Raw Metadata XML
<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, &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>