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Install

Install this package:

emerge -a dev-haskell/kinds

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

autounmask dev-haskell/kinds

Or alternatively:

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

Package Information

Description:

Subkinds are the kind-level analog to subtypes. A kind denotes a set of types, and a subkind of some base kind denotes a subset of the base kind’s set of types. Haskell has no support for subkinds and subkind polymorphism. However, this package can be used to emulate subkinds of kind @*@ and subkind variables. To define a new subkind, the user declares a type that represents the subkind, and instantiates some classes. Afterwards, the user can declare types to be of that subkind and universally quantify over the inhabitants of the subkind. Since subkinds are represented by types, type-level polymorphism can be used to emulate kind-level polymorphism. For detailed information, please refer to Section 6 of the paper /Generic Record Combinators with Static Type Checking/.

Homepage:

http://darcs.wolfgang.jeltsch.info/haskell/kinds

License:

BSD

Versions

Metadata

Description

• Subkinds are the kind-level analog to subtypes. A kind denotes a set of types, and a subkind of some base kind denotes a subset of the base kind’s set of types. Haskell has no support for subkinds and subkind polymorphism. However, this package can be used to emulate subkinds of kind @*@ and subkind variables. To define a new subkind, the user declares a type that represents the subkind, and instantiates some classes. Afterwards, the user can declare types to be of that subkind and universally quantify over the inhabitants of the subkind. Since subkinds are represented by types, type-level polymorphism can be used to emulate kind-level polymorphism. For detailed information, please refer to Section 6 of the paper /Generic Record Combinators with Static Type Checking/.

Maintainers

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

<pkgmetadata>
	<maintainer type="project">
		<email>haskell@gentoo.org</email>
		<name>Gentoo Haskell</name>
	</maintainer>
	<longdescription>
		Subkinds are the kind-level analog to subtypes. A kind denotes a set of types, and a
		subkind of some base kind denotes a subset of the base kind&amp;#x2019;s set of types.
		Haskell has no support for subkinds and subkind polymorphism. However, this package
		can be used to emulate subkinds of kind&amp;#xA0;@*@ and subkind variables.
		
		To define a new subkind, the user declares a type that represents the subkind, and
		instantiates some classes. Afterwards, the user can declare types to be of that
		subkind and universally quantify over the inhabitants of the subkind. Since subkinds
		are represented by types, type-level polymorphism can be used to emulate kind-level
		polymorphism.
		
		For detailed information, please refer to Section&amp;#xA0;6 of the paper
		/Generic Record Combinators with Static Type Checking/.
	</longdescription>
</pkgmetadata>

Lint Warnings

• [Error] Missing md5-cache for ebuild kinds-0.0.1.5

Manifest