:

 instance Default a => Default (Const a b) where
     def = Const def

 instance Monad m => Default (Kleisli m a b) where
     def = Kleisli return

 instance Default Version where
     def = Version [] []

Following instances are available only for base >= 4.7.0.0:

 instance Default (Proxy a) where
     def = Proxy

 instance Default SomeNat where
     def = SomeNat (Proxy :: Proxy 0)

 instance Default SomeSymbol where
     def = SomeSymbol (Proxy :: Proxy "")

Following instances are available only for base >= 4.8.0.0:

 instance Alternative f => Default (Alt f a) where
     def = Alt empty

 instance Default a => Default (Identity a) where
     def = Identity def

 instance Default Natural where
     def = 0

Following instances are available only for base >= 4.9.0.0:

 instance Default a => Default (NonEmpty a) where
     def = def :| []

 instance Bounded a => Default (Min a) where
     def = minBound

 instance Bounded a => Default (Max a) where
     def = maxBound

 instance Default (Option a) where
     def = Option Nothing

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Properties

Versions 0.0.1, 0.0.2
Change log ChangeLog.md
Dependencies base (==4.*), data-default-class (>=0.0 && <0.2), data-default-instances-base (>=0.0 && <0.1.0.1) [details]
License BSD3
Copyright (c) 2015-2017, Peter Trško
Author Peter Trško
Maintainer peter.trsko@gmail.com
Stability Unknown
Category Data
Home page https://github.com/trskop/data-default-extra
Bug tracker https://github.com/trskop/data-default-extra/issues
Source repository head: git clone git://github.com/trskop/data-default-extra.git
this: git clone git://github.com/trskop/data-default-extra.git(tag class-0.1.2)
Uploaded Thu Jan 5 22:19:14 UTC 2017 by PeterTrsko
Distributions NixOS:0.0.2
Downloads 83 total (4 in the last 30 days)
Votes
0 []
Status Docs available [build log]
Last success reported on 2017-01-05 [all 1 reports]

Modules

[Index]

Flags

NameDescriptionDefaultType
old-data-default-classDepend on (old) data-default-class >=0.0 && <0.1.2DisabledAutomatic

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

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Maintainer's Corner

For package maintainers and hackage trustees

Readme for data-default-instances-new-base

Readme for data-default-instances-new-base-0.0.2

data-default-instances-new-base

Hackage Hackage Dependencies Haskell Programming Language BSD3 License

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Description

Orphan instances for Default type class, which is defined in package data-default-class.

In addition to instances reexported from data-default-instances-base package, following Default instances are provided:

instance Default a => Default (Const a b) where
    def = Const def

instance Monad m => Default (Kleisli m a b) where
    def = Kleisli return

instance Default Version where
    def = Version [] []

Following instances are available only for base >= 4.7.0.0:

instance Default (Proxy a) where
    def = Proxy

instance Default SomeNat where
    def = SomeNat (Proxy :: Proxy 0)

instance Default SomeSymbol where
    def = SomeSymbol (Proxy :: Proxy "")

Following instances are available only for base >= 4.8.0.0:

instance Alternative f => Default (Alt f a) where
    def = Alt empty

instance Default a => Default (Identity a) where
    def = Identity def

instance Default Natural where
    def = 0

Following instances are available only for base >= 4.9.0.0:

instance Default a => Default (NonEmpty a) where
    def = def :| []

instance 'Bounded' a => Default (Min a) where
    def = minBound

instance Bounded a => Default (Max a) where
    def = maxBound

instance 'Default' ('Option' a) where
    def = Option Nothing

This package is intended to be used in conjunction with data-default package or directly with data-default-class package.

License

The BSD 3-Clause License, see LICENSE file for details.

Contributions

Contributions, pull requests and bug reports are welcome! Please don't be afraid to contact author using GitHub or by e-mail.