The latest version of trivial-constraint is 0.7.0.0-0.
trivial-constraint
Version 0.3.0.0 revision 1 uploaded by leftaroundabout.
Package meta
- Synopsis
- Constraints that any type, resp. no type fulfills
- Description
Since GHC 7.4, constraints are first-class: we have the constraint kind, and thus type-classes have a kind such as
* -> Constraint.These can be used as parameters to data types. They also can be combined quite nicely,
type NewConstraint a = (Constraint1 a, Constraint2 a)however you always need to start with a plain old type class when building constraints.
This library provides a type class that is not really a constraint at all, so you can "start from zero" with building up a custom constraint. Also its opposite (a constraint that no type can ever fulfill).
- Author
- Justus Sagemüller
- Bug reports
- n/a
- Category
- Constraints
- Copyright
- n/a
- Homepage
- https://github.com/leftaroundabout/trivial-constraint
- Maintainer
- sagemueller@geo.uni-koeln.de
- Package URL
- n/a
- Stability
- n/a