profunctors
sorty
| profunctors | sorty | |
|---|---|---|
| 4 | - | |
| 69 | 1 | |
| - | - | |
| 4.3 | 0.0 | |
| 2 months ago | over 14 years ago | |
| Haskell | Haskell | |
| BSD 3-clause "New" or "Revised" License | BSD 3-clause "New" or "Revised" License |
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profunctors
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How to use PostgreSQL with Haskell: hasql
We’ll also use contravariant-extras, vector, profunctors, and tuple packages to make a few things tidier (this isn’t required; it’s all copy-paste anyway).
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The Haskell Unfolder Episode 2: quantified constraints
Edward Kmett already added a superclass to Profunctor, but releasing this got stalled
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Alternative to arrows?
One of the main problems with the Arrow hierarchy is that it’s not particularly well-factored. The main Arrow class has five methods, which is both intimidating to newcomers and indicative that there’s some decomplection that can be done. I think the best alternative is to use the profunctors package; it deals much more fluently with things that can take values and then return them (functions, Kleisli arrows, etc). For example, the Arrow class is broken down across Profunctor and Strong. I had a term rewriting engine that used arrows, and I was never really happy with it until I moved it to profunctors.
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Why kind-level foralls don't interact with ScopedTypeVariables
Indeed, that is a somewhat contrived example that is meant to illustrate that ScopedTypeVariables aren't just limited to standalone type signature declarations—they can also be used in arbitrary subexpressions as well. Whether you prefer to use type signature declarations or expression type signatures largely depends on your personal tastes, but both styles are used in the "real world". For instance, here is one example of a use of expression type signatures + ScopedTypeVariables in the profunctors library.¹
sorty
We haven't tracked posts mentioning sorty yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
stratum-tool - Command-line tool for communicating with Electrum server
djinn - Generate Haskell code from a type
groupoids - Haskell 98 Groupoids
pipes-binary - Encode and decode binary streams using the pipes and binary libraries.
GPX - GPS eXchange Parser
compressed - Compressed generators for monoidal reducers
confsolve - Generalized file conflict resolving tool.
mios - A SAT solver written in Haskell.
headroom - ©️ Manager for license headers in source code files.
sbv - SMT Based Verification in Haskell. Express properties about Haskell programs and automatically prove them using SMT solvers.
representable-profunctors - Representable profunctors
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