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Install

Install this package:

emerge -a dev-haskell/stateref

If the package is masked, you can unmask it using the autounmask tool or standard emerge options:

autounmask dev-haskell/stateref

Or alternatively:

emerge --autounmask-write -a dev-haskell/stateref

Package Information

Description:

A collection of type-classes generalizing the read\/write\/modify operations for stateful variables provided by things like IORef, TVar, &c. Note that The interface has changed a bit from the 0.2.* version. \"*Ref\" functions are now called \"*Reference\" and new \"*Ref\" function exist with simpler signatures. The new 'Ref' existential type provides a convenient monad-indexed reference type, and the HasRef class indicates monads for which there is a default reference type for every referent.

Homepage:

https://hackage.haskell.org/package/stateref

License:

public-domain

Versions

Metadata

Description

• A collection of type-classes generalizing the read\/write\/modify operations for stateful variables provided by things like IORef, TVar, &c. Note that The interface has changed a bit from the 0.2.* version. \"*Ref\" functions are now called \"*Reference\" and new \"*Ref\" function exist with simpler signatures. The new 'Ref' existential type provides a convenient monad-indexed reference type, and the HasRef class indicates monads for which there is a default reference type for every referent.

Maintainers

• Gentoo Haskell (haskell@gentoo.org) - Type: project

<pkgmetadata>
	<maintainer type="project">
		<email>haskell@gentoo.org</email>
		<name>Gentoo Haskell</name>
	</maintainer>
	<longdescription>
		A collection of type-classes generalizing the
		read\/write\/modify operations for stateful variables
		provided by things like IORef, TVar, &amp;c.
		Note that The interface has changed a bit from the
		0.2.* version.  \"*Ref\" functions are now called
		\"*Reference\" and new \"*Ref\" function exist with
		simpler signatures.
		The new 'Ref' existential type provides a convenient
		monad-indexed reference type, and the HasRef class
		indicates monads for which there is a default
		reference type for every referent.
	</longdescription>
	<use>
		<flag name="usestm">Include instances for STM types.</flag>
		<flag name="usetmvar">Include instances for TMVar.</flag>
	</use>
</pkgmetadata>

Lint Warnings

• [Error] Missing md5-cache for ebuild stateref-0.3

USE Flags

Manage flags for this package: euse -i <flag> -p dev-haskell/stateref | euse -E <flag> -p dev-haskell/stateref | euse -D <flag> -p dev-haskell/stateref

Manifest