The data-default-instances-new-base package

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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

Versions0.0.1, 0.0.2, 0.0.2
Change logChangeLog.md
Dependenciesbase (==4.*), data-default-class (>=0.0 && <0.2), data-default-instances-base (>=0.0 && <0.1.0.1) [details]
LicenseBSD3
Copyright(c) 2015-2017, Peter Trško
AuthorPeter Trško
Maintainerpeter.trsko@gmail.com
CategoryData
Home pagehttps://github.com/trskop/data-default-extra
Bug trackerhttps://github.com/trskop/data-default-extra/issues
Source repositoryhead: 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)
UploadedThu Jan 5 22:06:34 UTC 2017 by PeterTrsko

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NameDescriptionDefaultType
old-data-default-class

Depend on (old) data-default-class >=0.0 && <0.1.2

DisabledAutomatic

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

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

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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.