exists
Existential datatypes holding evidence of constraints (by glaebhoerl)
constraints
Tools for programming with ConstraintKinds in GHC (by ekmett)
| exists | constraints | |
|---|---|---|
| - | 3 | |
| 1 | 72 | |
| - | - | |
| 0.0 | 5.6 | |
| almost 13 years ago | 6 months ago | |
| Haskell | Haskell | |
| BSD 3-clause "New" or "Revised" License | BSD 2-clause "Simplified" License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
exists
Posts with mentions or reviews of exists.
We have used some of these posts to build our list of alternatives
and similar projects.
We haven't tracked posts mentioning exists yet.
Tracking mentions began in Dec 2020.
constraints
Posts with mentions or reviews of constraints.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-11-02.
- GHC 7.4 gave us the ability to talk about ConstraintKinds. They stopped crashing the compiler in GHC 7.6
-
How is an instance of Monad an instance of Applicative?
If you are okay with some constraint-vocab you an see that Monad m entails Applicative m and Functor m
-
Monthly Hask Anything (November 2021)
If it's anywhere, I'd expect it in constraints, but it's not Dict and it's not Forall.
What are some alternatives?
When comparing exists and constraints you can also consider the following projects:
cluss - simple alternative to type classes
superconstraints
mios - A SAT solver written in Haskell.
readline-statevar - readline-statevar: Haskell readline wrapper library with variables (setX/getY) wrapped in state vars
confsolve - Generalized file conflict resolving tool.